72.5kV Dry R.I.F./R.I.P. Transformer Bushing(Draw Lead Type)
Parameters
Technical standards | GB/T 4109-2008 IEC 60137 Ed.6.0 | |||||
Rated voltage | 72.5kV | |||||
Rated current | 630-3150A | |||||
1min power frequency dry(wet) voltage withstand | 155(140)kV | |||||
Full-wave impulse withstand voltage of lighting | 325kV | |||||
Under 1.05 times of maximum phase voltage tan δ | ≤0.004 | |||||
Partial discharge under the rated voltage | ≤10pC | |||||
Bending resistant test load | 2500N | |||||
The minimum nominal creepage distance | 31mm/kV |