Product Details

HDF Ultra-Low Frequency AC High Voltage Test Device is the core product independently developed by our company, which overcomes many shortcomings of the first-generation mechanical products, and its cost-performance ratio is far higher than similar imported products. It is especially suitable for withstand voltage tests on electrical equipment with large insulation equivalent capacitance (such as power cables, power capacitors, large and medium-sized generators and motors, etc.), and meets the requirements of the newly promulgated national electric power industry standard in 2004, "General Technical Conditions for Ultra-Low Frequency High Voltage Generators DL/T849.4-2004".

◆ Advanced technology: adopts digital frequency conversion technology, microcomputer control, and the test process of boosting,降压, measurement, protection, etc. is fully automated;

  ◆ Convenient operation: simple wiring, foolproof operation;

  ◆ Comprehensive protection: multiple protections (overvoltage protection, overcurrent protection on both high and low voltage sides), fast action (action time ≤20ms), safe and reliable instrument;

  ◆ Safe and reliable: the controller and high-voltage generator are connected at low voltage, with photoelectric control, safe and reliable use;

  ◆ Adopts high and low voltage closed-loop negative feedback control circuit, output has no capacitive rise effect;

  ◆ Complete configuration: liquid crystal Chinese display, automatic storage, automatic printing;

  ◆ Large test range: 0.1Hz, 0.05Hz and 0.02Hz multi-frequency selection, large test range;

  ◆ Small size and light weight: very conducive to outdoor operations;