CN202034326U - Anti-misoperation breaker for distribution automatic system below 0.4kV - Google Patents
Anti-misoperation breaker for distribution automatic system below 0.4kV Download PDFInfo
- Publication number
- CN202034326U CN202034326U CN2010206929517U CN201020692951U CN202034326U CN 202034326 U CN202034326 U CN 202034326U CN 2010206929517 U CN2010206929517 U CN 2010206929517U CN 201020692951 U CN201020692951 U CN 201020692951U CN 202034326 U CN202034326 U CN 202034326U
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- CN
- China
- Prior art keywords
- breaker
- residual current
- current action
- action breaker
- misoperation
- 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.)
- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 claims description 7
- 238000012163 sequencing technique Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides an anti-misoperation breaker for a distribution automatic system below 0.4kV, comprising a residual current action breaker, wherein the power supply operation circuit of the residual current action breaker is provided with a pair of normally open contacts connected with the mechanical closing locking contacts on an anti-misearthing knife switch, thus avoiding the accidents of man-made switch operation with load when the residual current action breaker or the power switch of the anti-misearthing knife switch is not operated in specified sequencing.
Description
Technical field
The utility model relates to low-voltage controling appliance, more particularly relates to the anti-misoperation circuit breaker of the following electrical power distribution automatization system of a kind of 0.4kV.
Background technology
Residual current action breaker and anti-error ground connection disconnecting link are two kinds of low-voltage electrical apparatus control appliances, and they are installed in the power distribution control system respectively usually, and independent its function of exercising.The traditional product residual current action breaker is to be control core equipment with the CPU application technology, and the independent use of anti-error ground connection disconnecting link can prevent effectively that the artificial on-load accident of operating a switch from taking place, can be referring to ZL2008202283039, but it is when being used with residual current action breaker, because the mains switch of two kinds of equipment is difference independent operations, therefore, more than not according to the sequencing predetermined operation during two kinds of device power supply (DPS) switches, the possibility that still exists artificial on-load to operate a switch to cause accident to take place.
Summary of the invention
The utility model is solution residual current action breaker, anti-error ground connection disconnecting link are used existence in the following electrical power distribution automatization system of 0.4kV a weak point, and the anti-misoperation circuit breaker of the following electrical power distribution automatization system of a kind of 0.4kV is provided.
The utility model is achieved through the following technical solutions: the anti-misoperation circuit breaker of the following electrical power distribution automatization system of a kind of 0.4kV, comprise residual current action breaker and anti-error ground connection disconnecting link, described anti-error ground connection disconnecting link is provided with the mechanical closure lock, on the power operation loop of the electronic on/off switch mechanism in described residual current action breaker, be provided with and the phase-locked a pair of normally opened contact that is connected of described mechanical closure.
The utility model anti-misoperation circuit breaker compared with prior art, its beneficial effect is:
On the power operation loop of the electronic on/off switch mechanism in residual current action breaker, be provided with and the phase-locked a pair of normally opened contact that is connected of the mechanical closure of anti-error ground connection disconnecting link, can stop the time, the artificial on-load accident of operating a switch takes place not according to the mains switch of sequencing predetermined operation residual current action breaker or anti-error ground connection disconnecting link.
Description of drawings
Accompanying drawing is the structural representation of the utility model anti-misoperation circuit breaker.
In the accompanying drawing: 1.CPU, 2. " N " phase, 3. " W " phase, 4. " V " phase, 5. " U " phase, 6. residual current action breaker moving contact, 7. current transformer loop, 8. current transformer, 9. anti-error ground connection disconnecting link, 10. mechanical closure lock, 11. electronic on/off switch mechanisms, 12. the residual current action breaker normally opened contact, 13. upper static contacts.
Embodiment
Be further described below in conjunction with accompanying drawing and specific embodiment anti-misoperation circuit breaker the following electrical power distribution automatization system of a kind of 0.4kV of the utility model:
In figure, on the power operation loop of the electronic on/off switch mechanism 11 in residual current action breaker 6, be provided with the mechanical closure of anti-error ground connection disconnecting link 9 and lock the 10 a pair of residual current action breaker normally opened contacts 12 that are connected.
In use, anti-misoperation process during combined floodgate is: in the circuit running, at first need to close a floodgate, the regular event order should be moving contact and upper static contact 13 closures with anti-error ground connection disconnecting link 9, lock 10 by mechanical closure thereon and still be in the attitude of unblanking this moment, circuit can not be connected, and then mechanical closure is locked 10 closures, makes it be in blocking.At this moment, the closing of contact of mechanical closure lock 10 is connected residual current action breaker normally opened contact 12 and is in on-state thereupon, residual current action breaker moving contact 6 is closed again, and circuit promptly is in the energising operating state.
If do not close anti-error ground connection disconnecting link, and earlier residual current action breaker moving contact 6 is closed, because the residual current action breaker normally opened contact 12 that is provided with on the electric power loop of electronic on/off switch mechanism 11 is in off-state, then circuit can't be connected, and can not realize the operating state of switching on.If need circuit to enter normal operating conditions, the moving contact and upper static contact 13 closures of anti-error ground connection disconnecting link 9 need be locked mechanical closure 10 closures again, make the closing of contact of mechanical closure lock 10, circuit promptly is in the energising operating state.
Anti-misoperation process during separating brake is: when the maintenance circuit needs separating brake, the regular event order should be that residual current action breaker moving contact 6 is disconnected, again mechanical closure is locked release, be arranged on mechanical closure lock contact 10 this moment and disconnect thereupon, the opening operation that can guarantee anti-error ground connection disconnecting link moving contact 9 is the operation of carrying out under no load condition.
If on-load is operated a switch, anti-error ground connection disconnecting link moving contact 9 can't be drawn back by the restriction of mechanical closure lock.If drew back by force mechanical closure lock contact 10 with the release disconnection of going ahead of the rest, the residual current action breaker normally opened contact 12 that be provided with on electronic on/off switch mechanism 11 the electric power loop this moment promptly is in off-state, at this moment residual current action breaker moving contact 6 tripping operation has in advance prevented on-load drawing disconnecting link.
Claims (1)
1. the anti-misoperation circuit breaker of the following electrical power distribution automatization system of 0.4kV, comprise residual current action breaker and anti-error ground connection disconnecting link, it is characterized in that, described anti-error ground connection disconnecting link is provided with the mechanical closure lock, on the power operation loop of the electronic on/off switch mechanism in described residual current action breaker, be provided with and the phase-locked a pair of normally opened contact that is connected of described mechanical closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206929517U CN202034326U (en) | 2010-12-31 | 2010-12-31 | Anti-misoperation breaker for distribution automatic system below 0.4kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206929517U CN202034326U (en) | 2010-12-31 | 2010-12-31 | Anti-misoperation breaker for distribution automatic system below 0.4kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034326U true CN202034326U (en) | 2011-11-09 |
Family
ID=44896614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206929517U Expired - Lifetime CN202034326U (en) | 2010-12-31 | 2010-12-31 | Anti-misoperation breaker for distribution automatic system below 0.4kV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202034326U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165353A (en) * | 2013-03-01 | 2013-06-19 | 上海电器科学研究院 | Emergency latching device for low-voltage circuit breaker |
| CN105957763A (en) * | 2016-06-30 | 2016-09-21 | 莱芜钢铁集团有限公司 | Knife switch and power supply line |
| CN108461334A (en) * | 2018-04-27 | 2018-08-28 | 广东电网有限责任公司 | Tripper |
| CN108550480A (en) * | 2018-04-27 | 2018-09-18 | 广东电网有限责任公司 | Tripper |
| CN113871226A (en) * | 2021-09-10 | 2021-12-31 | 国网山东省电力公司枣庄供电公司 | Locking device for preventing distribution line disconnecting link from being pulled by mistake under load |
-
2010
- 2010-12-31 CN CN2010206929517U patent/CN202034326U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165353A (en) * | 2013-03-01 | 2013-06-19 | 上海电器科学研究院 | Emergency latching device for low-voltage circuit breaker |
| CN105957763A (en) * | 2016-06-30 | 2016-09-21 | 莱芜钢铁集团有限公司 | Knife switch and power supply line |
| CN108461334A (en) * | 2018-04-27 | 2018-08-28 | 广东电网有限责任公司 | Tripper |
| CN108550480A (en) * | 2018-04-27 | 2018-09-18 | 广东电网有限责任公司 | Tripper |
| CN113871226A (en) * | 2021-09-10 | 2021-12-31 | 国网山东省电力公司枣庄供电公司 | Locking device for preventing distribution line disconnecting link from being pulled by mistake under load |
| CN113871226B (en) * | 2021-09-10 | 2024-05-17 | 国网山东省电力公司枣庄供电公司 | Locking device for preventing on-load misoperation-pulling of distribution line disconnecting link |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEINAN ADMINISTRATION OF POWER SUPPLY Effective date: 20140328 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: WEINAN ADMINISTRATION OF POWER SUPPLY Effective date: 20140328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 714000 WEINAN, SHAANXI PROVINCE TO: 100761 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140328 Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee after: State Grid Corporation of China Patentee after: Weinan Power Supply Bureau Address before: 714000 No. 110 Qianjin Road, Shaanxi, Weinan Patentee before: Weinan Power Supply Bureau |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |