CN103490320A - Misoperation prevention device of high-voltage switch cabinet - Google Patents
Misoperation prevention device of high-voltage switch cabinet Download PDFInfo
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- CN103490320A CN103490320A CN201310459454.0A CN201310459454A CN103490320A CN 103490320 A CN103490320 A CN 103490320A CN 201310459454 A CN201310459454 A CN 201310459454A CN 103490320 A CN103490320 A CN 103490320A
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Abstract
The invention discloses a misoperation prevention device of a high-voltage switch cabinet. Five-prevention locks are arranged on a handcart of a middle handcart breaker in the high-voltage switch cabinet and a grounding switch operation mechanism in the high-voltage switch cabinet respectively, and therefore mechanical interlocking is achieved between superior switch cabinets and subordinate switch cabinets and between peer switch cabinets. The device can be used alone and can also be combined with an existing electrical interlock for use, therefore, the reliability of interlocking is improved, and security accidents caused by misoperation can be effectively prevented. The misoperation prevention device has the advantages that the misoperation prevention function is achieved between the superior switch cabinets and the subordinate switch cabinets and between the peer switch cabinets through mechanical interlocking, failure of the electrical interlock caused by power losing or environmental influences or quality causes is avoided, and the misoperation prevention device is simple in structure, low in cost, reliable in performance and remarkable in effect.
Description
Technical field
The present invention relates to the anti-misoperation apparatus of high voltage electric equipment, specifically a kind of anti-misoperation apparatus of high-tension switch cabinet.
Background technology
High voltage electric equipment is in operation and maintenance process, and misoperation may cause serious security incident.To this, " preventing electric misoperation device management regulation " (No. (1990) 1110, the energy security) of the issue of former Ministry of Energy explicitly calls for: all high voltage electric equipments that likely causes misoperation, all should install error-proof device.Error-proof device should be realized following functions (being called for short five prevents): (one) prevents that mistake from dividing, mistake is closed circuit breaker; (2) prevent that on-load from drawing, closing isolating switch; (3) prevent from being with cable address splice grafting ground wiretap; (4) prevent from being with the earth connection switch to close disconnector; (5) prevent mistakenly entering charged chamber.
Five anti-functions are the basic demands to high voltage electric equipment, for realizing this function, traditional technological means is: separate unit switch cubicle self adopts mechanical interlocking or electrical interlock or two kinds of interlock methods to merge and uses, and between the superior and the subordinate and switch cubicle at the same level, adopts electrical interlock.Adopt electrical interlock between the superior and the subordinate and switch cubicle at the same level, reliability is poor, is mainly manifested in following several respects:
1, secondary circuit failure dead electricity, will directly cause the electrical interlock can't release;
2, the Quadratic Finite Element device of realizing the electrical interlock function is subject to the such environmental effects such as high temperature, condensation, can cause electrical interlock malfunctioning;
3, the Quadratic Finite Element device of realizing the electrical interlock function breaks down because of the sole mass reason, can cause electrical interlock malfunctioning.
As a kind of mandatory hard locking, the reliability of mechanical interlocking is apparently higher than electrical interlock.The 5.11st clear of GB3906-2006 " 3.6kV～40.5kV ac metal closing switch gear and control appliance ": " in order to protect and convenient operation, between the different elements of equipment, should install interlocking.When design, should pay the utmost attention to mechanical interlocking ".
Summary of the invention
The anti-misoperation apparatus that the purpose of this invention is to provide a kind of high-tension switch cabinet, realize mechanical interlocking between the superior and the subordinate.
