CN203617674U - Apparatus of preventing closing coil burning loss used for high voltage switch operating mechanism - Google Patents
Apparatus of preventing closing coil burning loss used for high voltage switch operating mechanism Download PDFInfo
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- CN203617674U CN203617674U CN201320712232.0U CN201320712232U CN203617674U CN 203617674 U CN203617674 U CN 203617674U CN 201320712232 U CN201320712232 U CN 201320712232U CN 203617674 U CN203617674 U CN 203617674U
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- Prior art keywords
- closing coil
- protection module
- high voltage
- closing
- voltage switch
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- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 208000033999 Device damage Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
The utility model discloses an apparatus of preventing a closing coil burning loss used for a high voltage switch operating mechanism. The apparatus comprises a closing coil and a protection module. The protection module comprises a bimetallic strip temperature switch, an automatic control circuit and an electromagnetic relay. An output terminal of the electromagnetic relay is connected in series to an input terminal of the closing coil. The protection module is provided with a protection shell. The protection module is provided with a counter and the counter is connected to an alarm. After a closing process of a circuit breaker begins, an operation current flows through the closing coil; the bimetallic strip temperature switch synchronously memorizes a temperature rise, carries out motion when an overheat fault exists and disconnects the closing coil; when the temperature is reduced to the temperature at which the closing is allowed, the bimetallic strip temperature switch recovers to an original state so that the closing coil is effectively guaranteed not to be burnt.
Description
Technical field
The utility model belongs to relay auxiliary protection equipment technical field, particularly the device that prevents closing coil scaling loss for a kind of operation mechanism for high voltage switch.
Background technology
Along with expanding economy, the raising of industrialized level, the safe and reliable operation of electric power system seems and becomes more and more important.Though the non-power transmission and transforming equipment theme of secondary circuit, just monitors, controls, regulates and protect primary equipment, it guarantee electrical production safe, provide the aspects such as qualified electric energy to play an important role to user.The fault of secondary circuit, even very little fault also likely affects electric power system and normally moves.And in secondary circuit failure, one of fault type that frequency is maximum is exactly burning of closing coil, it will make power equipment lose remote control, have a strong impact on power supply reliability.
Breaker closing action due to closing coil in short-term charged adhesive electromagnet realize, feed motion starts rear loop in self-sustaining state, after move, its loop by with the auxiliary switch cut-out of mechanism's interlock; If there is the problems such as mechanism's bite, auxiliary switch can not normally switch when combined floodgate, auxiliary contact can not be opened, and closing circuit is by self-sustaining, and closing coil will be charged for a long time.All closing coils are all by charged design in short-term, and long-term charged inevitable being burnt, burns in process and generally there will be turn-to-turn short circuit, and electric current increases, and then burns operation panel.Once there is bite in power circuit breaker therefore, will inevitably burn closing coil and operation panel, have a strong impact on power supply.As spare part lacks, interruption duration will be longer.Tracing it to its cause is exactly, and in high-voltage switch gear debugging and telemechanical operating process, and closing circuit is when abnormal, fails to dispel the heat the time fully to closing coil due to combined floodgate continuously, is easy to cause Burnout of Closing Coil, here the controlling element of core when temperature.CN 203071574 U disclose a kind of device that prevents primary cut-out Burnout of Closing Coil, comprise the monitoring and protection module with first, second test side and earth terminal; The first test side is electrically connected with one end of closing coil, and the second test side is electrically connected with the other end of closing coil; Earth terminal ground connection.Although the device that prevents primary cut-out Burnout of Closing Coil above-mentioned can learn that whether closing coil is normal during in "on" position at circuit breaker; and release; but when unloading overbottom pressure, closing coil circuit does not cut off; still there is larger damage for closing coil, and do not there is automatic protection and effectively control function.
Utility model content
The utility model, in order to address the above problem, provides the device that prevents closing coil scaling loss for a kind of simple in structure, practical operation mechanism for high voltage switch.
For achieving the above object; the technical solution adopted in the utility model is: the device that prevents closing coil scaling loss for a kind of operation mechanism for high voltage switch; comprise closing coil and protection module; described protection module comprises bimetal leaf temperature switch, automatic control circuit and electromagnetic relay, and the output of described electromagnetic relay is serially connected in closing coil input.
Described bimetal leaf temperature switch initial condition is normally closed, and the output initial condition of described electromagnetic relay is normally closed.
On described automatic control circuit, be provided with signal lamp and power supply.
Described protection module is provided with guard shield.
Described protection module is provided with counter, and described counter connects alarm.
Described bimetal leaf temperature switch initial condition of the present utility model is normally closed, the output initial condition of described electromagnetic relay is normally closed, guarantee that normal closing coil operation is unaffected, the course of work that prevents the device of closing coil scaling loss is: after breaker closing process starts, on closing coil, flow through operating current, the bimetal leaf heat-conducting piece of described bimetal leaf temperature switch is close on coil fixing, and follow it to produce memory temperature rise, switching current heat production is in short-term not enough so that its action, only remember temperature rise with coil temperature rise simultaneously, in the time breaking down, owing to not having enough time heat radiation to cause temperature rise to raise fast, when described bimetal leaf temperature switch, move, automatic control circuit described in conducting, output by described electromagnetic relay disconnects closing coil, and described in while only having temperature to drop to allow again to close a floodgate, bimetal leaf temperature switch is from returning to initial condition, effectively guarantee that closing coil avoids burning, on described automatic control circuit, be provided with signal lamp and power supply, in the time of fault, indicator light is bright, easy access location, and described protection module is provided with guard shield, avoids electrical interference and device damage, described protection module is provided with counter, can record access times, and in conjunction with running time, described in while arriving the maintenance cycle of setting, alarm prompting staff safeguards equipment, if frequency very higher position can tentatively be concluded coil fault, for the safety, the reliability service that keep equipment provide important reference.The utlity model has dependable performance, convenient and practical, the advantage such as labour intensity is low, observation efficiency, is convenient to generally promote the use of.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is layout structure schematic diagram of the present utility model.
Embodiment
Specific embodiment one
As shown in Figure 1; the device that prevents closing coil scaling loss for a kind of operation mechanism for high voltage switch; comprise closing coil and protection module; described protection module comprises bimetal leaf temperature switch KR, automatic control circuit and electromagnetic relay K; the output of described electromagnetic relay K is serially connected in closing coil input; described bimetal leaf temperature switch KR initial condition is normally closed, and the output initial condition of described electromagnetic relay K is normally closed.
On described automatic control circuit, be provided with signal lamp LD and power supply U.
Specific embodiment two
Be with specific embodiment one difference: described protection module is provided with guard shield.
Described protection module is provided with counter, and described counter connects alarm.
In above-described embodiment, described bimetal leaf temperature switch initial condition of the present utility model is normally closed, the output initial condition of described electromagnetic relay is normally closed, guarantee that normal closing coil operation is unaffected, the course of work that prevents the device of closing coil scaling loss is: after breaker closing process starts, on closing coil, flow through operating current, the bimetal leaf heat-conducting piece of described bimetal leaf temperature switch is close on coil fixing, and follow it to produce memory temperature rise, switching current heat production is in short-term not enough so that its action, only remember temperature rise with coil temperature rise simultaneously, in the time breaking down, owing to not having enough time heat radiation to cause temperature rise to raise fast, when described bimetal leaf temperature switch, move, automatic control circuit described in conducting, output by described electromagnetic relay disconnects closing coil, and described in while only having temperature to drop to allow again to close a floodgate, bimetal leaf temperature switch is from returning to initial condition, effectively guarantee that closing coil avoids burning, on described automatic control circuit, be provided with signal lamp and power supply, in the time of fault, indicator light is bright, easy access location, and described protection module is provided with guard shield, avoids electrical interference and device damage, described protection module is provided with counter, can record access times, and in conjunction with running time, while arriving the maintenance cycle of setting described in alarm prompting staff equipment is safeguarded, keep safety, the reliability service of equipment.The utlity model has dependable performance, convenient and practical, the advantage such as labour intensity is low, observation efficiency, is convenient to generally promote the use of.
Claims (5)
1. a device that prevents closing coil scaling loss for operation mechanism for high voltage switch; it is characterized in that: comprise closing coil and protection module; described protection module comprises bimetal leaf temperature switch, automatic control circuit and electromagnetic relay, and the output of described electromagnetic relay is serially connected in closing coil input.
2. operation mechanism for high voltage switch, with preventing the device of closing coil scaling loss, is characterized in that: described bimetal leaf temperature switch initial condition is normally closed, and the output initial condition of described electromagnetic relay is normally closed as claimed in claim 1.
3. operation mechanism for high voltage switch, with preventing the device of closing coil scaling loss, is characterized in that: on described automatic control circuit, be provided with signal lamp and power supply as claimed in claim 1.
4. operation mechanism for high voltage switch, with preventing the device of closing coil scaling loss, is characterized in that: described protection module is provided with guard shield as claimed in claim 1.
5. operation mechanism for high voltage switch, with preventing the device of closing coil scaling loss, is characterized in that: described protection module is provided with counter as claimed in claim 1, and described counter connects alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712232.0U CN203617674U (en) | 2013-11-13 | 2013-11-13 | Apparatus of preventing closing coil burning loss used for high voltage switch operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712232.0U CN203617674U (en) | 2013-11-13 | 2013-11-13 | Apparatus of preventing closing coil burning loss used for high voltage switch operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617674U true CN203617674U (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712232.0U Expired - Fee Related CN203617674U (en) | 2013-11-13 | 2013-11-13 | Apparatus of preventing closing coil burning loss used for high voltage switch operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889979A (en) * | 2021-10-13 | 2022-01-04 | 广西电网有限责任公司电力科学研究院 | GIS opening and closing coil double protection device |
-
2013
- 2013-11-13 CN CN201320712232.0U patent/CN203617674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889979A (en) * | 2021-10-13 | 2022-01-04 | 广西电网有限责任公司电力科学研究院 | GIS opening and closing coil double protection device |
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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 |
Granted publication date: 20140528 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |