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    1UHV(H) Series Inductance Adjustable Resonant System can be used for Withstand Voltage test for 500kV or Smaller CVT and Electromagnetic Transformer. And the system is mainly composed by AC Power Source, Excitation Transformer, High voltage reactor etc. The whole system comply the standard: GB 50150-2016,DL/T 849.6-2016,DL/T 474.4-2018.
    And the system have following features:
    1.Fixed Frequency systems 50Hz/60Hz
    2.Inductance is manually adjustable
    3.Silica or Epoxy Insulated Cylinder designs
    4.The output voltage and current waveform are stable and good
    5.Only 1/Q times the test capacity is required for the power supply capacity
    6.Perfect protection function including: over-current protection function, and the over-current protection
    7.Inductance is manually adjustable for every pc high voltage reactors.
    2UHV Series AC resonant Test System can conduct the Withstand Voltage test for 0~ 1000kV cable, hydraulic generator, main Transformer, Bus, GIS, Switchgear and other electric instrument etc. And the system is mainly composed by AC Power Source, Excitation Transformer, High voltage reactors, High voltage Divider etc. The whole system comply the standard: GB 50150-2016,DL/T 849.6-2016,DL/T 474.4-2018. And the system have following features:

    1.Ratings from 22 kV to over 10 million Volts
    2.Variable Frequency systems from 30 to 300 Hz
    3.High Q ratings for low input current requirements
    4.Transformer oil/ Silica /Epoxy Insulated Cylinder designs
    5.Series and Parallel Resonance configurations
    6.Stand-alone systems for factory/laboratory use
    7.Computerized-assisted controls with user-friendly software
    8.English and Chinese language switches freely, other language can be customized
    9.Equip with portable high voltage reactor Lifting device,make installation work more easy.
    10.Transportable, wheels on the base for AC Power Source, Excitation Transformer, High voltage Divider for on-site or in door test.
    3UHV Series AC resonant cable Test System is mainly conduct the Withstand Voltage test for 0~ 1000kV cable and other electric instrument etc. And the system is mainly composed by AC Power Source, Excitation Transformer, High voltage reactors, High voltage Divider etc. The whole system comply the standard: GB 50150-2016,DL/T 849.6-2016,DL/T 474.4-2018. And the system have following features:

    1.Ratings from 22 kV to over 10 million Volts, 50 or 60 Hz
    2.Variable Frequency systems from 30 to 300 Hz
    3.High Q ratings for low input current requirements
    4.Transformer oil/ Silica /dry type epoxy casting Insulated Cylinder designs
    5.Series and Parallel Resonance configurations
    6.Stand-alone systems for factory/laboratory use
    7.Computerized-assisted controls with user-friendly software
    8.English and Chinese language switches freely, other language can be customized
    9.Equip with portable high voltage reactor Lifting device,make installation work more easy.
    10.Transportable, wheels on the base for AC Power Source, Excitation Transformer, High voltage Divider for on-site or in door test.
    4UHV(L) Series Inductance Adjustable Power Frequency AC resonant Test System is mainly conduct the Withstand Voltage test for 250MW or smaller hydraulic generator and other electric instrument etc. And the system is mainly composed by AC Power Source, Voltage Regulator, Excitation Transformer, High voltage reactors, High voltage Divider etc. The whole system comply the standard: GB 50150-2016,DL/T 849.6-2016,DL/T 474.4-2018. And the system have following features:

    1.Output Voltage Ratings from 0~ 60kV,
    2.Fixed Frequency systems 50Hz
    3.High Q ratings for low input current requirements
    4.Transformer oil/ Silica /dry type epoxy casting Insulated Cylinder designs
    5.Inductance is automatically adjustable
    6.Series and Parallel Resonance configurations
    7.Stand-alone systems for factory/laboratory use
    8.Computerized-assisted controls with user-friendly software
    9.English and Chinese language switches freely, other language can be customized
    10.The waveform distortion rate (THD) is superior to existing AC withstand voltage tester
    11.Equip with portable high voltage reactor Lifting device,make installation work more easy.
    12.Transportable, wheels on the base for AC Power Source, Excitation Transformer, High voltage Divider for on-site or in door test.
    5UHV(L) Series Inductance Adjustable Variable Frequency AC resonant Test System is mainly conduct the Withstand Voltage test for 11kV/30MW or smaller hydraulic generator and other electric instrument etc. And the system is mainly composed by AC Power Source, Excitation Transformer, High voltage reactors, High voltage Divider etc. The whole system comply the standard: GB 50150-2016,DL/T 849.6-2016,DL/T 474.4-2018. And the system have following features:

    1.Output Voltage Ratings from 45~ 65kV,
    2.Variable Frequency systems from 45 to 65 Hz
    3.High Q ratings for low input current requirements
    4.Transformer oil/ Silica /dry type epoxy casting Insulated Cylinder designs
    5.Inductance is automatically adjustable
    6.Series and Parallel Resonance configurations
    7.Stand-alone systems for factory/laboratory use
    8.Computerized-assisted controls with user-friendly software
    9.English and Chinese language switches freely, other language can be customized
    10.The waveform distortion rate (THD) is superior to existing AC withstand voltage tester
    11.It has overvoltage protection, overcurrent function , zero start, system detuning (flashover) function etc
    12.Equip with portable high voltage reactor Lifting device,make installation work more easy.
    13.Transportable, wheels on the base for AC Power Source, Excitation Transformer, High voltage Divider for on-site or in door test.
    6UHV(W) Series Non-Partial Discharge AC resonant Test System is mainly conduct the Withstand Voltage test and Partial Discharge Test for 1000kV or smaller transformer and other electric instrument etc. And the system is mainly composed by PD free AC Power Source, PD free Excitation Transformer, PD free High voltage reactors,PD free High voltage Divider, PD Tester etc. The whole system comply the standard: GB 50150-2016,DL/T 849.6-2016, GB10229-1988. And the system have following features:

    1.System partial discharge level ＜5PC,
    2.Variable Frequency systems from 30 to 300 Hz
    3.Partial discharge measurement function
    4.High Q ratings for low input current requirements
    5.Transformer oil/Dry type epoxy casting Insulated Cylinder designs
    6.Series and Parallel Resonance configurations
    7.Stand-alone systems for factory/laboratory use
    8.Computerized-assisted controls with user-friendly software
    9.English and Chinese language switches freely, other language can be customized
    10.The waveform distortion rate (THD) is superior to existing AC withstand voltage tester
    11.It has Overcurrent protection, overvoltage protection, zero crossing, undervoltage and flashover protection function.
    12.Equip with portable high voltage reactor Lifting device,make installation work more easy.
    13.Transportable, wheels on the base for AC Power Source, Excitation Transformer, High voltage Divider for on-site or in door test.
    7UHV(J) series Non-partial discharge Hipot Test System is mainly conduct the Withstand Voltage test and Partial Discharge Test for Bushing, transformer, switch, GIS, Generator, Motor,Zinc oxide lightning arrester, cable, insulators and other electrical products. And the system is mainly composed by Partial discharge Detector, Coupling capacitor, Protective resistor, Isolation transformer, SF6 inflatable Hipot Test Transformer and Control box. The whole system comply the standard: DL/T 848.3-2004. And the system have following features:

    1.System partial discharge level ≤ 3PC
    2.Partial discharge measurement analyze function
    3.Output voltage is adjustable continuously
    4.Stand-alone systems for factory/laboratory use
    5.Computerized-assisted controls with user-friendly software
    6.Transportable, wheels on the base for AC Power Source, Excitation Transformer, High voltage Divider for on-site or in door test.
    7.Over Voltage protection , over current protection, and over voltage breakdown protection
    8UHV-2000A Partial Discharge analyzer is mainly used for detect and analyze the partial discharge level for electric products like cable, insulators, bushings, transformers etc. It comply the standards: IEC6067.11, IEC6067.11, IEC60885-3, DL/T 846.4-2016, DL/T 846.11-2016, the equipment have following features:

