CDY series mainly has four types of structure, they are S, voltage from 200kV-500kV, L, voltage from 500kV-1600kV, E, voltage from 600kV-2100kV, H, voltage from 800kV to 4800kV. Energy from 10kJ-720kJ.
Impulse voltage generator can be used to generate impulse voltage simulating lightning strokes and switching surges, it also can be used to generate chopping wave, oscillating wave, steeping wave and 4/10us, 8/20us, 10/350us impulse current wave, if property add some extra equipments.
All structures covered include testing to IEC, ANSI/IEEE as well as other national standards.
The basic system can be upgraded in various ways for special tests and or greater ease of operation. A number of additional circuits and components allow optimising the impulse test system for tests on:
◆ Shunt reactors
◆ Power transformers
◆ Distribution transformer
◆ Instrument transformers
◆ Cables (type tests)
◆ Arresters (impulse current tests)
◆ GIS and air-insulated breakers