HET 150kVA/6kV,3kV Exciter Transformer

Mode: HET 150kVA/6kV,3kV
Rated capacitance:150kVA
Single phase
Rated frequency:50Hz
Cooling methods: ONAN
Rated voltage:input voltage: 0.6kV
Output voltage 3kV, 6kV
Rated output current: input current 250A, Output current 25A
Shielding methods: Set electrostatic shielding layer between high voltage winding and low voltage winding
Partial discharge level: ≤1pC under rated voltage.
Structure: Iron shell, HV bushing install at the top of Oil tank cover plate, equip wheels, movable by hand. Insulation level: LV winding 3kV/1mn; HV winding 110% rated voltage withstands 60s. 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: