ZGW1-1.5 Special isolation switch for subway overhead contact system

ZGW1-1.5D is an indoor and outdoor overhead contact line DC isolation switch, which is suitable for urban rail transit (subway) traction power supply system with rated voltage of 1.5kV DC.

Product use and characteristics

ZGW1-1.5D is an indoor and outdoor overhead contact line DC isolation switch, which is suitable for urban rail transit (subway) traction power supply system with rated voltage of 1.5kV DC. It is used to disconnect or switch on the circuit without load in order to convert the line and change the mode of operation. And the maintenance of lines and circuit breakers and other high-voltage electrical equipment to implement safe electrical isolation.

This product is a double column vertical breaking structure. The isolation switch is composed of a base, two pillar insulators, an operating insulator, a leading electrical part, a ground cutter part and an operating mechanism. The isolation switch is equipped with an electric mechanism or a manual mechanism, and the operation pull rod is vertically drawn.

Product parameter

Serial number	Project	Argument
1	Rated voltage (kV)	DC1.5
2	Rated current (A)	1250、4000
3	Rated peak withstand current (kA)	100、125、
4	Rated short-time withstand current (kA)	40、50
5	Rated short circuit duration (s)	4
6	Mechanical life (second)	12000

Next: GW1-27.5(2×27.5) Isolation switch for outdoor railway overhead contact line

Frequently Asked Questions

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