CN103199483A

CN103199483A - Lightning arrester device capable of being dismounted and installed in charged state

Info

Publication number: CN103199483A
Application number: CN2013100855062A
Authority: CN
Inventors: 冯长富
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-18
Filing date: 2013-03-18
Publication date: 2013-07-10

Abstract

The invention provides a lightning arrester device capable of being dismounted and installed in a charged state. The lightning arrester device capable of being dismounted and installed in a charged state is composed of an insulation support body, a charged part assembly, a detachable assembly, a grounding assembly, a grounding support body, a base and a support strap iron body. The charged part assembly is composed of a fixed contact movable cover and a power source binding post, and the charged part assembly is fixedly connected with the insulation support body as a whole through a bolt. The detachable assembly is composed of a charged end moving contact, an operating ring, a lightning arrester, a grounding end moving contact and a rotating shaft. The grounding assembly is composed of a grounding end fixed contact, a support groove and a bolt hole formed in the support groove, and the grounding support body and a grounding end assembly are fixedly connected as a whole through bolts. The insulation support body and the grounding support body are respectively fixed at two ends of the base through bolts to form the whole lightning arrester device capable of being dismounted and installed in a charged state. The base is fixed on a pole cross arm through the support strap iron body. According to the lightning arrester device capable of being charged in dismounting, workers can securely dismount and install the lightning arrester on the ground under the premise that power (a power grid) is not cut. Therefore, reliability of power supply is improved, and practicability is strong.

Description

Charged dismounting arrester device

Technical field

The present invention relates to a kind of brand-new electrical network and the installation of electricity generation system lightning arrester, specifically be a kind of can charged dismounting arrester device.

Background technology

Electrical network and the lightning protection facility of sending out the change system have two kinds, and a kind of is lightning rod and the lightning conducter that prevents from attacking directly damage to crops caused by thunder, and a kind of is the superpotential lightning arrester of anti-induction---current generally usefulness be zinc oxide arrester, be connected on the 10KV circuit, on the protection distribution transformer; Cable end, instrument transformer, the important power equipment of on-pole switch etc., when avoiding the sky thunderstorm to take place, the powerful induction overvoltage of Chan Shenging can not damage them on the line.But, because zinc oxide arrester firmly is overlapped on 10KW or the 35KW circuit, is in operation and breaks down in case run into lightning arrester, or accident, or annual preventive trial, all must they could be removed after the whole piece line outage and handle or change.

About 3,000,000 groups of the zinc oxide arrester that whole nation 35KW and 10KW circuit are installed above: (1) is by the requirement of power equipment preventive trial, have every year 1/3 lightning arrester will from electrical network remove carry out prerun after, install again, only this means must have a power failure time (loading onto)=2,000,000,1,000,000 (tearing open)+1,000,000 time of preventive trial.Facts have proved that (2) in the running, the accident that is damaged because of a variety of causes (as thunderbolt, product quality, grid short circuit etc.) accounts for several 1%-2% that always puts into operation to zinc oxide arrester on electrical network.Namely 3,000,000 * 1%=3 is ten thousand groups, upgrades again after also will removing and loads onto, and dead line is 60,000 times again.Based on above 2 points, the whole nation will have a power failure 2,000,000+60,000=2,060,000 times because of the lightning arrester reason every year, had a power failure 1 hour by each, since lightning arrester directly be positioned on the circuit of operation dismounting all completely (or sectionalized line) have a power failure, just with the estimation of first summary, the operating load of every dead line is 2000KW, and then the annual whole nation is lacked electricity sales amount at this point and is: 2000KW * 2 hour * 2,060,000 times=824000 myriawatts thousand. the time/year.In addition, the dismounting zinc oxide arrester, the workman must climb up electric pole and operate, and the labour intensity of service worker is big, at the bottom of the operating efficiency.

Summary of the invention

The objective of the invention is to solve the problem of above-mentioned existence, provide a kind of can be when the lightning arrester dismounting, what do not need that grid power blackout just can carry out the lightning arrester on the circuit dismounting can charged dismounting arrester device.

Technical scheme of the present invention is to realize like this; Constituted by insulation support body, charged part assembly, dismantled and assembled assembly, grounding assembly, ground connection supporter, base, support band iron spare, its charged part assembly is made up of fixed contact, fixed contact movable guard and power-line terminal, links into an integrated entity securely by bolt and insulation support body; Dismantled and assembled assembly is made up of live end moving contact, operation ring, lightning arrester, earth terminal moving contact, rotation axis; Its grounding assembly by earth terminal fixed contact, bracket groove and on bolt hole form, and by bolt ground connection supporter and earth terminal unit firmly are linked into an integrated entity.Insulation support body, ground connection supporter be respectively by being bolted to the base two ends, form one complete can charged dismounting arrester device, base is fixed on the electric pole cross-arm by supporting band iron.

Operation principle: up to now, the lightning arrester that inserts on the electrical network all is as shown in Figure 4, the upper end of lightning arrester directly is connected on high pressure (10KV, the 35KV) line securely, but because of a variety of causes, test as the lightning arrester fault or to it, lightning arrester be removed (comprise certainly and loading onto) and all have a power failure and just can carry out in the intelligent online road.And installed the present invention can charged dismounting arrester device after, no matter be that lightning arrester is done replacing, preventive trial, maintenance etc., power network line all needn't have a power failure just can finish disassemble and assemble work.1. power circuit has been installed behind the present invention under charged state, the staff on the ground just can pulling down lightning arrester safety, installing of safety, alleviate maintenance personal's labour intensity, and raise labour efficiency, 2. electrical network does not have a power failure and can reach the purpose of dismounting lightning arrester, has both improved the reliability of power supply, increase electricity sales amount again, had significant business economic benefit and social benefit.

Description of drawings

Fig. 1 is structural representation of the present invention, Fig. 2 is the side-looking structural representation of charged assembly, Fig. 2-the 1st, the cutaway view structural representation of Fig. 2, Fig. 3 is the side-looking structural representation of the dismantled and assembled assembly of earth terminal, Fig. 3-the 1st, the plan structure schematic diagram of the dismantled and assembled assembly of earth terminal, Fig. 4 is that traditional lightning arrester is installed in the structural representation on the electric pole, and Fig. 5 is that the present invention is installed in the structural representation on the electric pole, and Fig. 6 is the operation lever structure schematic diagram that cooperates the invention dismounting to use.

Among the figure 1, insulation support body; 2, power-line terminal (or as bolt usefulness); 3, movable guard; 4, fixed contact; 5, moving contact; 6, operation ring; 7, lightning arrester; 8, ground connection moving contact; 9, rotation axis; 10, earth terminal fixed contact; 11, rotation axis bracket groove; 12, bolt hole; 13, grounding contact spring leaf; 14, dead earth fixed contact spring leaf; 15, the skeleton of dead earth fixed contact spring leaf; 16, ground connection supporter; 17, base; 18, band iron; 19, spring; 20, axle; 21, fixed contact set bolt; 22, chock in the cover; 23, the perpendicular wooden fork branch of action bars; 24; The horizontal wooden fork branch of action bars.

Embodiment

The present invention is further described below in conjunction with accompanying drawing.

Shown in Figure 1, can charged dismounting arrester device, it is characterized in that being constituted by insulation support body 1, live part group, dismantled and assembled assembly, grounding assembly, ground connection supporter 16, base 17, support band iron spare 18, its charged part assembly is made up of fixed contact 4, movable guard 3 and power-line terminal 2, links into an integrated entity securely by bolt and insulation support body; Dismantled and assembled assembly is made up of live end moving contact 5, operation ring 6, lightning arrester 7, earth terminal moving contact 8, rotation axis 9; Its grounding assembly by earth terminal fixed contact 10, bracket groove 11 and on bolt hole 12 form, and by bolt ground connection supporter 16 and earth terminal unit firmly are linked into an integrated entity.Insulation support body 1, ground connection supporter 16 be respectively by being bolted to base 17 two ends, form one complete can charged dismounting arrester device, base 17 is fixed on the electric pole cross-arm by supporting band iron spare 18.Shown in Fig. 1,4,5, working centre is: will have the lightning arrester upper end now and fixedly be connected on the charged high-voltage power line, the lower end fixedly is connected on the angle steel cross-arm of ground connection, and this is traditional mounting means (see figure 4).The present invention for will upper and lower 2 be designed to can deciliter the movable contact replacement, be the charged moving contact 5 of lightning arrester 7 two ends difference and the moving contact 8 of ground connection, and the fixed contact 4,10 " extremely " at two ends is connected on the high-voltage power line and ground connection angle steel cross-arm on, this has created condition just for the charged dismounting of lightning arrester.

Two frame of broken lines are represented charged assembly, dismantled and assembled assembly respectively among Fig. 1.

In Fig. 1, Fig. 2-1: 12.1 is the bolt hole that power-line terminal 2 links to each other with support insulator, and 19 springs both can have been controlled the rotational displacement return of movable guard, and charged fixed contact is contacted closely with moving contact.Movable guard 3 charged fixed contacts 4, both the fixed axis 20 that passes through of spring 19 was connected and fixed.

Among Fig. 3, Fig. 3-1: 13 is the spring leaf of ground connection fixed contact, and 14 are the fixing bolt of fixed contact spring leaf, and 15 is the fixing skeleton of fixed contact spring leaf.

The operating process of the charged dismounting of accompanying drawings:

Embodiment 1 when " can charged dismounting arrester device " when electrical network moves, need remove, and this moment, power circuit can not have a power failure, the staff stands on the ground, with a qualified insulating bar, the 23 fork branches on top upwards hit the movable guard 3 of live end, and the chock 22 in the movable guard separates with fixed contact 4 owing to displacement causes moving contact 5, and dismantled and assembled assembly falls.The dismantled and assembled assembly that fall this moment hangs in the rotation axis bracket groove 11, and this moment, the operator pitched branch through in the operation ring 6 with 24 of action bars top again, and assembly is taken off.

Embodiment 2 with qualified lightning arrester changing-over after on the dismantled and assembled assembly, pierce in the operation ring 6 with 24 fork branches on the operation masthead, after the rotation axis 9 of dismantled and assembled assembly being put in the swinging mounting groove 11 of earth terminal 13, firmly the movable contact 5 of dismantled and assembled assembly is banged in the movable guard 3 of charged assembly end again, makes moving contact 5 enter the interior chock 22 of cover and be stuck---the elastic force effect of 19 pairs of movable guards 3 of spring.This moment charged assembly fixed contact 4 closely contact with moving contact 5, the moving contact 9 of dismantled and assembled assembly lower end also so the rotation and forward displacement tightly contact and conducting with fixed contact 10.Finish the charged operation of loading onto lightning arrester.

Claims

One kind can charged dismounting arrester device, it is characterized in that being constituted by insulation support body, live part group, dismantled and assembled assembly, grounding assembly, ground connection supporter, base, support band iron body, its live part group is made up of fixed contact, fixed contact movable guard and power-line terminal, links into an integrated entity securely by bolt and insulation support body; Dismantled and assembled assembly is made up of live end moving contact, operation ring, lightning arrester, earth terminal moving contact, rotation axis; Its grounding assembly by earth terminal moving contact, bracket groove and on bolt hole form, and by bolt ground connection supporter and earth terminal unit firmly are linked into an integrated entity; Insulation support body, ground connection supporter be respectively by being bolted to the base two ends, form one complete can charged dismounting arrester device, base is fixed on the electric pole cross-arm by supporting band iron spare.