CN106856298A - Medium voltage switchgear equipment - Google Patents
Medium voltage switchgear equipment Download PDFInfo
- Publication number
- CN106856298A CN106856298A CN201710182745.8A CN201710182745A CN106856298A CN 106856298 A CN106856298 A CN 106856298A CN 201710182745 A CN201710182745 A CN 201710182745A CN 106856298 A CN106856298 A CN 106856298A
- Authority
- CN
- China
- Prior art keywords
- normally opened
- trip relay
- medium voltage
- voltage switchgear
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of medium voltage switchgear equipment, including：Cabinet and the circuit that electrical equipment is formed by connecting in cabinet, anti-trip relay is provided with the circuit, the normally opened node of anti-trip relay is connected on anti-jump path, characterized in that, a normally opened auxiliary magnet for breaker is connected in parallel with the normally opened node of the anti-trip relay being located in the anti-jump path in the equipment.The medium voltage switchgear equipment is by parallel with the normally opened node of anti-trip relay by a normally opened node for breaker, accordingly even when anti-trip relay cannot start, also can be realized by the normally opened node of a breaker anti-jump, it is ensured that anti-bouncing function is realized, it is achieved thereby that " dual fail-safe " of electric trip-preventing.
Description
Technical field
The present invention relates to controller switching equipment field, more particularly to a kind of medium voltage switchgear equipment.
Background technology
At present, the breaker in 6KV~220KV country switchgear, if multiple division fault current in a short time,
To cause the damage of primary cut-out, it is therefore necessary to which " anti-jump " function is set, so as to prevent breaker outgoing line from repeatedly dividing-closing existing
As, electric " anti-jump " be typically all this function, concrete principle are realized by an auxiliary reclay (TBJ) as shown in figure 1, its
In, the contact breaking coil of protection exit relay makes circuit breaker trip.Now the current coil of TBJ is powered, and its is normally opened
Junction closure, such as now the order of change-over switch KK combined floodgates is not disappeared (or non-involution), and closing pulse is not released, the pressure-wire of TBJ
Circle makes relay self-sustaining, and its normally closed contact disconnects, and cutting off closing circuit prevents breaker from closing a floodgate again, is so achieved that
" anti-jump " function.After closing pulse releasing, the potential winding power-off of TBJ, relay reset contact restores to the original state.But inventor
It was found that：When auxiliary reclay TBJ current coils cause to act because of failure, then " anti-jump " disabler, it is impossible to ensure
Security.
The content of the invention
Based on the problems of prior art, it is an object of the invention to provide a kind of medium voltage switchgear equipment, can be anti-jump
Relay TBJ current coils improve device security because when failure causes to act, still ensureing anti-bouncing function.
The purpose of the present invention is achieved through the following technical solutions：
The embodiment of the present invention provides a kind of medium voltage switchgear equipment, including：Cabinet and electrical equipment is formed by connecting in cabinet
Circuit, anti-trip relay is provided with the circuit, the normally opened node of anti-trip relay is connected on anti-jump path, and its feature exists
In the normally opened auxiliary magnet of the breaker in the equipment is in parallel with the normally opened node of the anti-trip relay being located in the anti-jump path
Connection.
As seen from the above technical solution provided by the invention, medium voltage switchgear equipment provided in an embodiment of the present invention, leads to
Cross that a normally opened node for breaker is in parallel with the normally opened node of anti-trip relay, accordingly even when anti-trip relay cannot be opened
It is dynamic, can also be realized by the normally opened node of a breaker anti-jump, it is ensured that anti-bouncing function realization, it is achieved thereby that electric trip-preventing
" dual fail-safe ".
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
The circuit diagram of the medium voltage switchgear equipment that Fig. 1 is provided for prior art；
Fig. 2 is the circuit diagram of medium voltage switchgear equipment provided in an embodiment of the present invention.
Specific embodiment
With reference to particular content of the invention, the technical scheme in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to protection scope of the present invention.
As shown in Fig. 2 the embodiment of the present invention provides a kind of medium voltage switchgear equipment, including：Cabinet and electrically set in cabinet
The standby circuit being formed by connecting, is provided with anti-trip relay in the circuit, the normally opened node of anti-trip relay is connected on anti-jump path,
Characterized in that, the normally opened auxiliary magnet and the anti-trip relay being located in the anti-jump path of breaker in the equipment
Normally opened node is connected in parallel.Will the normally opened auxiliary magnet of unique breaker and the institute being located in the anti-jump path in the equipment
The normally opened node for stating anti-trip relay is in parallel.
In above-mentioned medium voltage switchgear equipment, anti-trip relay uses auxiliary reclay.
Medium voltage switchgear equipment of the invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 when anti-trip relay TBJ (using auxiliary reclay) current coils because failure causes to move
Make, if when " anti-jump " function needs to start, the anti-trip relay is just faulty, can cause the damage of breaker, seriously
When the expansion that can cause the accident cause serious consequence.Parallel connection is accessed the present invention (on i.e. anti-jump path) between 103 and No. 109 lines
One normally opened auxiliary magnet DL of breaker, the normally opened auxiliary magnet DL of the breaker is in parallel with the normally opened node of anti-trip relay even
Connect.Accordingly even when anti-trip relay TBJ cannot start, the normally opened auxiliary magnet DL of breaker also can guarantee that anti-bouncing function is realized, from
And realize " dual fail-safe " of electric trip-preventing.The present invention realizes " dual fail-safe " of anti-bouncing function in a simpler way, it is ensured that
The safe operation of equipment.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (2)
1. a kind of medium voltage switchgear equipment, including：Cabinet and the circuit that electrical equipment is formed by connecting in cabinet, are provided with the circuit
Anti-trip relay, the normally opened node of anti-trip relay is connected on anti-jump path, it is characterised in that breaker in the equipment
Normally opened auxiliary magnet is connected in parallel with the normally opened node of the anti-trip relay being located in the anti-jump path.
2. medium voltage switchgear equipment according to claim 1, it is characterised in that the anti-trip relay is using middle relay
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182745.8A CN106856298A (en) | 2017-03-24 | 2017-03-24 | Medium voltage switchgear equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182745.8A CN106856298A (en) | 2017-03-24 | 2017-03-24 | Medium voltage switchgear equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106856298A true CN106856298A (en) | 2017-06-16 |
Family
ID=59125390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710182745.8A Pending CN106856298A (en) | 2017-03-24 | 2017-03-24 | Medium voltage switchgear equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106856298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306255A (en) * | 2018-03-20 | 2018-07-20 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Manipulation type protects circuit and guard method temporarily |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201717611U (en) * | 2010-05-29 | 2011-01-19 | 珠海欧力配电自动化***有限公司 | Anti-tripping latching protection system for microcomputers |
| CN203787949U (en) * | 2014-03-27 | 2014-08-20 | 江苏省电力公司常州供电公司 | Breaker mechanism tripping prevention circuit |
| CN204696804U (en) * | 2015-06-30 | 2015-10-07 | 山东鲁亿通智能电气股份有限公司 | A kind of anti-jump monitoring arrangement |
| CN105006806A (en) * | 2015-08-18 | 2015-10-28 | 安阳工学院 | Circuit breaker series connection type electrical trip prevention circuit |
| CN206727427U (en) * | 2017-03-24 | 2017-12-08 | 北京北方箱变电气有限公司 | Medium voltage switchgear equipment |
-
2017
- 2017-03-24 CN CN201710182745.8A patent/CN106856298A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201717611U (en) * | 2010-05-29 | 2011-01-19 | 珠海欧力配电自动化***有限公司 | Anti-tripping latching protection system for microcomputers |
| CN203787949U (en) * | 2014-03-27 | 2014-08-20 | 江苏省电力公司常州供电公司 | Breaker mechanism tripping prevention circuit |
| CN204696804U (en) * | 2015-06-30 | 2015-10-07 | 山东鲁亿通智能电气股份有限公司 | A kind of anti-jump monitoring arrangement |
| CN105006806A (en) * | 2015-08-18 | 2015-10-28 | 安阳工学院 | Circuit breaker series connection type electrical trip prevention circuit |
| CN206727427U (en) * | 2017-03-24 | 2017-12-08 | 北京北方箱变电气有限公司 | Medium voltage switchgear equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108306255A (en) * | 2018-03-20 | 2018-07-20 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Manipulation type protects circuit and guard method temporarily |
| CN108306255B (en) * | 2018-03-20 | 2024-01-26 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Operation type temporary protection circuit and protection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |