■ Product Overview

VS-YDQW series non partial discharge high voltage test system is composed of partial discharge detector, test console, inflatable non partial discharge high voltage test transformer, coupling capacitor, isolation filter and protection resistance. It provides high-voltage pure power supply. Through the non partial discharge protection resistance and coupling capacitor, it takes the signal from the tail end of the coupling capacitor to the input unit (impedance module) of the partial discharge instrument, which is boosted by the partial discharge detector.

■ functional features

▲ little interference.

▲ the system adopts an inflatable (SF6) non partial discharge test transformer. Due to the high insulation and arc extinguishing property of SF6 gas, its corona sound and partial discharge can be controlled in a small range, and it can still remain silent at the rated voltage, which is conducive to identifying the discharge sound of the tested object. Moreover, the single machine is light in weight, 50% lighter than the oil immersed type, small in volume, no oil stain, and high in shape and process accuracy. Applicable to site and laboratory.

▲ the operating voltage is continuously adjustable, and the waveform is free of distortion and distortion.

▲ it has zero position function, voltage upper limit, lower limit, overcurrent and overvoltage breakdown protection function.

▲ the alarm has sound and light prompt.

▲ after the test, depressurize and return to zero.

■ technical parameters

▲ rated capacity: 0-500kva (optional)

▲ input voltage: 380V or 220V ± 10%

▲ output voltage: 0-1000kv (optional)

▲ system partial discharge under rated voltage ≤ 5pc

▲ no load current of transformers of various voltage levels: 4% ~ 9%

▲ impedance voltage: 4% ~ 10%

▲ voltage accuracy: AC 1%

▲ power distortion: ＜ 3%

▲ insulating medium: SF6 gas