The technical scheme that realizes purpose of the present invention is as follows: a kind of anti-misoperation apparatus of high-tension switch cabinet, and described high-tension switch cabinet comprises two breaker cabinets that structure is identical, and one of them is higher level's breaker cabinet, and another is the lead-in circuit breaker cabinet; Described breaker cabinet is provided with handcart type breaker and earthed switch, also is provided with interlock, and earthed switch is hinged to the connecting lever of interlock, and the operation slide plate of interlock is movably arranged on the chute of cabinet; Handcart locking Dingan County is contained on the handcart of handcart type breaker; Baffle plate has two orthogonal sides, is fixedly mounted on cabinet, is positioned at by handcart; When handcart moves in the situation of test position and handcart locking lock, the dead bolt of handcart lock stretches out from lock body, and a side of baffle plate stops that dead bolt can not move to service position handcart; In the situation that handcart lock is opened, the dead bolt of handcart lock is retracted into lock body, and handcart enters into service position, and another side of baffle plate stops that dead bolt makes the handcart lock can not locking; Earthed switch locking Dingan County is contained on cabinet, is positioned at by the operation slide plate; When make grounding switch tripping and operation slide plate upward sliding by interlock after, and in the situation of earthed switch locking lock, the dead bolt of earthed switch lock stretches out from lock body, and bolt blocks operation slide plate makes it can not down sliding, stops by interlock earthed switch is closed a floodgate; In the situation that earthed switch lock is opened, the dead bolt of earthed switch lock is retracted into lock body, and after making to operate slide plate down sliding and earthed switch and close a floodgate by interlock, the operation slide plate stops that the dead bolt of earthed switch lock makes the earthed switch lock can not locking; The handcart lock of higher level's breaker cabinet and the earthed switch lock of lead-in circuit breaker dispose first key jointly, and the earthed switch lock of higher level's breaker cabinet and the handcart lock of lead-in circuit breaker dispose second key jointly; The mechanical interlocking that the model that described handcart lock and earthed switch lock select the safe international corporation of Castell to produce is K-FSB-6.4-1; The interlocking device of ground switch operating mechanism that the model that described interlock selects Jiangshan Senyuan Electronic Co., Ltd. to produce is 5XS.577.1002.1.
Further, high-tension switch cabinet also comprises a busbar grounding and PT cabinet (busbar grounding and voltage transformer cabinet): be provided with earthed switch, also be provided with interlock, earthed switch is hinged to the connecting lever of interlock, and the operation slide plate of interlock is movably arranged on the chute of cabinet; Earthed switch locking Dingan County is contained on cabinet, is positioned at by the operation slide plate; When make grounding switch tripping and operation slide plate upward sliding by interlock after, and in the situation of earthed switch locking lock, the dead bolt of earthed switch lock stretches out from lock body, and bolt blocks operation slide plate makes it can not down sliding, stops by interlock earthed switch is closed a floodgate; In the situation that earthed switch lock is opened, the dead bolt of earthed switch lock is retracted into lock body, and after making to operate slide plate down sliding and earthed switch and close a floodgate by interlock, the operation slide plate stops that the dead bolt of earthed switch lock makes the earthed switch lock can not locking; The key of the earthed switch lock configuration of described busbar grounding and PT cabinet is the second key; The mechanical interlocking that the model that described earthed switch lock selects the safe international corporation of Castell to produce is K-FSB-6.4-1; The interlocking device of ground switch operating mechanism that the model that described interlock selects Jiangshan Senyuan Electronic Co., Ltd. to produce is 5XS.577.1002.1.
In the present invention, higher level's breaker cabinet is used to the lead-in circuit breaker cabinet of subordinate to carry primary power source, and the primary power source that the lead-in circuit breaker cabinet of subordinate is used for receiving higher level's breaker cabinet and provides is also this section bus and PT cabinet and feeder cabinet power supply.The superior and the subordinate's anti-misoperation basic demand is: after the handcart circuit breaker of higher level's breaker cabinet enters service position, forbid that the earthed switch of the lead-in circuit breaker cabinet of subordinate closes a floodgate; The earthed switch of the lead-in circuit breaker cabinet of subordinate, under "on" position, forbids that the handcart type breaker of higher level's breaker cabinet enters service position.Busbar grounding and PT cabinet for measuring this section primary circuit voltage, for this section second protection provides secondary voltage, absorb this section overvoltage, and the busbar grounding during main bus bar maintenance.Anti-misoperation basic demand at the same level is: the handcart type breaker of this section lead-in circuit breaker cabinet, after entering service position, forbids that the earthed switch of busbar grounding and PT cabinet closes a floodgate.The present invention has adopted the mode at higher level's breaker cabinet, lead-in circuit breaker cabinet and busbar grounding and PT cabinet make-up machinery interlocking to reach above-mentioned fool proof requirement.The mechanical interlocking that model is K-FSB-6.4-1, two locks or many locks only configure a key, and after using key operated wherein any lock, key can not be pulled out, and only has just can extract key remove out other lock after locking.In addition, the handcart type breaker of same breaker cabinet inside and the interlocking between earthed switch, the interlocking of earthed switch and cable vault's door-plate, all realize by interlocking device of ground switch operating mechanism.
Technique effect of the present invention is: utilize mechanical interlocking to realize the anti-misoperation function between the switch cubicle of the superior and the subordinate's switch cubicle and peer, avoided electrical interlock because of dead electricity, environmental impact or cause for quality cause malfunctioning, and simple in structure, cost is low, dependable performance, remarkably productive.Apparatus of the present invention both can be used separately, also can merge and use with original electrical interlock, thereby improve the reliability of interlocking, and effectively prevented the security incident caused because of misoperation.
