Specifications

ZnO varistor
composite polymer silicon housing
ISO9001
One-piece molding
Ideal replacement of porcelian surge arrester

 

Wenzhou MingNeng brand 33KV Surge Arrester

 

Company Introduction:

Wenzhou MingNeng Electrical Co., ltd is a professional manufacturer of lightning surge arrester with over 10 years' experience. 33kv surge arrester is our hot sales product. Welcome to contact us for more details if you are interested in it.

 

Appliation: 

 Wenzhou MingNeng brand 33KV Surge Arrester  is mainly used to protect distribution transformer, cable connector and electric equipment from being damaged by lightning impulse voltage and operated over-voltage.

 

  

Characteristics: 

 

Wenzhou MingNeng brand 33KV Surge 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.

 

Specifications of Wenzhou MingNeng brand 33KV Surge Arrester:

 

 

1) MOA rated voltage:33KV
2) MCOV:27.5KV
3) 1/10μs steep current impulse:112KV
4) 8/20μs lightning current impulse:99KV
5)30/60μs switching current impulse:86.7KV
6) 2ms rectangular current impulse withstand:150A
7) 4/10μs high current impulse withstand:65KA

 

 

 

Normal service conditions:

 

1.The ambient air temperature is no higher than +40 degree. no lower than -40 degree.

2.The altitude above sea level does not exceed 2000m

3.Power frequency 48Hz~62Hz

4.Maximum wind speed does not exceed 35m/s

5.The earthquake intensity does not exceed 7 degrees

6.The long term working voltage shouldn't exceed its Max MCOV

 

 

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