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Switchgear Bushings

Trench and HSP offer customized bushings with optimum voltage distribution for gas-insulated and air-insulated switchgear, even when there are fast voltage changes.

You can rely on the quality of bushings that have been specifically developed for connection to gas-insulated switchgear (GIS) and Air-insulated switchgear (AIS).

800

Up to kV

GIS bushings

for clean-air technology.

AIS applications

Oil-free switchgear bushings with solid active part made of resin-impregnated paper. The products have a condenser control and dry filling. The air side housing is made of either porcelain (EW) or silicone composite insulators (SEW) – on both sides or one side. When required, an active part without a housing is available for indoor operation. The bushings are designed for rated voltages of 52 to 800 kV and rated currents up to 4000 A.

GIS applications

Oil-free switchgear bushings with solid active part made of resin-impregnated paper. The bushings have a condenser control and dry filling. The air side housing of the EKGFt is made of porcelain, while the air side housing of the SEKGFt is made of a silicone composite material. We design each adapter flange individually based on customer requirements. The bushing is designed for rated voltages of 73 to 550 kV and rated currents up to 4000 A.

The Trench & HSP group offers solutions for connecting gas-insulated switchgear (GIS) and Air-insulated switchgear (AIS).

Type VSH/VRH/VFH

For natural cooling, controlled gas cooling or liquid cooling.

Trench RIG Technology: Oil-free generator bushing. The active part consists of a solid core, made if fiberglass reinforced expoxy resin, impregnated under pressure
Available with porcelain insulator on the airside

The bushings are suitable for rated voltages of 12 kV to 36 kV and rated currents up to 50 kA.

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