CN1172370A

CN1172370A - High-voltage lighting arrester

Info

Publication number: CN1172370A
Application number: CN 96103200
Authority: CN
Inventors: 张健
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-15
Filing date: 1996-02-15
Publication date: 1998-02-04

Abstract

The structure of said invented high-voltage lightning protector for high-voltage line is characterized by that it is made up by using several discharging rod bodies installed on a rectangular insulating board in the mode of series connection. The discharging rod body can be made of round copper rod, and its two ends are made into the form of taper cone or can be made of sheet copper, and its two ends are made into the saw-tooth form. Those discharging rod bodies are arranged in the form of end-to-end, and cann't be intercontacted, and between two ends, its clearance distance is 4-10 mm, and number of series-installed discharging rod bodies is dependent on the required lighting performance. Said invention is simple in manufacture, low in cost and good in lighting protection effect.

Description

High-voltage arrester

The invention belongs to the high-tension line lightning arrester, be tandem needle type lightning arrester again.

What install on the high-tension line for a long time, is the carborundum valve-type arrester.There is following shortcoming in this lightning arrester; One, will be very high-tension thunder and lightning could admittance, general thunder and lightning is not played lightning protection function; Two, often burnt behind the once big thunder and lightning of this lightning arrester admittance, when thunder and lightning arrives again, can not be played lightning protection function; Three, this lightning arrester is made complexity, and the cost height is difficult for repairing.Although therefore on high-tension line, installed valve-type arrester at present, all there are every year a lot of transformers and electric equipment to be smashed everywhere by thunder and lightning, bring many losses to the country and people.

The present invention is directed to the shortcoming that valve-type arrester exists, it is simple to design a kind of manufacturing, and lightning protection effect is good, durable high-tension line lightning arrester---tandem needle type lightning arrester.

Structure of the present invention is such: the accompanying drawing 1-3 that sees below, and accompanying drawing 1 and accompanying drawing 2 are the diagram of single high-voltage arrester, Fig. 3 is a plurality of lightning arresters diagrams of doing a lightning arrester use in parallel.Its structure and principle are such: on the square insulation board of a block length ((7) among the figure), being installed in series and going up many two ends that manufacture with garden copper bar or copper coin is garden taper or the jagged thunder needle body ((2) among the figure) of putting.Putting the thunder pin must install cutting edge of a knife or a sword by cutting edge of a knife or a sword, but can not contact with each other, and the clearance distance between them is between 3-3.5mm.The thunder needle body of putting is topmost put thunder needle body ((1) among the figure) inducing, and its lower end is garden taper or zigzag, and the upper end is smooth, and side is equipped with the double-screw bolt ((5) among the figure) that connects high-voltage line and use.Lightning arrester bottom put the thunder needle body floor ((4) among the figure), the end to ground also is smooth.The big double-screw bolt of side ((6) among the figure) is used for earth electrode.Respectively putting the thunder needle body is fixed on the insulation board (7) with spiral shell fourth ((3) among the figure).

Lightning arrester should be connected on earth, and what put the thunder needle bodies, and it is fixed that this will see that the high low degree of voltage on the circuit comes.To satisfy a condition in a word, lightning arrester is installed to high-tension line after, High Level AC Voltage can not flow into the earth by lightning arrester.Alternating current can pass through capacitor.The size of electric capacity is determined recently by the area size at the two poles of the earth and the distance of two interpolars, because of put the thunder pin spacing from nearest be sharp cutting edge of a knife or a sword, area is very little, so electric capacity is very small, add many thunder pins of putting of having connected, equal to have increased distance and make electric capacity become littler, thereby increased capacitive reactance, stop alternating current penetrating over the ground, import the earth thereby completely cut off alternating current.Thunder and lightning belongs to static, electrostatic energy makes the object induction of getting close to it generate xenogenesis equivalent electric charge, so as long as be with thunder and lightning on the high-voltage line, it can make all discharge needle bodies of connecting in the lightning arrester all become electrified body by induction, the most advanced and sophisticated electric charge of putting the thunder pin according to the reason of " the local electric charge that curvature is big more is intensive more " is maximum, the energy of position maximum.The voltage of thunder and lightning is very high, and what have surpasses more than hundred million volts, and this forceful electric power power can make the air molecule bump ionization of putting between the thunder needle body, thunder and lightning is imported the earth, thereby protected transformer, protection staff's safety, electric equipments such as protection high-tension line facility.

Lightning arrester of two or more single lightning arresters work in parallel uses, and lightning-arrest effect can be better, but do not form protected type (as Fig. 3).Whole lightning arrester entangles with ceramic package and is used for dustproof and waterproof.

A lightning arrester is installed on the live wire, and three each roots of live wire are installed one on the high-tension line, and circuit is far away, and the centre can be installed several more.The peace method of installation method and valve-type arrester is the same, will install the earth polar equally.

This lightning arrester is good every the performance that exchanges logical thunder and lightning, and makes simply, repairs inexpensive durable easily.

Claims

The invention belongs to the lightning arrester on the high-tension line.Its construction features are that the thunder pin of putting with many two ends sharp point shapes with circle copper bar or copper coin manufacturing is installed in series on insulation board and constitutes.The sharp point shape can be the garden taper, also can be zigzag.In order to improve lightning-arrest effect, can be with use of a plurality of lightning arresters do in parallel.The clearance distance of putting between the thunder needle body is the 3-3.5 millimeter.Requirement completely cut off alternating current after whole lightning arrester was pacified high-tension line, and easy admittance thunder and lightning, the how much next definite according to this requirement of thunder needle body put in series connection.Lightning arrester has two utmost points, and topmost a utmost point connects the high pressure live wire the thunder and lightning inducing utmost point.A utmost point is on the floor bottom.The same valve-type arrester of installing of installation method equally will conscientiously install the earth polar, and lightning arrester should be installed in high-tension line output and input, and several lightning arresters can be installed in circuit circuit centre far away more, and the place of all installation lightning arresters mustn't be walked close to by people and animals.