CN113472072B - Double-working-mode breaker operation box - Google Patents
Double-working-mode breaker operation box Download PDFInfo
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- CN113472072B CN113472072B CN202110615138.2A CN202110615138A CN113472072B CN 113472072 B CN113472072 B CN 113472072B CN 202110615138 A CN202110615138 A CN 202110615138A CN 113472072 B CN113472072 B CN 113472072B
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- jack
- circuit
- metal pin
- trip
- circuit breaker
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- 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
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
The application relates to a circuit breaker operation box and a power system. The breaker operation box includes: the jumper wire comprises a first jack, a second jack, a third jack, a fourth jack and a fifth jack, and the jumper wire comprises a first metal pin, a second metal pin, a third metal pin and a fourth metal pin; the first metal pins and the second metal pins are connected in series, the third metal pins and the fourth metal pins are connected in series, and the jumper is used for modifying the loop wiring of the jumper selection circuit according to the working mode required by the breaker operation box, so that the real-time monitoring of the breaker in two working modes is realized. Wherein the first mode of operation is applicable to circuit breakers that do not have trip coil monitoring themselves; the second mode of operation may be applicable to circuit breakers with trip coil monitoring.
Description
Technical Field
The application relates to the technical field of power systems, in particular to a breaker operation box with a double working mode.
Background
With the development of electric power systems, in order to ensure safe and stable operation of the electric power systems, it is generally necessary to provide a circuit breaker of the electric power system with an operation box, and main functions of the operation box include: 1. monitoring the closing position of the circuit breaker; 2. a trip circuit monitor for detecting integrity of the entire trip circuit from the trip contact to the trip coil; 3. a trip command hold; 4. and (5) closing position indication.
In the conventional technology, a common operation box is mainly applied to a circuit breaker without a tripping coil monitoring relay, and at present, some circuit breakers are often provided with the tripping coil monitoring relay in a control panel cabinet, if the conventional operation box is configured to the circuit breaker with the tripping coil monitoring relay, workers are required to modify the internal circuit of the operation box, and some circuit and functional design conflicts exist between the modified operation box and the tripping coil monitoring relay of the circuit breaker.
Therefore, the conventional operation box cannot be adapted to the circuit breakers of different modes, and the application scene thereof is limited.
Disclosure of Invention
Based on this, it is necessary to provide a circuit breaker operation box and a power system that can adapt to different modes and can be applied to any scene, in view of the above-described technical problems.
In a first aspect, a circuit breaker operation box for a dual operation mode, the circuit breaker operation box comprising: jumper wire selection circuit, jumper wire, trip hold relay, closing position monitoring relay and trip indicating circuit;
the jumper selection circuit includes: the tripping device comprises a tripping holding relay, a first jack, a second jack, a third jack, a fourth jack and a fifth jack, wherein the first jack is connected with the negative end of the tripping holding relay, the second jack is connected with the negative end of the closing monitoring relay, the third jack is connected with the tripping indicating circuit, the fourth jack is connected with the fifth jack in series, and the fifth jack is connected with the positive end of the tripping holding relay;
the jumper wire comprises a first metal pin, a second metal pin, a third metal pin and a fourth metal pin; the first metal pin and the second metal pin are connected in series, and the third metal pin and the fourth metal pin are connected in series;
the closing monitoring terminal of the breaker operation box is disconnected with the tripping circuit outgoing terminal;
the jumper is used for modifying the loop wiring of the jumper selection circuit according to the working mode required by the breaker operation box; different modes of operation are used to configure different types of circuit breakers.
In one embodiment, if the circuit breaker is not configured with a trip coil monitoring relay, the jumper is configured to modify the loop wiring of the jumper selection circuit such that the in-place monitoring relay is connected to the trip loop outgoing terminal and such that the trip hold relay is connected to the trip indication circuit and the trip loop outgoing terminal, respectively.
In one embodiment, if the circuit breaker is configured with a trip coil monitoring relay, the jumper is configured to modify the loop wiring of the jumper selection circuit such that the in-place monitoring relay is connected to the trip indication circuit and such that the in-place monitoring relay is disconnected from the trip loop outgoing terminal.
In one embodiment, the trip indicating circuit is used for indicating a closing position.
In one embodiment, the jumper further comprises an insulating housing, and the first metal pin, the second metal pin, the third metal pin, the fourth metal pin are disposed on the insulating housing;
the first metal pin, the second metal pin, the third metal pin and the fourth metal pin are used for being inserted into target jacks in the jumper wire selection circuit under different working modes to modify loop wiring of the jumper wire selection circuit, and the target jacks are four jacks in the first jack, the second jack, the third jack, the fourth jack and the fifth jack.
In one embodiment, if the circuit breaker is not configured with a trip coil monitoring relay, the first metal pin, the second metal pin, the third metal pin, the fourth metal pin are sequentially inserted into the first jack, the second jack, the third jack, and the fourth jack.
In one embodiment, if the circuit breaker is configured with a trip coil monitoring relay, the first metal pin, the second metal pin, the third metal pin, the fourth metal pin are sequentially inserted into the second jack, the third jack, the fourth jack, and the fifth jack.
In one embodiment, the trip indicator circuit includes a trip indicator light and a resistor; the resistor is respectively connected with the tripping indicator lamp and the third jack.
In a second aspect, an electric power system includes: circuit breaker and circuit breaker operating box according to claim 1.
In one embodiment, the circuit breaker is a circuit breaker that is not configured with a trip coil monitoring relay or a circuit breaker that is configured with a trip coil monitoring relay.
The breaker operation box and the power system realize real-time monitoring of the breaker in two working modes. The first working mode is applicable to a circuit breaker without trip coil monitoring, and can normally realize the functions of trip circuit monitoring, trip command holding, closing position monitoring and closing position indication of a circuit breaker operation box; the second working mode is applicable to the circuit breaker with the trip coil monitoring function, and the trip command holding, the closing position monitoring and the closing position indicating functions of the circuit breaker operation box can be normally realized. Therefore, the circuit breaker operation box solves the problems that the existing circuit breaker operation box cannot be completely adapted to a circuit breaker with trip coil monitoring and cannot normally provide functions of the circuit breaker operation box. In addition, the breaker operation box can also completely and independently open the closing position monitoring loop and the tripping loop, so that the risk brought by a parasitic loop is eliminated.
Drawings
FIG. 1A is a schematic diagram of the circuit connections of an interrupt service enclosure of one embodiment;
FIG. 1B is a schematic diagram of the circuit connections of an interrupt service enclosure, according to one embodiment;
FIG. 2 is a schematic diagram of the circuit connections of an interrupt service enclosure of one embodiment;
FIG. 3 is a schematic diagram of the circuit connections of an interrupt service enclosure of one embodiment;
FIG. 4 is a schematic diagram of the circuit connections of an interrupt service enclosure of one embodiment;
a jumper selection circuit 101 jumper 102;
trip indication circuit 12 of the in-place monitoring relay 11;
a trip hold relay 13 breaker 14;
a first jack 1 and a second jack 2;
a third jack 3 and a fourth jack 4;
a fifth jack 5 a first metal pin a;
a second metal leg b and a third metal leg c;
and a fourth metal leg d.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Circuit breakers used in existing power systems are typically equipped with a circuit breaker operating box. Currently, if no trip coil monitoring relay is configured in some circuit breakers, a circuit breaking operation box applied to the type of circuit breaker can be designed by adopting a circuit connection mode of the circuit breaking operation box as shown in fig. 1A, wherein the circuit breaking operation box is connected with a circuit breaker control mechanism for realizing: 1. monitoring a breaker closing position in a breaker operating mechanism; 2. monitoring the trip circuit (the trip circuit includes a line between the trip contact to the trip coil); 3. a trip command hold; 4. and (5) closing position indication. At present, a trip coil monitoring relay is configured in some circuit breakers, and a circuit breaking operation box applying the circuit breaker can be designed by adopting a circuit connecting mode of the circuit breaking operation box shown in fig. 1B, and in the existing practical application situation, the circuit connecting mode shown in fig. 1B is a circuit connecting schematic diagram of the circuit breaking operation box obtained by modifying a working personnel based on the circuit connecting mode shown in fig. 1A, wherein, because the trip coil monitoring relay is used as a standard component of an import circuit breaker, parameters of a closing position monitoring relay HWJ in the operation box and parameters of the trip coil monitoring relay of the circuit breaker cannot be matched, so that the modified circuit connecting mode has some conflicts in circuit and function design, and the problems of parasitic circuit, closing position indicating lamp being on (normally supposed to be off) when the circuit breaker is at a switching position, redundancy of a trip circuit monitoring function and the like are caused, and if the circuit breaking operation box is not configured, for example, functions of command holding, closing position monitoring and closing position indicating are caused, so that the requirements of a wide user cannot be satisfied. In summary, existing circuit breaking operator boxes have problems with suitability for circuit breakers with built-in trip coil monitoring. Based on this, the present application provides a circuit breaker operation box with optional operation mode, which can be simultaneously applied to a circuit breaker without trip coil monitoring and a circuit breaker with trip coil monitoring. The following examples mainly describe the breaker operation box proposed in the present application.
First, introducing the breaker operation box proposed in the present application, referring to fig. 2, there is provided a breaker operation box comprising: a jumper selection circuit 101, a jumper 102, a trip hold relay 13, a closing monitor relay 11, and a trip indication circuit 12; wherein the jumper selection circuit 101 includes: the first jack 1, the second jack 2, the third jack 3, the fourth jack 4 and the fifth jack 5, wherein the first jack 1 is connected with the negative end of the trip holding relay 13, the second jack 2 is connected with the negative end of the closing monitoring relay 11, the third jack 3 is connected with the trip indicating circuit 12, the fourth jack 4 and the fifth jack 5 are connected in series, and the fifth jack 5 is connected with the positive end of the trip holding relay 13; the jumper 102 comprises a first metal pin a, a second metal pin b, a third metal pin c and a fourth metal pin d; the first metal pin a and the second metal pin b are connected in series, and the third metal pin c and the fourth metal pin d are connected in series. The closing monitoring terminal XD 4 of the breaker operation box is disconnected with the tripping circuit outgoing terminal XD 5; a jumper 102 for modifying the loop wiring of the jumper selection circuit 101 according to the operation mode required by the breaker operation box; different modes of operation are used to configure different types of circuit breakers 14.
The circuit breaker 14 includes two types of circuit breakers, one of which is a circuit breaker in which a trip coil monitoring relay is not provided, and the other of which is a circuit breaker in which a trip coil monitoring relay is provided. The breaker operation box is used for configuring different types of breakers in different operation modes. The jumper selection circuit 101 is configured to adapt to the circuit breaker 14 in different operation modes in cooperation with the jumper 102.
The trip indicating circuit 12 comprises a trip indicating lamp and a resistor, wherein the trip indicating lamp and the resistor are connected in series, the positive end of the trip indicating circuit 12 is connected with the positive end of the trip power supply, and the negative end of the trip indicating circuit 12 is connected with the third jack 3 of the jumper selecting circuit 101; the positive end of the closing monitoring relay 11 is connected with the positive end of the tripping power supply, and the negative end of the closing monitoring relay 11 is respectively connected with the second jack 2 of the jumper wire selection circuit 101 and the closing monitoring terminal XD 4; the trip hold relay 13 is included in the jumper selection circuit 101 with its positive terminal connected to the positive terminal of the trip power supply through the trip contact TBJ, and the negative terminal of the trip hold relay 13 is connected to the trip circuit outlet terminal XD:5.
In this embodiment, when the circuit breaker 14 is a circuit breaker in which the trip coil monitoring relay is not provided, the circuit breaker operation box is in an operation mode in which the closing and tripping are monitored simultaneously, and in this operation mode, the jumper 102 is used in cooperation with the jumper selection circuit 101 so that the negative terminal of the closing monitoring relay HWJ is connected to the trip circuit outlet terminal XD:5, monitoring the closing position of the circuit breaker can be realized; the jumper 102 is used together with the jumper selection circuit 101, so that the negative end of the trip indicating circuit 12 can be connected to the positive end of the trip holding relay TBJ, and the negative end of the trip holding relay TBJ is connected with the circuit breaker through the trip circuit outlet terminal XD:5, thereby realizing the monitoring of the trip circuit, the holding of the trip command and the indication of the trip position. It should be noted that, the circuit connection mode of the circuit breaker operation box in this operation mode may be the same as the circuit junction connection mode of the conventional circuit breaker operation box shown in fig. 1A, and the operation principle is the same.
When the circuit breaker 14 is a circuit breaker provided with a tripping coil monitoring relay, the circuit breaker operation box is in a monitoring closing operation mode, and in the operation mode, a jumper wire 102 is matched with the jumper wire selection circuit 101 to be used, so that the negative end of the closing monitoring relay HWJ is respectively connected to the closing monitoring terminal XD 4 and the output end of the tripping indicating circuit 12, and the monitoring and indication of the closing position of the circuit breaker can be realized; the jumper 102, in conjunction with the jumper selection circuit 101, may also enable the positive terminal of the trip hold relay TBJ to be connected to the positive terminal of the trip power supply through the trip contact TBJ. The negative terminal of the trip hold relay TBJ is connected to the trip circuit outlet terminal XD:5, and the trip circuit outlet terminal XD:5 is connected to a trip coil monitor relay provided in the circuit breaker, so that monitoring, trip command hold, and trip position indication of the trip circuit through the trip coil monitor relay can be achieved.
The breaker operation box provided by the embodiment realizes real-time monitoring of the breaker in two working modes. The first working mode is applicable to a circuit breaker without trip coil monitoring, and can normally realize the functions of trip circuit monitoring, trip command holding, closing position monitoring and closing position indication of a circuit breaker operation box; the second working mode is applicable to the circuit breaker with the trip coil monitoring function, and the trip command holding, the closing position monitoring and the closing position indicating functions of the circuit breaker operation box can be normally realized. Therefore, the circuit breaker operation box solves the problems that the existing circuit breaker operation box cannot be completely adapted to a circuit breaker with trip coil monitoring and the circuit breaker operation box cannot be provided normally with functions, and therefore the circuit breaker operation box has higher suitability. In addition, the breaker operation box can also completely and independently open the closing position monitoring loop and the tripping loop, so that the risk brought by a parasitic loop is eliminated.
Optionally, the jumper 102 further includes an insulating housing, and the first metal pin a, the second metal pin b, the third metal pin c, and the fourth metal pin d are disposed on the insulating housing, where the first metal pin a, the second metal pin b, the third metal pin c, and the fourth metal pin d are used to be inserted into target jacks in the jumper selection circuit 101 to modify loop wiring of the jumper selection circuit 101 in different operation modes, and the target jacks are four jacks in the first jack 1, the second jack 2, the third jack 3, the fourth jack 4, and the fifth jack 5.
In this embodiment, the number of the target jacks is the same as the number of the metal pins in the jumper 102, and the number of the metal pins in the jumper 102 is smaller than the number of the jacks in the jumper selection circuit 101, so that when all the metal pins of the jumper are inserted into different positions in the jumper selection circuit 101, the metal pins can be specifically inserted into the target jacks and tightly connected with each target jack, and different loop connection modes of the jumper selection circuit 101 under different working modes are realized. In this embodiment, by setting the jack in the jumper selection circuit 101 and setting the metal pin in the jumper 102, flexible adjustment of the loop connection mode of the jumper selection circuit 101 is realized to adapt to different types of circuit breakers.
In practical application, if the circuit breaker 14 is not provided with a trip coil monitoring relay, as shown in the circuit connection diagram of fig. 3, the first metal pin a, the second metal pin b, the third metal pin c and the fourth metal pin d are sequentially inserted into the first jack 1, the second jack 2, the third jack 3 and the fourth jack 4, so that the first jack 1 and the second jack 2 are connected, the third jack 3 and the fourth jack 4 are connected, and such jumper 102 is used for modifying the loop wiring of the jumper selection circuit 101, so that the in-place monitoring relay 11 is connected with the trip circuit outlet terminal XD:5, and so that the trip holding relay 13 is connected with the trip indication circuit 12 and the trip circuit outlet terminal XD:5, respectively.
