CN103354325A - Method for changing load switch in on-load manner - Google Patents
Method for changing load switch in on-load manner Download PDFInfo
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- CN103354325A CN103354325A CN2013102754846A CN201310275484A CN103354325A CN 103354325 A CN103354325 A CN 103354325A CN 2013102754846 A CN2013102754846 A CN 2013102754846A CN 201310275484 A CN201310275484 A CN 201310275484A CN 103354325 A CN103354325 A CN 103354325A
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Abstract
The invention relates to the technical field of high-voltage cable switch installation and discloses a method for changing a load switch in an on-load manner. An insulating bucket truck is adopted for connecting an insulating cable connected with a switch cabinet to a circuit on two sides of the load switch. Then operation of changing the load switch is performed. The method for changing the load switch in the on-load manner provided by the invention can be applied to changing the load switch when devices such as the switch cabinet, the insulating cable and the like are in an on-load state. The operation is safe, quick and simple and power supply stability is improved.
Description
Technical field
The present invention relates to the technical field that the high-tension cable switch is installed, especially relate to the method that a kind of on-load is changed on-load switch.
Background technology
On-load switch is the important current-carrying device of distribution line, is in for a long time outdoor load carrying, and failure rate is higher, often needs to change operation.
The method of in the past changing is: take the mode of line outage to change on-load switch.Operate the length that expends time in but change, the user on this circuit is in power down mode during this period, has brought great inconvenience for these users, has reduced the stability of power supply.
Summary of the invention
The present invention provides a kind of on-load to change the method for on-load switch for overcoming above-mentioned deficiency of the prior art.
The present invention is achieved through the following technical solutions above-mentioned purpose.
A kind of on-load is changed the method for on-load switch, comprises aerial lift device with insulated arm, switch cubicle, insulated cable; Step comprises:
S1: aerial lift device with insulated arm is positioned on the vacant lot of on-load switch side-lower and fixing, then connects earth connection;
S2: go up safety barrier and working signal all around at aerial lift device with insulated arm and instrument putting position;
S3: insulated cable is connected in respectively on the binding post of switch cubicle both sides, switch cubicle is operated out the position;
S4: the electrician enters in the insulation bucket of aerial lift device with insulated arm after dressing the insulating protection apparatus, and fastens seat belts;
S5: rise the insulation bucket, in insulation bucket lifting way, the low-voltage electric equipment in the scope of touching insulated cover;
S6: the bucket that will insulate is positioned job position, to the limit phase conductor conducting wire mask in the job area, the opening turning of wire mask downwards, and the edge that moves insulator to clamps with insulating blanked clamper;
S7: according near to far away, from big to small, from low to high, live part and grounded parts behind the first electrified body around the order opposite side phase conductor of earth electrode cover, then respectively to other two wires and around live part and grounded parts cover;
S7: switch cubicle both sides homophase insulated cable is connected on the both sides circuit of on-load switch;
S8: the console switch cabinet is in co-bit;
S9: use respectively sense switch cabinet three-phase through-flow of ammeter;
S10: the operational load switch is in a minute position, and is out of service;
S11: the disconnection on-load switch is connected with the both sides circuit, makes on-load switch be in dead status, and covers;
S12: remove on-load switch, also fixing new on-load switch is installed, and operate new on-load switch and be in minute;
S13: new on-load switch both sides lead-in wire is connected on respectively on the circuit of both sides;
S14: new on-load switch is closed, detect three-phase through-flow with ammeter;
S15: cut-off switch cabinet;
S16: the dismounting insulated cable is connected with the both sides circuit, and the insulated cable let-down is arrived ground;
S17: according to from as far as closely, from small to large, from high to low, the orderly release wire mask of electrified body behind the first earth electrode;
S18: mobile insulation struggles against to low-voltage electric equipment place, removes the masking device on the low-voltage electric equipment;
S19: mobile insulation bucket returns ground.
Described aerial lift device with insulated arm is two, and is arranged on the vacant lot of on-load switch down either side and fixing, and the electricians in two insulation buckets carry out the operation of S5 ~ S18 synchronously.Simultaneous operation can be increased work efficiency, simultaneously operation safe.
The present invention compared with prior art mainly has following beneficial effect: the equipment such as application switch cabinet, insulated cable are changed on-load switch in the situation of on-load, and handling safety, quick and easy has improved the stability of power supply, is particularly useful for the 10kV power distribution circuit.
Description of drawings
Fig. 1 is embodiment site layout project schematic diagram.
Fig. 2 is the connection schematic diagram of embodiment.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.Accompanying drawing only is used for exemplary illustration, can not be interpreted as the restriction to this patent.
