Very Low Frequency (VLF) Cable Tester

• Model :HMCOP-50kV (''50kV Ultra-Low-Frequency High-Voltage Generator")
• Rated Output Voltage 50 kV (peak), single-unit configuration (dedicated for ≤50 kV)
• Output Frequency Three selectable settings: 0.1 Hz, 0.05 Hz, 0.02 Hz
• Load Capacity (Critical) 0.1 Hz: max. 1.1 µF; 0.05 Hz: max. 2.2 µF; 0.02 Hz: max. 5.5 µF
• Measurement Accuracy Overall accuracy: ±(3% of full scale + 0.5 kV); Voltage peak error: ≤3%
• Waveform Specifications Voltage waveform distortion: ≤5%; Output is a standard sine wave with constant amplitude

Protection Functions

① Overvoltage protection: Response time < 20 ms; automatic shutdown upon exceeding limits;

② Overcurrent protection: Dual high- and low-voltage protection; shutdown within <20 ms for overcurrent on either the low- or high-voltage side;

③ Power supply overcurrent and oil tank overheating protection

• Control and Output High- and low-voltage closed-loop negative feedback control, no capacitive rise effect; built-in high-voltage output protection resistor, no external connection required
• Display and Printing Large LCD screen displaying real-time output voltage, current, and waveform; built-in printer automatically generates test reports
• Power Input: AC 220V ±5%, 50Hz; power supply fuses supplied by Wuhan Guodian Huamei
• Environmental Adaptability: Operating temperature -10°C to +40°C; relative humidity ≤85% RH (non-condensing); supports indoor/outdoor use
  • Structure and Weight: Single-unit configuration (no need for series connection); controller approx. 4 kg, voltage booster approx. 25 kg.