Professional Comprehensive Building Materials Supplier

搜索
Search
/
/
/
Export Advantageous Product Categories --Surge Arrester

Export Advantageous Product Categories --Surge Arrester

  • Categories:Power Material
  • Author:
  • Origin:
  • Time of issue:2020-07-28 16:50
  • Views:

Summary description:Surge arrester is one of our exported products. Welcome to call us for consultation or negotiation!

Export Advantageous Product Categories --Surge Arrester

Summary description:Surge arrester is one of our exported products. Welcome to call us for consultation or negotiation!

  • Categories:Power Material
  • Author:
  • Origin:
  • Time of issue:2020-07-28 16:50
  • Views:
Information

Surge arrester is used to protect electrical equipment from high transient overvoltage and limit the free running time. It is also a kind of electrical appliance which limits the amplitude of free running current. This term covers any external clearance necessary for the proper function of the appliance during operation and installation, whether or not it is an integral part.

 

Scope of application

 

AC gapless MOA is used to protect the insulation of AC transmission and transformation equipment from lightning overvoltage and switching overvoltage. It is suitable for over-voltage protection of transformer, transmission line, distribution panel, switch cabinet, power metering box, vacuum switch, shunt compensation capacitor, rotating motor and semiconductor devices.

 

Classification

 

There are many kinds of arresters, including metal oxide surge arrester, line type metal oxide surge arrester, gapless line type metal oxide surge arrester, fully insulated composite sheath metal oxide surge arrester, and detachable surge arrester.

 

The main types are tube surge arrester, valve surge arrester and zinc oxide surge arrester. The main working principle of each type of surge arrester is different, but the essence of their work is the same, which is to protect the communication cable and communication equipment from damage.

 

 Tube surge arrester

 

Tube surge arrester is actually a kind of protective gap with high arc extinguishing capacity. It is composed of two series gaps. One gap is in the atmosphere, which is called external gap. Its task is to isolate the working voltage and prevent the gas production pipe from being burned by the power frequency leakage current flowing through the pipe; the other is installed in the gas pipe, called internal gap or arc extinguishing gap, which is the arc extinguishing capacity of tubular surge arrester. It is related to the size of power frequency freewheeling. This is a kind of gap surge arrester, which is mostly used for lightning protection on power supply lines. 

 

Valve surge arrester

 

The valve surge arrester is composed of spark gap and valve sheet resistance, which is made of special silicon carbide. The valve resistance made of silicon carbide can effectively prevent lightning and high voltage and protect the equipment. When there is lightning high voltage, the spark gap is broken down, the resistance value of valve plate resistance decreases, and the lightning current is introduced into the earth, which protects the cable or electrical equipment from the harm of lightning current. Under normal conditions, the spark gap will not be broken down, and the high resistance value of valve plate resistance will not affect the normal communication of communication lines.

 

Zinc oxide surge arrester

 

Zinc oxide surge arrester is a kind of lightning protection equipment with superior protection performance, light weight, pollution resistance and stable performance. It mainly uses the good nonlinear volt ampere characteristic of zinc oxide to make the current flowing through the surge arrester very small (micro ampere or milliampere level) under the normal working voltage; when the over-voltage acts, the resistance drops sharply and the energy of overvoltage is released to achieve the protection effect. The difference between this ones and traditional ones is that it has no discharge gap, and takes advantage of the nonlinear characteristics of ZnO to discharge and cut off the current. 

 

TEL:86+010-88082321

E-MAIL:tina.xu@cbme.cn

Keyword:

CONTACT US

Tel  |  86-010-88082316

Email   |  aliciachn@outlook.com 

 

 

BuildTech Corporation

China Building Materials Building, No. 11

Sanlihe Road, Haidian

Message

Please leave us a message, we will be at your service.

Username used for comment:
Customer message
Description:
Online customer service
Customer service hotline
400-000-000 400-000-000
Service time:
6:00 - 21:30
Customer service group:
在线客服
WhatsApp:
Skype:
WhatsApp:

BuildTech Corporation © All Rights Reserved