CN202435019U - Switch closing coil protection device - Google Patents
Switch closing coil protection device Download PDFInfo
- Publication number
- CN202435019U CN202435019U CN2012200116663U CN201220011666U CN202435019U CN 202435019 U CN202435019 U CN 202435019U CN 2012200116663 U CN2012200116663 U CN 2012200116663U CN 201220011666 U CN201220011666 U CN 201220011666U CN 202435019 U CN202435019 U CN 202435019U
- Authority
- CN
- China
- Prior art keywords
- coil
- closing coil
- switch closing
- switch
- power supply
- 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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Abstract
The utility model discloses a switch closing coil protection device and aims to provide a switch closing coil protection device which can automatically cut off a coil power supply under the condition of switch failure so as to prevent a coil from being burnt out due to overheating. The switch closing coil protection device comprises a device body. A detection module, a control module, a central controller and a power supply module are also arranged in the device body, wherein the detection module and the control module are connected in series in a main circuit; the central controller is connected in parallel with the detection module and the control module; and the power supply module is connected in series with the central controller. According to the utility model, the coil power supply can be automatically cut off to prevent the coil from being burnt out due to overheating. The switch closing coil protection device also has a function of automatically recovering the power supply after the power supply is cut off; and when the coil power supply is automatically cut off for set time, a coil loop can be automatically recovered into a conducting state by the protection device so as to provide an access in the repeated switching-on process, and therefore, the fault recovery time can be greatly shortened and the power supply reliability is improved.
Description
Technical field
The utility model relates to a kind of circuit protection device, especially a kind of switch closing coil protective device.
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 is just monitored, controls, is regulated and protect primary equipment, it guarantee electrical production safe, provide qualified aspects such as electric energy to play an important role to the user.The fault of secondary circuit is even very little fault also might influence electric power system and normally move.And in secondary circuit failure, one of fault type that frequency is maximum is exactly burning of closing coil, and it will make that power equipment loses remote control, have a strong impact on power supply reliability.
Summary of the invention
The purpose of the utility model is to overcome deficiency of the prior art, and a kind of switch closing coil protective device is provided, and can under the situation of switch fault, cut off coil power automatically, prevents that coil is overheated to burn out.
In order to solve the problems of the technologies described above; The utility model is realized through following technical scheme: a kind of switch closing coil protective device; Comprise device body; Also comprise the detection module that is connected in the main line in the device body, be connected on the control module in the main line, the central controller parallelly connected, the power module of connecting with central controller with detection module and control module.
Further, also be provided with remote signalling lead-out terminal, wire loop input, wire loop output, positive source joint, power cathode joint on the said device body, switch closing coil protective device can be connected with external circuit.
Further, said positive source joint is connected with circuit anode, and said power cathode joint is connected with the circuit negative pole, for protective device provides power supply.
Further, also be connected to normal open switch on the said wire loop input, the said normal open switch other end is connected with circuit anode, also is provided with normally closed switch on the said wire loop output, and the said normally closed switch other end links to each other with coil, prevents that coil is overheated to burn out.
Further, said control module is used IGBT and coil polyphone, and IGBT is that insulated gate bipolar transistor can be put forward out high reliability of closing the closing coil protective device.
Further; Also be provided with emergency bypass in the said device body, said emergency bypass and detection module, control module are parallelly connected, when switch closing coil protective device fault; Emergency bypass work can not influence wire loop because of switch closing coil protective device fault and closes a floodgate and separating brake.
Further, also be provided with trouble light and alarm on the said device body, when emergency bypass started, the trouble light on the device body was bright, and alarm sends warning tone simultaneously.
The beneficial effect of the utility model is: under the situation of coil circuit switching fault; The utility model can cut off coil power automatically, burns out in case the principal vertical line circle is overheated, and the utility model also has the back auto restore facility of cutting off the electricity supply; Protective device can make wire loop revert to conducting state automatically when arriving setting-up time behind the automatic cut-out coil power; So that the path when repeatedly closing a floodgate to be provided, can shorten failure recovery time greatly, improve power supply reliability.
Description of drawings
Fig. 1 is the external wiring diagram of a kind of switch closing coil protective device of the utility model;
Fig. 2 is the schematic diagram of a kind of switch closing coil protective device of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
A kind of switch closing coil protective device in Fig. 1, Fig. 2; Comprise device body 1; Also comprise the detection module 10 that is connected in the main line in the device body 1, be connected on the control module 14 in the main line; The central controller 13 parallelly connected with detection module 10 and control module 14, the power module 12 of connecting with central controller 13.Also be provided with remote signalling lead-out terminal 9, wire loop input 4, wire loop output 5, positive source joint 6, power cathode joint 7 on the said device body 1, switch closing coil protective device can be connected with external circuit.Said positive source joint 6 is connected with circuit anode 2, and said power cathode joint 7 is connected with circuit negative pole 3, for protective device provides power supply.Also be connected to normal open switch 15 on the said wire loop input 4, said normal open switch 15 other ends are connected with positive 2 utmost points of circuit, also are provided with normally closed switch 16 on the said wire loop output 5, and said normally closed switch 16 other ends link to each other with coil 8., be used to protect coil 8, prevent coil 8 overheated burning out.Said control module 14 uses IGBT to connect with coil 8, and IGBT is that insulated gate bipolar transistor is put forward out high reliability of closing the closing coil protective device.Also be provided with emergency bypass 11 in the said device body 1; Said emergency bypass 11 and detection module 10, control module 14 are parallelly connected; When switch closing coil protective device fault, emergency bypass 11 work can not influence wire loop because of switch closing coil protective device fault and close a floodgate and separating brake.Also be provided with trouble light and alarm on the said device body 1, when emergency bypass started, the trouble light on the device body 1 was bright, and alarm sends warning tone simultaneously.
Under the situation of coil circuit switching fault; The utility model can cut off coil 8 power supplys automatically, in case principal vertical line circle 8 overheated burning out, the utility model also has the back auto restore facility of cutting off the electricity supply; Protective device can make wire loop revert to conducting state automatically when arriving setting-up time behind the automatic cut-out coil power; So that the path when repeatedly closing a floodgate to be provided, can shorten failure recovery time greatly, improve power supply reliability; Automatically cutting off the coil power time can regulate through sensitive switch, and be 0-15 second the coil power break time that can regulate.
Claims (7)
1. switch closing coil protective device; Comprise device body (1); It is characterized in that: also comprise the detection module (10) that is connected in the main line in the device body (1), be connected on the control module (14) in the main line; The central controller (13) that is connected with detection module (10), control module (14), the power module (12) of connecting with central controller (13).
2. a kind of switch closing coil protective device according to claim 1 is characterized in that: also be provided with remote signalling lead-out terminal (9), wire loop input (4), wire loop output (5), positive source joint (6), power cathode joint (7) on the said device body (1).
3. according to claims 1 or 2 described a kind of switch closing coil protective devices, it is characterized in that: said positive source joint (6) is connected with circuit anode (2), and said power cathode joint (7) is connected with circuit negative pole (3).
4. according to claims 1 or 2 described a kind of switch closing coil protective devices; It is characterized in that: also be connected to normal open switch (15) on the said wire loop input (4); Said normal open switch (15) other end is connected with circuit anode (2); Also be provided with normally closed switch (16) on the said wire loop output (5), said normally closed switch (16) other end links to each other with coil (8).
5. a kind of switch closing coil protective device according to claim 1 is characterized in that: said control module (14) is used IGBT and coil (8) polyphone.
6. a kind of switch closing coil protective device according to claim 1 is characterized in that: also be provided with emergency bypass (11) in the said device body (1), said emergency bypass (11) and detection module (10), control module (14) are parallelly connected.
7. a kind of switch closing coil protective device according to claim 1, it is characterized in that: said device body also is provided with trouble light and alarm on (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200116663U CN202435019U (en) | 2012-01-11 | 2012-01-11 | Switch closing coil protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200116663U CN202435019U (en) | 2012-01-11 | 2012-01-11 | Switch closing coil protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435019U true CN202435019U (en) | 2012-09-12 |
Family
ID=46784428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200116663U Expired - Lifetime CN202435019U (en) | 2012-01-11 | 2012-01-11 | Switch closing coil protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269122A (en) * | 2013-05-02 | 2013-08-28 | 南京懋德智慧能源有限公司 | Power distribution automatic terminal and method for improving reliability of breaker |
| CN105811587A (en) * | 2016-05-25 | 2016-07-27 | 国家电网公司 | Relay protection device with opening and closing coil protection |
-
2012
- 2012-01-11 CN CN2012200116663U patent/CN202435019U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269122A (en) * | 2013-05-02 | 2013-08-28 | 南京懋德智慧能源有限公司 | Power distribution automatic terminal and method for improving reliability of breaker |
| CN103269122B (en) * | 2013-05-02 | 2015-01-14 | 叶明宝 | Power distribution automatic terminal and method for improving reliability of breaker |
| CN105811587A (en) * | 2016-05-25 | 2016-07-27 | 国家电网公司 | Relay protection device with opening and closing coil protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |