AC/DC Ceramic Wall Bushing

AC/DC Ceramic wall bushing is apply to indoor type AC/DC transformer substation lead through the wall or floor, which is dry-type, oil-free, anti-seismic, anti-explosive and maintenance-free etc. Product type: ECRL Rated voltage: 1kV ~ 1100kV Rated current: 1A ~ 5000A Standard: IEC 60137,IEEE or...

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AC/DC Ceramic wall bushing is apply to indoor type AC/DC transformer substation lead through the wall or floor, which is dry-type, oil-free, anti-seismic, anti-explosive and maintenance-free etc.


Product type: ECRL

Rated voltage: 1kV ~ 1100kV

Rated current: 1A ~ 5000A

Standard: IEC 60137,IEEE or other international standard


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Here attached 72.5 kV, 126 kV and 252 kV main techinical data for reference


Technical standards

IEC 60137 Ed.6.0

IEC 60137 Ed.6.0

IEC 60137 Ed.6.0

Rated voltage

72.5kV

126kV

252kV

Rated current

1-4000A

1-4000A

1-2500A

1min power frequency dry(wet) voltage withstand

140kV

185kV

395kV

Full-wave impulse withstand voltage of lighting

325kV

450kV

950kV

Under 1.05 times of maximum phase voltage tan δ

≤0.005

≤0.005

≤0.005

Partial discharge under the rated voltage

≤10pC

≤10pC

≤10pC

Bending resistant test load

1000--5000N

1000--5000N

1000--5000N

The minimum nominal creepage distance

31mm/kV

31mm/kV

31mm/kV

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