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Rated input power supply: 380V±10% (three-phase); 50Hz
Rated output power: 450kW
Rated output capacity: 450kVA
Rated output voltage: Single phase 0~350V
Output phase: single phase
Adjustable frequency range: 20Hz~300Hz
Output frequency resolution: 0.01Hz
Output frequency instability: ≤0.05%
Output voltage waveform: Sine wave; waveform distortion rate ≤ 1.0%
The amount of partial discharge: ≤10pC
System working hours: 90min
Insulation level: 1.2 times the rated voltage withstand voltage 1min
Noise level: ≤85dB
Quality factor: Q＞100（f=30Hz）
AC power frequency converter: 450kW (push-pull linear amplification)
Product composition
NO. | Name | Specification | Quantity |
1 | No partial discharge AC power frequency converter and control box | RDXB(WJ)-450kW | 1 unit |
2 | No partial discharge excitation transformer | RDB(WJ)－450kV/2*±10/35 Low voltage：2×300/350V/400V | 1 unit |
3 | No partial discharge compensation reactor | RDBK(WJ)-35kV（6H/8A，3H/12A、25kV/1H/20A）90min | 4 units |
4 | No partial discharge capacitive voltage divider and coupling capacitor | FRC(WJ)- 100kV/300pF | 1 unit |
5 | Partial discharge comprehensive analyzer | RDPDD-104H | 1 unit |
Scope of application and characteristics of the device
1. Suitable for the partial discharge and induction withstand voltage test of power transformer of 400kV/350MVA and below;
2. AC power frequency converter adopts a linear amplification circuit; sine wave output with small waveform distortion.
3. Automatic and steady voltage adjustment.
4. Overvoltage, overcurrent and other protection functions make the device safe and reliable.
5. Optical fiber is used to transmit high voltage signal, which completely isolates the high-voltage and low-voltage circuits.
6. With automatic and manual control modes.
7. Synchronized voltage, current and frequency display.
8. It has the function of resonant withstand voltage test.
9. With automatic resonant frequency search function, automatic sweeping of multiple frequency segments can be set.
