GW1-12FR/630A-200A Load Isolation Switch

Overview

The GW1 outdoor High-voltage isolation switch (hereinafter referred to as the isolation switch) is suitable for installation on outdoor 12KV lines, for the purpose of closing the line when there is voltage and no load.

This isolation switch fully considers the different needs of users and comes in two forms: with grounding knife and without grounding knife. A switch with a grounding knife and a CS □ type manual mechanism can prevent misoperation such as hanging a grounding wire while live and closing an isolation switch with a grounding wire. Operators do not need to hang another grounding wire. This isolation switch has two types: ordinary type and anti fouling type. Among them, the anti fouling isolation switch can meet the requirements of severely polluted areas and effectively solve the problem of pollution flashover during the operation of the isolation switch. The product meets the requirements of standards such as GB1985 and GB/T11022.

Environmental conditions for use

1. Altitude not exceeding 1000M;

2. The upper limit of ambient temperature is 40 ℃, and the lower limit is -25 ℃;

3. Places without conductive or chemically reactive gases and vapors;

4. Places without fire, explosion hazards, or serious pollution;

5. Places that are not subjected to severe vibrations or impacts (such as near electric picks or dredgers).

Main structural description

The isolation barrier consists of three single switches. Each single isolation switch has the same components, including base, support and operating insulator, front and rear static contacts, switch blade and arc angle, etc. According to user needs, those with grounding knives are equipped with CS □ operating mechanisms, while those without grounding knives are equipped with CS8-5 operating mechanisms. The product has a large opening distance and is easy to operate and reliable.

When there is no circuit breaker on the line or the circuit breaker fails, the isolating switch is allowed to be opened and closed in the following situations:

Separate and combine the charging current on the busbar equipment;

The no-load current of the power transformer is combined and divided (at this time, the capacity of the transformer does not exceed 750KVA).