保定电气厂家价格-交流无间隙金属氧化物避雷器

避雷器分为很多种，有金属氧化物避雷器，线路型金属氧化物避雷器，无间隙线路型金属氧化物避雷器，全绝缘复合外套金属氧化物避雷器，可卸式避雷器。

Lightning arrester is divided into a lot of kinds, metal oxide surge arrester, line type metal oxide surge arrester, non-clearane metal oxide arrester line type, insulation composite coat of metal oxide surge arrester, detachable arrester. 

避雷器的主要类型有管型避雷器、阀型避雷器和氧化锌避雷器等。每种类型避雷器的主要工作原理是不同的，但是它们的工作实质是相同的，都是为了保护通信线缆和通信设备不受损害。

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

管型避雷器

Tube type arrester 

管型避雷器实际是一种具有较高熄弧能力的保护间隙，它由两个串联间隙组成，一个间隙在大气中，称为外间隙，它的任务就是隔离工作电压，避免产气管被流经管子的工频泄露电流所烧坏；另一个装设在气管内，称为内间隙或者灭弧间隙，管型避雷器的灭弧能力与工频续流的大小有关。这是一种保护间隙型避雷器，大多用在供电线路上作避雷保护。

Tube type of surge arrester is actually a kind of high ability of arc protection gap, it is composed of two series gap, a gap in the atmosphere, called clearance, its task is to isolate work voltage, avoid to produce the trachea was burnt by the industrial frequency leakage current flows through the pipe; The other installation is in the trachea, which is called interstitial space or an arc of extinction, and the extinguishing capacity of the pipe type arrester is related to the size of the continuous flow of the work. This is a protective clearance arrester, mostly used for lightning protection on power lines. 

阀型避雷器

The valve type arrester 

阀型避雷器由火花间隙及阀片电阻组成，阀片电阻的制作材料是特种碳化硅。利用碳化硅制作的发片电阻可以有效地防止雷电和高电压，对设备进行保护。当有雷电高电压时，火花间隙被击穿，阀片电阻的电阻值下降，将雷电流引入大地，这就保护了线缆或电气设备免受雷电流的危害。在正常的情况下，火花间隙是不会被击穿的，阀片电阻的电阻值较高，不会影响通信线路的正常通信。

The valve type arrestor consists of spark gap and valve disc resistance, and the disc resistance is made of special silicon carbide. The use of a chip resistor made from silicon carbide can effectively prevent lightning and high voltage and protect the equipment. When there is lightning, high voltage spark gap is punctured, the valve plate resistance of resistance to drop, the lightning current into the earth, this is to protect the cable or electrical equipment from the dangers of lightning current. In normal circumstances, the spark gap is not punctured, and the resistance of the disc resistance is higher, which does not affect the normal communication of the communication line. 

氧化锌避雷器

Zinc oxide arrester 

氧化锌避雷器是一种保护性能优越、质量轻、耐污秽、性能稳定的避雷设备。它主要利用氧化锌良好的非线性伏安特性，使在正常工作电压时流过避雷器的电流极小（微安或毫安级）；当过电压作用时，电阻急剧下降，泄放过电压的能量，达到保护的效果。这种避雷器和传统避雷器的差异是它没有放电间隙，利用氧化锌的非线性特性起到泄流和开断的作用。

The zinc oxide arrester is a kind of lightning protection device that protects the superior quality, low quality, and stable performance. It mainly USES the non-linear volt ampere characteristic of zinc oxide, which makes the current minimum (microampere or milliampere level) that flows through the arrester during normal working voltage. When the voltage is applied, the resistance drops sharply, the energy of the discharge voltage is reduced, and the protective effect is achieved. The difference between the lightning arrestor and the traditional arrester is that it has no discharge gap, and USES the non-linear characteristic of zinc oxide to act as a discharge and break. 

以上介绍了几种避雷器，每种避雷器各自有各自的优点和特点，需要针对不同的环境进行使用，才能起到良好的避雷效果。

Above, introduces several lightning arrester each arrester each have their own advantages and characteristics of the need for different use of the environment, can play a good lightning protection effect.