CN103532047B - A kind of operational method and device changing fuse switch on 10kV post - Google Patents

A kind of operational method and device changing fuse switch on 10kV post Download PDF

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Publication number
CN103532047B
CN103532047B CN201310485847.9A CN201310485847A CN103532047B CN 103532047 B CN103532047 B CN 103532047B CN 201310485847 A CN201310485847 A CN 201310485847A CN 103532047 B CN103532047 B CN 103532047B
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China
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fuse switch
replaced
switch
insulation
self arc
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CN201310485847.9A
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CN103532047A (en
Inventor
王家峰
高振江
张绍强
单中闯
蒋祖利
于庆新
张维华
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State Grid Liaoning Electric Power Co Ltd
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ANSHAN POWER SUPPLY COMPANY LIAONING ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
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Abstract

The present invention relates to 10kV distribution hot line maintenance technical field, particularly relate to a kind of operational method and the device of changing fuse switch on 10kV post, using self arc formula bypass fuse switch as inicdental bypath equipment, shunting is carried out to fuse switch to be replaced and reach a turn charged object, change after making fuse switch to be replaced out of service.Compared with prior art, the invention has the beneficial effects as follows: 1) adopt self arc formula fuse switch as throwing labour shunting device, meet the technical conditions that on-load changes fuse switch, reduce task difficulty; 2) what adopt insulated lift support to complete between shunting device with electric pole is firmly connected, and can provide enough safe distances, solve equipment gap little, the difficult problem that shunting device cannot be installed for operating personnel; 3) meet the technical characterstic of China's live line working, realize on-load and change fuse switch, avoid having a power failure and economic loss is caused to downstream electricity consumption enterprise and resident.

