HET 200KVA/10kV,5kV,2.5kV Exciter Transformer

Mode: HET 200KVA/10kV,5kV,2.5kV
Single phase
Cooling: ONAN
Rated frequency: 50Hz
Rated capacity: 200KVA
Rated input voltage: 2*0.4kV
Rated output voltage: 2.5, 5, 10kV
Rated input current: 2*250A
Rated output current: 20A Tap of adjustable reactor can switch electrically
High voltage winding contains four sets of output voltage. Except that 10KV lotus-style set wires outside the fuel tank, the other three sets finish voltage output by electrical switching through a rotating synchronal electric motor.
Structure requirement: oil immersed shell type;silicon steel plate is DQ130-30 high quality cooling rolling silicon steel plate, Bm value very low; Transformer has double coils, cooper lead wire, Low voltage winding and HV winding, adopt electrostatic shielding between two windings which has the function of isolation filter; equips measuring coil, used to measure HV side voltage; there are oil expansion tank and moister absorber on transformer; Oil temperature thermograph and oil level indicator are set on oil expansion tank; Transformer’s spare part and component, e.g. bushing, valve and oil conservator’s structure and layout will not affect the transportation. There are also enough safety distance between transformer HV and LV winding, will not cause partial discharge and corona when testing.

Principle Diagram: