| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Single-column Disconnector |
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Description
GW4 Type serial High Voltage Outdoor isolator /Disconnector /disconnecting switches comply with requirements in GB1985-2004 High-voltage Allemating Disconnecting Switches and Earthing Switches,IEC62271-102:2002AC Disconnecting Switches and Earthing Switches ,and IEC60694:1996 Common Clause for High voltage Switchgear and Control Devices.
Ambient Condition:
Altitude:≤1000-3000m
Ambient temperature:no more than 40°C and no less than -30°C(no less than -40°C in alpina areas )
Wind speed:≤34m/s
Earthquake intensity:≤8 degree
Air pollution :IV
Ice thickness:≤100mm
the installation location shall be free from flammable ,explosive dangerous articies,chemical corrosion and flerce vibration
The pollution grade of post insulator :o for general type and 2 for pollution resistance type
Definition: GW4 is a horizontal rotary disconnector, mainly composed of a base, a support, an insulator, and a main conductive part. If it is a grounding type, it also includes grounding moving and static contacts, grounding knife gate rods, linkage parts and interlocking plates.
Structure: The switch single pole is a parallel double-column structure, symmetrical on the left and right, driven by a diagonal rod, the three-pole linkage of the main knife gate is driven by a horizontal connecting rod, and the three-pole linkage of the grounding knife gate is driven by a connecting pipe.
Use: Widely used in power systems, mainly used to open or close the circuit when there is no load current or only capacitive current, forming a visible break for inspection and maintenance. Applicable to electrical systems with AC 50Hz and rated voltage of 12kV to 40.5kV.
Application: Usually installed in outdoor places such as substations and transmission and distribution lines, and can withstand severe weather conditions, such as high temperature, low temperature, humidity, and wind and sand.
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