CN103532096B - 10kV feeder protection equipments, which do not have a power failure, eliminates defect method - Google Patents

10kV feeder protection equipments, which do not have a power failure, eliminates defect method Download PDF

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Publication number
CN103532096B
CN103532096B CN201310491391.7A CN201310491391A CN103532096B CN 103532096 B CN103532096 B CN 103532096B CN 201310491391 A CN201310491391 A CN 201310491391A CN 103532096 B CN103532096 B CN 103532096B
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China
Prior art keywords
protection
former
stand
contact
defect
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CN201310491391.7A
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CN103532096A (en
Inventor
郑南章
曾麟
余志强
闫晓丽
曾锦松
陈彩凤
阮詩峰
蒋隆纤
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State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Xiamen Power Supply Co of State Grid Fujian Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Xiamen Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Priority to CN201310491391.7A priority Critical patent/CN103532096B/en
Publication of CN103532096A publication Critical patent/CN103532096A/en
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Abstract

The present invention relates to a kind of feeder protection equipment defect elimination method; particularly a kind of 10kV feeder protection equipments, which do not have a power failure, eliminates defect method; when needing to carry out power failure defect processing for 10kV route protections; by the way of devices at full hardware is substituted; by to the Current Voltage loop of protection device is using double loop and connects mode by original protection and carries out duplicate system retrofit, operating 10kV feeder lines are protected by stand-by protection substitutes original operating protection device;So as to by operating former protection device with by stand-by protection device for backed off after random run; after the completion for the treatment of that defect elimination works; original protection device is put into operation by duplicate system retrofit again; without by the 10kV feeder line power failure work; ensure working line in the state of protection is not lost; realize the defect elimination that do not have a power failure of 10kV protection devices, simple, convenient, efficiency high and improve circuit reliability.

Description

10kV feeder protection equipments, which do not have a power failure, eliminates defect method
Technical field
The present invention relates to a kind of feeder protection equipment defect elimination method, particularly a kind of 10kV feeder protection equipments, which do not have a power failure, to disappear Except defect method.
Background technology
In network system, 10kV circuits carry the task to the direct power transmission of user, therefore, for stopping for 10kV circuits The reliability of electric time and 10kV protections has strict requirements.In the prior art, when 10kV protection devices break down, it is necessary to Carry out power failure abatement apparatus defect(Hereinafter referred to as defect elimination), it is necessary to power failure work is carried out to 10kV protection devices, this requires to carry The last week applies for this 10kV line outages, one to two day in advance preparation service kit and data, and in whole protection device Have in defect elimination power off time a big chunk time be for operation maintenance personnel to the power failure electrical verifications of 10kV circuits work and Power transmission work after the completion of defect elimination work, cumbersome, preparation is more, inefficiency, and once has a power failure, and user will be produced Raw considerable influence, reduces the reliability of supplying power allocation.
The content of the invention
There is provided a kind of simple to operate, efficiency high it is an object of the invention to overcome in place of the deficiencies in the prior art, need not The 10kV feeder protection equipments of power failure, which do not have a power failure, eliminates defect method.
The purpose of the present invention is realized by following approach:
10kV feeder protection equipments, which do not have a power failure, eliminates defect method, and it is characterized by, and comprises the following steps:
(1)The former protection device of 10kV feeder lines and a set of stand-by protection device, the control loop of stand-by protection device, electricity are provided Current voltage loop, breaker and electric current secondary loop and voltage secondary circuit are identical with former protection device;
(2)Former protection device is drawn from 10kV terminal blocks connects electric current, voltage, the position of breaker and divide-shut brake contact;
(3)By the tripping operation contact of stand-by protection device, combined floodgate contact and circuit breaker position contact and access former protection dress Put in the link circuit with terminal block, with the tripping operation contact, combined floodgate contact and circuit breaker position contact of former protection device one by one Correspondence;
(4)Further positive-negative power+the KM ,-KM of stand-by protection device are introduced from terminal block via air switch, now Stand-by protection device and the power supply of former protection device are separate, but are derived from same source;
(5)The electric current secondary loop of stand-by protection device, voltage secondary circuit are arranged by conversion terminal again and original is accessed In the corresponding secondary circuit of protection device, now former protection device and stand-by protection device are in running status;
(6)Disconnect the power supply wiring switch of former protection device, the contact that then tripped, combined floodgate contact, circuit breaker position Contact and electric current secondary loop, voltage secondary circuit and operating terminal block are all off, exit former protection device;
(7)Abatement apparatus defect is carried out to former protection device, then reversely according to step(6)To step(3)With opposite Operation is until return to step(2)Former protection device after defect elimination is accessed into terminal block, and exits stand-by protection device, completion does not stop Electric abatement apparatus defect work.
The purpose of the present invention is when needing to carry out power failure defect processing for 10kV route protections, using side of the present invention Method, by operating former protection device with being run by stand-by protection device for backed off after random, without the 10kV feeder lines are had a power failure Work, improves circuit reliability, its principle is specially:By the way of devices at full hardware is substituted, pass through the electric current to protection device Voltage circuit is using double loop and connects mode by original protection progress duplicate system retrofit, and the control loop to protection device is employed Key tripping operation closing circuit and connect, tripping operation that protection device correct operation is needed, close a floodgate output contact, and switch this The trip position contact of body introduces stand-by protection device, it is out of service in protection, substituted by stand-by protection original operating Protection device protects operating 10kV feeder lines;Then defect elimination work is carried out to the original protection exited, treats that defect elimination has worked Cheng Hou, then original protection device is put into operation by duplicate system retrofit, it is ensured that working line in the state of protection is not lost, Realize the defect elimination that do not have a power failure of 10kV protection devices.
The present invention is applied multiple times in practice, and the application of the defect elimination that do not have a power failure new method significantly shorten 10kV The defect elimination time of route protection, Reliability of Power Supplying Net Work is improved, when efficiently solving to customer outage hours and elimination of equipment defect Between contradiction, for power network top-tier customer service provide it is strong ensure;So that needing 2 operations staff's operation licenses originally The work change that could be carried out greatly has been liberated labour and alleviated into the work that phone license can just be completed is only needed to Contradiction between safety in production and personnel are in short supply, is that the defect elimination plan of power transformation Yun Jian departments is arranged in order, power network adequate logistic support is provided Effective support.Meanwhile, by theory analysis and practical application, the safety and reliability of the technological achievement is also demonstrate,proved It is real.
Brief description of the drawings
Fig. 1 show the connection diagram of former protection device and terminal block before defect elimination, is wherein former protection dress in dotted line frame The inside principle assumption diagram put;
Fig. 2 show the simplification connection diagram of former protection device and terminal block;
Fig. 3 show the principle that stand-by protection device and former protection device during defect elimination of the present invention are operated together Figure;
Fig. 4 show the simplification connection that stand-by protection device and former protection device during the defect elimination be operated together and shown It is intended to;
After the former protection device that Fig. 5 show is exited, the simplification connection diagram of stand-by protection device and terminal block.
Embodiment
The present invention is described further with reference to embodiment.
10kV feeder protection equipments, which do not have a power failure, eliminates defect method, comprises the following steps:
(1)The former protection device of 10kV feeder lines and a set of stand-by protection device, the control loop of stand-by protection device, electricity are provided Current voltage loop, breaker and electric current secondary loop and voltage secondary circuit are identical with former protection device;
(2)Referring to the drawings 1 and accompanying drawing 2, former protection device draws the position for connecing electric current, voltage, breaker from 10kV terminal blocks Put and divide-shut brake contact;The essential core of former protection device uses RCS_9611C processing units;
(3)Referring to accompanying drawing 3 and accompanying drawing 4, by the tripping operation contact 107, combined floodgate contact 109 and breaker of stand-by protection device Position contact 137 is simultaneously accessed in the link circuit of former protection device and terminal block, and the tripping operation contact, combined floodgate with former protection device connect Point and circuit breaker position contact are corresponded;
(4)Further positive-negative power+the KM ,-KM of stand-by protection device are introduced from terminal block via air switch, now Stand-by protection device and the power supply of former protection device are separate, but are derived from same source;
(5)The electric current secondary loop of stand-by protection device, voltage secondary circuit are arranged by conversion terminal again and original is accessed In the corresponding secondary circuit of protection device, now former protection device and stand-by protection device are in running status;
(6)Disconnect the power supply wiring switch of former protection device, the contact 107 that then tripped, combined floodgate contact 109, open circuit Device position contact 137 and electric current secondary loop, voltage secondary circuit and operating terminal block are all off, exit former protection Device, is shown in accompanying drawing 5;
(7)Abatement apparatus defect is carried out to former protection device, then reversely according to step(6)To step(3)With opposite Operation is until return to step(2)Former protection device after defect elimination is accessed into terminal block, and exits stand-by protection device, completion does not stop Electric abatement apparatus defect work.
The principle explanation of the present invention:
By the way of generation by new equipment, duplicate system retrofit is carried out to original operating 10kV protection for feed line first, 10kV protection for feed line in out of service again, by stand-by protection, to substitute original operating protection device operating to protect 10kV feeder lines;Then defect elimination work is carried out to original protection for exiting, after the completion for the treatment of defect elimination, then original protection device is put into transported OK, duplicate system retrofit is realized again;Finally, standby protection device is exited, then 10kV feeder lines are protected by original protection device.
Technical key point and difficult point also include:
1. the Current Voltage loop of pair protection device employs double loop and connects mode.
It is that 2. the control loop of pair protection device employs crucial tripping operation closing circuit and connect, by the positive positive motion of protection device The tripping operation making to need, close a floodgate output contact, and the trip position contact of switch itself introduces stand-by protection device.
3. the power supply of the stand-by protection device of pair input employs the mode that connecting terminal arranges power supply of drawing, prevent that transformer station from stopping Protection device dead electricity caused by electric.Because the power supply in terminal block is to provide dc source by the batteries of transformer station in itself, Therefore also can bio-occlusion protection device offer power supply when transformer station has a power failure.
4. arrangement is optimized in the wiring of pair stand-by protection, and has made omnipotent line bank, so as to stand-by protection device It can be suitably used for the duplicate system retrofit access of various types of protection.
5. for signal communication problem of the protection device in alternative Process, employ transfer netting twine method to realize protection It is normal that device is communicated.
The not described part of the present invention is same as the prior art.

Claims (1)

1.10kV feeder protection equipments, which do not have a power failure, eliminates defect method, it is characterised in that comprise the following steps:
(1)The former protection device of 10kV feeder lines and a set of stand-by protection device, the control loop of stand-by protection device, voltage electricity are provided Flow back to road, breaker and electric current secondary loop and voltage secondary circuit identical with former protection device;
(2)Former protection device is drawn from 10kV terminal blocks connects electric current, voltage, the position of breaker and divide-shut brake contact;
(3)By the tripping operation contact of stand-by protection device, combined floodgate contact and circuit breaker position contact and access former protection device with In the link circuit of terminal block, corresponded with the tripping operation contact, combined floodgate contact and circuit breaker position contact of former protection device;
(4)Further positive-negative power+the KM ,-KM of stand-by protection device are introduced from terminal block via air switch, it is now standby The power supply of protection device and former protection device is separate, but is derived from same source;
(5)The electric current secondary loop of stand-by protection device, voltage secondary circuit are arranged by conversion terminal again and former protection is accessed In the corresponding secondary circuit of device, now former protection device and stand-by protection device are in running status;
(6)Disconnect the power supply wiring switch of former protection device, the contact that then tripped, combined floodgate contact, circuit breaker position contact And electric current secondary loop, voltage secondary circuit and operating terminal block it is all off, exit former protection device;
(7)Abatement apparatus defect is carried out to former protection device, then reversely according to step(6)To step(3)In a reverse operation Until return to step(2)Former protection device after defect elimination is accessed into terminal block, and exits stand-by protection device, completion, which does not have a power failure, to disappear Except equipment deficiency work.
CN201310491391.7A 2013-10-18 2013-10-18 10kV feeder protection equipments, which do not have a power failure, eliminates defect method Active CN103532096B (en)

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CN103532096B true CN103532096B (en) 2017-07-18

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103825259B (en) * 2014-03-19 2017-09-08 江苏沙洲电气有限公司 Relay protection system
CN105021853B (en) * 2014-04-29 2018-01-05 国网山西省电力公司电力科学研究院 Adjustable jump closes the fast of time and tests analog switch device conscientiously
CN109581136A (en) * 2017-09-29 2019-04-05 上海宝钢工业技术服务有限公司 Current loop charges the anti-open circuit set of disjunction and method
CN108594072A (en) * 2018-04-19 2018-09-28 广东电网有限责任公司 A kind of 10kV line protective devices do not have a power failure periodical inspection method
CN110492450A (en) * 2019-09-03 2019-11-22 国网河北省电力有限公司 A kind of 35kV and the interim back-up protection instrument of following route protection defect elimination
CN110932227B (en) * 2019-12-11 2022-03-01 国网河北省电力有限公司邯郸市肥乡区供电分公司 Method for replacing protection device without power outage
CN112003249A (en) * 2020-07-20 2020-11-27 国网山东省电力公司鄄城县供电公司 Defect eliminating matching device and system

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CN202474613U (en) * 2012-02-29 2012-10-03 南京南瑞继保电气有限公司 Portable microcomputer protecting device
CN102832709A (en) * 2012-08-07 2012-12-19 邯郸供电公司 Comprehensive protection management machine of intelligent substation spacer layer
CN103001213A (en) * 2011-09-13 2013-03-27 辽宁省电力有限公司本溪供电公司 Continuous power supplying guarantee device for power supply
CN103151762A (en) * 2012-07-10 2013-06-12 南京南瑞继保电气有限公司 Differential protection method of non-power-cut line replacing operation of by-pass switch

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CN102280864A (en) * 2011-08-10 2011-12-14 江苏省电力公司苏州供电公司 Post-failure live treatment method for protection device of distribution network system and portable protection device
CN103001213A (en) * 2011-09-13 2013-03-27 辽宁省电力有限公司本溪供电公司 Continuous power supplying guarantee device for power supply
CN202474613U (en) * 2012-02-29 2012-10-03 南京南瑞继保电气有限公司 Portable microcomputer protecting device
CN103151762A (en) * 2012-07-10 2013-06-12 南京南瑞继保电气有限公司 Differential protection method of non-power-cut line replacing operation of by-pass switch
CN102832709A (en) * 2012-08-07 2012-12-19 邯郸供电公司 Comprehensive protection management machine of intelligent substation spacer layer

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