For more succinct explanation present embodiment, some well known to a person skilled in the art but can omit to some extent with the incoherent parts of main contents of the present invention in accompanying drawing or the explanation.For ease of statement, some parts has omission, zooms in or out in the accompanying drawing, but does not represent size or the entire infrastructure of actual product in addition.
Embodiment 1:
As shown in Figure 1, a kind of on-load is changed the method for on-load switch, comprises aerial lift device with insulated arm 1, switch cubicle 2, insulated cable 3; Step comprises:
S1: aerial lift device with insulated arm 1 is positioned on the vacant lot of on-load switch side-lower and fixing, then connects earth connection;
S2: go up safety barrier and working signal all around at aerial lift device with insulated arm 1;
S3: insulated cable 3 is connected in respectively on the binding post of switch cubicle 2 both sides, switch cubicle 2 is operated to opening the position;
S4: the electrician enters in the insulation bucket 11 of aerial lift device with insulated arm 1 after dressing the insulating protection apparatus, and fastens seat belts;
S5: rise insulation bucket 11, in insulation bucket 11 liftings way, the low-voltage electric equipment in the scope of touching insulated cover;
S6: the bucket that will insulate 11 is positioned job position, to the limit phase conductor conducting wire mask in the job area, the opening turning of wire mask downwards, and the edge that moves insulator to clamps with insulating blanked clamper;
S7: according near to far away, from big to small, from low to high, live part and grounded parts behind the first electrified body around the order opposite side phase conductor of earth electrode cover, then respectively to other two wires and around live part and grounded parts cover;
S7: switch cubicle 2 both sides homophase insulated cables 3 are connected on the both sides circuit of on-load switch;
S8: console switch cabinet 2 is in co-bit;
S9: use the respectively three-phase through-flow of sense switch cabinet 2 of ammeter;
S10: the operational load switch is in a minute position, and is out of service;
S11: the disconnection on-load switch is connected with the both sides circuit, makes on-load switch be in dead status, and covers;
S12: remove on-load switch, also fixing new on-load switch is installed, and operate new on-load switch and be in minute;
S13: new on-load switch both sides lead-in wire is connected on respectively on the circuit of both sides;
S14: new on-load switch is closed, detect three-phase through-flow with ammeter;
S15: cut-off switch cabinet 2;
S16: dismounting insulated cable 3 is connected with the both sides circuit, and insulated cable 3 let-downs are arrived ground;
S17: according to from as far as closely, from small to large, from high to low, the orderly release wire mask of electrified body behind the first earth electrode;
S18: mobile insulation bucket 11 is removed the masking device on the low-voltage electric equipment to low-voltage electric equipment place;
S19: mobile insulation bucket 11 returns ground.
As shown in Figure 2, insulated cable in the present embodiment is the six roots of sensation, cooperate a switch cubicle to form the temporary transmission system, with its short circuit on the circuit of on-load switch to be changed both sides, in the live line working process, do not need to excise circuit institute on-load, by the console switch cabinet, guide power supply into this temporary transmission circuit, keep other user's uninterrupted power supplies of circuit by this temporary transmission circuit.Disconnect on-load switch to be changed, on-load switch to be changed enters under the dead status and more changes jobs, and has guaranteed the lasting reliable power supply of distribution network systems.
Again as shown in Figure 1, adopt two aerial lift device with insulated arm 1 in the present embodiment, be arranged on the vacant lot of on-load switch down either side and fixing, the electricians in two insulation buckets 11 carry out the operation of S5 ~ S18 synchronously.
The equipment such as present embodiment application switch cabinet 2, insulated cable 3 do not cut off the power supply, are changing on-load switch in the situation of on-load, and handling safety, quick and easy has improved the stability of power supply, is particularly useful for the 10kV power distribution circuit.
Below only be a specific embodiment of the present invention, but design concept of the present invention is not limited to this, all the present invention of utilization conceive the insubstantial modifications that the present invention is made, and all fall within protection scope of the present invention.
Claims (2)
1. the method for an on-load replacing on-load switch is characterized in that: comprise aerial lift device with insulated arm, switch cubicle, insulated cable; Step comprises:
S1: aerial lift device with insulated arm is positioned on the vacant lot of on-load switch side-lower and fixing, then connects earth connection;
S2: go up safety barrier and working signal all around at aerial lift device with insulated arm and instrument putting position;
S3: insulated cable is connected in respectively on the binding post of switch cubicle both sides, switch cubicle is operated out the position;
S4: the electrician enters in the insulation bucket of aerial lift device with insulated arm after dressing the insulating protection apparatus, and fastens seat belts;
S5: rise the insulation bucket, in insulation bucket lifting way, the low-voltage electric equipment in the scope of touching insulated cover;
S6: the bucket that will insulate is positioned job position, to the limit phase conductor conducting wire mask in the job area, the opening turning of wire mask downwards, and the edge that moves insulator to clamps with insulating blanked clamper;
S7: according near to far away, from big to small, from low to high, live part and grounded parts behind the first electrified body around the order opposite side phase conductor of earth electrode cover, then respectively to other two wires and around live part and grounded parts cover;
S7: switch cubicle both sides homophase insulated cable is connected on the both sides circuit of on-load switch;
S8: the console switch cabinet is in co-bit;
S9: use respectively sense switch cabinet three-phase through-flow of ammeter;
S10: the operational load switch is in a minute position, and is out of service;
S11: the disconnection on-load switch is connected with the both sides circuit, makes on-load switch be in dead status, and covers;
S12: remove on-load switch, also fixing new on-load switch is installed, and operate new on-load switch and be in minute;
S13: new on-load switch both sides lead-in wire is connected on respectively on the circuit of both sides;
S14: new on-load switch is closed, detect three-phase through-flow with ammeter;
S15: cut-off switch cabinet;
S16: the dismounting insulated cable is connected with the both sides circuit, and the insulated cable let-down is arrived ground;
S17: according to from as far as closely, from small to large, from high to low, the orderly release wire mask of electrified body behind the first earth electrode;
S18: mobile insulation struggles against to low-voltage electric equipment place, removes the masking device on the low-voltage electric equipment;
S19: mobile insulation bucket returns ground.
2. on-load according to claim 1 is changed the method for on-load switch, it is characterized in that: described aerial lift device with insulated arm is two, and be arranged on the vacant lot of on-load switch down either side and fixing, the electricians in two insulation buckets carry out the operation of S5 ~ S18 synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102754846A CN103354325A (en) | 2013-07-03 | 2013-07-03 | Method for changing load switch in on-load manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102754846A CN103354325A (en) | 2013-07-03 | 2013-07-03 | Method for changing load switch in on-load manner |
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| CN103354325A true CN103354325A (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102754846A Pending CN103354325A (en) | 2013-07-03 | 2013-07-03 | Method for changing load switch in on-load manner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531586A (en) * | 2020-12-07 | 2021-03-19 | 国网上海市电力公司 | Working method for electrically disconnecting lead by insulating short rod bridging method |
| CN114123031A (en) * | 2021-11-25 | 2022-03-01 | 国网安徽省电力有限公司合肥供电公司 | Mobile on-column load switch rapid access method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819126A (en) * | 1994-06-29 | 1996-01-19 | East Japan Railway Co | High-pressure gas switch board |
| CN101931172A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Electric debugging method of dry-quenching power distribution system |
| CN102394484A (en) * | 2011-12-12 | 2012-03-28 | 辽宁省电力有限公司锦州供电公司 | Method for replacing isolating switch with 10kV load |
| CN202586124U (en) * | 2012-05-30 | 2012-12-05 | 广州供电局有限公司 | Bypass operation trolley capable of being used to replace distribution transformer without cutting off power |
-
2013
- 2013-07-03 CN CN2013102754846A patent/CN103354325A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0819126A (en) * | 1994-06-29 | 1996-01-19 | East Japan Railway Co | High-pressure gas switch board |
| CN101931172A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Electric debugging method of dry-quenching power distribution system |
| CN102394484A (en) * | 2011-12-12 | 2012-03-28 | 辽宁省电力有限公司锦州供电公司 | Method for replacing isolating switch with 10kV load |
| CN202586124U (en) * | 2012-05-30 | 2012-12-05 | 广州供电局有限公司 | Bypass operation trolley capable of being used to replace distribution transformer without cutting off power |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531586A (en) * | 2020-12-07 | 2021-03-19 | 国网上海市电力公司 | Working method for electrically disconnecting lead by insulating short rod bridging method |
| CN114123031A (en) * | 2021-11-25 | 2022-03-01 | 国网安徽省电力有限公司合肥供电公司 | Mobile on-column load switch rapid access method |
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| C06 | Publication | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Qingfeng Inventor after: Ma Ping Inventor after: Hou Kewen Inventor after: Wu Yong Inventor before: Liu Qingfeng Inventor before: Ma Ping Inventor before: Hou Kewen Inventor before: Gang Hong Inventor before: Qiu Peng Inventor before: Wu Yong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU QINGFENG MA PING HOU KEWEN GANG HONG QIU PENG WU YONG TO: LIU QINGFENGMA PING HOU KEWEN WU YONG |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20131016 |