CN205211625U - Prevent switch mistake and close circuit system - Google Patents
Prevent switch mistake and close circuit system Download PDFInfo
- Publication number
- CN205211625U CN205211625U CN201520965117.3U CN201520965117U CN205211625U CN 205211625 U CN205211625 U CN 205211625U CN 201520965117 U CN201520965117 U CN 201520965117U CN 205211625 U CN205211625 U CN 205211625U
- Authority
- CN
- China
- Prior art keywords
- disconnecting link
- switch
- closing circuit
- normally closed
- auxiliary contact
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The utility model discloses a prevent switch mistake and close circuit system, this prevent switch mistake and close circuit system include first switch combined floodgate return circuit and second switch combined floodgate return circuit, establish ties by second switch combined floodgate loop control's a normally closed auxiliary contact switch in the first switch combined floodgate return circuit, establish ties by first switch combined floodgate loop control's the 2nd normally closed auxiliary contact switch in the second switch combined floodgate return circuit. Through the normally closed auxiliary contact switch that sets up the interconnection, the emergence of the similar circumstances is avoided to the switch that only just can close when another organizes switch in the separating brake position, guarantees the safety of the person, equipment.
Description
Technical field
The utility model relates to a kind of anti-disconnecting link and closes Circuits System by mistake.
Background technology
In Substation Switch Changing Operation process, often to carry out point closing operation of isolating switch, if one group of bus interruption maintenance, during adjacent bus charging operation, if two groups, same interval isolating switch is closed by mistake simultaneously, busbar grounding fault will be caused, cause the generation of no-voltage of entire station serious accident.Such as: a certain transformer station is after the cutter of operation First Line east, and the western cutter of First Line (west is female at inspecting state) steal and close, and causes two groups of bus loss of pressure, and full station loses load.After ascertain the reason as in-house distribution insulation reduction causes positive electricity to be concatenated into closing circuit, cause combined floodgate.
For standing in grid switching operation process to high-voltage transforming at present, two groups, same interval isolating switch is easily closed by mistake, easily causes the technical problem of the serious accident of no-voltage of entire station, is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
Stand in grid switching operation process to high-voltage transforming at present to overcome, two groups, same interval isolating switch is easily closed by mistake, causes the technical problem of the serious accident of no-voltage of entire station, and the utility model provides a kind of anti-disconnecting link to close Circuits System by mistake.
On the one hand, the utility model provides a kind of anti-disconnecting link and closes Circuits System by mistake, comprises the first disconnecting link closing circuit and the second disconnecting link closing circuit,
Connect by the first normally closed auxiliary contact switch of described second disconnecting link closing circuit control in described first disconnecting link closing circuit;
Connect in described second disconnecting link closing circuit by the second normally closed auxiliary contact switch of described first disconnecting link closing circuit control.
Further, the first interconnected pressing plate switch with described first normally closed auxiliary contact switch in parallel is set in described first disconnecting link closing circuit.
Further, the second interconnected pressing plate switch with described second normally closed auxiliary contact switch in parallel is set in described second disconnecting link closing circuit.
Further, the first relay of connecting in described second disconnecting link closing circuit, described first relay is for controlling described first normally closed auxiliary contact switch.
Further, the second relay of connecting in described first disconnecting link closing circuit, described second relay is for controlling described second normally closed auxiliary contact switch.
Compared with prior art, the beneficial effects of the utility model are:
The utility model provides a kind of anti-disconnecting link mistake conjunction Circuits System to comprise the first disconnecting link closing circuit and the second disconnecting link closing circuit, the first normally closed auxiliary contact switch controlled by the second disconnecting link closing circuit of connecting in described first disconnecting link closing circuit; Connect in described second disconnecting link closing circuit by the second normally closed auxiliary contact switch of the first disconnecting link closing circuit control.By arranging interconnected normally closed auxiliary contact switch, only just can close when another group disconnecting link is at open position disconnecting link, avoids the generation of analogue, guarantee the safety of the person, equipment.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the first disconnecting link closing circuit partial circuit schematic diagram in the utility model one embodiment;
Fig. 2 is the second disconnecting link closing circuit partial circuit schematic diagram in the utility model one embodiment.
Description of reference numerals:
1, the first normally closed auxiliary contact switch; 11, the second normally closed auxiliary contact switch; 2, the first interconnected pressing plate switch; 21, the second interconnected pressing plate switch.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below in conjunction with accompanying drawing, each preferred embodiment of the present utility model is described further:
The utility model embodiment provides a kind of anti-disconnecting link to close Circuits System by mistake, as depicted in figs. 1 and 2, this anti-disconnecting link closes Circuits System by mistake and comprises the first disconnecting link closing circuit and the second disconnecting link closing circuit, first disconnecting link closing circuit is substantially identical with the second disconnecting link closing circuit circuit theory, and structure is also substantially identical, the first normally closed auxiliary contact switch 1 controlled by the second disconnecting link closing circuit of connecting in the first disconnecting link closing circuit; Connect in described second disconnecting link closing circuit by the second normally closed auxiliary contact switch 11 of the first disconnecting link closing circuit control.
By a first normally closed auxiliary contact switch 1 controlled by the second disconnecting link closing circuit of connecting in the first disconnecting link closing circuit, under the second disconnecting link closing circuit conducting state, first normally closed auxiliary contact switch 1 is in off-state, even if now the first disconnecting link closing circuit can not control the first disconnecting link combined floodgate by closed for its main switch; And under the second disconnecting link closing circuit off-state, the first normally closed auxiliary contact switch 1 is in closure state, now the first disconnecting link closing circuit can control the first disconnecting link combined floodgate after can being closed by its main switch of control.Effectively prevent two disconnecting links to be in "on" position simultaneously.
Equally, by a second normally closed auxiliary contact switch 11 controlled by the first disconnecting link closing circuit of connecting in the second disconnecting link closing circuit, under the first disconnecting link closing circuit conducting state, second normally closed auxiliary contact switch 11 is in off-state, even if now the second disconnecting link closing circuit can not control the second disconnecting link combined floodgate by closed for its main switch; And under the first disconnecting link closing circuit off-state, the second normally closed auxiliary contact switch 11 is in closure state, now the second disconnecting link closing circuit can control the second disconnecting link combined floodgate after can being closed by its main switch of control.Effectively prevent two disconnecting links to be in "on" position simultaneously.
Preferably, series connection the first relay (not shown) in second disconnecting link closing circuit, first relay is for controlling described first normally closed auxiliary contact switch 1, series connection the second relay (not shown) in first disconnecting link closing circuit, second relay is for controlling described second normally closed auxiliary contact switch 11, by selecting the first relay and the second relay to control the first normally closed auxiliary contact switch 1 and the second normally closed auxiliary contact switch 11 respectively, two normally-closed contact switches can be controlled simply and effectively.
Certainly alternatively, also can selecting, other different control device are set in the first disconnecting link closing circuit and the second disconnecting link closing circuit and controls the first normally closed auxiliary contact switch 1 and the second normally closed auxiliary contact switch 11, not repeat them here.
As shown in Figure 1, the first interconnected pressing plate switch 2 with described first normally closed auxiliary contact 1 switch in parallel is set in the first disconnecting link closing circuit.
By arranging the first interconnected pressing plate switch 2, mainly make to need two disconnecting links simultaneously closed interconnected for use when test or experiment in order to certain in two groups of disconnecting link closing circuits, fewer owing to using, this first interconnected pressing plate switch 2 is often in off-state.
As shown in Figure 2, the second interconnected pressing plate switch 21 in parallel with described second normally closed auxiliary contact switch 11 is set in the second disconnecting link closing circuit.
By arranging the second interconnected pressing plate switch 21, mainly make to need two disconnecting links simultaneously closed interconnected for use when test or experiment in order to certain in two groups of disconnecting link closing circuits, fewer owing to using, this second interconnected pressing plate switch 21 is often in off-state.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. anti-disconnecting link closes a Circuits System by mistake, comprises the first disconnecting link closing circuit and the second disconnecting link closing circuit, it is characterized in that,
Connect by the first normally closed auxiliary contact switch (1) of described second disconnecting link closing circuit control in described first disconnecting link closing circuit;
Connect in described second disconnecting link closing circuit by the second normally closed auxiliary contact switch (11) of described first disconnecting link closing circuit control.
