The Arrester SBB-A-12.7KV-131 is designed based on more than ten years of experience in the operation of overvoltage protectors and is aimed at the characteristics of overvoltage in the current power system. It combines a unique structural connection method and the application of new materials to provide a new overvoltage protection solution.

The use conditions of the Arrester SBB-A-12.7KV-131 are very wide and suitable for a variety of environments:

1. The ambient temperature range is wide, from -40℃ to +40℃;

2. The maximum radiation intensity of sunlight that can be withstood is 1.1kW/m²;

3. The power frequency is between 48Hz and 62Hz;

4. The relative humidity does not exceed 90%;

5. It is suitable for areas with an earthquake intensity of 8 degrees or less;

6. It is suitable for Class IV and below dirty areas;

7. The power frequency voltage applied between the protector terminals for a long time does not exceed its continuous operating voltage;

8. The maximum wind speed that can be withstood does not exceed 35m/s;

9. The ice thickness does not exceed 20mm.

The Arrester SBB-A-12.7KV-131 is assembled by stacking nonlinear metal oxide resistors and sealed in an insulating sleeve. It has no discharge gap, which makes its structure more compact and reliable.

The Arrester SBB-A-12.7KV-131 exhibits a high-resistance insulation state under normal operating voltage, and when it is subjected to an overvoltage shock, it quickly changes to a low-resistance state and discharges the shock current into the ground. This feature effectively suppresses the residual voltage on the power equipment connected in parallel to it below the specified value, thereby ensuring the safety of the insulation of the electrical equipment.

In addition, the Arrester SBB-A-12.7KV-131 also has the following significant features:

- Good steep wave response characteristics, able to respond quickly to overvoltage shocks;

- Strong impact current tolerance, able to withstand large current shocks;

- Low residual pressure, effectively protecting power equipment;

- Reliable action, ensuring accurate action under various conditions;

- No power frequency continuous current, avoiding secondary damage to the power system;

- Strong pollution resistance, adaptable to various environmental conditions;

- Reliable sealing, good explosion-proof performance, ensuring safe use;

- Excellent aging resistance, extending the service life of the product;

- Small size, light weight, easy to transport and install;

- Easy maintenance, reducing operating costs.

Arrester SBB-A-12.7KV-131 has become an indispensable protection device in the power system with its unique design, wide range of use conditions and excellent performance. It can not only effectively limit atmospheric overvoltage and operating overvoltage, but also has the characteristics of fast response, high tolerance and high reliability. As the power system’s requirements for safety and stability continue to increase, the Arrester SBB-A-12.7KV-131 will surely play a greater role in the field of power protection and provide a solid guarantee for the safe and stable operation of the power system.