一、Outline

Gw4-126gw (D) type outdoor high voltage isolation switch double column three-phase ac 50HZ outdoor high voltage switch equipment, used for voltage 110KV power system, when there is voltage and no load, as well as for the maintenance of high voltage bus, circuit breaker and other electrical equipment and live high voltage lines electrical isolation.

Gw4-12, 24, 35, 40.5, 72.5, 126 series outdoor ac high-voltage isolation switch (hereinafter referred to as the isolation switch). It is suitable for power system with frequency of 50Hz and rated voltage of 11, 24, 35, 40.5, 72.5 and 126kv. It can be used as voltage no-load time division circuit. Among them, the anti-pollution isolation switch can meet the requirements of users in heavy pollution areas, and can effectively solve the problem of pollution flashover in the operation of the isolation switch. GW4 series and CJ5, CJ6, CJ2 series electric operating mechanism combination, especially suitable for power system and electrified railway field for long-distance separation and combination.

GW4-35, 40.5, 72.5, 12, 24, 126 type isolating switch and earth switch attached, each with independent operation mechanism, to ensure that the disconnector and earthing switch between operating sequence is correct, this product is the interlocking device is equipped with institutions, 30-110 kv for Ⅰ and Ⅱ grounding switch points, 15, 220 kv for Ⅱ, Ⅱ the dynamic thermal stability of the grounding switch is the same as the isolating switch.

Ii. The product has the following specifications:

1. According to whether there is grounding switch, it is divided into: ungrounded, single grounding and double grounding;

2. The grounding switches are classified into types I, II and III according to the short-circuit current capacity they bear;

3. According to the use area, it can be divided into: common type, anti-pollution type, anti-pollution type and plateau type;

Iii. Product features：

Gw4-110 (gw4-126) outdoor isolation switch this series of products meet the requirements of national standards and IEC standards, with good seismic resistance and can meet the requirements of seismic intensity of 9 degrees.

The gw4-126iidw /3150A isolation switches produced by our factory are all in accordance with the following requirements:

3.1 perfect coupling without welding type;

3.2 grade iii anti-pollution, creepage distance ≥3150m;

3.3 horizontal connecting rod with interphase hot-dip galvanized, pole spacing 2m;

3.4 hot dip galvanized parts;

3.5 the conductive part of the copper tube is of soft connection type (the conductive circuit is of all-copper structure);

3.6 the middle contact of the conductive part is self-supporting contact finger, and the spring has no current passing through;

3.7 the rotating part is equipped with self-lubricating sleeve.

3.8 with CSII or CS17 manual mechanism. CS17 is used for isolating switches with grounded devices. (electric mechanism can be provided as required) from the above structure introduction, it is not difficult to see that the isolation switch is reasonable in structure and flexible in operation; It can be unipolar or tripolar, easy to install. Wide contact distance, safe and reliable insulation. Also according to the needs of users, ungrounded or equipped with unilateral grounding or double grounding.