2. anti-disconnecting link according to claim 1 closes Circuits System by mistake, it is characterized in that, arranges the first interconnected pressing plate switch (2) with described first normally closed auxiliary contact (1) switch in parallel in described first disconnecting link closing circuit.
3. anti-disconnecting link according to claim 2 closes Circuits System by mistake, it is characterized in that, arranges the second interconnected pressing plate switch (21) in parallel with described second normally closed auxiliary contact switch (11) in described second disconnecting link closing circuit.
4. the anti-disconnecting link according to any one of claim 1-3 closes Circuits System by mistake, it is characterized in that, the first relay of connecting in described second disconnecting link closing circuit, and described first relay is for controlling described first normally closed auxiliary contact switch (1).
5. the anti-disconnecting link according to any one of claim 1-3 closes Circuits System by mistake, it is characterized in that, the second relay of connecting in described first disconnecting link closing circuit, and described second relay is for controlling described second normally closed auxiliary contact switch (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520965117.3U CN205211625U (en) | 2015-11-27 | 2015-11-27 | Prevent switch mistake and close circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520965117.3U CN205211625U (en) | 2015-11-27 | 2015-11-27 | Prevent switch mistake and close circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211625U true CN205211625U (en) | 2016-05-04 |
Family
ID=55849325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520965117.3U Expired - Fee Related CN205211625U (en) | 2015-11-27 | 2015-11-27 | Prevent switch mistake and close circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621805A (en) * | 2017-09-30 | 2018-01-23 | 国网黑龙江省电力有限公司黑河供电公司 | Electric substation's uniline anti-misoperation system |
-
2015
- 2015-11-27 CN CN201520965117.3U patent/CN205211625U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621805A (en) * | 2017-09-30 | 2018-01-23 | 国网黑龙江省电力有限公司黑河供电公司 | Electric substation's uniline anti-misoperation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101297448B (en) | A converter station | |
| CN101297449B (en) | A transmission system | |
| CN104333118A (en) | Spare power automatic switching system with self-adaptive switching intermediate resistance grounding mode, and operation method thereof | |
| CN101297455B (en) | A converter station | |
| CN103560512A (en) | High-reliability closed loop wiring method of medium voltage distribution network | |
| CN205211625U (en) | Prevent switch mistake and close circuit system | |
| CN104218457A (en) | Power distribution device and electric master system thereof | |
| CN107482523B (en) | Double bus scheme GIS device and its repair method, pressure resistant test method | |
| CN207782141U (en) | A kind of secondary voltage circuit and high-tension switch cabinet of PT | |
| CN203481822U (en) | Closed loop power supply model of medium voltage 10 kilovolt power distribution network | |
| CN201717670U (en) | Dual-power-supply switching device with overvoltage protection | |
| CN202009236U (en) | Single-bus segmental running control device of substation | |
| CN104377805A (en) | Communication station low-voltage distribution system | |
| CN204794328U (en) | Three -phase electricity dual supply automatic switching control equipment | |
| CN103258668A (en) | Novel bus earthing knife-switch control method and system | |
| CN207459723U (en) | Spare phase transformer quickly puts into arrangement | |
| CN208257496U (en) | Dual-power automatic switching formula heating tape current supply circuit | |
| CN203850641U (en) | Optimized 110kV cable wiring structure capable of realizing fault fast isolation | |
| CN104377649A (en) | Automatic switching method of transformer neutral grounding knife-switch | |
| CN103840553A (en) | Failure starting circuit and method for starting failure circuit | |
| CN203813221U (en) | PT1 type power distribution station | |
| CN204905672U (en) | 10kV main transformer branch connection based on single bus scheme | |
| CN203039341U (en) | Last breaker protecting and resetting device | |
| CN203387199U (en) | Generator synchronization grid connected automatic apparatus | |
| CN201708446U (en) | Vacuum disconnector combined electrical apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20211127 |