Description

A kind of operational method and device changing fuse switch on 10kV post
Technical field
The present invention relates to 10kV distribution hot line maintenance technical field, particularly relate to a kind of operational method and the device of changing fuse switch on 10kV post.
Background technology
At present, the live line working of power distribution network is the main direction of studying of power distribution network operation technique, and hot line maintenance is the Main Means solving power distribution network uninterrupted operation.Change in the operational method of 10kV fuse switch at on-load, routine utilizes insulation lead wire to carry out operating in short-circuit and shunt to change fuse, because fuse switch has the characteristic cutting off electric current, on-load changes the cut-out current capacity that fuse switch must consider shunting device, direct insulation lead wire carries out shunting operation and there is potential safety hazard, such as: fuse switch to be replaced is in incision state and in addition two-phase fuse switch is in co-bit time (this situation is maximum), if with insulation lead wire on-load connect lead-in wire can connect draw position produce arc light, can cause operating personnel when arc light is excessive and burn, so forbid that on-load connects lead-in wire in live line working at present, that is when fuse switch to be replaced is in incision state, to utilize insulation lead wire to equipment short circuit, carry out on-load replacing.
This operational method also inapplicable various application occasions simultaneously, as the replacing operation of the fuse switch of common double pole transformer platform, insulating transformer platform and diverging tracks, ubiquity operating personnel safe distance is not enough, equipment gap is little, shunting device such as cannot to install at the technological difficulties, is unfavorable for promoting the use of of this operational method.
Summary of the invention
The object of this invention is to provide a kind of operational method and the device of changing fuse switch on 10kV post, using self arc formula bypass fuse switch as main throwing labour equipment, adopt side to connect switch and carry out triage operator, reduce hot line maintenance difficulty.
To achieve these goals, the present invention is by the following technical solutions:
A kind of operational method changing 10kV fuse switch, using self arc formula bypass fuse switch as inicdental bypath equipment, shunting is carried out to fuse switch to be replaced and reach a turn charged object, change after making fuse switch to be replaced out of service, its concrete operation step is as follows:
1) operating personnel carries out insulation to gold utensil on the wire in job area and bar by aerial lift device with insulated arm and covers outside electric pole, during operation according to by near to far, the order of earth electrode sets gradually insulation masking material from the bottom to top, after ecto-entad, first electrified body, but the contact place of fuse switch to be replaced does not cover do insulation;
2) after insulation is covered and is provided with, operating personnel arranges insulated lift support being no less than on 0.6m distance electric pole below switch cross-arm, make insulated lift support and fuse switch to be replaced lay respectively at the both sides of electric pole, then self arc fuse switch is installed on insulated lift support;
3) self arc fuse switch is made to be in separated position, thoroughly do away with the edge drainage hanging wires respective correspondence that to be gone between at self arc fuse switch two ends with two to be connected with the wire at fuse switch two ends to be replaced, close self arc fuse switch, completes the shunting to fuse switch to be replaced;
4) test stream to self arc fuse switch and insulation drainage hanging wire respectively, after confirming that shunting is normal, pull open fuse switch to be replaced, measure is covered in the insulation of removing fuse switch place to be replaced, the fuse switch more renewed;
5) operating personnel closes new fuse switch, and tests stream to the two ends contact of new fuse switch, confirms normally through-flow;
6) pull open self arc fuse switch, remove insulation drainage hanging wire and the self arc fuse switch at self arc fuse switch two ends;
7) remove insulation to cover, according to from far near, from top to bottom, from inside to outside, first ground connection after this order of electrified body carry out successively;
8) operating personnel returns to ground, the end of job.
The insulation drainage hanging wire adopted in described method, comprises the copper cash of having insulation sheath, and one end of copper cash is provided with the wire connecting ends be made up of locking insulated handle and wire hook, and the other end of copper cash is provided with the equipment connection end linked up with and screwed handle by contact and form.
The insulated lift support adopted in described method, comprise insulating bar, metal holder, tension soft ribbons and metal stabilizing bracket, metal stabilizing bracket is located at metal the top of holder, metal is connected one end of holder with tension soft ribbons, metal is provided with the other end of holder and tightens up handle, and described insulating bar is open column shape, elevating lever is provided with in insulating bar, elevating lever is provided with adjustment hole along its length, and the bottom of elevating lever is provided with switch installing hole, is connected between elevating lever with insulating bar by pin.
The distribution length of described adjustment hole is 600 ~ 800mm.
Compared with prior art, the invention has the beneficial effects as follows:
1) adopt self arc formula fuse switch as throwing labour shunting device, meet the technical conditions that on-load changes fuse switch, significantly reduce task difficulty, there is application value;
2) what adopt insulated lift support to complete between shunting device with electric pole is firmly connected, enough safe distances can be provided for operating personnel, solve equipment gap little, the difficult problem that shunting device cannot be installed, make this operational method be applicable to multiple Different field equipment situation;
3) meet the technical characterstic of China's live line working, achieve on-load and change fuse switch, avoid having a power failure and economic loss is caused to downstream electricity consumption enterprise and resident.
Accompanying drawing explanation
Fig. 1 is insulated lift stent embodiment structural representation of the present invention;
Fig. 2 is that the present invention is insulated drainage hanging wire example structure schematic diagram;
Fig. 3 is operating principle figure of the present invention;
Fig. 4 is work flow schematic block diagram of the present invention.
In figure: 1-insulating bar 2-metal tightens up handle 6-elevating lever 7-adjustment hole 8-switch installing hole 9-pin 10-copper cash 11-locking insulated handle 12-wire hook 13-contact hook 14-holder 3-tension soft ribbons 4-metal stabilizing bracket 5-and screws handle
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, it is insulated lift stent embodiment structural representation of the present invention, comprise insulating bar 1, metal is holder 2, tension soft ribbons 3 and metal stabilizing bracket 4, metal stabilizing bracket 4 is located at metal the top of holder 2, metal is connected one end of holder 2 with tension soft ribbons 3, metal is provided with the other end of holder 2 and tightens up handle 5, insulating bar 1 is open column shape, elevating lever 6 is provided with in insulating bar 1, elevating lever 6 is provided with adjustment hole 7 along its length, the bottom of elevating lever 6 is provided with switch installing hole 8, be connected by pin 9 between elevating lever 6 with insulating bar 1, by pin adjustment elevating lever 6 length.The distribution length of adjustment hole 7 is 600 ~ 800mm, can ensure the minimum safe distance of 0.6m between self arc formula fuse switch and switch cross-arm.
See Fig. 2, that the present invention is insulated drainage hanging wire example structure schematic diagram, comprise the copper cash 10 of having insulation sheath, one end of copper cash is provided with the wire connecting ends be made up of locking insulated handle 11 and wire hook 12, and the other end of copper cash is provided with links up with 13 and screw the equipment connection end that handle 14 forms by contact.Wire hook 12 is for being connected with the wire at fuse switch two ends to be replaced, and locking insulated handle 11 is for ensureing to connect reliably, and contact hook 13 is for being connected with shunting device contact, and screwing handle 14 can operate with insulating bar, assembling safe ready.Equipment connection end can be connected with fuse switch before operation, also can be connected with fuse switch terminal in operation.
When considering that breaking and connecting go between, equipment room is apart from little, safe distance between operating personnel with adjacent phase electrified body is not enough, and adopt and hook wire clamp connects time the factor such as cumbersome, therefore, the structure of this equipment connection end effectively can shorten operation time, and the outer field good insulation properties of copper cash 10 also can evade some security risks simultaneously, reduces the operation intensity of personnel; Originally single-phase breaking and connecting gage system needs more than 30 minutes, and only needs the time of 3 ~ 5 minutes now.
A kind of operational method changing 10kV fuse switch of the present invention, carry out shunting using self arc formula bypass fuse switch as inicdental bypath equipment to fuse switch to be replaced to reach a turn charged object, change after making fuse switch to be replaced out of service, self arc drop out fuse is due to good arc extinguishing ability, the safety of operating personnel in operation process can be ensured, be applicable to use in hot line maintenance, its concrete operation step is as follows:
1) operating personnel carries out insulation to gold utensil on the wire in job area and bar by aerial lift device with insulated arm and covers outside electric pole, during operation according to by near to far, the order of earth electrode sets gradually insulation masking material from the bottom to top, after ecto-entad, first electrified body, action is as far as possible lightly carried out, but the contact place of fuse switch to be replaced does not cover do insulation;
2) after insulation is covered and is provided with, operating personnel arranges insulated lift support being no less than on 0.6m distance electric pole below switch cross-arm, make insulated lift support and fuse switch to be replaced lay respectively at the both sides of electric pole, then self arc fuse switch is installed on insulated lift support;
3) self arc fuse switch is made to be in separated position, thoroughly do away with the edge drainage hanging wires respective correspondence that to be gone between at self arc fuse switch two ends with two to be connected with the wire at fuse switch two ends to be replaced, close self arc fuse switch, completes the shunting to fuse switch to be replaced;
4) test stream to self arc fuse switch and insulation drainage hanging wire respectively, after confirming that shunting is normal, pull open fuse switch to be replaced, measure is covered in the insulation of removing fuse switch place to be replaced, the fuse switch more renewed;
5) operating personnel closes new fuse switch, and tests stream to the two ends contact of new fuse switch, confirms normally through-flow;
6) pull open self arc fuse switch, remove insulation drainage hanging wire and the self arc fuse switch at self arc fuse switch two ends;
7) remove insulation to cover, according to from far near, from top to bottom, from inside to outside, first ground connection after this order of electrified body carry out successively, action is as far as possible lightly carried out, and must exempt to cause unnecessary security incident;
8) operating personnel returns to ground, the end of job.

Claims (2)

1. change the operational method of 10kV fuse switch for one kind, it is characterized in that, using self arc formula bypass fuse switch as inicdental bypath equipment, shunting is carried out to fuse switch to be replaced and reach a turn charged object, change after making fuse switch to be replaced out of service, its concrete operation step is as follows:
1) operating personnel carries out insulation to gold utensil on the wire in job area and bar by aerial lift device with insulated arm and covers outside electric pole, during operation according to by near to far, the order of earth electrode sets gradually insulation masking material from the bottom to top, after ecto-entad, first electrified body, but the contact place of fuse switch to be replaced does not cover do insulation;
2) after insulation is covered and is provided with, operating personnel arranges insulated lift support being no less than on 0.6m distance electric pole below switch cross-arm, make insulated lift support and fuse switch to be replaced lay respectively at the both sides of electric pole, then self arc fuse switch is installed on insulated lift support; Described insulated lift support comprises insulating bar, metal holder, tension soft ribbons and metal stabilizing bracket, metal stabilizing bracket is located at metal the top of holder, metal is connected one end of holder with tension soft ribbons, metal is provided with the other end of holder and tightens up handle, described insulating bar is open column shape, is provided with elevating lever in insulating bar, and elevating lever is provided with adjustment hole along its length, the bottom of elevating lever is provided with switch installing hole, is connected between elevating lever with insulating bar by pin;
3) self arc fuse switch is made to be in separated position, thoroughly do away with the edge drainage hanging wires respective correspondence that to be gone between at self arc fuse switch two ends with two to be connected with the wire at fuse switch two ends to be replaced, close self arc fuse switch, completes the shunting to fuse switch to be replaced;
4) test stream to self arc fuse switch and insulation drainage hanging wire respectively, after confirming that shunting is normal, pull open fuse switch to be replaced, measure is covered in the insulation of removing fuse switch place to be replaced, the fuse switch more renewed;
5) operating personnel closes new fuse switch, and tests stream to the two ends contact of new fuse switch, confirms normally through-flow;
6) pull open self arc fuse switch, remove insulation drainage hanging wire and the self arc fuse switch at self arc fuse switch two ends;
7) remove insulation to cover, according to from far near, from top to bottom, the order of electrified body is carried out successively from inside to outside, after first earth electrode;
8) operating personnel returns to ground, the end of job.
2. a kind of operational method changing 10kV fuse switch according to claim 1, is characterized in that, described insulated lift support, and the distribution length of its adjustment hole is 600 ~ 800mm.
CN201310485847.9A 2013-10-16 2013-10-16 A kind of operational method and device changing fuse switch on 10kV post Active CN103532047B (en)

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Publication number Priority date Publication date Assignee Title
CN104104030A (en) * 2014-07-30 2014-10-15 国家电网公司 Hot-line work recovery method of ground wire of high-voltage cable shielding layer since stealing
CN106785942B (en) * 2017-01-25 2018-01-05 国网山东省电力公司乳山市供电公司 High-tension fuse operation protecting device and high-tension fuse protection against electric shock operational method
CN109390872A (en) * 2018-11-05 2019-02-26 国网浙江省电力有限公司杭州供电公司 It is a kind of to be turned based on the moving load for bypassing Live line maintenance method for system

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CN102931609A (en) * 2012-09-03 2013-02-13 辽宁省电力有限公司鞍山供电公司 Operation method for replacing 10kV drop-out fuse in on-load manner
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CN201408942Y (en) * 2009-05-15 2010-02-17 上海市南电力工程有限公司 Flow inducing connecting device for 10 kV lines
CN202423951U (en) * 2011-12-12 2012-09-05 河南省电力公司南阳供电公司 Charged cladding drainage tool
CN102931609A (en) * 2012-09-03 2013-02-13 辽宁省电力有限公司鞍山供电公司 Operation method for replacing 10kV drop-out fuse in on-load manner
CN103001142A (en) * 2012-09-03 2013-03-27 辽宁省电力有限公司鞍山供电公司 Operation method for on-load replacing of 10kV pole-mounted disconnector

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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd.

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee before: State Grid Corporation of China

Patentee before: Anshan Power Supply Company, Liaoning Electric Power Co., Ltd.

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee
TR01 Transfer of patent right

Effective date of registration: 20160823

Address after: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 52

Patentee after: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd.

Patentee after: State Grid Corporation of China

Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee before: State Grid Corporation of China

Patentee before: Anshan Power Supply Company, State Grid Liaoning Electric Power Co., Ltd.