Name: GW5 Series Outdoor High Voltage Disconnector
No.: Y-002
Addtime: 2017-06-23
Views : 8
GW5 Series Outdoor High Voltage Disconnector
General:
GW5 series outdoor high voltage disconnector is a three phase AC switching device for 50 to 60HZ high voltage. It is used for breaking the circuit when there is voltage but without load in the power system with the maximum voltage of 40.5Kv 72.5Kv or 126Kv.
According to the usage, the product is divided into ordinary, anti-dirt and special types. The special type is futher divided into three types, which are mounthed in a side, up-side-down or inclining way, so the mounting is flexible.
The earthed switching part of the product has two ways of earhing, ie. single or double earthing. The earthing switch has a structure of type I or type II and the electric paramters of the type II earthing switch has the same short-circuit withstand ability as the disconnector switch.
The product is provided with a manual or motor operating device and an electromagnetism lock can also be fitted to prevent from wrong operation. The exposed parts are all made of stainless steel or processed with aluminum alloy processing technology or hot-zinc-plating technologt to ensure operation with no corrosion for a long period of time, and further ensure the flexibility and relability of the prduct, satisfy the requirments in the different areas.
Main Technical Parameters:
Model | GW4-40.5 | GW4-72.5 | GW4-126 | |||||
Rated Voltage | kV | 40.5 | 72.5 | 126 | ||||
Rated Current | A | 630 | 1250 | 630 | 1250 | 630 | 1250 | |
4Short Time Withstand Current | kA | 20 | 31.5 | 20 | 31.5 | 20 | 31.5 | |
Rated Peak Withstand Current | kA | 50 | 80 | 50 | 80 | 50 | 80 | |
1min power frequency withstand voltage | kV | To earth 95、Across open contacts 110 | To earth 160、Across open contacts 176 | To earth 185、Across open contacts 210 | ||||
Rated Lightning Impulse Withstand Voltage | kV | To earth 185、Across open contacts 215 | To earth 350、Across open contacts 385 | To earth 450、Across open contacts 520 | ||||
Rated Frequency | Hz | 50 | 50 | 50 | ||||
Rated Mechnical Terminal Load(level of vertical load/level of lateral load/vertical force) | N | 750/400/500 | 750/400/500 | 1000/750/1000 | ||||
Rated Mechnical Insulator Load | Porcelain | kN | bending resistance:4; torsion resistance: 2 | bending resistance:4; torsion resistance: 2 | bending resistance:4; torsion resistance: 2 | |||
Polymer | bending resistance:10; torsion resistance: 5 | bending resistance:6; torsion resistance: 3 | bending resistance:12.5; torsion resistance: 5 | |||||
Insulator Creepage Distance | Porcelain | mm | Grade Ⅲ antifouling: 1020mm | Grade Ⅲ antifouling: 1830mm | Grade Ⅲ antifouling: 3150mm | |||
Polymer | Grade Ⅲ antifouling: 1020mm Grade Ⅳ antifouling: 1256mm | Grade Ⅲ antifouling: 1830mm | Grade Ⅲ antifouling: 3150mm | |||||
Mechanical Life | times | 2000 | 2000 | 2000 | ||||
I type、II type earth switch | 2sshort time withstand current | kA | 8、12.5 | 8、20 | 8、12.5 | 8、20 | 8、12.5 | 8、20 |
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