Overview
The metal zinc oxide arrester is a scientific and technological product in the 1990s in the world. It uses zinc oxide resistors with excellent nonlinear volt-ampere characteristics, so the protection characteristics of the arrester under steep slopes, lightning waves, and operating waves are greatly improved compared with traditional silicon carbide arresters. In particular, the zinc oxide resistor sheet has the advantages of good steep slope response characteristics, no delay to the steep slope voltage, low operating residual voltage, and no discharge electric dispersion.
Therefore, it overcomes the inherent shortcomings of silicon carbide arresters, such as high discharge voltage on steep slopes caused by the delay of steep slope discharge, and high operating wave discharge voltage caused by large operating wave discharge dispersion, so that the protection margin under steep slopes and operating waves is greatly improved. , and in terms of insulation coordination, the protection margins of steep slopes, lightning waves, and operating waves can be made close to the same, so as to provide the best protection for power equipment, thereby improving the reliability of protection. Zinc oxide arresters also have the ability to absorb lightning overvoltage, operating overvoltage and power frequency transient overvoltage.
The composite jacket metal zinc oxide arrester is a scientific and technological product in the 1990s in the world. It adopts integral silicone rubber molding, which has good sealing performance and excellent explosion-proof performance, and can be cleaned without cleaning, and can reduce the occurrence of wet flash in foggy days. Shizizai’s rain new product.
Features
1. Small size, light weight, collision resistance, no damage to transportation, flexible installation, suitable for switch cabinets
2. Special structure, integral molding, no air gap, good sealing performance, moisture-proof and explosion-proof
3. Large creepage distance, good water repellency, strong anti-fouling ability, stable performance, and reduced operation and maintenance
4. Zinc oxide resistor, unique formula, small leakage current, slow aging speed, long service life
5. The actual DC reference voltage, square wave current capacity and high current tolerance are higher than the national standard
Power frequency: 48Hz~60Hz
Conditions Of Use
- Ambient temperature: -40°C~+40°C
-Maximum wind speed: no more than 35m/s
-Altitude: up to 2000 meters
- Earthquake intensity: no more than 8 degrees
- Ice thickness: not more than 10 meters.
- The long-term applied voltage does not exceed the maximum continuous working voltage.
