Porcelain GIS Switchgear Bushing

Porcelain GIS Switchgear Bushing

Porcelain GIS Switchgear Bushing has two kinds process: RIP and RIF’s dry type. They are suitable for GIS transformer substation. It adopts the condenser voltage-sharing structure. The outdoor part of the bushing is free from SF6 gas, without the risk of air leakage, so there is no need for the...

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Product Details

Porcelain GIS Switchgear Bushing has two kinds process: RIP and RIF’s dry type. They are suitable for GIS transformer substation. It adopts the condenser voltage-sharing structure. The outdoor part of the bushing is free from SF6 gas, without the risk of air leakage, so there is no need for the inspection and maintenance during operation, Due to no insulation failure caused by temperature changes, It especially apply to the low temperature environment, and the bushing’s outstanding mechanical property can meet the high shock-resistance in service.

Product style: ERGL/CETA-

Rated voltage: 72.5~550kV

Rated current: 630~6000A



Dry type Porcelain GIS lead-out bushing adopts the porcelain meets the IEC 62155. And our bushing also meets the IEC 60137 Standard. Bushing is Dry type, without Oil, Epoxy resin impregnated fiberglass insulation, free Maintained. 9 levels anti-seismic.



Technical standards

IEC 60137 Ed.6.0

IEC 60137 Ed.6.0

IEC 60137 Ed.6.0

IEC 60137 Ed.6.0

IEC 60137 Ed.6.0

Rated voltage

72.5kV

126kV

252kV

363kV

550kV

Rated current

630-4000A

630-4000A

630-4000A

630-3150A

630-1600A

1min power frequency dry(wet) voltage withstand

155kV

255kV

505kV

595kV

740kV

Full-wave impulse withstand voltage of lighting

325kV

550kV

1050kV

1175kV

1800kV

Under 1.05 times of maximum phase voltage tan δ


≤0.005

≤0.005

≤0.005

≤0.005

Partial discharge under the rated voltage


≤10pC

≤10pC

≤10pC

≤10pC

Bending resistant test load

1000--5000N

1000--5000N

1000--5000N

1000--5000N

1000--5000N

The minimum nominal creepage distance


31mm/kV

31mm/kV

31mm/kV

31mm/kV



Porcelain dry type GIS Switchgear Bushing advantages:

1.Own type test report

2.IEC 60137, IEEE, and other international standard

3.14 production lines, production capability: 2000 pieces/ month

4.Customize bushing according to your requirement

5.Short delivery time:0-120 days

6.Trade term: FOB , CIF 

7.Payment term: T/T,L/C

8.Min order quantity:1 piece

9.Package: Non-fumigation wooden case 


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