High Voltage Engeneering

AC test systems consist of modular transformer units that can be cascaded up to three stages to get higher voltages ranging up to 1200 kV. Our AC test systems can be provided with low or high power ratings.

Small AC test systems with low power are mainly suitable for performing dielectric tests, whereas large systems with high power can be used to carry out additional tests such as high voltage withstand tests.

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Impulse test systems are based on the Marx generator. They provide the standard lightning (1.2 µs / 50 µs) and switching (250 µs / 2500 µs) impulses to test various test objects such as transformers, bushings, cables, insulators, switchgears, and many more from 10 kV upto 2.4 MV other specifications upon request.

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The modular test system is based on portable and light elements which can constitute suitable circuits to provide AC, DC, and impulse voltages. For example a DC test system is based on an AC voltage transformer which charges HV capacitors with a DC voltage through HV diodes and resistors. These systems provide high DC voltages to test HVDC facilities, long AC cables, capacitors and so on

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AC resonant test systems are especially valuable in any application where the load is largely capacitive with low loss such as HV cables, GIS, and generator windings. They are built for indoor applications.

Orders are accepted for any voltage and output power as requested.

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The measurement of the system is based on analysis of the electrical pulses induced partial discharge method according to IEC Std 60270-2000

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