Product Overview:GW23B-126KV 252KV 363KV 420KV Series Disconnector
The GW23B series isolation switch current is an outdoor high-voltage transmission and transformation equipment with a three-phase AC frequency of 50Hz/60Hz. It is used to disconnect or connect high-voltage lines under no-load conditions, in order to convert and change the operation mode of high-voltage lines, and to safely isolate high-voltage electrical appliances such as busbars and circuit breakers for maintenance. It can also open and close small currents of certain values of inductance and capacitance and has the ability to open and close busbar conversion currents.
Specifications and Parameters:
|
Rated voltage (kV) |
126，252，363，420，550 |
|
Rated frequency (Hz) |
50/60 |
|
Rated current (A) |
1250、2000、2500、3150、4000、5000 |
|
Rated peak withstand current (kA) |
125, 160 |
|
Rated short-time withstand current (kA) |
50, 63 |
|
Rated short-circuit duration (s) |
3 |
|
Mechanical lifespan (times) |
10000 |
Product Features:
This product is a double column straight telescopic structure, with plug-in contacts that form a horizontal insulation fracture after opening. It is suitable for use as a line isolation switch in 110kV and 500kV substations. JW10 type grounding switches can be attached on one or both sides. When two sets of GW23B type isolating switches are combined into a common static contact form, it is suitable for 1.5 times the wiring and can save the floor area of the substation. The 363 and 550kV isolation switches and grounding switches are both equipped with SRCJ8 electric motor mechanisms for single pole operation and can achieve three pole electrical linkage. The 126 and 252kV isolation switches are respectively equipped with SRCJ7 and SRCJ3 type motor operating mechanisms for three pole linkage operation, and the grounding switches are respectively equipped with CS11 and SRCS type manual operating mechanisms for three pole linkage operation.
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