The accompanying drawing explanation
Fig. 1 is the front view of breaker cabinet of the present invention.
Fig. 2 is the left view of breaker cabinet of the present invention.
Fig. 3 is that handcart of the present invention is locked in the schematic diagram under blocking.
Fig. 4 is that handcart of the present invention is locked in the schematic diagram under opening.
Fig. 5 is that earthed switch of the present invention is locked in the schematic diagram under blocking.
Fig. 6 is that earthed switch of the present invention is locked in the schematic diagram under opening.
1-breaker cabinet, 2-handcart lock, 3-operation slide plate, 4-earthed switch lock, 5-earthed switch, 6-baffle plate, 7-interlock, 8-key, 9-handcart.
Embodiment
As shown in Figure 1, Figure 2, Fig. 1 shows the position of breaker cabinet left-hand seat lock 2, operation slide plate 3 and earthed switch lock 4, and Fig. 2 shows the annexation of each parts.Higher level's breaker cabinet is identical with the structure of lead-in circuit breaker cabinet.Breaker cabinet 1 is provided with handcart type breaker and earthed switch 5, also is provided with interlock 7, and earthed switch 5 is hinged to the connecting lever of interlock 7, and the operation slide plate 3 of interlock 7 is movably arranged on the chute of cabinet; Handcart lock 2 is fixedly connected on the handcart 9 of handcart type breaker; Baffle plate 6 has two orthogonal sides, is fixedly mounted on cabinet, is positioned at handcart 9 other; Earthed switch lock 4 is fixedly mounted on cabinet, is positioned at operation slide plate 3 other.Fig. 3 shows and moves to test position and handcart is locked in the situation of 2 lockings when handcart 9, and the dead bolt of handcart lock 2 stretches out from lock body, and a side of baffle plate 6 stops that dead bolt can not move to service position handcart; Fig. 4 shows in the situations that handcart lock 2 is opened, and the dead bolt of handcart lock 2 is retracted into lock body, and handcart 9 enters into service position, and another side of baffle plate 6 stops that dead bolt makes the handcart lock 2 can not locking; Now key 8 can not be removed.Fig. 5 shows when make earthed switch 5 separating brakes and operation slide plate 3 upward slidings by interlock 7 after, and earthed switch is locked in the situation of 4 lockings, the dead bolt of earthed switch lock 4 stretches out from lock body, bolt blocks operation slide plate 3 makes it can not down sliding, stops by interlock 7 earthed switch 5 is closed a floodgate; Fig. 6 shows in the situation that earthed switch lock 4 is opened, the dead bolt of earthed switch lock 4 is retracted into lock body, after making to operate slide plate 3 down slidings and earthed switch 5 combined floodgates by interlock 7, operation slide plate 3 stops that the dead bolt of earthed switch lock 4 makes the earthed switch lock 4 can not locking, and now key 8 can not be removed.
The a set of mechanical interlocking of the common configuration of earthed switch lock of the handcart lock of higher level's breaker cabinet and lead-in circuit breaker cabinet, comprise two lock bodies and a key (the first key), the another set of mechanical interlocking of the common configuration of handcart lock of the earthed switch lock of higher level's breaker cabinet and lead-in circuit breaker cabinet, comprise two lock bodies and a key (the second key).
Busbar grounding and PT cabinet only arrange the earthed switch lock, and its mounting structure and higher level's breaker cabinet and lead-in circuit breaker cabinet are identical.The earthed switch lock of busbar grounding and PT cabinet, should configure a set of mechanical interlocking jointly with the earthed switch lock of higher level's breaker cabinet, the handcart lock of lead-in circuit breaker cabinet, comprises three lock bodies and a key (the second key).
The concrete use procedure of anti-misoperation apparatus is as follows:
A, outage maintenance implementation step:
1, the handcart type breaker separating brake of lead-in circuit breaker cabinet, handcart retreats to test position by service position;
2, the handcart type breaker separating brake of higher level's breaker cabinet, handcart retreats to test position by service position;
3, as overhauled higher level's breaker cabinet, carry out following steps: the handcart lock of locking lead-in circuit breaker cabinet, make the handcart of lead-in circuit breaker cabinet be locked in test position, can't push service position, take out the second key, open the earthed switch lock of higher level's breaker cabinet, the dead bolt of earthed switch lock is retracted in lock body, then the push slide plate, close a floodgate earthed switch by interlock.Now operate the dead bolt that slide plate has blocked the earthed switch lock, the earthed switch lock can't locking and is taken out key;
4, as overhauled this section main bus bar, carry out following steps: the handcart lock of locking lead-in circuit breaker cabinet, make the handcart of lead-in circuit breaker cabinet be locked in test position, can't push service position, take out the second key, open the earthed switch lock of busbar grounding and PT cabinet, the dead bolt of earthed switch lock is retracted in lock body, then the push slide plate, close a floodgate earthed switch by interlock.Now operate the dead bolt that slide plate has blocked the earthed switch lock, the earthed switch lock can't locking and is taken out key;
5, as overhauled the lead-in circuit breaker cabinet, carry out following steps: the handcart lock of locking higher level breaker cabinet, make the handcart of higher level's breaker cabinet be locked in test position, can't push service position, take out the first key, open the earthed switch lock of lead-in circuit breaker cabinet, the dead bolt of earthed switch lock is retracted in lock body, then the push slide plate, close a floodgate earthed switch by interlock.Now operate the dead bolt that slide plate has blocked the earthed switch lock, the earthed switch lock can't locking and is taken out key.
Implementation step puts into operation after B, maintenance:
1, make grounding switch tripping by interlock, after operation slide plate upward sliding, locking earthed switch lock, the dead bolt that earthed switch is locked stretches out and stops the operation slide plate, takes out the first key, opens the handcart lock of higher level's breaker cabinet;
2, make grounding switch tripping by interlock, after operation slide plate upward sliding, locking earthed switch lock, the dead bolt that earthed switch is locked stretches out and stops the operation slide plate, takes out the second key, opens the handcart lock of lead-in circuit breaker cabinet;
3, the handcart of higher level's breaker cabinet pushes service position by test position, and handcart type breaker closes a floodgate;
4, the handcart of lead-in circuit breaker cabinet pushes service position by test position, and handcart type breaker closes a floodgate.
Claims (2)
1. the anti-misoperation apparatus of a high-tension switch cabinet, described high-tension switch cabinet comprises two breaker cabinets that structure is identical, and one of them is higher level's breaker cabinet, and another is the lead-in circuit breaker cabinet; Described breaker cabinet (1) is provided with handcart type breaker and earthed switch (5), also be provided with interlock (7), earthed switch (5) is hinged to the connecting lever of interlock (7), and the operation slide plate (3) of interlock (7) is movably arranged on the chute of cabinet; It is characterized in that, handcart lock (2) is fixedly mounted on the handcart (9) of handcart type breaker; Baffle plate (6) has two orthogonal sides, is fixedly mounted on cabinet, is positioned at handcart (9) other; When handcart (9) moves in the situation of test position and (2) locking of handcart lock, the dead bolt of handcart lock (2) stretches out from lock body, and a side of baffle plate (6) stops that dead bolt can not move to service position handcart; In the situation that handcart lock (2) is opened, the dead bolt of handcart lock (2) is retracted into lock body, and handcart (9) enters into service position, and another side of baffle plate (6) stops that dead bolt makes the handcart lock (2) can not locking; Earthed switch lock (4) is fixedly mounted on cabinet, is positioned at operation slide plate (3) other; When make earthed switch (5) separating brake and operation slide plate (3) upward sliding by interlock (7) after, and in the situation of earthed switch lock (4) locking, the dead bolt of earthed switch lock (4) stretches out from lock body, bolt blocks operation slide plate (3) makes it can not down sliding, stops by interlock (7) and makes earthed switch (5) combined floodgate; In the situation that earthed switch lock (4) is opened, the dead bolt of earthed switch lock (4) is retracted into lock body, after making to operate slide plate (3) down sliding and earthed switch (5) and close a floodgate by interlock (7), operation slide plate (3) stops that the dead bolt of earthed switch lock (4) makes the earthed switch lock (4) can not locking; The handcart lock of higher level's breaker cabinet and the earthed switch lock of lead-in circuit breaker dispose first key jointly, and the earthed switch lock of higher level's breaker cabinet and the handcart lock of lead-in circuit breaker dispose second key jointly; The mechanical interlocking that the model that described handcart lock and earthed switch lock select the safe international corporation of Castell to produce is K-FSB-6.4-1; The interlocking device of ground switch operating mechanism that the model that described interlock selects Jiangshan Senyuan Electronic Co., Ltd. to produce is 5XS.577.1002.1.
2. the anti-misoperation apparatus of high-tension switch cabinet as claimed in claim 1, it is characterized in that, described high-tension switch cabinet also comprises a busbar grounding and PT cabinet: be provided with earthed switch, also be provided with interlock, earthed switch is hinged to the connecting lever of interlock, and the operation slide plate of interlock is movably arranged on the chute of cabinet; Earthed switch locking Dingan County is contained on cabinet, is positioned at by the operation slide plate; When make grounding switch tripping and operation slide plate upward sliding by interlock after, and in the situation of earthed switch locking lock, the dead bolt of earthed switch lock stretches out from lock body, and bolt blocks operation slide plate makes it can not down sliding, stops by interlock earthed switch is closed a floodgate; In the situation that earthed switch lock is opened, the dead bolt of earthed switch lock is retracted into lock body, and after making to operate slide plate down sliding and earthed switch and close a floodgate by interlock, the operation slide plate stops that the dead bolt of earthed switch lock makes the earthed switch lock can not locking; The key of the earthed switch lock configuration of described busbar grounding and PT cabinet is the second key; The mechanical interlocking that the model that described earthed switch lock selects the safe international corporation of Castell to produce is K-FSB-6.4-1; The interlocking device of ground switch operating mechanism that the model that described interlock selects Jiangshan Senyuan Electronic Co., Ltd. to produce is 5XS.577.1002.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459454.0A CN103490320B (en) | 2013-09-30 | 2013-09-30 | The anti-misoperation apparatus of high-tension switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459454.0A CN103490320B (en) | 2013-09-30 | 2013-09-30 | The anti-misoperation apparatus of high-tension switch cabinet |
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| Publication Number | Publication Date |
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| CN103490320A true CN103490320A (en) | 2014-01-01 |
| CN103490320B CN103490320B (en) | 2015-08-19 |
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| CN201310459454.0A Expired - Fee Related CN103490320B (en) | 2013-09-30 | 2013-09-30 | The anti-misoperation apparatus of high-tension switch cabinet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252147A (en) * | 2016-08-20 | 2016-12-21 | 嘉兴市正辉电力设备有限公司 | A kind of locking system of vacuum circuit breaker |
| CN106252121A (en) * | 2016-08-20 | 2016-12-21 | 嘉兴市正辉电力设备有限公司 | A kind of High-voltage Incoming Cabinet and self power generation cabinet interlock |
| CN108847604A (en) * | 2018-06-20 | 2018-11-20 | 法腾电力装备江苏有限公司 | A kind of minitype high voltage cabinet ground connection interlocking gear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490590A (en) * | 1982-02-03 | 1984-12-25 | Mitsubishi Denki Kabushiki Kaisha | Switching system with grounding device |
| JP2006081267A (en) * | 2004-09-08 | 2006-03-23 | Mitsubishi Electric Corp | Interlock device of closed distribution board |
| CN1776979A (en) * | 2005-11-07 | 2006-05-24 | 北京华东电气股份有限公司 | Handcart high-voltage switch cabinet mechanical interlock mechanism |
| CN103236361A (en) * | 2013-03-28 | 2013-08-07 | 上海正昊电力科技有限公司 | Interlocking device |
| CN203504040U (en) * | 2013-09-30 | 2014-03-26 | 成都通力集团股份有限公司 | Anti-misoperation device of high voltage switch cabinet |
-
2013
- 2013-09-30 CN CN201310459454.0A patent/CN103490320B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490590A (en) * | 1982-02-03 | 1984-12-25 | Mitsubishi Denki Kabushiki Kaisha | Switching system with grounding device |
| JP2006081267A (en) * | 2004-09-08 | 2006-03-23 | Mitsubishi Electric Corp | Interlock device of closed distribution board |
| CN1776979A (en) * | 2005-11-07 | 2006-05-24 | 北京华东电气股份有限公司 | Handcart high-voltage switch cabinet mechanical interlock mechanism |
| CN103236361A (en) * | 2013-03-28 | 2013-08-07 | 上海正昊电力科技有限公司 | Interlocking device |
| CN203504040U (en) * | 2013-09-30 | 2014-03-26 | 成都通力集团股份有限公司 | Anti-misoperation device of high voltage switch cabinet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252147A (en) * | 2016-08-20 | 2016-12-21 | 嘉兴市正辉电力设备有限公司 | A kind of locking system of vacuum circuit breaker |
| CN106252121A (en) * | 2016-08-20 | 2016-12-21 | 嘉兴市正辉电力设备有限公司 | A kind of High-voltage Incoming Cabinet and self power generation cabinet interlock |
| CN108847604A (en) * | 2018-06-20 | 2018-11-20 | 法腾电力装备江苏有限公司 | A kind of minitype high voltage cabinet ground connection interlocking gear |
| CN108847604B (en) * | 2018-06-20 | 2023-11-28 | 法腾电力装备江苏有限公司 | Small-size high-voltage board ground connection interlocking mechanism |
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| CN103490320B (en) | 2015-08-19 |
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