Description
Technical Parameters
Product Introduction&Working principle
The HMCXZ-54kVA/54kV is designed for AC withstand voltage testing of power system equipment such as 10kV and 35kV cables, transformers, and insulators. It employs series resonance technology and consists of a frequency-converted power supply, an excitation transformer, a reactor, and a capacitive voltage divider.
Working Principle:
- By inducing resonance between the resonant reactor and the capacitance of the test specimen, high voltage and high current are generated.
- The power supply need only provide the active power portion of the system (approximately 1/Q of the test capacitance), significantly reducing the required power supply capacity.
- Under resonant conditions, the output voltage waveform is sinusoidal, thereby avoiding harmonic interference.
Technical Parameters
- Rated Capacity / Maximum Output Voltage 54 kVA/54 kV
- Output Voltage Waveform Distortion <1.0%
- Permissible Continuous Operating Time 30 minutes of continuous operation under rated conditions; 60 minutes of continuous operation for cable withstand voltage tests
- Unit Power Factor Q>50
- Cable Test Full-Load Power Factor Q>30 (depends on load characteristics)
- Input Power Single-phase 380V/220V
- Frequency Adjustment Range 30Hz–300Hz
- System Measurement Accuracy 1.5%
- Standard Protection Functions Overvoltage protection, overcurrent protection, zero-position start interlock, system detuning (flashing) protection.
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