AC bushings type GSB

GSB is a dry resin-impregnated transformer bushing for oil-air applications and is available in 245 to 800 kV voltages.

The GSB can be installed at any angle from horizontal to vertical and is equipped with a 2 or 20-kV test tap. The conductor arrangement is of the draw rod or draw lead type.

Our unique draw rod system facilitates easy field installation and removal without lowering the oil level.
The bushing is free from partial discharges and has a very low dissipation factor, which results in a lifetime equal to that of the transformer.
The insulator sheds are made from high-temperature vulcanization (HTV) silicone for unsurpassed erosion resistance.
Excellent performance in seismic active areas.
A comprehensive testing program has been performed in addition to what international standards require.
It is possible to use alternative insulating fluids.

Product scope:

Voltage: 245 - 800 kV
Current: ≤ 2500 A. Higher current ratings on request.
Technology: Resin-impregnated paper (RIP) with silicone or porcelain insulator

Get to know more

Document title	ID
Product information
Technical guide	1ZSC000563-AAC
Technical guide GSB 800	1ZSC000563-ABA
Installation and maintenance guide	1ZSC000563-AAD
Installation and maintenance guide GSB 800	1ZSC000563-ABB
General information
Bushing diagnosis and conditioning	2750 515-142
Resin impregnated paper bushings	2750 515-130
Temperature dependency for C1 and tan d for resin impregnated paper bushings	2750 515-134
Comparison between porcelain and silicone rubber for use as outdoor insulation on high voltage bushings	2750 515-136
Silicone rubber	2750 515-131

Pro/E models
Pro/E models (compressed zip file)

Type designation	Insulator	Lightning impulse (kV)	Rated current (A)	Space for current transformer (m)	Bushing	Link to document
GSB 245/2000/0.3	Brown porcelain	1050	2000	0.3	1ZSC901245-AAA 1ZSC901245-ABA	2751 377-1
	Grey porcelain				1ZSC901245-BAA 1ZSC901245-BBA	2751 377-1
	Composite				1ZSC901245-CAA 1ZSC901245-CBA	2751 377-9
GSB 245/2000/0.6	Brown porcelain	1050	2000	0.6	1ZSC901245-AAB 1ZSC901245-ABB	2751 377-2
	Grey porcelain				1ZSC901245-BAB 1ZSC901245-BBB	2751 377-2
	Composite				1ZSC901245-CAB 1ZSC901245-CBB	2751 377-10
GSB 245/3150/0.3 Cu	Brown porcelain	1050	3150	0.3	1ZSC901245-ACA 1ZSC901245-ADA	2751 377-36
	Grey porcelain				1ZSC901245-BCA 1ZSC901245-BDA	2751 377-36
	Composite				1ZSC901245-CCA 1ZSC901245-CDA	2751 377-29
GSB 245/3150/0.6 Cu	Brown porcelain	1050	3150	0.6	1ZSC901245-ACB 1ZSC901245-ADB	2751 377-37
	Grey porcelain				1ZSC901245-BCB 1ZSC901245-BDB	2751 377-37
	Composite				1ZSC901245-CCB 1ZSC901245-CDB	2751 377-22
GSB 362/1600/0.3	Brown porcelain	1175	1600	0.3	1ZSC901362-AAA 1ZSC901362-ABA	2751 377-3
	Grey porcelain				1ZSC901362-BAA 1ZSC901362-BBA	2751 377-3
	Composite				1ZSC901362-CAA 1ZSC901362-CBA	2751 377-11
GSB 362/1600/0.6	Brown porcelain	1175	1600	0.6	1ZSC901362-AAB 1ZSC901362-ABB	2751 377-4
	Grey porcelain				1ZSC901362-BAB 1ZSC901362-BBB	2751 377-4
	Composite				1ZSC901362-CAB 1ZSC901362-CBB	2751 377-12
GSB 362/3150/0.3 Cu	Brown porcelain	1175	3150	0.3	1ZSC901362-ACA 1ZSC901362-ADA	2751 377-38
	Grey porcelain				1ZSC901362-BCA 1ZSC901362-BDA	2751 377-38
	Composite				1ZSC901362-CCA 1ZSC901362-CDA	2751 377-31
GSB 362/3150/0.6 Cu	Brown porcelain	1175	3150	0.6	1ZSC901362-ACB 1ZSC901362-ADB	2751 377-39
	Grey porcelain				1ZSC901362-BCB 1ZSC901362-BDB	2751 377-39
	Composite				1ZSC901362-CCB 1ZSC901362-CDB	2751 377-32
GSB 420/1600/0.3	Brown porcelain	1550	1600	0.3	1ZSC901420-AAA 1ZSC901420-ABA	2751 377-5
	Grey porcelain				1ZSC901420-BAA 1ZSC901420-BBA	2751 377-5
	Composite				1ZSC901420-CAA 1ZSC901420-CBA	2751 377-13
GSB 420/1600/0.6	Brown porcelain	1550	1600	0.6	1ZSC901420-AAB 1ZSC901420-ABB	2751 377-6
	Grey porcelain				1ZSC901420-BAB 1ZSC901420-BBB	2751 377-6
	Composite				1ZSC901420-CAB 1ZSC901420-CBB	2751 377-14
GSB 420/2500/0.3 Cu	Composite	1550	2500	0.3	1ZSC901420-CCA 1ZSC901420-CDA	2751 377-33
GSB 420/2500/0.6 Cu	Composite	1550	2500	0.6	1ZSC901420-CCB 1ZSC901420-CDB	2751 377-34
GSB 550/1600/0.3	Brown porcelain	1675/1800	1600	0.3	1ZSC901550-AAA 1ZSC901550-ABA 1ZSC901550-DAA 1ZSC901550-DBA	2751 377-7
	Grey porcelain				1ZSC901550-BAA 1ZSC901550-BBA 1ZSC901550-EAA 1ZSC901550-EBA	2751 377-7
	Composite				1ZSC901550-CAA 1ZSC901550-CBA 1ZSC901550-FAA 1ZSC901550-FBA	2751 377-15
GSB 550/1600/0.6	Brown porcelain	1675/1800	1600	0.6	1ZSC901550-AAB 1ZSC901550-ABB 1ZSC901550-DAB 1ZSC901550-DBB	2751 377-8
	Grey porcelain				1ZSC901550-BAB 1ZSC901550-BBB 1ZSC901550-EAB 1ZSC901550-EBB	2751 377-8
	Composite				1ZSC901550-CAB 1ZSC901550-CBB 1ZSC901550-FAB 1ZSC901550-FBB	2751 377-16
GSB 550/2500/0.3 Cu	Composite	1675/1800	2500	0.3	1ZSC901550-CCA 1ZSC901550-CDA	2751 377-35
GSB 550/2500/0.6 Cu	Composite	1675/1800	2500	0.6	1ZSC901550-CCB 1ZSC901550-CDB	2751 377-20

Movie title	ID
Bushings type GSB: Product highlights	1ZSC000717-ACB
Earthquake resilience: The value of experience	1ZSC000717-ACE

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