Wuhan Goldhome Hipot Electrical Co., Ltd. is one of the leading manufacturers and suppliers of hv ac resonant test system for transformers in China. With abundant experience, our factory offer high quality customized products made in China with competitive price. Welcome to contact us for quotation.
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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