The present embodiment relates to a case where the breaker 14 is not provided with a trip coil monitoring relay, that is, the relay operation box is in an operation mode of simultaneously monitoring closing and tripping, and in this operation mode, if a tripping phenomenon occurs, the auxiliary contacts at the breaker position in the breaker are closed, and the trip contact TBJ is closed, in this case, the third metal pin c and the fourth metal pin d in the jumper selection circuit 101 are respectively inserted into the third jack 3 and the fourth jack 4, and since the third metal pin c and the fourth metal pin d are short-connected in the jumper 102, and thus the third jack 3 and the fourth jack 4 are connected, the trip indication circuit 12, the trip holding relay 13, and the trip circuit occurrence terminal XD:5 are communicated, thereby realizing monitoring of the trip circuit, holding of the trip command, and indication of the trip position. In addition, in the above case, the first metal pin a and the second metal pin b in the jumper selection circuit 101 are also inserted into the first jack 1 and the second jack 2, respectively, and the first metal pin a and the second metal pin b are connected in the jumper 102 in a short manner, so that the first jack 1 and the second jack 2 are connected, and the combination monitor terminal XD 4 is connected with the trip circuit occurrence terminal XD 5, thereby realizing the monitoring of the combination position.
According to the embodiment, the different metal pins of the jumper are respectively inserted into the different jacks in the jumper wire selection circuit, so that the trip circuit monitoring function and the closing position detection function are realized in one working mode, and meanwhile, the closing position indicator lamp can also indicate the closing position.
In practical application, if the circuit breaker 14 is configured with a trip coil monitoring relay, as shown in a circuit connection diagram of fig. 4, the first metal pin a, the second metal pin b, the third metal pin c and the fourth metal pin d are sequentially inserted into the second jack 2, the third jack 3, the fourth jack 4 and the fifth jack 5, so that the second jack 2 is connected with the third jack 3, the fourth jack 4 and the fifth jack 5, and such a jumper 102 is used for modifying the loop wiring of the jumper selection circuit 101, so that the in-place monitoring relay 11 is connected with the trip indication circuit 12 and the in-place monitoring terminal XD:4, and the trip holding relay 13 is disconnected with the trip indication circuit 12 and connected with the trip circuit outlet terminal XD:5.
The present embodiment relates to a case where the circuit breaker 14 is provided with a trip coil monitoring relay, that is, the relay operation box is in an operation mode of monitoring closing, and in this operation mode, if a trip phenomenon occurs, the auxiliary contacts at the circuit breaker position in the circuit breaker are closed, and the trip contacts TBJ are closed, in this case, the first metal pin a and the second metal pin b in the jumper selection circuit 101 are respectively inserted into the second jack 2 and the third jack 3, and since the first metal pin a and the second metal pin b are short-connected in the jumper 102, and further, the second jack 2 and the third jack 3 in the jumper selection circuit 101 are connected, wherein the trip indication circuit includes a trip indication lamp and a resistor, and the resistor is connected with the trip indication lamp and the third jack 3, so that the trip indication circuit 12, the in-position monitoring relay 11, and the in-position monitoring terminal XD:4 are connected, and the monitoring of the closing position and the indication of the closing position by the circuit breaker operation box are realized, and it can be understood that the trip indication lamp indicates the closing position at this time. In addition, in the above case, the third metal pin c and the fourth metal pin d are inserted into the fourth jack 4 and the fifth jack 5, respectively, and the fourth jack 4 and the fifth jack 5 are connected in series, and the third metal pin c and the fourth metal pin d are connected in short in the jumper 102, thereby connecting the fourth jack 4 and the fifth jack 5, and disconnecting the on-position monitoring terminal XD 4 from the trip circuit occurrence terminal XD 5, thereby realizing the monitoring of the trip circuit by using the trip coil monitoring relay in the circuit breaker.
