Fast delivery HuazhengHZDP-30KV VLF Hipot Tester 24-hour customer service The HZDP-30kV VLF Hipot Tester is specially designed for medium-voltage equipment and small generators. It supports AC and DC withstand tests, including 0.1Hz ultra-low frequency testing recommended by international standards. The system features a 7-inch touchscreen interface, ARM7 microcontroller, and high-speed AD acquisition, allowing accurate measurement of insulation strength. Ideal for medium-voltage cables, small power capacitors, and compact motors, this tester ensures compliance with national electric power standards and the 2004 L/T849.4-2004 technical requirements for ultra-low frequency high-voltage generators. 4. Voltage positive, negative peak error: <3% 5. Voltage waveform distortion degree: <5% 6. Conditions of use: indoor, outdoor; temperature: -10°C~+40°C; humidity: <85%RH 7. Power supply fuse: See table 3 8. Power Supply: Voltage 220V±5%, 50±5Hz Note: If the portable generator is used for power supply, the generator output voltage and frequency are required to be stable (generally, the power is greater than 3kW, the frequency is 50Hz, and the voltage is 220V±5% integrating voltage rise, drop, measurement, and protection. • Fully automated operation for efficient testing. • User-friendly: simple wiring and intuitive interface, easy to handle. • Comprehensive safety: over-voltage and over-current protection for both high and low voltage sides, rapid response <10ms ensures secure operation. • Reliable: controller connected to low voltage of high-voltage generator via photoelectric isolation for safe use. • Closed-loop negative feedback in high and low voltage prevents capacitive overshoot. • Full configuration: capacitive touch screen, LCD with Chinese display, automatic storage, and printing.