Outdoor AC High Voltage Disconnect Switch

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Open Frame
• Structure: ACB
• Model NO.: 25-70
• Poles Number: 3
• Type: Circuit Breaker
• Function: Circuit-Breaker Failure Protection
• Certification: ISO9001-2000
• Phase: Three
• Outdoor Installat: Outdoor Expulsion Drop-out Type
• Transport Package: Carton
• Specification: 111
• Trademark: HAIVOL
• Origin: China
• HS Code: 3917310000
• Production Capacity: 2000PCS

Product Description

 In electrical engineering, a disconnector, disconnect switch or isolator switch is used to ensure that an electrical circuit is completely de-energized for service or maintenance. They are only used for breaking the circuit and are often found in electrical distribution and substation, where machinery must have its source of driving power removed for adjustment or repair. Disconnectors can be manual or motor operated and may be paired with an earthing switch to ground the portion that has been isolated from the system for ensuring the safety of equipment and the personnel working on it.High-voltage isolation switches are used in electrical substations to allow isolation of apparatus such as circuit breakers, transformers, and transmission lines, for maintenance. The disconnector is usually not intended for normal control of the circuit, but only for safety isolation. Unlike load switches and circuit breakers, disconnectors lack a mechanism for suppression of electric arcs, which occurs when conductors carrying high currents are electrically interrupted. Thus, they are off-load devices, with very low breaking capacity, intended to be opened only after the current has been interrupted by some other control device.
Summary
GW1-12(36)/630-20(25) outdoor AC high voltage disconnect switch (disconnect switch for short) is used to open and close circuit with voltage but no-load 50/60Hz, 12(36)kV power system, The anti-pollution type can be used in the serious pollution area. Three pole linkage, good synchronous performance. 
Ambient Condition
Altitude: ≤3000m;
Ambient temperature: -30ºC ~+40ºC;
Wind speed: ≤35m/s;
Air pollution: IV;
Earthquake intensity: ≤8 degree;
Ice thickness: ≤10mm.

Outdoor AC high voltage fused type disconnect switch is used in electric power System with rated frequency 50/60Hz, rated voltage 11(33)kv. Its main for making or breaking circuit under line supplying voltage in outdoor high voltage distribution System equipments. Thereof anti-pollution type disconnect switch especial used in serious polluted area.