Variable Inductor Resonance Test Set For Transformer

The HMCXZW-400kVA/80kV Partial Discharge-Free Frequency-Modulated Series Resonance Test System, paired with the HM-15 Partial Discharge-Free Variable-Frequency Control Power Supply, is designed for the Canadian market. It enables simultaneous AC withstand voltage testing and partial discharge testing, making it suitable for acceptance and preventive testing of electrical equipment such as medium- and low-voltage power cables, transformers, current and voltage transformers, switches, and insulators.

• Truly Partial Discharge-Free: The entire system (frequency converter, excitation transformer, reactor, voltage divider, and compensation capacitor) has a partial discharge level of ≤10 pC, allowing for simultaneous AC withstand voltage and partial discharge measurements.
• Pure Sine Wave Output: Utilizing linear amplification technology, the waveform distortion rate is ≤1%, ensuring no additional harmonic stress on the test specimen.
• High Q-factor: Due to the pure output waveform, the circuit Q-factor is increased by more than 25% compared to conventional devices, resulting in greater energy efficiency.
• Intelligent control: Large screen displays output voltage, current, frequency, waveform, temperature, and timing; test parameters are configurable; features automatic voltage stabilization and automatic resonance point tracking.
• Comprehensive Protection: Protection against overcurrent, overvoltage, flashover, power loss, detuning, and zero-point startup ensures the safety of both the equipment and test specimens.
• High Adaptability: Single-phase 240V/60Hz input, suitable for regions such as North America; lightweight components (maximum weight per component not specified, but the unit is designed for easy on-site assembly).
• Superior Craftsmanship: Oil-immersed high-voltage components are leak-free; the housing is rust- and corrosion-resistant with clear nameplates; equipped with a dust- and rain-proof cover and lifting points for transportation.