Specifications

1. Brief Introduction: 

The metal zinc oxide arrester is a high-tech product in the mid 1990s in the world. Its main component, metal zinc oxide (MO) resistors have extremely excellent non-linear voltage-current or U-I characteristic. Therefore, compared with traditional SiC arrester, it has been largely improved in the performance of steep wave, lightning wave and operation wave.

In detail, MO resistors have good characteristics, such as good steep wave response, no delayed steep wave voltage, low operation residual voltage and no discharge dispersibility. It overcomes the shortcomings of SiC arresters: high discharge voltage under steep wave resulted from delayed steep wave discharge, high discharge voltage under operation wave resulted from operation wave discharge dispersibility.

ZnO arresters make the protective margin rise to a great extent. Besides, at the insulation coordination, it makes the protective margin of steep wave, lightning wave and operation wave identical so that the best protection can be offered to the electric equipments and the protective reliability is improved. At the same time, ZnO arresters are able to absorb lightning overvoltage, operation overvoltage and power frequency transient overvoltage.

2        Characteristic

1)      Small dimension, light weight, impact resistance

2)      Flexible installation, especially suited for switch cabinet

3)      Large creepage distance, good hydrophobicity, strong anti-pollution performance, stable function, less operating maintenance

4)      Unique ZnO varistor, high capacity, low discharge

5)      The actual DC reference voltage, square wave flowing capacity and big current withstand capability is much bigger than national standards.

3        Normal service conditions

l  The ambient air temperatures is between +40°C and -40°C.

l  The altitude above sea level does not exceed 2000m

l  AC system frequency is 50Hz or 60Hz.

l  Industrial frequency voltage on MOA for a long time does not exceed its continuous operation voltage.

l  Maximum wind speed does not exceed 35m/s

           The earthquake intensity does not exceed 7 degrees.Designation of type letters 

4        Technical parameters

5              More Photos

6         Packing Details: