HomeProductsOutdoor high voltage disconnectorGW9-12 Series Outdoor High Voltage Disconnecting

GW9-12 Series Outdoor High Voltage Disconnecting

GW9-12 series Outdoor high voltage Disconnecting switch, also called Knife switch, is applied to rated voltage 12kV of 3phase AC 50HZ outdoor power system.

Description

Description
GW9-12 series Outdoor high voltage Disconnecting switch, also called Knife switch, is applied to rated voltage 12kV of 3phase AC 50HZ outdoor power system. Under the no load conditions it can switch on and off circuit to ensure when circuit maintenance it has obvious cut-off point.
The isolating switch is the vertical open design of double knife switch. The contact uses the way of crimping of double pull-out piece spring. It assures the stability of switch electrical contact and the reliability of switching.
The switch consists of base, post insulator conducting parts, insurance hook and etc. Each phase has a knife switch, and insulation hook rod can be used to open and close divide-shut brake. The knife switch itself has a self-locking unit. The product conforms to IEC129, IEC694,GB1985-89.

Environment condition
– Ambient temperature: max +40°C min -25°C
– Altitude: ≤1000m
– Wind pressure: ≤700Pa (equals to wind speed 34m/s)
– Air contamination degree: Ⅲ degree
– Earthquake intensity: ≤8 degree
– No corrosive or flammable gas, no frequent violent vibration

Technical Data

1 Rated Voltage (kV) 10 15 24
2 1min power frequency withstand voltage (Effective value) kV To Ground 42 55 65
Between Fracture 48 65 79
3 Lightning Impulse withstand voltage (Peak value) kV To Ground 75 105 125
Between Fracture 85 120 145
4 Mechanical life (Times) 2000
5 Rated Current (A) 200 400 630 1250 400 630
6 Rated short time withstand current (kA/4s) 6.3 12.5 20 31.5 16 20
7 Rated peak withstand current (kA) 16 31.5 50 80 40 50
9 Creepage distance (mm) 300 380

Outline & Mounting Dimensions

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Chenghe Electric Power Technology Group Co., Ltd. is a specialized and modern high-tech enterprise integrating R&D and manufacturing.

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No.381, Jing Qi Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province, China
+86-153 5592 1155
+86-133 5613 1133
kel@chenghedl.com

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