CN101246783A - Intelligent locking method of outdoor looped network cabinet wire spacing ground switch - Google Patents
Intelligent locking method of outdoor looped network cabinet wire spacing ground switch Download PDFInfo
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- CN101246783A CN101246783A CNA2008100198430A CN200810019843A CN101246783A CN 101246783 A CN101246783 A CN 101246783A CN A2008100198430 A CNA2008100198430 A CN A2008100198430A CN 200810019843 A CN200810019843 A CN 200810019843A CN 101246783 A CN101246783 A CN 101246783A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012795 verification Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 239000000284 extract Substances 0.000 claims description 6
- 230000000505 pernicious effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The invention relates to an intelligent locking method for an outdoor switchgear incoming line gap earthing switch, comprising the steps that: (1) outcoming line signals or incoming line signals from the cables in all phases of the outdoor switchgear are extracted; (2) the extracted signals are transmitted to an independent electroscope having a working power; (3) the electroscope controls the normally open contact movement of the relay as an electric testing interface, according to the outcoming line signals or incoming signals of the cables in all phases, and outputs the signal indicating whether the cables are electrified or not by the make and break of a relay contact; and (4) a computer key and the relay contract are connected, the computer key makes a logic judgment for the acquired electric testing signal to determine whether to open the computer locking lockset of an earthing knife switch or not.
Description
Technical field
The present invention relates to a kind of intelligent locking method of outdoor looped network cabinet wire spacing ground switch, belong to the blocking method of the outdoor metal enclosed looped network switch apparatus in power matching network field.
Background technology
The outdoor ring main unit of 10kV uses in the distribution supply network in city in a large number because it is simple and reliable.Have mechanical anti-misoperation apparatus between the on-load switch of outdoor ring main unit and the ground connection plug-in strip, this error-proof device is reliably to prevent various misoperations during inlet wire on the ring main unit power supply out of doors.But because ring network power supply and hand-in-hand network connection mode, when the inlet wire interval of ring main unit or the interconnection between ring main unit, power supply is following inlet wire, and the error-proof device of outdoor ring main unit itself just can not prevent the pernicious misoperation of charged splice grafting ground plug-in strip at this moment.Therefore need the operation of ground connection plug-in strip is controlled, promptly whether when the on-load switch separating brake, must differentiate cable outlet or long cable section of ingoing line has electricity, has only under the not charged situation of cable just to allow splice grafting ground plug-in strip.Traditional method for preventing misoperation has two kinds, a kind ofly carries out the anti-misoperation locking of ground connection plug-in strip with electromagnet, but because outdoor ring main unit does not have power supply, implements inconvenience, also will consider the long-term charged situation of electromagnet simultaneously.Therefore the ground connection plug-in strip padlock of great majority to outdoor ring main unit when the operational grounding plug-in strip, carries out artificial cognition by operating personnel, carries out the plug-in strip operation of splice grafting ground when cable does not have electricity after release.Because outdoor ring main unit is full-enclosed structure, whether the cabinet inner cable has high-tension electricity, be to rely on the high-voltage potential indicator that is installed on the outdoor ring main unit panel to indicate, and indicating device only can be beautiful as a kind of high caution that is pressed with the signal of telecommunication, can not carry out mechanical interlocking with the cabinet lock, therefore whether the high-voltage charge display device demonstration is correct, can not have or not the accurate criterion of electricity as outdoor ring main unit inner cable.
Summary of the invention
The purpose of this invention is to provide a kind of easy to operately, can reliably prevent the intelligent locking method of the outdoor looped network cabinet wire spacing ground switch of charged splice grafting ground plug-in strip misoperation.
The present invention is that the technical scheme that achieves the above object is: a kind of intelligent locking method of outdoor looped network cabinet wire spacing ground switch is characterized in that:
(1), extracts outlet signal or inlet wire signal each the phase cable in outdoor ring main unit;
The electroscope that each phase cable outlet signal that (2), will extract or inlet wire signal are delivered to an independence and had working power;
(3), electroscope is according to each phase cable outlet signal or inlet wire signal, as its a pair of normally opened contact action of relay of electrical verification interface, the signal whether each phase cable in the outdoor ring main unit is charged is by the switching output of relay contact on the control electroscope;
(4), the contact of computer key and relay joins, computer key carries out logic determines to the electrical verification signal that obtains, whether decision opens the computer locking lockset of ground connection plug-in strip.
After the present invention adopts technique scheme, can in outdoor ring main unit, will be input to from the signal of telecommunication that cable is obtained the electroscope by electroscope, drive a pair of normally opened contact action of galvanoscopic relay, because this is to the contact and as the electrical verification interface, therefore electron key inserts on this electrical verification interface, can signal that can whether each phase cable in the outdoor ring main unit is charged comes output signal by the switching of relay contact, provide criterion accurately for carrying out lock operation.When any phase cable did not have electricity, electron key inserted the electrical verification interface, and electroscope output closed solution lock signal carries out unlocking operation; And any phase cable is when having high-tension electricity, then electroscope output disconnects block signal, therefore unblank to provide foundation by the operating state conduct of galvanoscopic electrical verification interface, on the whole operation program, method of operation realizes simple, and does not need manual intervention to work automatically under the normal condition, makes the whole anti-error system of outdoor ring main unit be able to perfect, effectively the generation of the pernicious misoperation fault of the charged splice grafting of control ground plug-in strip improves the distribution safe and reliable operation.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is a logic diagram of the present invention.
Embodiment
See shown in Figure 1ly, the intelligent locking method of outdoor looped network cabinet wire spacing ground switch of the present invention at first extracts outlet signal or inlet wire signal each the phase cable in outdoor ring main unit; Each the phase cable outlet signal or the inlet wire signal that extract are delivered to an independently electroscope, electroscope has independently working power, this electroscope is according to each phase cable outlet signal or inlet wire signal, the a pair of normally opened contact action of relay in the control electroscope, the a pair of normally opened contact of this relay is as the electrical verification interface, whether charged signal passes through the logical of relay contact with each phase cable in the outdoor ring main unit, disconnected output, when the contact of computer key and relay joins, computer key carries out logic determines to the electrical verification signal that obtains, whether decision opens the computer locking lockset of ground connection plug-in strip, when high-voltage signal output is arranged at any phase cable outlet or long cable section of ingoing line, then its normally opened contact of the relay on the electroscope maintains the original state, judge after computer key and this contact join that outdoor ring main unit has electricity, the computer locking lockset of ground connection plug-in strip can not be opened.When any phase cable outlet or long cable section of ingoing line do not have the signal of telecommunication, the power turn-on relay on the electroscope then, make the normally opened contact closure of relay, after joining, computer key and this contact judge that this open air ring main unit does not have, pass through logic determines, whether open the computer locking lockset of corresponding ground connection plug-in strip, owing to store the coding of each outdoor ring main unit and the coding of each ground connection plug-in strip locking lockset in the computer key, therefore have only when computer key judges that outdoor ring main unit does not have electricity, and the outdoor ring main unit of selecting required release is encoded and the coding of ground connection plug-in strip computer locking lockset is down corresponding one by one, condition meets computer key and unties computer locking lockset, carry out the operation of ground connection plug-in strip, above-mentioned computer key and computer lockset are the commercially available prod.The present invention is installed on the on-the-spot outdoor ring main unit easily owing to need not change the mode of connection, can reduce the generation of pernicious misoperation fault greatly, has guaranteed the distribution safe and stable operation.
Claims (4)
1, a kind of intelligent locking method of outdoor looped network cabinet wire spacing ground switch is characterized in that:
(1), extracts outlet signal or inlet wire signal each the phase cable in outdoor ring main unit;
The electroscope that each phase cable outlet signal that (2), will extract or inlet wire signal are delivered to an independence and had working power;
(3), electroscope is according to each phase cable outlet signal or inlet wire signal, as its a pair of normally opened contact action of relay of electrical verification interface, the signal whether each phase cable in the outdoor ring main unit is charged is by the switching output of relay contact on the control electroscope;
(4), the contact of computer key and relay joins, computer key carries out logic determines to the electrical verification signal that obtains, whether decision opens the computer locking lockset of ground connection plug-in strip.
2, the intelligent locking method of outdoor looped network cabinet wire spacing ground switch according to claim 1, it is characterized in that: when any phase cable outlet or long cable section of ingoing line have high-voltage signal output, its normally opened contact of galvanoscopic relay maintains the original state, computer key and this contact join and judge that outdoor ring main unit has electricity, and the computer locking lockset of ground connection plug-in strip can not be opened.
3, the intelligent locking method of outdoor looped network cabinet wire spacing ground switch according to claim 1, it is characterized in that: when any phase cable outlet or long cable section of ingoing line do not have the signal of telecommunication, galvanoscopic working power turn-on relay, the normally opened contact closure of relay, computer key and this contact join and judge that outdoor ring main unit does not have, by logic determines, open the computer locking lockset of corresponding ground connection plug-in strip.
4, according to the intelligent locking method of the described outdoor looped network cabinet wire spacing ground switch of one of claim 1 to 3, it is characterized in that: store the coding of each outdoor ring main unit and the coding of each ground connection plug-in strip locking lockset in the described computer key, select at computer key under the encoding condition correspondence of the outdoor ring main unit coding of required release and ground connection plug-in strip computer locking lockset, computer key is untied computer locking lockset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810019843 CN101246783B (en) | 2008-03-19 | 2008-03-19 | Intelligent locking method of outdoor looped network cabinet wire spacing ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810019843 CN101246783B (en) | 2008-03-19 | 2008-03-19 | Intelligent locking method of outdoor looped network cabinet wire spacing ground switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101246783A true CN101246783A (en) | 2008-08-20 |
| CN101246783B CN101246783B (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810019843 Expired - Fee Related CN101246783B (en) | 2008-03-19 | 2008-03-19 | Intelligent locking method of outdoor looped network cabinet wire spacing ground switch |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472795A (en) * | 2013-09-11 | 2013-12-25 | 江苏永钢集团有限公司 | Device and method for reducing instrument control mistaken interlocking |
| CN103594262A (en) * | 2013-11-29 | 2014-02-19 | 国家电网公司 | Control system and method for grounding knife switch of lines of switchgear |
| CN106972489A (en) * | 2017-05-16 | 2017-07-21 | 国网山东省电力公司菏泽供电公司 | The positive and negative two-way anti-misoperation system of ring network power supply |
| CN107069719A (en) * | 2017-05-16 | 2017-08-18 | 华电北瑞电气(北京)有限公司 | A kind of ring network power supply anti-misoperation system |
| CN108320983A (en) * | 2018-02-08 | 2018-07-24 | 南京乾鑫电器设备有限公司 | Electronic type ring main unit earthing switch multiple protector and control method |
| CN108461329A (en) * | 2018-03-05 | 2018-08-28 | 珠海优特电力科技股份有限公司 | Anti-misoperation apparatus and its working method |
| CN108629879A (en) * | 2018-06-08 | 2018-10-09 | 广东电网有限责任公司 | A kind of dual tripper of switchgear anti-misoperation |
-
2008
- 2008-03-19 CN CN 200810019843 patent/CN101246783B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472795A (en) * | 2013-09-11 | 2013-12-25 | 江苏永钢集团有限公司 | Device and method for reducing instrument control mistaken interlocking |
| CN103594262A (en) * | 2013-11-29 | 2014-02-19 | 国家电网公司 | Control system and method for grounding knife switch of lines of switchgear |
| CN106972489A (en) * | 2017-05-16 | 2017-07-21 | 国网山东省电力公司菏泽供电公司 | The positive and negative two-way anti-misoperation system of ring network power supply |
| CN107069719A (en) * | 2017-05-16 | 2017-08-18 | 华电北瑞电气(北京)有限公司 | A kind of ring network power supply anti-misoperation system |
| CN106972489B (en) * | 2017-05-16 | 2023-10-27 | 国网山东省电力公司菏泽供电公司 | Forward and reverse looped network power supply bidirectional misoperation prevention system |
| CN107069719B (en) * | 2017-05-16 | 2024-02-13 | 华电北瑞电气(北京)有限公司 | Looped network power supply misoperation prevention system |
| CN108320983A (en) * | 2018-02-08 | 2018-07-24 | 南京乾鑫电器设备有限公司 | Electronic type ring main unit earthing switch multiple protector and control method |
| CN108320983B (en) * | 2018-02-08 | 2024-02-09 | 南京乾鑫电器设备有限公司 | Electronic ring main unit grounding switch multiple protection device and control method |
| CN108461329A (en) * | 2018-03-05 | 2018-08-28 | 珠海优特电力科技股份有限公司 | Anti-misoperation apparatus and its working method |
| CN108629879A (en) * | 2018-06-08 | 2018-10-09 | 广东电网有限责任公司 | A kind of dual tripper of switchgear anti-misoperation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101246783B (en) | 2010-06-30 |
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Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20120918 |
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Effective date of registration: 20120918 Address after: 213003 No. 27, West Front Street, Changzhou, Jiangsu Patentee after: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 213003 No. 27, West Front Street, Changzhou, Jiangsu Patentee before: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. |
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Granted publication date: 20100630 Termination date: 20170319 |
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