HCTT-200kV/0.2A Charging Transformer

Mode: HCTT-200kV/0.2A
Rated capacitance:40kVA
Rated voltage: Exciting winding voltage: 400V       HV voltage: 200kV
Rated current: Exciting winding current: 100A        HV current: 0.2A
Rated frequency: 50Hz
No-load current: ≤10%
Waveform deviation: ≤5%
Measuring winding voltage ratio: 1000/1
Over-current capability: 125% of rated current, 5 min, no thermal damage and
winding distortion to test transformer’s winding.
Over-voltage capability: 110% UH, 1 min, no damage to test transformer’s insulation.
Insulation level:LV winding to ground 3kV/1min ; HV winding to ground 3kV/1min
Dielectric loss<0.4%
Running time: 100%UH,100%IH  1hour ; 80%UH.80%IH   cont. running. 
Temperature raise of test transformer winding≤65
Temperature raise of oil surface≤55K

 
Principle Diagram

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