GW4 series Outdoor High  Voltage disconnectors are 3 phase AC 50Hz High Voltage switchgears. They are  used in no-load condition to switch off the electric circuit and isolate electrical equipment, such as high voltage bus, Circuit Breaker etc, and high voltage line up to 252kV power system. The disconnecting switch can be divided  into: No grounding, Single grounding and Double Grounding, and mechanical  interlock is set between the main blade and Earthing Switch.

This product is double pole structure,  mainly consisting of frame, porcelains and conductive parts. Two porcelain  poles of each phase are mounted respectively on bearing holders of both ends of  the frame, and connected by cross links for horizontal rotation. Each of the conductive  blade is divided into two parts fixed on the two supporting porcelains, and the  contact part is right in the middle. It has pollution- proof type and plateau  type.

Environment condition

Ambient temperature: max +40°C min -35°C

Altitude: ≤3000m

Wind pressure: ≤700Pa (equals to wind speed 34m/s)

Air contamination degree: IV degree

Earthquake intensity: ≤8 degree

No corrosive or flammable gas

Technical Data

Outline & Mounting Dimensions