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Origin of surge arrester
Date:2015-11-14 hit count:0
origin
The most primitive of the arrester is horn shaped gap, appeared in the late 19th century, for overhead transmission line, prevent lightning damage the insulation of equipment and causing power outages, it referred to as the "lightning arrester. In 1920s, aluminum surge arrester, oxide film surge arrester and shot arrester. In the 30's, the tube type arrester. Silicon carbide arrester appeared in the 50's.. In the 70's, the metal oxide surge arrester. The modern high voltage lightning arrester is not only used to limit the overvoltage caused by lightning in the power system, but also is used to limit the overvoltage caused by the operation of the system.
brief introduction
Also known as: from the double to release lightning and can release power system operation over voltage energy, protection of electrical equipment from transient overvoltage and truncated continued to flow, causing system short circuit of electrical installations. The lightning arrester is usually connected with the ground between the electrified wire and the ground, and is connected with the protected equipment in parallel. When the voltage reaches the action specified voltage, lightning arrester action immediately, through the charge, limit voltage, insulation protection device; normal value of voltage, lightning arrester and quickly restored the status quo ante. In order to ensure the normal power supply system.
principle
Lightning arrester according to its development can be divided into: lightning protection gap is the most simple form; tube type arrester is a protection gap, but it can be in arc discharge; valve type arrester is a single discharge gap is divided into many short series gap, while increasing the nonlinear resistance, improve the protection performance; arrester magnetic blow - use magnetic blow type spark gap, improve the arc extinguishing ability, but also has a limited internal overvoltage capacity; Zinc Oxide arrester using the volt ampere characteristics of valve ideal Zinc Oxide (non linear high, namely in the high current is low resistance limit the voltage of arrester on a high resistance in the normal power frequency voltage), with no gap, under the continued flow of residual pressure is low, can limit the internal overvoltage, widely used.
Classification and introduction
Lightning arrester has two types of pipe and valve type.
Valve type arrester is divided into silicon carbide arrester and metal oxide surge arrester (also known as Zinc Oxide lightning arrester).
(1) type lightning arrester tube: internal clearances (also known as the arc gap) placed in the gas production materials arc tube, outer gap will tube and grid spaced. The lightning overvoltage causes internal and external gap discharge, the inner gap arc high temperature causes the gas to produce gas, and the pressure in the tube increases quickly. Tube type surge arrester has a large impact flow capacity, can be used in a large area of lightning current amplitude. But the tube type arrester discharge voltage is high and the dispersion is big, the action produces the cut wave, the protection performance is bad. Mainly used for the protection of the power plant, the line protection of the power plant and the protection of the line insulation.
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Add:Xiangyang Industrial Zone, Liushi, Wenzhou,P.R. China 
Contact Person:Candy zhao 
Tel:0086-577- 62600386 62602786
Fax:0086-577-62600796
P.C:325604
E-mail: xk@cnxiya.com
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