Product Overview: GW8/13 Series Neutral Point Disconnect Switch
GW8, GW13 series neutral point disconnect switch is an outdoor device of altermating 50Hz which is used in separating and combining neutral points under no load conditions.
GW13 type can use CJ2 type motor-driven operation mechanism or CS17G/CS14G type manual operation mechanism to operate; GW 8 type can use CJ2 type motor-driven operation mechanism or CS14G type manual operation mechanism to operate.
GW8/GW13 series neutral point switch is composed of a single pole and operation mechanism. The single pole includes foundation, support insulator,conductive am and contact, etc. The operation mechanism realizes switching on/off disconnect switch through connecting rod driving conductive arm.
Specifications and Parameters:
| ltem | Unit | Parameters | ||||||
| Product model | GW8 | GW13 | ||||||
| Rated voltage | kV | 40.5 | 72.5 | 126 | 40.5 | 72.5 | 126 | |
| 1 min power frequency wihstand vollage | kV | 85 | 140 | 230 | 85 | 160 | 230 | |
| Rated lightning surge withstand voltage | kV | 185 | 325 | 550 | 185 | 350 | 550 | |
| Rated current | A | 630 | 630,1250,1600 | |||||
| Rated shorttime withstand current | kA/S | 25/4 | 40/4 | |||||
| Rated peak withstand current | kA | 63 | 100 | |||||
| Mechanical load of rated terminal (level) | N | 750 | 750 | 1000 | 750 | 1000 | 1250 | |
| Electromotor operation mechanism | Model | CJ2 | CJ2 | |||||
| Motor voltage | V | AC380,DC220,DC110 | ||||||
| Control voltage | V | AC220,AC380,DC220,DC110 | ||||||
| Operating time | S | 7±1 | ||||||
| Output corner | 180⁰ | |||||||
| Manual operationmechanism | Model | CS14G | ||||||
| Control voltage | V | AC220,DC220,DC110 | ||||||
Product Features:
The conductive arm is made of rectangular aluminium alloy, which has high strength, light weight, large heat dissipation area and good anti-corrosion function.
self-reliance contact finger is made of special copper alloy, The self-owned elastic clamping contact will prevent the vicious circle of contact clamp force reducing, contact resistance increasing and contact heating caused by spring corrosion and heat annealing. The contact finger and the contact foundation is fixed and connected with bolts to prevent the contact point from oil and dust and stabilize the contact resistance.The contact is bended by copper plate, which has short friction distance and small operation force with the contact finger, This conductive structure has been a national utility model patent.
The rotation part is designed according to the requirements of maintenance-free. The rotation foundation is designed as the sealed structure, The stream, dust and hazardous gases cannot enter, The bearings are working under good environment. No.2 low temperature lubricating grease is used to prevent the bearings from corrosion and the lubricating grease from loss and dry, Cooperation structure of stainless steel dowel and oi-free self.lubricating bearing are adopted in each rotation friction parts. The steel work adopts hot galvanizing technique to guarantee the disconnect switch flexible, reliable and maintenance-free.
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