Система испытаний на генерацию импульсного напряжения

Эта система импульсных испытаний используется для проведения стандартных испытаний на полную волну импульсного напряжения грозы и рабочей волны на высоковольтном оборудовании, таких как силовые конденсаторы, зазоры, втулки, силовые трансформаторы и ТТ/ТН.

System Configuration:

1. Charging Device

? Constant current charging device, rated output voltage±100kV, rated output DC current 10-100mA.

? Oil type charging transformer, primary voltage is 220V, secondary voltage is 50kV, rated capacity is 5kVA. No oil leakage of transformer.

? 2DL-200kV/100mA HV rectifying silicon stack(HV diode), reverse voltage?200kV, average current ?0.1A. HV diode is installed on the charging board.

? Protective resistor of HV diode is made of enameled resistance wire.

? Instability of charging voltage <±1% at 15%-100%rated charging voltage of constant charging device. The adjustable accuracy of charging voltage is 1%.

? DC resistance voltage divider 100kV, 200m?, with HV vitreous glaze resistor. LV resistor is installed at the bottom of divider, while the voltage signal of LV side is lead to measurement system by shield cable.

? Automatic earth switch is open and close by electromagnet. Automatically short-circuit main capacitor and ground by protective resistor when testing stops.

? Charging transformer, HV silicon rectifier, resistance divider, charging current-limiting resistor and main controller are installed in the same movable chassis.

? Change the polarity automatically.

? The device is not only used as charging power supply of impulse voltage generat or, but also as DC voltage generator to generate 100kV DC voltage, which can b e used в испытаниях на постоянном токе для других устройств.