SN10-10KV oil circuit breaker accessories: contact finger, sealing ring, moving contact
Contact Info
- Add:Xiangyang Industrial Zone, Liushi Town, Yueqing City, Zip:
- Contact: 李经理
- Tel:15167417505
- Email:864640886@qq.com
Other Products
Regarding the accessories (moving contact, roller shim, contact finger) of the SN10-10kV/630A oil-circuit breaker and the SN10 pillar, based on the currently available public information, the details are organized as follows:
I. Description of Main Accessories
Moving Contact
It is usually made of copper-tungsten alloy, which has excellent arc resistance and electrical conductivity.
Installed at the end of the conductive rod, it moves up and down with the insulating pull rod to achieve circuit breaking and closing.
During the circuit breaking process, the moving contact separates from the static contact, generating an arc which is extinguished by insulating oil.
Roller Shim
It is part of the rolling contact assembly, used to reduce friction between the conductive rod and the lower outlet.
It ensures good contact of the conductive circuit during movement and reduces contact resistance.
Contact Finger (Static Contact Finger)
Located on the static contact seat, it is often inlaid with copper-tungsten alloy, and cooperates with the moving contact to form a current-carrying circuit.
It provides a stable conductive path in the closed state and withstands the impact of short-circuit current.
II. Description of SN10 Pillar
"SN10 pillar" usually refers to a support insulator or a pillar insulator, whose functions include:
Mechanical support: Fixing the oil tank and conductive components to maintain structural stability.
Electrical insulation: Isolating high-voltage conductive parts from the grounded frame to meet the insulation requirements of the 10kV voltage level.
Installation specifications:
The flange surfaces of the support porcelain sleeves should be on the same horizontal plane;
The centerline error of the three-phase pillars shall not exceed 5mm;
The number of shims between the base and the foundation shall not exceed 3, and the total thickness shall not exceed 10mm.
III. Supplementary Information
SN10-10/630A indicates:
SN: Indoor oil-circuit breaker;
10: Design serial number;
10: Rated voltage of 10kV;
630A: Rated current of 630A.
This series of circuit breakers has been mostly replaced by vacuum circuit breakers, with a limited market stock, but some manufacturers still provide accessories.
For accessory procurement, you can contact Yueqing Hengzhao Electric Co., Ltd.
| Industry Category | Electrical Equipment & Supplies/High Voltage Electrical/Other High Voltage Devices |
|---|---|
| Product Category | |
| Brand: | 乐清市恒昭电气有限公司 |
| Spec: | SN10-12KV/630A |
| Stock: | 100 |
| Manufacturer: | 乐清市恒昭电气有限公司 |
| Origin: | 113303 |