    1.4 partial discharge measurement channels sample, process, display independently;
    2.Inner, Outer trigger mode for options. Have zero mark indicator and can distinguish phase;
    3.Display mode: Ellipse, Line, Sine;
    4.Single partial discharge pulse wave analysis, to analyze it’s character;
    5.Support to store test wave and data, playback and analyze the stored test record;
    6.Gain: Adjust each channel independently, it doesn’t interfere other channels, and doesn’t change the measurement result of other channels;
    7.Support capture some special or random wave and to have specific analysis;
    8.Anti-noise, can get rid of the interfere noise which fixed in phase;
    9.Anti-noise with filter, can filter out the random noise which is not synchronized with power;
    10.Bandpass filter adopts analog and digital filter methods, the band can be freely combined to restrain any interferes;
    11.Freely select within 360º with single window mode, double window mode;
    12.Display test voltage while measuring the partial discharge;
    13.Support measure, time and wave analysis with the partial discharge record;
    14.Display partial discharge figure in 2D, 3D
    15.Freely store, print partial discharge picture, data, and automatically generate test report;
    9UHV-9002 Handheld Ultrasonic partial discharge detector is mainly used for Receive the ultrasonic signal generated by partial discharge to judge the existence and location where the partial discharge occur from switchgear. It comply with the standard: GB/T 7354-2018,

    has following features:

    1.The ultrasound and TEV partial discharge waveforms are on the same interface as the yellow, green, and red warning values, which is the first in China.
    2.In dBmV, transient earth voltage (TEV) and ultrasonic wave are used to detect the size of partial discharge;
    3.Adopting a color LCD screen, the display effect is more intuitive and friendly;
    4.Add earphone monitoring method, which can achieve real-time monitoring of partial discharge signals through earphones in ultrasonic mode;
    5.The display can display waveforms at all times and store valuable waveforms. Test data is automatically stored, which is conducive to reviewing test records and subsequent analysis of test data;
    6. Large signal amplification factor and high sensitivity; Signal reception range: effective distance 15m;
    7.Moderate intensity red laser alignment, strong focusing ability, accurate positioning, safe and reliable, simple and practical;
    8. Identify and locate the discharge of insulators on the iron tower, as well as the creepage of outdoor cable heads;
    9. Mainly to detect partial discharge of high-voltage switchgear;
    10.Convenient to use, small in size, light in weight, and easy to carry.

    10UHV-9003 Handheld Ultrasonic partial discharge detector is mainly used for Receive the ultrasonic signal generated by partial discharge to judge the existence and location where the partial discharge occur from switchgear, transformer, GIS etc. It is composed by: Handheld Ultrasonic PD Detector- main host, Composite TEV Sensor, Ultrahigh Frequency Sensor, Ultrasonic Sensor, High-frequency current transformer and Coaxial cable.

    It comply with the standard: IEC1000,GB/T 7354-2003,GB 4793.1-2007, and the equipment have following features:

    1. The system adopts multi-stage detection and frequency reduction technology to reduce the frequency of discharge signal. Meanwhile, high-speed AD conversion circuit is adopted to complete the digitization of the signal.

    2. By collecting different signals generated by partial discharge in different high-pressure equipment, the running state of the equipment can be quickly charged.

    3. The instrument can be installed and tested under the running state of the equipment without any influence on the normal operation of the equipment.
    11UHV-8003 Portable Ultrasonic Partial Discharge detector is mainly used for Receive the ultrasonic signal generated by partial discharge to judge the existence and location where the partial discharge occur from transformer, GIS, motor, cable and insulator and overhead cable etc. It is mainly composed by: Portable Ultrasonic Partial Discharge Detector- main host,Contact ultrasonic Sensor, High Frequency Transformer, UHF Sensor, Wave Concentrator etc.

    It comply with the standard: IEC 61000-4-2:1995,IEC 61000-4-5:1995,IEC 61000-4-3:1995, GB 4793.1-2007, IEC 61000-4-4:1995

    and the equipment have following features:
    1.4.0 inch RGB LCD touch screen, resolution 800*480
    2.Simultaneous interpreting PD signals of almost all electrical equipment with different sensors including: External contact ultrasonic sensor, External non-contact concentrator, (UHF sensor) Ultra high frequency sensor, ( HTFC sensor ) High frequency transformer
    3.The testing bandwidth range is 30kHz~2.0GHz, suitable for various frequency band detection principles;
    4.Humanized man-machine interface facilitates data management of different equipment;
    5.Built in ultrasonic sensors and transient ground voltage (TEV) sensors, can be externally connected to specialized sensors such as transformers, GIS, overhead lines, cables, etc;
    6.The non-invasive detection method is adopted, so there is no need to cut off power and configure additional high-voltage source in the test process, which is more convenient than the traditional pulse partial discharge detector;
    7.Configure different sensors to realize partial discharge detection of almost all electrical equipment;
    8.A user-friendly human-machine interface facilitates data management for different devices;
    9.Non intrusive detection mode is adopted, so there is no need to cut off power during the test, and no need to configure additional high-voltage source, which is more convenient than the traditional pulse type partial discharge detector;
    12ZGF series 200kV 300kV 400kV split type DC Hipot Tester is mainly composed by control main host, Voltage doubling Cylinder, Corona ring etc. It can conduct the DC high voltage withstand test and Leakage current test for valve arrester, power transformer, 35-500kV cable and Zinc oxide arrester, It is used for:
    1.Conduction current test of valve type lightning arrester.
    2.DC withstand voltage test and leakage current measurement of power transformers.
    3. DC withstand voltage test and leakage current measurement of high-voltage cables (35~500kV and below).
    4. U1mA DC reference voltage test and leakage current test at 0.75U1mA for zinc oxide lightning arrester.

    It has the feature:
    1.The DC high-voltage generator has small ripple coefficient, stable and reliable voltage output, no noise, and good reliability
    2.Equipped with overvoltage, overcurrent, zero voltage start and fault protection functions, with adjustable voltage protection values and intuitive display
    3.The voltage and current are displayed digitally, and there are readings when the power is turned on, making it easy to monitor the output status
    4.Equipped with 0.75 times voltage conversion for easy testing of zinc oxide lightning arresters
    13ZGF series 60kV 120kV integrated type DC Hipot Tester is mainly composed by control main host, Voltage doubling Cylinder, Corona ring etc. It can conduct the DC high voltage withstand test and Leakage current test for valve arrester, power transformer, 35-500kV cable and Zinc oxide arrester, It is used for:
    1.Conduction current test of valve type lightning arrester.
    2.DC withstand voltage test and leakage current measurement of power transformers.
    3. DC withstand voltage test and leakage current measurement of high-voltage cables (35~500kV and below).
    4. U1mA DC reference voltage test and leakage current test at 0.75U1mA for zinc oxide lightning arrester.
    Features:
    1.The DC high-voltage generator has small ripple coefficient, stable and reliable voltage output, no noise, and good reliability
    2.Equipped with overvoltage, overcurrent, zero voltage start and fault protection functions, with adjustable voltage protection values and intuitive display
    3.The voltage and current are displayed digitally, and there are readings when the power is turned on, making it easy to monitor the output status
    4.Equipped with 0.75 times voltage conversion for easy testing of zinc oxide lightning arresters
    5.The product has a compact structure, small size, and is easy to carry with one suitcase
    14
    ZGF(S) series Intelligent DC Hipot Tester is mainly composed by control main host, Voltage doubling Cylinder, Corona ring etc. It can conduct the DC high voltage withstand test and Leakage current test for valve arrester, power transformer, 35-500kV cable and Zinc oxide arrester, It is used for:
    3.Conduction current test of valve type lightning arrester.
    4.DC withstand voltage test and leakage current measurement of power transformers.
    3. DC withstand voltage test and leakage current measurement of high-voltage cables (35~500kV and below).
    4. U1mA DC reference voltage test and leakage current test at 0.75U1mA for zinc oxide lightning arrester.

    It has the feature:
    1.Fully automatic lightning arrester test, stage test, complete display of voltage rise and fall process, and withstand voltage time.
    2.Grounding detection function, if the instrument is not safely grounded, the instrument will display a grounding reminder.
    3.Automatic voltage withstand test, complete display of voltage rise and fall process, voltage withstand time.
    4.By using AIPWM technology, the inaccurate linearity of PWM has been adjusted, and the accuracy has been greatly improved. Ripple coefficient ≤ 0.2%.
    5.The instrument has added perpetual calendar and time functions, and the experimental report includes time and date.
    6.The double pressure cylinder adopts new materials, which are lightweight and sturdy. There are three built-in support feet at the bottom, which increases the stability of the double pressure cylinder. The exterior is coated with special insulation materials, with good electrical performance and strong moisture resistance.

    15ZGF series 60kV 300mA Internal Water Cooling DC Hipot Generator is mainly composed by control main host, Step-up transformer, Voltage doubling Cylinder, Corona ring etc. It can conduct the DC high voltage withstand test and Leakage current test for Generator or Generator Group, it has the feature:
    1.The DC withstand voltage test and DC leakage current test of the DC high-voltage generator are conducted under two conditions: blowing water or passing water
    2.Conduct the test under water blowing, using a general DC high-voltage generator. The equipment is lightweight, easy to operate, accurate in reading, and not affected by water quality conditions
    3.Conduct the test with water supply, and the entire device consists of only two parts: a control box and a voltage multiplier, with very simple wiring
    4.Conduct experiments with water supply and electronic control for easy operation; Voltage, current, etc. are directly read on the panel meter without conversion
    5.Conduct the test with water supply, and set the one minute timing and prompt function according to the test regulations
    1630kV ~ 90kV AC VLF Hipot Tester is mainly composed by control main host, High Voltage Generator and Self check capacitor etc. It can conduct the withstand voltage test for Large and medium-sized generators, motors, power cables which have larger capacity(uF).
    it has the feature:
    1.High degree of intelligence: adopting digital frequency conversion technology, microcomputer control, fully automated testing processes such as boosting, reducing voltage, and measuring.
    2.Convenient operation: simple wiring, 7-inch large LCD touch screen, convenient operation, and friendly human-computer interaction.
    3.Comprehensive protection: multiple protections (overvoltage protection, high and low voltage side overcurrent protection), quick action (action time ≤ 10ms), and safe and reliable instrument.
    4.Safe and reliable: The controller is connected to the high-voltage generator at low voltage, with photoelectric control, ensuring safe and reliable use.
    5.Adopting a high and low voltage closed-loop negative feedback control circuit, the output has no capacitance rise effect.
    6.Accurate sampling: High voltage current and voltage data are directly obtained through high-voltage side sampling, so the data is real and accurate.
    7.Fully equipped: 7-inch capacitive touch screen, LCD Chinese character display, automatic storage, and automatic printing.
    8.Wide testing range: 0.1Hz, 0.05Hz, and 0.02Hz multiple frequency selection, with a wide testing range.
    9.Convenient to carry: The instrument is compact and lightweight, making it very suitable for outdoor work.
    10.Multi-language display: Chinese and English switching function, other languages can do customize.
    17UHV-280 Insulation boots and gloves withstand voltage test device is mainly composed by : Control box, Testing rack 8 buckets, Oil Immersed Test Transformer and other optional components: electroscope racks, insulating rod rack, insulating pad rack etc. It can conduct the withstand voltage test and leakage current test for Insulation boots, gloves and helmet, electroscope,  insulating rod, insulating rope , insulating pad and insulating cloth etc. It has the feature:

    1.The instrument can perform tests on 8 insulated boots or gloves simultaneously, and measure the leakage current of each test object.
    2.The insulation shoe test adopts a dry test method of placing small steel balls inside, which breaks away from the traditional practice of filling water into the shoes for testing and making it difficult to dry after the test is completed.
    3.High and low voltage separation, leakage current is transmitted back to the control box using anti-interference wireless transmission technology, greatly protecting personal safety.
    4.Each test sample has a breaking mechanism. When any circuit breaks down or exceeds the set leakage current value, the test sample will automatically detach from the test without affecting other test samples for testing.
    5.The instrument adopts a 7-inch TFT touch large screen LCD Chinese character display, displaying a large amount of information. One screen simultaneously displays parameters such as test voltage, 8-way high-voltage leakage current, perpetual calendar, timing time, and Chinese character prompt content.
    6.Using a DC motor to control the voltage regulator boost process, fully automatic voltage withstand test is carried out. After the test starts, the instrument automatically switches on and boosts the voltage at the speed required by the national standard. When the predetermined voltage is reached, the timing starts, and the test voltage is maintained. When it reaches zero, the power is automatically cut off, indicating the end of the test. At the same time, the leakage current of each test object is displayed, and the test results are automatically saved.
    7.The insulation shoe test has a dedicated stainless steel grounding tray, and the insulation glove test has a dedicated stainless steel container for easy operation.
    8.The transformation ratio of the test transformer can be freely set, and it can also be matched with the existing transformer of the customer.
    9.Equipped with overcurrent protection function.
    18 YDJ Series 50~300kV Oil Immersed Test Transformer is mainly composed by :Control box, Test Transformer etc. It can conduct the Power Frequency AC DC withstand voltage test for cable, electric components, Insulating material etc.

    It has the features:

    1.Can customize larger voltage level (kV) and capacity (KVA)
    2.Easy to repair and maintain for long year use.
    3.Wheels on the base for convenient movement
    4.AC and DC Output switchable
    5.Steady performance
    19GTB Series 50~120kV Dry Type Test Transformer is mainly composed by :Control box, Test Transformer etc. It can conduct the Power Frequency AC DC withstand voltage test for cable, electric components, Insulating material etc.
    It has the features:
    1.Relatively lighter weight and smaller size
    2.Wheels on the base for convenient movement
    3.AC and DC Output is switchable with High Voltage Diode
    20YDQ Series 50~120kV SF6 Gas Type Test Transformer is mainly composed by :Control box, Test Transformer etc. It can conduct the Power Frequency AC DC withstand voltage test for cable, electric components, Insulating material etc.
    It has the features:
    1.Relatively smaller partial discharge
    2.Wheels on the base for convenient movement
    3.AC and DC Output is switchable with High Voltage Diode
    21 SGB-C Series 50~300kV High Voltage Meter is mainly composed by Displaying Head Meter and the Voltage Sampling Cylinder, it is used for measuring the AC and DC voltage in power frequency high voltage test.
    It has the features:

    1.High precision. Adopting precision high-voltage thin film capacitors and precision high-voltage glass glaze resistors, the input impedance is high, the testing current is reduced, the power consumption is small, and the measurement accuracy and stability of the instrument are improved; In the signal processing part, high-performance OP is used for signal amplification, and the double integral AD sampling technology is used. The four half LCD display has the highest resolution of 0.001 kV. It is a new generation of high-voltage electrostatic voltmeter.
    2.Good anti-interference performance. Adopting special shielding technology. The surface of the equalizing ball made of aluminum alloy material is smooth and shiny, effectively improving the electric field distribution around the equalizing ball, preventing tip discharge, and improving the anti-interference ability of measurement data. The low-voltage display instrument adopts a fully metal enclosed structure shielding, and the high-voltage voltage divider and low-voltage display meter are connected with high-quality coaxial cables to reduce the impact of high voltage on the display value, thus achieving high stability and linearity.
    3.Safe and reliable. The AC/DC voltage divider is composed of a high-voltage voltage divider and a low-voltage display instrument. The high-voltage voltage divider is made of DuPont filling materials and sealed with special technology, which is smaller in structure and lighter in weight. The internal partial discharge amount is minimized and its reliability is higher. There is no oil leakage issue. When working, the high-voltage divider and low-voltage instrument are connected by coaxial cable. The high-voltage and low-voltage parts are far away, and job security is safe and reliable.
    4.Easy to operate. The Dip switch is used to switch high and low voltage, AC and DC, which is convenient and fast. The four and a half LCD directly displays the measurement results, which is simple and intuitive. Bringing great convenience to on-site testing work.
    5.Convenient to carry. Adopting a portable structure, the entire machine uses an aluminum alloy packaging box as the casing, which can be easily disassembled. Small size, light weight, easy to carry, and very convenient to use.
    22DDL Fully automatic temperature rise test device is mainly composed of Temperature rise test system, upcurrent transformer and voltage regulator, it is used for the temperature rise test for various types of electrical equipment including GIS, power switches etc.

    It has the features:

    1.Zero start protection function;
    2.The test time is set independently and has a reminder function;
    3.After the current is set, the deviation can be adjusted automatically;
    4.The power supply and output current are displayed using computer software, with an accuracy of 0.5 level;
    5.Electrically controlled voltage rise and fall to achieve output current control, with control accuracy of Select;
    6.Industrial grade industrial computer control. Fully automatic intelligent control system without manual prediction try;
    7.The system has its own input voltage value and real-time display of active power;
    8.After setting the temperature rise range and parameters, the device automatically maintains the output current value. And has current error adjustable function;
    9.With 16 channels of temperature monitoring, measurement, and recording functions (expandable), and can automatically measure test the ambient temperature, compare the temperature at the test point to form a temperature rise, and automatically alarm when the temperature exceeds the set temperature. You can read the temperature and temperature rise at any point, with a measurement error of ± 1%;
    10.The console is equipped with a cabinet door for easy opening and equipment maintenance
    23UHV(V) Lightning Impulse Voltage Generator System is mainly composed of Lightning Impulse Voltage Generator, Lightning Impulse measuring control cabinet etc. It is used for the Lightning Impulse full wave, chopped wave and operation wave withstand voltage test for GIS, Insulators, Transformer, Bushing, HV switchgear, circuit breaker, load switch, ring network cabinet.

    It has the features:

    1.Adopting PLC technology and using two core optical fibers to transmit control commands and feedback device status, thereby avoiding electromagnetic interference and improving the safety of the control system and computer.
    2.The control function has manual, fully automatic, and program control functions, and each level of function is relatively independent to ensure the reliability of the system.
    3.Adopting thyristor voltage regulation method and equipped with a charging voltage feedback measurement system.
    4.The ignition ball gap and cutoff ball gap distance can be manually and fully automatically adjusted, and displayed on the LCD panel.
    5.A cutoff trigger pulse with adjustable time delay and a feedback system with generator ignition trigger.
    6.By using a function controlled constant current charging method, the stability of the charging voltage can reach 0.5%.
    7.The LCD panel can indicate the charging voltage and charging process of the impact generator, with an accuracy of 1%.
    8.The charging voltage and time can be directly input from the LCD panel.
    9.Equipped with abnormal charging protection function, capable of fully automatic or manual triggering of ignition pulses
    10.Indication of the working status of the impact generator, such as spontaneous combustion, not triggered, abnormal charging, stable charging, etc.
    11.The grounding and grounding release control of the equipment body and charging part.
    12.The charging voltage polarity can be automatically switched through the buttons on the controller
    13.Charging process with automatic or manual control of charging voltage
    14.Can automatically or manually sound the alarm bell
    15.Equipped with automatic protection for overcurrent and overvoltage
    16.Isolation filter shielding design
    24UHV-315 Automatic Comprehensive Transformer Test Bench mainly composed of Main Transformer Test Bench, Intermediate Frequency Generator Set, Intermediate Step-up Transformer, Induction Electric Voltage Regulator and AC Test Transformer etc. And it is used for conduct: 1. Transformer on load/no load characteristic test; 2.Transformer ratio, group and ratio error test; 3. Transformer DC resistance test; 5. Transformer insulation resistance test; 6. Transformer power frequency withstand voltage test; 7. Transformer frequency doubling withstand voltage test etc.

    It has the features:

    1. A single machine can complete the load test of distribution transformers below 100kVA at full current; The load test of distribution transformers below 250kVA can be completed at one-third of the rated current (at one-third of the rated current, the instrument can be converted to the load loss parameters at rated current. This machine is mainly suitable for use with a transformer comprehensive test bench to achieve high-precision testing of the no-load load characteristics of transformers).
    2.240*120 large screen LCD display, Chinese operation menu, high-speed printer to print test results and historical records.
    3. The instrument can be preset with 20 sets of parameters by the user, and these parameters can be deleted and added at any time as needed, making it more convenient to use.
    4. It can store 20 sets of test results using advanced storage methods.
    5. The data stored for parameters and test results adopts a strict inspection mechanism to ensure the correctness and reliability of the parameters and test results.
    6. Using high-performance processors as the core of control and computation, with fast sampling speed and good data stability.
    7. External Voltage transformer and current transformer can be connected to measure high voltage and large current.
    8. Direct sampling of current and voltage without passing through transformers greatly improves the measurement range and accuracy of the instrument, surpassing most similar instruments on the market;
    9. The instrument is small in size, light in weight, and easy to carry.
    25UHV-310 Transformer winding deformation tester is mainly composed of laptop and the main host, it is mainly used for test the deformation of the transformer winding. It has the feature:

    1. The hardware movement adopts DDS dedicated digital high-speed frequency scanning technology to accurately diagnose faults such as winding distortion, bulging, displacement, tilting, inter turn short circuit deformation, and inter phase contact short circuit.
    2. The acquisition and control system adopts highly integrated microprocessors, selects precise and highly stable components, and high-speed dual channel 16 bit A/D sampling (on-site testing changes the tap changer, resulting in significant changes in waveform curves). The measurement repetition rate for the same phase is above 99.5%.
    3. The instrument has dual measurement system functions of linear sweep frequency measurement and segmented sweep frequency measurement, and is compatible with the measurement modes of two current domestic technology schools.
    4. During the testing process, only the connecting busbar of the transformer needs to be removed, and all tests can be completed without the need for hanging or disassembling the transformer.
    5. When measuring transformers, the wiring personnel can freely lay signal input and output leads without affecting the measurement results. The wiring personnel can stay on top of the transformer oil tank without having to come down, reducing labor intensity.
    6. The amplitude frequency characteristics comply with the national technical specifications for amplitude frequency characteristic testers. The horizontal axis (frequency) has two types of graduation: linear graduation and logarithmic graduation, so the printed curve can be either a linear graduation curve or a logarithmic graduation curve. Users can choose according to their actual needs.
    7. The instrument has a high degree of intelligence, and the signal output amplitude is automatically adjusted by software to the range. The maximum amplitude peak is ± 10V, and the sampling frequency is automatically adjusted.
    8. The instrument has multiple frequency linear scanning measurement system measurement functions, with a scanning frequency of up to 1MHz. The frequency scanning interval can be divided into 0.25kHz, 0.5kHz, and 1kHz, providing more analysis of transformer deformation.
    9. Provide comparative analysis of historical curves, which can simultaneously load multiple historical curves for observation, and can specifically select any curve for horizontal and vertical analysis. Equipped with an expert intelligent analysis and diagnosis system, it can automatically diagnose the status of transformer windings, load 6 curves at the same time, automatically calculate the relevant parameters of each curve, automatically diagnose the deformation of the winding, and provide diagnostic reference conclusions.
    10. The software has powerful management functions, fully considering the needs of on-site use, and automatically saves environmental condition parameters to provide a basis for transformer winding deformation diagnosis. The measurement data is automatically analyzed and saved to disk, and an electronic document (Word) is generated for storage. It also has a color printing function, making it convenient for users to produce test reports.
    26UHV series Transformer DC Winding Resistance Tester is mainly used for test the winding resistance of the transformer or high voltage reactor. It has the features:

    1.Lithium battery powered or 220V AC powered adaptive, one charge, can continuously test the DC resistance of hundreds of transformers, and the testing process is simple and convenient

    2. Output six levels of current, with a maximum output of 10A current and a maximum output of 25V voltage, and automatic selection of current, convenient and fast

    3. Wide range, high accuracy, 500u Ω~50k Ω

    4. Equipped with resistance temperature conversion function

    5. It has multiple protection functions such as Counter-electromotive force protection, disconnection protection, power failure protection, overheat alarm, etc

    6. 5.6 inch ultra large industrial grade high brightness color LCD screen, displaying clearly in strong sunlight

    7. Equipped with an external printer for easy data printing

    8. It has native storage and USB storage
    27UHV-321 Transformer capacity and no-load load tester is mainly used for measure the transformer’s capacity, no-load characteristics and short-circuit losses. It has the features:

    1.Within the allowed measurement range of the instrument, it can be directly measured. If it exceeds the measurement range, external voltage and current transformers can be connected. The instrument can set the transformation ratio of external voltage and current transformers to directly display the applied voltage and current values.

    2.The instrument has a harmonic analysis function, which can measure the content and total distortion rate of multiple harmonics, and is equipped with original waveform and bar graph display.

    3. The instrument adopts large screen LCD display, which can display three-phase voltage, three-phase current, three-phase power, three-phase average voltage, average current, three-phase total power and relevant data on the same screen. Display and use Chinese menu with Chinese prompts, easy to operate.

    4.AC/DC dual use: lithium battery powered or 220V AC charger powered adaptive.

    5. Intelligent charging management, remaining battery display, low battery alarm, automatic backlight adjustment, and battery saving. 2.11 Clock and date display without power failure; The data storage methods are divided into local storage and USB storage, where local storage can store 200 test data, and local storage can be transferred to USB; The storage data format of USB flash drives is Word format, which can be edited and printed directly on the computer.

    6.Thermal printer printing function, fast and silent.

    7.The human-computer interaction interface is more user-friendly: the status bar at the top of the screen displays the real-time insertion status of the USB drive, and when operating on unconnected devices, the corresponding unconnected prompt information is displayed.

    8. Small size, light weight, easy to carry and use.
    28UHV-4000 series Transformer on-load switch tester is mainly used for measure the transition waveform, transition time, transient resistance values at each moment, and three-phase synchronization of the transformer's on-load tap changer, it has the feature:

    1. Vertical chassis structure, lightweight and convenient to carry.
    2. Built in embedded PC-104 industrial computer, fast speed and large storage capacity
    3. Built in precision constant current source with complete and reliable protection circuit
    4. 6-channel high-speed synchronous data sampling
    5. 7-inch wide temperature LCD with backlight, clear display in sunlight
    6. Graphical and textual display results
    7. T9 input method, capable of inputting numbers, letters, English characters, and various symbols
    8. Host storage capacity of 1G, capable of storing tens of thousands of sets of test data
    9. Equipped with external USB storage function to store more data
    10. USB flash drive data synchronization function, convenient data exchange
    11. Tree shaped storage structure, stored by station name, number, and tap location, convenient for data query
    12. Built-in panel thermal printer
    29UHV-331 transformer Turns Ratio Tester is mainly used for measure the transformer’s turns ratio and group, it has the feature:
    1.Applicable to transformers connected in Z type.
    2. Two output voltages are optional and applicable to transformer whose zero-load current is relatively high.
    3. Have wide testing range and the highest transformation ratio may reach 10000.
    4. Automatically calculate tap position.
    5. Fast speed, which is only 18 seconds for three-phase.
    6. Favorable repeatability.
    7. Automatically save 99 data at most.
    8. Flexible data processing, including retrieval, print, transfer to U-disk, delete and upload to PC computer for testing.
    9. Have transformer short-circuit protection and interturn short-circuit protection functions. In case of short circuit, relevant information will be displayed on the LCD screen in characters.
    10. The upper computer could control the whole testing process, save data .
    11. The manual is attached to the tester, providing convenience for users.
    12. The tester is small and is a little bigger than a piece of A4 paper.
    13. The tester is light and its weight is only 6.9kg.
    30UHV-342 Transformer capacitance & tan delta tester is mainly used for measure the transformer’s capacitance and tan delta value, it has the feature:

    1 With forward/reverse connection, internal/external standard capacitor, internal/external high voltage, multiple working modes and integrated structure, it can do all kinds of conventional dielectric loss test and insulation resistance measurement without any external auxiliary equipment.
    2 It has external standard capacitor interface, which can automatically track the frequency of external test power supply from 40Hz to 70Hz, supports power frequency power supply and series resonant power supply to conduct large-capacity and high-voltage dielectric loss test.
    3 It has the function of reminding the circuit of bad contact discharge, so as to determine whether the connection is reliable or not.
    4 With CVT self-excitation measurement function, C1/C2 can be measured at the same time by wiring, and automatically compensate for the influence of bus grounding and voltage division of standard capacitor. There is no need to change the wire and connect any accessories externally, and the high-voltage connection line can drag the ground.
    5 With the function of CVT variable ratio, CVT variable ratio, polarity and phase error can be measured.(optional)
    6 It has anti-wiring low-voltage shielding function. Under the condition of 220kVCVT bus grounding, 10kV anti-wiring dielectric loss measurement can be carried out on C11 without disconnecting the wires, and the main and subordinate capacitors can be measured at the same time with one connection.
    7 English text and text menu, large-screen backlight LCD display.
    8 Equipped with thermal printer, the printing data is clear, fast and noiseless.
    9 With calendar clock, can store 100 sets of measurement data.
    10 With computer interface. Through this interface, measurement, data processing and report output can be achieved, and internal measurement software can be upgraded. A computer can control 32 instruments, which can be integrated into the comprehensive high-voltage test vehicle.
    11 With the function of four-channel forward connection, the transformer bushing can measure three bushing of A/B/C at one time, saving time and effort (function optional)
    31UHV-404  Circuit Breaker Analyzer is mainly used for measure the Circuit Breaker’s mechanical characteristic

    It has the feature:

    1. It is applicable to SF6 switch, GIS combined electrical appliance, vacuum switch and oil switch of all models of metal contact produced at home and abroad.
    2. Linear travel sensor and rotary sensor are easy to install.
    3. Mainframe large screen, transparent, background light LCD, contrast electronic adjustment. Chinese menu prompt operation, switch action once, display all data and waveform map.
    4. The host can store multiple groups of on-site opening and closing test results, and the real-time clock in the host is convenient
    for archiving and storing the test date and time.
    5. Built in fast micro printer to print all data and atlas. 6. The instrument has powerful data analysis function, which can effectively analyze various index parameters of the mechanical
    characteristics of the circuit breaker.
    32UHV-H100A Contact Resistance Tester is mainly used for test the contact resistance of the high voltage circuit breaker analyzer, it has the features:


    1. High current: The circuit resistance tester adopts new power supply technology, which can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supply. It can effectively breakdown the oxide film on switch contacts and obtain good test results

    2. Strong anti-interference ability: Under severe interference conditions, the last digit of the LCD screen can be stable within ± 1 word range, with stable readings and good repeatability

    3. The circuit resistance tester has a long service life: all use high-precision resistors, effectively eliminating the impact of environmental temperature on the measurement results. At the same time, the use of military connectors enhances the vibration resistance performance

    3.Convenient to carry: small size and light weight
    33UHV-1200 Six Phase Replay Protection Tester is mainly used for test the characteristics of the replay protection equipment, and it has the feature:

    1.Flexible combination of voltage and current output: Six phase voltage and six phase current can be output, which has made it is possiable to be any combition, such as the output mode of the combination of conventional four phase current and three-phase current, six phase voltage mode, six phase current mode and 12 phase output mode. It not only can be compatible with the traditional way of various tests, but also can conveniently carry out differential test of three-phase transformer.
    2. Operation mode: The device is directly connected with a computer or a desktop computer, which is convenient and efficient and stable performance.
    3. A new hi-fi linear power amplifier:The output port has always insisted on using the modular linear power amplifier instead of the switching power amplifier, which has the high fidelity and high reliability function and excellent performance. High-mid frequency will not be produced to disturb the test, also ensure the smoothing accuracy of waveform produced by the whole course of the high current to the tiny current is excellent.
    4.High performance Mainframe: The output part adopts DSP control, which has fast operation, real-time digital signal processing capability, wide bandwidth and high resolution D/A conversion control. The output waveform has the features of high precision, small distortion and good linearity. With using a large number of advanced technology and precision components and materials and the structure of professional design, the device has the features of small volume, light weight, full function, easy to carry, boot can work, flow test is very convenient.
    5.Powerful software function: It can complete all kinds of high automatic validation work which is large and complex. It can also conveniently test and scan protection setting, playback of fault, real-time store test data, display vector, online print report and so on. Besides, six-phase current can facilitate the test of three-phase differential protection.
    6. Independent DC power output: An 110V and 220V adjustable DC power is designed to supply output.
    7. Complete interface: The device with USB communication port can communicate with the computer and other external devices.
    8. Perfect self-protection function: With reasonable design of the heat dissipation structure and the reliable and perfect hardware protection measures, it has the power soft start function and the software of the fault self-diagnosis and the output latch function.

    34UHV-103A CT PT Characteristic tester is mainly used for testing the current transformer and potential transformer. The test items mainly include excitation characteristic, transformation ratio, polarity, Degauss, 5％ and 10％ error curves,  secondary circuit check, withstand test of power frequency alternating current and secondary load. Adopt LCD, self-equipped minitype printer supporting field printing; supporting to use USB flash disk to dump data, with simple and convenient operation.      

    It has the features:

    1. Supports detection of CT and PT
    2. Meet the requirements of regulations such as GB 20840.3-2013 and GB 20840.2-2014
    3. Without the need for external auxiliary equipment, a single machine can complete all testing items, complete excitation and transformer specific polarity tests simultaneously in one test, and can test transformer bushing CT
    4. Equipped with a micro fast printer, it can directly print test results on-site
    5. Easy to operate with intelligent prompts, making it easier for users to get started
    6. Large screen LCD with graphical display interface
    7. Automatically provide CT/PT (excitation) inflection point values according to regulations
    8. Automatically provide 5% and 10% error curves
    9. Can save 3000 sets of test data without loss after power failure
    10. Support USB flash drive data transfer, which can be read from a standard PC and generate a WORD report
    11. Small and lightweight ≤ 22kg, very convenient for on-site testing.
    35UHV-500 cable fault tester is mainly composed of Cable fault locator-main host, Cable path locator, Pin-point locator, Pulse generator, AC hipot tester (Dry type) and control box.It can test on the High Resistance Flashover Fault, Grounding High and Low Resistance Fault, Short & Off Circuit on the Cable Fault and Poor contact and etc. If being equipped with sounding method and locating instrument, it can exactly detect the fault point. Furthermore, it especially applies to test for various power cable and communication cable.

    1. Widely used: Used for measuring various power cables, high-frequency coaxial cables, local telephone cables, and more than two evenly laid underground wires with different cross-sections and media, including high and low resistance, short circuits, open circuits, broken wires, as well as high resistance leakage and high resistance flashover faults. It can also be used to measure cable length and measure the propagation speed of radio waves in cables.

    2. Convenient to carry: The host is powered by lithium batteries, lightweight, easy to carry, and convenient for field testing and mine cable testing.
    3. Friendly human-machine interface: Adopting a large screen 320 × The 240 dot matrix English character graphic interface has clear and beautiful high brightness graphics, simple operation, and strong anti-interference ability.
    4. Safe and reliable: Adopting a new type of current sampler, a new sampling method with simple wiring, intuitive waveform analysis, complete isolation from high voltage, and absolute safety for the host and operators.
    5. High quality: All key components are made of imported components, ensuring the accuracy of test results.
    6. Exquisite appearance: Made of sturdy and wear-resistant materials, the overall texture and service life of the instrument are longer.
    36UHV-540 Zinc Oxide Arrester Tester is mainly used for the measurement and analysis of metal oxide arrester [MOA] leakage. It is mainly used for measuring the resistive current to analyze the degree of zinc oxide aging and damp.

    It has the features:
    1. Adopting a large screen LCD display and full English menu operation, it is easy to use.
    2. High precision sampling and processing circuits, advanced Fourier harmonic analysis technology, ensure more reliable data.
    3. The instrument adopts a unique high-speed magnetic isolation digital sensor to directly collect input voltage and current signals, ensuring the reliability and safety of the data.
    4. It has functions such as resistive current fundamental peak output and edge phase correction.
    5. The instrument is equipped with a calendar clock and a micro printer, which can store measurement data.
    37UHV-600 SF6 comprehensive tester is a set of SF6 humidity, SF6 purity, SF6 decomposition products testing in one, it is mainly used for testing the SF6 gas from SF6 insulated GIS or high voltage switchgear etc. It has the feature:

    1. Self calibration: the sensor probe can automatically calibrate the zero point, automatically eliminate the system error caused by zero point and drift, and ensure the accuracy of each measurement.
    2.Easy to operate, super large touch LCD screen, simple operation of WYSIWYG type.
    3.Optional equipped with pipeline cleaning device, automatic cleaning of internal pipeline after test, improve test speed and accuracy.
    4.Fast gas saving: after the machine is started and in the measurement state, the dew point measurement time is about 3 minutes.
    5.Self locking joint: the original imported self-locking joint is used, which is safe and reliable without air leakage.
    6.Data storage: it adopts large capacity design and can store up to 1000 groups of test data.
    7.Clear display: 7-inch large touch LCD directly displays dew point, micro water (PPM), SF6 purity, SO2, H2S, Co, HF content, ambient temperature, humidity, time and date.
    8.The built-in USB interface can be connected with the PC, and all the internal data of the instrument can be uploaded to the computer through the supporting software to facilitate data analysis.
    9.Built in large capacity rechargeable lithium battery, which can work continuously for more than 12 hours in one charge.
    38UHV-620 SF6 Micro Water Tester is an instrument which can mainly used for testing the Dew Point value of SF6, air, N2, inert gas, and other non-corrosive gases.

    It has the features:

    1. High stability: Under severe interference conditions, the measurement data can be stable within the range of ± 0.5 ℃, and has excellent long-term stability and good repeatability
    2. High precision: using original imported high-performance dew point sensors and high-speed 12 bit Σ－Δ AD analog-to-digital converter, with a maximum resolution of 0.1 ℃, fully meets the actual measurement requirements. Achieve accurate and reliable measurement results within the full range, wide measurement range, fast response speed, and stable and reliable measurement results
    3. Intelligent: Self calibration upon startup, sensor probe can automatically calibrate zero point, automatically eliminate system errors caused by zero drift, and ensure measurement accuracy
    4. Multiple protection: Equipped with oil pollution filtering device, it is not affected by dust particles and most chemical pollutants, and can provide anti oil pollution protection for sensors, making it extremely suitable for use in industrial environments
    5. Fast gas saving: After entering the measurement state, the dew point measurement time is 3-5 minutes.
    6. Powerful: 4.7-inch true color touch LCD display with full Chinese operation interface. Directly display the dew point value (℃), micro water value (uL/L), date and time, and dynamically display the dew point measurement curve. Real time storage of measurement data, up to 100 sets of measurement data can be stored
    7. Communication function: RS232 interface can be connected to the USB port of the PC, making it convenient for the PC to further process data
    8. Convenient to use: Adopting self locking connectors imported from Japan, easy to plug and unplug, safe and reliable, without air leakage. The sensitive touch buttons are convenient to operate and improve work efficiency. Built in large capacity rechargeable lithium battery, small size, light weight, and easy to carry
    39XP-1A Handheld SF6 Gas leakage Detector is an instrument which can quickly and sensitively Detect the leak of SF6 gas near the SF6 insulated GIS, Switchgear and other electric equipment, it have the features:
     

    1.All microprocessors with advanced digital signal processing capabilities are used for control.
    2. Three color video display
    3. Seven speed sensitivity setting, maximum enhancement of 64 times
    4. Touch keyboard
    5. Sensitivity can be adjusted at any time
    6. Automatic battery testing function
    7. Battery voltage indication
    8. With SAEJ1627 certification, it can detect R134a, R12, R22
    9. Can detect all halogen refrigerants
    10. Real mechanical pump sampling, providing forward airflow to the probe
    11. With gradient function
    12. Wireless and portable, only 2 No. 2 batteries are needed
    13. High strength instrument box for reliable protection of instruments
    14. 35cm flexible stainless steel probe rod
    40693.UHV-625 SF6 Gas Recovery filling storage device is kind of special equipment for recycling and filling SF6 gas in order to make and maintain the SF6 electrical equipment, it is suitable for the vacuum, charging, charging, purifying and recovering of the SF6 gas in the SF6 electrical equipment. It can directly to the recovery of SF6 gas in the form of liquid storage deposit container, and GIS in the residual pressure recovery to 53Kpa (absolute pressure) with a small volume, easy to move placed, with rapid vacuum pumping speed, drying and filtering on the recovery of SF6 gas, but also back filled with SF6 gas to SF6 Electrical equipment.

    It has the features:

    1 Built in filter adsorption system, can adsorb SF6 gas impurities, moisture, decomposition products and oil, etc..
    2 Integrated design and smaller size for easy movement and use.
    3 High efficiency filter maintenance free system, which greatly guarantees the quality of SF6 gas recovery.
    4 Built-in phase protector, whenever you can avoid errors due to host phase reversal concerns.
    5 All electrical systems are using quality brands.
    6 The quality will be greatly casters ground protection paint, and reduce the need to promote the artificial.
    7 The whole machine for air cooling without external water source.
    8 Built-in temperature protection system even in the -20 degrees Celsius can work under normal conditions.
    9 Built in the drying heating system, can be ensured after saturation of the desiccant can be activated by the device to heat regeneration, so no need to replace the desiccant.
    10 All ball valves for the sealing element with automatic compensation performance.
    11 With built-in electromagnetic valve power failure protection function, prevent power vacuum pump or motor oil return killed.
    41UHV-680 Transformer Oil Breakdown Voltage Tester is an instrument which can test the withstand voltage/ dielectric strength level for transformer oil,

    It has the features:

    1.The instrument adopts the large capacity single-chip microcomputer control,works stably and reliably.
    2 Instrument can eliminate the phenomenon of crash with wide range of watchdog circuit
    3. A variety of operation to choose, Instrument program with IEC156, ASTM D877 and ASTM D1816 three methods of national standard and custom  operations for different users’ multiple choice
    4. Instrument test cell is made of a special glass casting form once to eliminate the phenomenon of oil leaking and other interference
    5. instrument can take articularly high voltage terminal sampling design for test values to analogue-digital converter, to avoid the error caused in the analog circuit, to make more accurate measurement results.
    6. Instrument internal functions of overflowing, overvoltage, short circuit be protected,and are good for antijamming capability and electromagnetic compatibility
    7. Instruments are portable structure , easy to move, used inside and outside rooms.
    42UHV-645 oil chromatography analyzer is a system specifically designed to analyze the  dissolved gas of insulation oil. The system is mainly composed of oil chromatography analyzer, air generator, hydrogen generator, oscillation instrument, standard gas cylinder, argon gas cylinder, and computer etc. It can be used to test 9 different components of gases including N2, H2, O2, CH4, C2H4, C2H6, C2H2, CO, CO2.The instrument can be equipped with various high-performance detector options, such as FID, TCD, ECD, FPD, and NPD. Up to four detectors can be installed simultaneously.

    It has the features:
    1.Adopted the state-of-the-art 10/100M adaptive Ethernet communication interface, and built-in IP protocol stack, so that the instrument can easily through the internal local area network, the Internet to achieve long-distance data transmission;It is convenient to set up the laboratory, simplify the configuration of the laboratory and manage the analysis data;
    2.Instrument Internal Design 3 independent connection process, can be connected to the local processing (laboratory site), unit supervisor (e.g. quality inspection section chief, production director, etc.), as well as superior supervisor (e.g. environmental protection bureau, technical supervision bureau, etc.), can easily make the unit supervisor and supervisor real-time monitoring of the operation of the instrument and analysis of data results;
    3.the instrument is equipped with a network version of the workstation can support multiple chromatograph work (253),253 data processing and counter-control, simplified document management, and the maximum degree of reduction of the user's laboratory investment and operating costs;
    4.instruments can be connected to the manufacturer through the Internet connection, remote diagnostics, remote program updates, etc. (User license );
    5. the instrument can be equipped with a 5.7-inch color LCD screen or color touch screen to meet the needs of different users;
    6.The system has two sets of operating systems, Chinese and English, which can be switched freely;
    7. temperature control area, electronic flow controller(EFC),electronic pressure controller（EPC）can be freely named by the user, convenient for user use (optional);
    8.instruments operate in parallel with a multiprocessor to make the instrument more reliable, to meet complex sample analysis, and to choose from a variety of high-performance detector options such as FID、TCD、ECD、FPD and NPD,with up to fourdetectors installed simultaneously. Can also use the detector appendage method, afterthe purchase of the instrument is very convenient to choose and install other detectors,
    9.instrument using a modular structure design, design clear, easy to replace and upgrade, to protect the effectiveness of investment;
    10. the new microcomputer temperature control system, high temperature control accuracy, reliability and anti-jamming performance, with six completely independent temperature control system, can achieve sixteen-order program heating, so that the equipment can be competent for a wider range of sample analysis, ； with column box automatic rear door system, so that low temperature control accuracy is improved, rise / cooling faster;
    11. the instrument with advanced electronic flow controller (EFC)and electronic pressure controller（EPC）to achieve digital control, can greatly improve the reproducibility of qualitative and quantitative results;
    12.instrument design timing self-start procedure, can easily complete the on-line analysis of gas samples (Required with online automatic sample components);
    13. the operating system of the full microcomputer control keyboard, simple and convenient to operate, and design the detector automatic identification technology, with fault diagnosis and power loss data protection functions, can automatically remember the set parameters;
    14. the color spectrum machine has built-in low noise, high-resolution 24-bit AD circuit, and has the ability to store baselines and baseline deductions.
    15. It is suitable for WinXP, WIN2000, windows7 and other operating systems. The sampling data is read in by CDF file conforming to a / a (American Analytical Society) standard, so it can be connected with chromatogram workstation such as Agilent and waters.
    16. With full independent intellectual property rights, Modbus / TCP standard interface, it can be easily connected with DCS.
    17. The instrument can be connected with the automatic injector produced by many manufacturers at home and abroad, such as aoc-20i of Shimadzu, HT series high efficiency gas-phase liquid automatic injector of Italy HTA company, etc;
    43UHV-650 Automatic Closed Cup Flash Point Tester mainly used for test the petroleum oil products’ closed cup flash point value, It has the features:

    1.the instrument uses the ARM microprocessor technology,
    2.color LCD, resistive touch screen technology, English menu, human-computer interaction more convenient;
    3.instrument with power failure memory function;
    4.instrument with automatic ignition, display, and print results, automatic cooling function lock;
    5.instrument with igniter external brightness adjustment function equipment with accurate measurement, good repeatability, stable and reliable performance, simple operation of the advantages.
    6.Comply with D93 GB/T, 261-2008 ASTM standard method requirements.
    44UHV-655 Automatic open cup flash point & ignite point tester is mainly used to measure the open flash point value and ignition point value of petroleum products, it has the features:

    1.Adopt ARM series high-performance microprocessor, electric erasable memory (capable of storing thousands of data records),
    2. color LCD and touch screen, PID Self-tuning and other latest technologies
    3.Strong functionality. It can be used for both flash point and ignition point detection, and print test results. It has a clock chip inside, which automatically displays the current date, time, and power failure retention.
    2. High precision. The temperature error is controlled within ± 1.5 ℃, with a resolution of 0.1 ℃.
    3. Good repeatability. Under the premise of ensuring that the testing environment complies with GB3536 (ASTM D92) or GB/T 267-88, continuously test the same sample, and the difference in flash point values between the two is ≤ 4 ℃.
    4. High degree of automation. It can automatically complete the testing process, perform cooling, and provide automatic information prompts.
    45UHV-660 Electrolytic Oil Moisture Analyzer also named karl fischer moisture tester, This instrument adopts the Karl Fischer Coulomb titration method, which can reliably measure the moisture in liquid samples. During testing, for substances that are insoluble in reagents and easily contaminate electrodes and reagent reactions, corresponding solid, gas, and liquid samplers can be used for indirect determination. It is a high-efficiency and fully automatic analytical instrument, it has the features:
    1.the instrument uses high resolution color touch LCD display, convenient man-machine conversation, intuitive and easy to operate.
    2.The instrument adopts the high performance ARM processor with large data storage capacity, running fast and stable performance and excellent anti - jamming performance, which has outstanding advantages of high detection speed and high precision.
    3.The instrument has the fault diagnosis function, the end of the test, display and print results.
    4.Instrument has potential is measured dynamic curve indicating function, makes the test more intuitive;
    5.instruments and data storage capacity up to store 500 data records;
    6.instrument has delay measuring function, is very effective in the testing of lower moisture content of specimen; instrument adopts the sliding touch control the stirring speed control; water content calculation formula contains calculated according to the volume and weight of the key parameters of various algorithms;
    7.testing process, such as the need to modify the formula for calculating the related parameters, can be modified in a timely manner and does not affect the measurement of moisture content, moisture content is in accordance with the revised parameters calculated to facilitate the users.
    46UHV-665 Automatic Acid Value Tester is an instrument for testing the Acid value for petroleum products and other liquid oil, especially for transformer oil, it has the features:

    1.Can be use to test transformer oil, turbine oil and also other insulation oil.
    2.Strong Electromagnetic compatibility (EMC) capability. The instrument has interference with power grid fluctuations, environmental electromagnetic interference, and meets the IEC801 standard.
    3. Easy to operate. Using computer window menu operation mode, clear and familiar. Adopting a three cup structure is convenient and fast.
    4.Safe and reliable. The reagent is packaged in a specially designed bottle and does not come into contact with air during use, avoiding the impact of the neutralization solution reacting with carbon dioxide. Users do not need to touch the reagent with their hands, minimizing the harm of organic solvents and chemicals to the human body.
    47UHV-670 Automatic Oil Interfacial Tension tester is an instrument to test the oil or liquid surface interfacial tension value, it has the features:

    It has the features:

    1.Comply with the standard: GB 11985-1989，GB 6541-1986
    2.Full color touch screen display, English & Chinese menu switchable.
    3.It has a high degree of automation,reliable work, good repeatability, and simple operation.
    4.All tests can be completed by simply pressing the menu prompts after turning on the machine
    48UHV-675 automatic kinematic viscosity tester is used for testing the kinematic viscosity value of petroleum products and other liquid oil. It has the features:

    1. adopts advanced fuzzy PID temperature control technology, with precise temperature control and an accuracy of ± 0.02 ℃

    2. Multiple temperature control points specified in national standards such as 20 ℃, 40 ℃, 50 ℃, 80 ℃, and 100 ℃ can be set, and any temperature control can be set (the set temperature should be higher than room temperature), with a temperature resolution of 0.1 ℃. It can be used as a regular constant temperature water bath

    3. Adopting high-definition color touch screen technology, the interface content is rich and clear, and the touch screen response is fast and flexible

    4. Using a large capacity storage chip, it can store up to 2000 measurement results

    5. Using a panel mounted thermal printer, the measurement is completed and the results are automatically and quickly printed

    5.Four glass capillary viscometers can be used simultaneously for kinematic viscosity measurement at the same constant temperature, and each viscometer can be repeated 4 times as a set of test data.
    49UHV-750 Battery internal resistance tester is mainly used for testing the internal resistance of the battery, it has the features:

    1.Adopting two modes: color touch LCD screen and button operation, it can be operated directly or with buttons. It is simple to use and has a clear process, meeting the needs of users with different usage habits.
    2.Data storage methods: internal storage and external storage. Internal storage can store 999 sets of test data, with each set storing 500 battery data; Conduct queries, analyses, etc.
    3.Equipped with connection and retesting functions.
    4.The instrument has the function of analyzing and comparing voltage, internal resistance, and capacity bar charts, which can directly analyze the battery for advantages, advantages, and disadvantages. The instrument has an oscilloscope function: it can display the highest, lowest, average voltage, and voltage ripple of the battery in real-time graphics. (Optional)
    5.The upper computer data management software has powerful functions and a friendly interface, providing functions such as data management, printing, analysis, report statistics, and automatic generation of test reports.
    6.Enhanced overvoltage protection function and self restoring overcurrent protection function make the instrument work safer and more reliable. Powered by large capacity lithium batteries for long-term testing.
    7.Automatic testing mode facilitates user measurement
    50UHV-220 Battery Charge and Discharge Tester is mainly used for testing the charge and discharge value for the battery group. It has the feature:

    1.The PTC ceramic resistor avoids the red hot phenomenon, making the whole discharge process safer;
    2.The internal controller includes two CPUs for the highest safety, stability and accuracy in testing so that a CPU can sound an alarm and shuts down the tester upon failure of the other CPU;
    3.Thanks to the all electric isolation technology, the discharge part can still operate normally in the case of strong electromagnetic interference or strong power interference;
    4.The tester has a 2G memory and supports a U disk up to 32G;
    5.The tester has functions such as check capacity test, discharge suspension, parallel load test and online compensated discharge for diversified  occasions;
    6.The tester can upload discharge data to a U disk via its USB interface and import them to a host PC so that the data management software on the host PC can analyze the discharge and generate corresponding data reports, making data uploading easier;
    7.The tester is subject to intelligent single chip microcomputer ARM control and has a 7″touch screen LCD supporting menu operation and Chinese and English display;
    8.The tester supports automatic protection: When the set discharge duration or the set discharge capacity has reached, or the voltage of battery pack is smaller than the set minimum or the load wiring is abnormal, the tester will automatically stop discharge, sound an alarm and record the shutdown  mode;
    9.The tester supports the setup of discharge stop conditions, including battery pack’s final voltage, discharge capacity and discharge duration to make the discharge test safe;
    10.The tester supports online compensated discharge and discharge tests for batteries in online service with help of external pincerlike current sensors, making discharge tests convenient. (This function is especially applicable to an occasion with only one emergency battery pack.)
    11.The tester support the setup of charge termination conditions, including reaching of the set charge duration or capacity, high total charge voltage, high voltage of single battery, exceeding of the set charge current range, etc.
    12.The tester supports at most ten auto discharge-charge cycles because of its activation function.
    51UHV-720 Automatic Capacitance Bridge Tester is a kind of instrument which can Automatically calculate capacitance value and reactive power equivalence for capacitors group.
    It has the features:

    1. Non disassembly testing: The instrument is equipped with high current and high-precision current clamps, and on-site measurement of capacitors does not require the removal of connecting wires, simplifying the testing process, effectively improving work efficiency, and avoiding damage to power equipment.

    2. Highly intelligent: After the completion of three-phase testing, automatically calculate the capacitance value of each phase, total capacitance value, reactive power and other parameters, which is simple and intuitive, reducing the burden on testing personnel.

    3. Four terminal measurement: Adopting four terminal measurement technology, the measurement is accurate and the test repeatability is good.

    4. Automatic compensation: Current automatic segmented compensation, full range linearization of current, improving instrument measurement accuracy.

    5. Storage function: The instrument can store up to 400 pieces of data and has the function of querying historical data. 6. USB communication: USB communication function, combined with PC software, enables data analysis, storage, printing, and generation of complete test reports, facilitating centralized data management.

    6.Large touch screen: 7-inch large screen with true color touch LCD display, intuitive interface and simple operation. 8. Temperature monitoring: Monitor the ambient temperature to facilitate recording the capacitance values of capacitors at different temperatures.
    52UHV-2571A Ground Resistance Soil Resistivity Tester, also known as Four-Wire Ground Tester, Precision Ground Resistance Tester, etc. It is a kind of instrument which can test the grounding resistance and Soil Resistivity.  it has the feathers:

    1.Suitable for telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on
    2.It is controlled by the microprocessor and can automatically detect the connection status of each interface and the interference voltage and interference frequency of the ground network.
    3.The instrument adopts a large LCD gray white screen backlight display and microprocessor technology, and conducts 2-wire, 3-wire, and 4-wire grounding resistance testing and soil resistivity testing controlled by a microprocessor.
    4. The instrument has the characteristics of accurate, fast, simple, stable and reliable testing.
    5. The instrument uses fast filtering technology to minimize interference. Simultaneously store 500 sets of data.
    53UHV-800 Large grounding grid grounding resistance tester is a specialized instrument for measuring the grounding resistance of the earth grid and the grounding continuity between the grounding point. It has the features:

    1. The measured power frequency equivalence is good. The test current waveform is a sine wave, with a minimum frequency difference of 0.1Hz and a maximum frequency difference of 10Hz. It can be used for measurement at two frequencies of 50Hz or 60Hz.

    2. Strong anti-interference ability. This instrument adopts the frequency difference method for measurement, combined with modern software and hardware filtering technology, making it have high anti-interference performance and stable and reliable test data.

    3. High measurement accuracy. The basic error is only 0.005 Ω, which can be used to measure earth networks with very small grounding impedance.

    4. Powerful functionality. It can measure current piles, voltage piles, grounding network impedance, grounding resistance, grounding conductivity, soil resistivity, etc.

    5. Full touch LCD display screen, super large full graphics operation interface, every process is very clear and clear. Operators can use it without additional professional training. The entire process of testing can be completed by lightly touching.

    6. Internally equipped with a calendar chip and large capacity memory, the results can be saved at any time. You can view historical records at any time and print them out. Both the current time and storage time can be displayed and printed.

    7. Scientific and advanced data management: Instrument data can be exported through a USB flash drive, and can be viewed and managed on any PC through dedicated software. Ability to generate reports and test reports

    8. Safe and reliable. The instrument has functions such as grounding protection, current and voltage limiting protection, and sound and light alarm to ensure the safety of testing personnel and equipment.

    9. Equipped with vector testing function, capable of measuring ground grid impedance and ground grid pure resistance. Can measure impedance angle.

    10. Low wiring labor and no need for high current wires.

    11. Integrated model with standard resistor and constant current source, convenient for on-site testing and reducing on-site wiring.

    12. The instrument is easy to operate, and the measurement process is controlled by a microprocessor. As long as a suitable measurement method is selected, data measurement can be automatically completed under the control of the microprocessor.When users need high current testing (such as 30A), this instrument can be achieved by using an external power supply
    54GM-5kV Insulation Resistance Tester The instrument is designed for HV substations and power plants to test the characteristic of large HV transformer, electric machines and appliances, remote power cable or buried cable and other electrical insulation resistance in strong interference environment. It also can be widely used for testing characteristics of insulation resistance in other area. It has the features:
    1. With strong anti-electric field interference ability up to 2mA (50Hz), it is suitable for 500kV substation without dismantling wire to test insulation resistance of 500kV large-scale transformer.
    2. The short-circuit current of test power> 5mA, maximum up to 15mA. Be suitable for testing high capacity and high inductance.
    3. Wide resistance range from 0.5MΩ ~ 200000MΩ. With high-resolution, having accurate readings.
    4. Wide voltage range: 0.25kV, 0.5kV, 1kV, 2.5kV, 5kV, 10kV, 15 kV, you can smoothly adjust voltage from 0V to the desired value.
    5. With timekeeping function, remind users to record, and analyze absorptance and polarization index of measured target.


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