CN102956398A - Electromagnetic contactor control method and electromagnetic contactor using the same - Google Patents
Electromagnetic contactor control method and electromagnetic contactor using the same Download PDFInfo
- Publication number
- CN102956398A CN102956398A CN2012100076887A CN201210007688A CN102956398A CN 102956398 A CN102956398 A CN 102956398A CN 2012100076887 A CN2012100076887 A CN 2012100076887A CN 201210007688 A CN201210007688 A CN 201210007688A CN 102956398 A CN102956398 A CN 102956398A
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- China
- Prior art keywords
- electromagnetic contactor
- state information
- described electromagnetic
- control signal
- control
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/032—Remote control
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention discloses an electromagnetic contactor control method and an electromagnetic contactor using the same. The electromagnetic contactor comprises a state input unit for receiving state information from the electromagnetic contactor; an electromagnetic contactor controller for controlling on/off of the electromagnetic contactor; and a main controller for controlling operation of the electromagnetic controller according to the state information of the electromagnetic contactor, thus the electromagnetic contactor can be monitored and controlled in real time, a monitoring system can be used to realize state monitoring and remote control, thus good operability can be realized, wire use can be greatly reduced, costs can be reduced, working time can be reduced, and space utilization rate can be improved.
Description
The application requires to submit on August 26th, 2011, application number is early rights and interests and the priority of submission date of the korean patent application of 10-2011-0085648, and its full content is incorporated herein by reference.
Technical field
Be broadly directed to the electromagnetic contactor of a kind of electromagnetic contactor control method and use the method according to the instruction of exemplary embodiment of the present disclosure, and relate more specifically to a kind of following electromagnetic contactor control method and the electromagnetic contactor of use the method: connection/cutting-off controlling that described method is configured to monitor the state of electromagnetic contactor and can carries out in real time electromagnetic contactor.
Background technology
Usually, on the electric wire that electromagnetic contactor is connected to system links to each other, and the circuit in disconnection and the closed-system.That is to say that electromagnetic contactor is power distribution plate or parts of the system of the driving/control device of motor for example.On the electric wire that electromagnetic contactor is connected to circuit system links to each other, and the circuit in disconnection and the closed-system.By disconnect the electromagnetic contactor with closing contact with electromagnetic principle, by apply constant voltage to coil, so that the contact can contact when current flowing and can separate when electric current does not circulate.
The state processing of conventional electromagnetic contactor is used the I/O (I/O) of PLC (programmable logic control), PLC is connected on the electric wire of main contacts or on the electric wire of auxiliary contact and the accepting state input signal to monitor, and electromagnetic contactor uses auxiliary relay to be subject to the control of PLC, wherein by with the state information of communicating by letter to monitor electronic information and control information of remote monitoring panel or control panel.
Conventional electromagnetic contactor has installs and disposes too complicated shortcoming.More specifically, for the I/O with PLC comes monitoring state information and controls electromagnetic contactor, each electromagnetic contactor all needs four I/O and the electric wire of PLC, and also needs a relay in order to operate electromagnetic contactor.
Be equipped with in the situation of a plurality of electromagnetic contactors, the quantity of electric wire and relay and the proportional increase of the quantity of electromagnetic contactor are so that mistake can adversely occur or spatial limitation occur when mounted when electric wire connects.And, if problem occurs PLC, then can not monitor the state of electromagnetic contactor and while the control electromagnetic contactor, thereby system is caused fatal damage.
Summary of the invention
The disclosure is in order to solve the problems referred to above of prior art, therefore the purpose of specific embodiment of the present disclosure provides the electromagnetic contactor of a kind of electromagnetic contactor control method and use the method, and described method is configured to carry out in real time state processing and the control of electromagnetic contactor.
The technical theme that is solved by the disclosure is not limited only to above description, and those skilled in the art will more clearly understand at present still NM any other technical problem by following description.That is to say, with reference to accompanying drawing, in following given exemplary description, will be more readily understood the disclosure and other purposes of the present disclosure, feature, details and advantage will become more apparent, be not intended to comprise to any restriction of the present disclosure.
The objective of the invention is fully or partly to solve at least more than one described problem and/or shortcoming and be provided at least hereinafter described advantage.In order to realize at least fully or partly above-mentioned purpose, and according to the purpose of the present invention such as institute's implementation and wide in range description, in a global schema of the present invention, a kind of electromagnetic contactor is provided, its control supplies to the cut-off/close of the electric current of load, described electromagnetic contactor comprises: the state input unit, and it receives the state information from described electromagnetic contactor; The electromagnetic contactor controller, it controls the connection of described electromagnetic contactor/cut-out; And master controller, it controls the operation of described electromagnetic contactor controller based on the described state information of described electromagnetic contactor.
Preferably, described electromagnetic contactor also comprises communication unit, and its state information with described electromagnetic contactor exports the external monitoring device to, and receives the electromagnetic contactor control signal that is used for controlling described electromagnetic contactor from described external monitoring device.
Preferably, if the described state information of described electromagnetic contactor is different from the described electromagnetic contactor control signal that receives from described external monitoring device, then control described electromagnetic contactor controller based on described electromagnetic contactor control signal.
Preferably, if the described state information of described electromagnetic contactor is identical with the described electromagnetic contactor control signal that receives from described external monitoring device, then described master controller is not controlled described electromagnetic contactor controller.
Preferably, described master controller is installed on the described electromagnetic contactor.
Preferably, described state input unit receives the described state information of described electromagnetic contactor by each default cycle.
In another total scheme of summarizing of the present invention, a kind of control method of electromagnetic contactor is provided, its control supplies to the cut-off/close of the electric current of load, and described method comprises: the state information (the first input step) that receives described electromagnetic contactor; Receive the electromagnetic contactor control signal (the second input step) of the operation of the described electromagnetic contactor of control from the outside; And the operation (determination step) of judging described electromagnetic contactor based on the state information of the described electromagnetic contactor of inputting.
Preferably, if the described state information of described electromagnetic contactor is different from described electromagnetic contactor control signal, then described determination step is judged the operation of described electromagnetic contactor based on described electromagnetic contactor control signal.
Preferably, if the described state information of described electromagnetic contactor is identical with described electromagnetic contactor control signal, then described determination step is not made the result of determination relevant with the operation of described electromagnetic contactor.
Be according to electromagnetic contactor control method of the present disclosure and the beneficial effect that the electromagnetic contactor that uses the method has, can carry out Real-Time Monitoring and the control of electromagnetic contactor, and can use monitoring system to carry out status monitoring and Long-distance Control, so that realize: the extreme minimizing that splendid operability, electric wire use, the reduction of cost and the reduction of operating time and the space availability ratio of improving.
Description of drawings
Included accompanying drawing provides further understanding of the disclosure and has been merged in and has consisted of the application's a part, and accompanying drawing illustrates embodiment of the present disclosure and is used from explanation principle of the present disclosure with specification one.In the accompanying drawings:
Fig. 1 is the schematic diagram that illustrates according to the electromagnetic contactor of exemplary embodiment of the present disclosure;
Fig. 2 illustrates the schematic diagram that is included in according to the control module 200 in the electromagnetic contactor of exemplary embodiment of the present disclosure; And
Fig. 3 is the flow chart that illustrates according to the control method of the electromagnetic contactor of exemplary embodiment of the present disclosure.
Embodiment
Describe more fully with reference to the accompanying drawings hereinafter various exemplary embodiment, wherein show some exemplary embodiments.Yet, can implement design of the present invention with much multi-form, and design of the present invention should not be construed as limited to the exemplary embodiment of setting forth at this.But, provide these exemplary embodiments so that this description is detailed in complete, and this description scope that will pass on the present invention to conceive to those skilled in the art fully.
Should be understood that, when element or layer be called as " ... on ", " being connected to " or " being connected to " another element or when layer, it can directly be connected to or be connected to another element or layer directly on another element or layer, perhaps can have insertion element or layer.On the contrary, when element be called as " directly exist ... on ", " directly being connected to " or " directly being connected to " another element or when layer, then do not have insertion element or layer.Similar Reference numeral refers to similar element in full.
Should be understood that although can describe different elements, parts, zone, layer and/or section with the term first, second, third, etc. at this, these elements, parts, zone, layer and/or section are not limited by these terms should.These terms only are used for and will distinguish between an element, parts, zone, layer or section and another zone, layer or the section.Therefore, in the situation of the instruction that does not deviate from the present invention's design, the first element, first component, first area, ground floor or the first paragraph of the following stated also can be called as the second element, second component, second area, the second layer or second segment.
As used in this, singulative " (a) ", " one (an) " or " this (the) " intention also comprise plural form, unless context is clearly pointed out in addition.It should also be understood that, although term " has comprised " and/or " including " specifies the existence of feature, integral body, step, operation, element and/or the parts stated when using in this manual, do not get rid of the existence of other features, integral body, step, operation, element, parts and/or its set more than or additional yet.
Unless otherwise defined, otherwise as used herein all terms (comprising technical term and scientific and technical terminology) all have the implication that the implication of understanding is identical usually with the technical staff institute in field under the present invention conceives.It is to be further understood that, common defined those terms in the dictionary that uses for example, should be annotated is to have the implication consistent with they implications in the content of correlation technique, unless and clearly defined in this institute, will can not annotate with the Utopian or too inflexible meaning.
Unclear for fear of embodiment of the present disclosure, omitted the description to known parts and manufacturing process.
Below, will describe electromagnetic contactor control method and the electromagnetic contactor that uses the method in detail with reference to accompanying drawing.
Fig. 1 is the schematic diagram that illustrates according to the electromagnetic contactor of exemplary embodiment of the present disclosure.
With reference to Fig. 1, electromagnetic contactor 110 comprises control module 200, and control module 200 is connected to monitoring device 130 via telecommunication cable, and wherein electromagnetic contactor 110 is a kind of by via electric current contactor being linked the device that electromagnet comes closing contact and can carry out based on the electric current that flows in the load 10 cut-off/close.
Simultaneously, electromagnetic contactor 110 can be connected to motor protection circuit breaker 100.Circuit breaker 100 is a kind of devices come protection system and load by operation because of overcurrent, when opening phase, transient current and short circuit current and breaking down electric current.Yet, it is evident that, can save circuit breaker 100, and can in the additive method the method in Fig. 1 circuit breaker 100 be connected to electromagnetic contactor 110.
Although with reference to Fig. 2 the operation of electromagnetic contactor 110 is further described in more detail, now still concise and to the point description is carried out in the operation of electromagnetic contactor 110.
Status signal at electromagnetic contactor 110 is connection, and in the situation of electromagnetic contactor control signal for cut-out that the monitoring device 130 that receives user's input by being connected to control module 200 is inputted, control module 200 stops the operation of electromagnetic contactor 110.On the other hand, in the situation of control signal for connection, control module 200 is not carried out the control relevant with the operation of electromagnetic contactor 110.
That is to say that judge to be used for making the control signal of electromagnetic contactor 110 operations to be the control signal of mistake input, control module 200 is not carried out the control of electromagnetic contactor 110 when electromagnetic contactor 110 is in operation.Be at electromagnetic contactor in the situation of operation, control module 200 keeps operation and does not make any change.
Status signal at electromagnetic contactor 110 is cut-out, and in the situation of electromagnetic contactor control signal for connection that the monitoring device 130 that receives user's input by being connected to control module 200 is inputted, control module 200 begins to control the operation of electromagnetic contactor 110.On the other hand, in the situation of control signal for cut-out, aforesaid, control module 200 is not carried out the control relevant with the operation of electromagnetic contactor 110.
Now, will be further described in more detail the control module 200 that is included in the electromagnetic contactor 110 with reference to Fig. 2 according to exemplary embodiment of the present disclosure.
With reference to Fig. 2, for the control module 200 according to one of element of the electromagnetic contactor 110 of exemplary embodiment of the present disclosure comprises electromagnetic contactor state contact terminal 210, state input unit 220, master controller 230, electromagnetic contactor controller 240 and communication unit 260.Control module 200 can also comprise power subsystem 280, and power subsystem 280 provides the operating power that control module 200 can be operated.Alternatively, power subsystem 280 can be installed in the outside of electromagnetic contactor 110.
Electromagnetic contactor state contact terminal 210 is to be connected to the point of electromagnetic contactor 110 to receive the state information of electromagnetic contactor 110.State input unit 220 is used for the state information of input electromagnetic contactor 110.The state information of electromagnetic contactor 110 comprises on-state and dissengaged positions, and wherein on-state refers to electromagnetic contactor 110 and is in the operation, is in the not operation and dissengaged positions refers to electromagnetic contactor 110.
More specifically, the state information of electromagnetic contactor 110 be cut-out and the electromagnetic contactor control signal inputted from external monitoring device 270 for situation about connecting under, master controller 230 control electromagnetic contactor controllers 240 and electromagnetic contactor 110 is operated.In addition, the state information of electromagnetic contactor 110 be connection and the electromagnetic contactor control signal inputted from external monitoring device 270 for situation about cutting off under, master controller 230 control electromagnetic contactor controllers 240 and stop the operation of electromagnetic contactor 110.
In addition, the state information of electromagnetic contactor 110 be connection and the electromagnetic contactor control signal inputted from external monitoring device 270 also for situation about connecting under, master controller 230 is not controlled electromagnetic contactor controller 240.That is to say that in the case, although there is user instruction, the state information that master controller is still judged electromagnetic contactor 110 is as mistake, and do not carry out any operation.At this moment, master controller 230 can report to superior system with error condition.
Therefore, Real-Time Monitoring and control electromagnetic contactor can be realized, and status monitoring and Long-distance Control can be carried out by monitoring system, thereby operability is splendid, can significantly reduce the use of electric wire, can reduce its cost and operating time, and can improve space availability ratio.
And power subsystem 280 is used for supply power so that control module 200 can operate.Although above description has been set forth power subsystem 280 and has been included in the control module 200, it is evident that power subsystem 280 also can be installed in the outside of control module 200 so that by independent cable supply capability.
Fig. 3 is the flow chart that illustrates according to the control method of the electromagnetic contactor of exemplary embodiment of the present disclosure.
At first, receive state information and the electromagnetic contactor control signal (S300 of electromagnetic contactor, S310), wherein the state information of electromagnetic contactor comprises on-state and dissengaged positions, and wherein on-state is defined as electromagnetic contactor 110 and is in the operation, is in the not operation and dissengaged positions is defined as electromagnetic contactor 110.The signal whether the electromagnetic contactor control signal operates electromagnetic contactor 110 for indication.
For connecting (S320-is), and the electromagnetic contactor control signal also indicates in the situation of connection (S330-is), do not carry out the control operation to electromagnetic contactor 110 in the state information of electromagnetic contactor 110.
On the other hand, for connecting (S320-is), and the indication of electromagnetic contactor control signal cuts off in the situation of (S330-is no) in the state information of electromagnetic contactor 110, and control electromagnetic contactor 110 is with shut-down operation.Simultaneously, for cutting off (S320-is no), and the electromagnetic contactor control signal also indicates in the situation of connections (S340-is no) in the state information of electromagnetic contactor 110, and control electromagnetic contactor 110 is to begin to operate (S370).
On the other hand, for cutting off (S320-is no), and the indication of electromagnetic contactor control signal cuts off in the situation of (S340-is), do not carry out the control operation (S360) to electromagnetic contactor 110 in the state information of electromagnetic contactor 110.That is to say, can not make any decision relevant with the operation of electromagnetic contactor 110, except determination result can being reported to superior system.
The above description so that those skilled in the art can make or use the present invention of the present invention is provided.To those skilled in the art, the various improvement that the present invention is made will be for apparent, and the basic principle in this definition can be applied to other modification under the prerequisite that does not deviate from the spirit or scope of the present invention.Therefore, the invention is intended to not lie in restriction example described herein, but be to meet the maximum magnitude consistent with principle disclosed herein and novel feature.
As apparent from above-mentioned institute, electromagnetic contactor according to electromagnetic contactor control method of the present disclosure and use the method has industrial applicibility, it can carry out Real-Time Monitoring and the control of electromagnetic contactor, use monitoring system can carry out status monitoring and Long-distance Control, thereby realize: the extreme minimizing that splendid operability, electric wire use, the reduction of cost and the reduction of operating time and the space availability ratio of improving.
Claims (9)
1. electromagnetic contactor, its control supplies to the cut-off/close of the electric current of load, and described electromagnetic contactor comprises: the state input unit, it receives the state information from described electromagnetic contactor; The electromagnetic contactor controller, it controls the connection of described electromagnetic contactor/cut-out; And master controller, it controls the operation of described electromagnetic contactor controller based on the described state information of described electromagnetic contactor.
2. electromagnetic contactor according to claim 1, also comprise communication unit, its state information with described electromagnetic contactor exports the external monitoring device to, and receives the electromagnetic contactor control signal that is used for controlling described electromagnetic contactor from described external monitoring device.
3. electromagnetic contactor according to claim 2, if wherein the described state information of described electromagnetic contactor is different from the described electromagnetic contactor control signal that receives from described external monitoring device, then control described electromagnetic contactor controller based on described electromagnetic contactor control signal.
4. electromagnetic contactor according to claim 2, if wherein the described state information of described electromagnetic contactor is identical with the described electromagnetic contactor control signal that receives from described external monitoring device, then described master controller is not controlled described electromagnetic contactor controller.
5. electromagnetic contactor according to claim 1, wherein said master controller is installed on the described electromagnetic contactor.
6. electromagnetic contactor according to claim 1, wherein said state input unit receive the described state information of described electromagnetic contactor by each default cycle.
7. electromagnetic contactor control supplies to the control method of cut-off/close of the electric current of load, and described method comprises: the first input step receives the state information of described electromagnetic contactor; The second input step receives the electromagnetic contactor control signal of the operation of the described electromagnetic contactor of control from the outside; And determination step, judge the operation of described electromagnetic contactor based on the state information of the described electromagnetic contactor of inputting.
8. method according to claim 7, if wherein the described state information of described electromagnetic contactor is different from described electromagnetic contactor control signal, then described determination step is judged the operation of described electromagnetic contactor based on described electromagnetic contactor control signal.
9. method according to claim 7, if wherein the described state information of described electromagnetic contactor is identical with described electromagnetic contactor control signal, then described determination step is not made the result of determination relevant with the operation of described electromagnetic contactor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110085648A KR101228807B1 (en) | 2011-08-26 | 2011-08-26 | Magnetic contactor control method and magnetic contactor using the same |
| KR10-2011-0085648 | 2011-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102956398A true CN102956398A (en) | 2013-03-06 |
| CN102956398B CN102956398B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210007688.7A Expired - Fee Related CN102956398B (en) | 2011-08-26 | 2012-01-11 | The electromagnetic contactor of electromagnetic contactor control method and use the method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101228807B1 (en) |
| CN (1) | CN102956398B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959416A (en) * | 2017-04-25 | 2017-07-18 | 深圳供电局有限公司 | Low-voltage contactor contact state online monitoring device and method |
| CN108369879A (en) * | 2015-12-18 | 2018-08-03 | 佩佩尔+富克斯有限公司 | Method and apparatus for the function of monitoring redundant interconnections contact |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241031B (en) * | 2014-06-13 | 2016-09-07 | 漳州市锦成电力设备有限公司 | The A.C. contactor that a kind of tape jam shows |
| KR101670080B1 (en) * | 2016-02-19 | 2016-10-27 | (주)신명전력산업 | Distribution board capable of power factor compensation |
| KR101851301B1 (en) * | 2017-08-24 | 2018-04-23 | 보우제전(주) | Electromagnetic switch of starting device for star-delta connection and starting device including the same |
| KR102121524B1 (en) * | 2018-06-22 | 2020-06-10 | 엘에스일렉트릭(주) | Modularized auxiliary contact and current circuit breaker having simple structure |
| KR102385805B1 (en) | 2020-05-21 | 2022-04-12 | 최충현 | Drive control device of magnet contact |
| KR102580960B1 (en) * | 2021-06-14 | 2023-09-19 | 황기형 | Electric contactor trouble check and protection relay |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1139012A (en) * | 1997-07-24 | 1999-02-12 | Mitsubishi Electric Corp | Remote control system |
| KR20060091027A (en) * | 2005-02-12 | 2006-08-17 | 김용학 | Composite electromagnetic switch and controlling method thereof |
| CN201425921Y (en) * | 2009-06-12 | 2010-03-17 | 百利通电子(上海)有限公司 | Electromagnetic relay zero-crossing switch circuit |
| CN101714842A (en) * | 2008-10-03 | 2010-05-26 | 通用电气公司 | Motor control center communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09120305A (en) * | 1995-10-26 | 1997-05-06 | Toshiba Corp | Process control operation monitor device |
-
2011
- 2011-08-26 KR KR1020110085648A patent/KR101228807B1/en active IP Right Grant
-
2012
- 2012-01-11 CN CN201210007688.7A patent/CN102956398B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1139012A (en) * | 1997-07-24 | 1999-02-12 | Mitsubishi Electric Corp | Remote control system |
| KR20060091027A (en) * | 2005-02-12 | 2006-08-17 | 김용학 | Composite electromagnetic switch and controlling method thereof |
| CN101714842A (en) * | 2008-10-03 | 2010-05-26 | 通用电气公司 | Motor control center communication system |
| CN201425921Y (en) * | 2009-06-12 | 2010-03-17 | 百利通电子(上海)有限公司 | Electromagnetic relay zero-crossing switch circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108369879A (en) * | 2015-12-18 | 2018-08-03 | 佩佩尔+富克斯有限公司 | Method and apparatus for the function of monitoring redundant interconnections contact |
| CN106959416A (en) * | 2017-04-25 | 2017-07-18 | 深圳供电局有限公司 | Low-voltage contactor contact state online monitoring device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102956398B (en) | 2016-06-22 |
| KR101228807B1 (en) | 2013-01-31 |
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Granted publication date: 20160622 Termination date: 20210111 |