Technical parameters
Rated output voltage | 0~60kV (AC rms) and below |
Output frequency | 50Hz |
Resonant voltage waveform | Pure sine wave, waveform distortion rate ≤1% |
Work system | Full power continuous working time 1min |
Quality factor | 10～40 |
Maximum test capacity | 3000kVA and below |
Working power supply | 380V±15%, power frequency 50Hz |
Series product configuration (scope of application (AC withstand voltage test of generator or motor with outlet voltage 20kV and below, test frequency: 50Hz))
Product model | Control Console | voltage regulator | Reactor (dry) | Excitation change (dry) | Voltage divider | Scope of application |
HTXZ(L)- 200kVA/25kV | 30kW | 30kVA (electric) | 200kVA/25kV adjustable one | 30kVA dry | 30kV | Hydroelectric generator. 0.4～1.0μF。(10kV/40MW) |
HTXZ(L)- 300kVA/50kV | 60kW | 60kVA (electric) | 300kVA/50kV adjustable one | 60kVA oil | 50kV | Thermal generators.0.27～0.33μF。(20kV/300MW) |
HTXZ(L)- 600kVA/50kV | 60kW | 60kVA (electric) | 200kVA/50kV adjustable one 400kVA/50kV adjustable one
| 60kVA oil | 50kV | Thermal generators.0.113～0.45μF。(20kV/600MW) |
HTXZ(L)- 1200kVA/50kV | 120kW | 120kVA (induction) | 200kVA/50kV fixed two 800kVA/50kV adjustable one
| 120kVA oil | 50kV | Hydroelectric generator.0.6～1.8μF。(20kV/250MW) |
HTXZ(L)- 2750kVA/55kV | 300kW | 300kVA (induction) | 750kVA/55kV fixed two 1250kVA/55kV adjustable one | 120kVA oil | 60kV | Hydroelectric generator.1.6～3.3μF。(20kV/770MW) |
Note: The solution can be customized according to the sample object parameters
Reference table of the capacity of hydroelectric generators commonly used in power systems
Hydroelectric generator | Rated capacity (WM) | Rated voltage(kV) | Phase capacitance(μF) |
72.5～85 | 10.5 | 0.694 | |
125～150 | / | 1.8～1.9 | |
300 | 15.75 | 1.7～2.5 | |
400 | 18.0 | 2～2.5 | |
600 | / | 2.1～2.5 |
Nickname: Resonance System; Resonance Test System; AC Resonance Test; Resonance Test
Feature
1. Due to the full compensation of reactive power resonance, the power supply and equipment are only less than 1/10 of the required capacity of the tested product (1/Q10); The same capacity is small in size, light in weight, the output capacity of the device is large and the power capacity required for configuration is small, the price is low, and the operation is convenient and safe.
2. Series resonance is actually a current filter loop, so that the current passing through the test product is basically the fundamental current, and the waveform distortion rate (THD) of the output voltage is extremely small, which is better than all types of existing AC withstand voltage equipment.
3. The short-circuit current after flashover or breakdown of the sample is only less than 1/10 of the test current before the short circuit (1/Q), which can effectively prevent the expansion of damage to the fault point after breakdown.
4. Immediately after flashover, the arc is automatically extinguished, and the process of restoring the resonant state voltage establishment after arc extinguishing is long (seconds) is a steady-state establishment process, and there is no concern about voltage overshoot, nor the danger of recovery overvoltage in the microsecond-level millisecond-level transient process.