According to the embodiment, through inserting different metal pins of the jumper into different jacks in the jumper wire selection circuit respectively, in one working mode, the HWJ closing monitoring relay is not connected with the tripping circuit and does not have a tripping monitoring function, and the HWJ closing monitoring relay is connected with the indicator lamp together and is connected with an independent closing auxiliary contact provided by the circuit breaker and used for indicating and detecting the closing position of the circuit breaker. In addition, the functions of monitoring the tripping circuit, maintaining the tripping command and indicating the tripping position through the tripping coil monitoring relay in the circuit breaker in the working mode are realized, the problem that the tripping circuit cannot be monitored normally due to inconsistent parameters of the HWJ in-place monitoring relay and parameters of the tripping coil monitoring relay in the prior art is solved, and the suitability of the circuit breaker operation box provided by the application is further improved.
In one embodiment, the present application further provides an electrical power system including the circuit breaker operating box and circuit breaker of any of the above embodiments.
Those skilled in the art will also appreciate that the embodiments described in the specification are all alternative embodiments and that the acts and modules referred to are not necessarily required in the present application. In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, such as the division of the units, merely a logical function division, and there may be additional manners of dividing the actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units described above may be implemented either in hardware or in software program modules.
The integrated units, if implemented in the form of software program modules, may be stored in a computer-readable memory for sale or use as a stand-alone product. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the processes of the above embodiments may be performed by hardware associated with a program, which may be stored in a computer readable memory, and the memory may include: flash disk, read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples being provided solely to assist in the understanding of the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. A circuit breaker operation box for a double operation mode, characterized in that the circuit breaker operation box comprises: jumper wire selection circuit, jumper wire, trip hold relay, closing position monitoring relay and trip indicating circuit;
the jumper selection circuit includes: the tripping device comprises a tripping holding relay, a first jack, a second jack, a third jack, a fourth jack and a fifth jack, wherein the first jack is connected with the negative end of the tripping holding relay, the second jack is connected with the negative end of the closing monitoring relay, the third jack is connected with the tripping indicating circuit, the fourth jack is connected with the fifth jack in series, and the fifth jack is connected with the positive end of the tripping holding relay;
the jumper wire comprises a first metal pin, a second metal pin, a third metal pin and a fourth metal pin; the first metal pin and the second metal pin are connected in series, and the third metal pin and the fourth metal pin are connected in series;
the closing monitoring terminal of the breaker operation box is disconnected with the tripping circuit outgoing terminal;
the jumper is used for modifying the loop wiring of the jumper selection circuit according to the working mode required by the breaker operation box; different operating modes are used to configure different types of circuit breakers;
if the circuit breaker is not provided with a tripping coil monitoring relay, the jumper is used for modifying the loop wiring of the jumper selection circuit, so that the closing monitoring relay is connected with the tripping loop outgoing terminal, and the tripping holding relay is respectively connected with the tripping indicating circuit and the tripping loop outgoing terminal;
and if the circuit breaker is provided with a tripping coil monitoring relay, the jumper is used for modifying the loop wiring of the jumper selection circuit, so that the closing monitoring relay is connected with the tripping indicating circuit, and the closing monitoring relay is disconnected with the tripping loop outgoing terminal.
2. The circuit breaker operating case of claim 1, wherein the trip indication circuit is configured to indicate a closing position.
3. The circuit breaker operating case of claim 1 or 2, wherein the jumper further comprises an insulating housing, and the first metal pin, the second metal pin, the third metal pin, the fourth metal pin are disposed on the insulating housing;
the first metal pin, the second metal pin, the third metal pin and the fourth metal pin are used for being inserted into target jacks in the jumper wire selection circuit under different working modes to modify loop wiring of the jumper wire selection circuit, and the target jacks are four jacks in the first jack, the second jack, the third jack, the fourth jack and the fifth jack.
4. The circuit breaker operating box of claim 3 wherein the first, second, third, and fourth metal pins are inserted into the first, second, third, and fourth receptacles in that order if the circuit breaker is not configured with a trip coil monitoring relay.
5. The circuit breaker operation box of claim 3 wherein if the circuit breaker is configured with a trip coil monitoring relay, the first metal pin, the second metal pin, the third metal pin, the fourth metal pin are inserted into the second jack, the third jack, the fourth jack, the fifth jack in that order.
6. The circuit breaker operating case of claim 1, wherein the trip indicator circuit comprises a trip indicator light and a resistor; the resistor is respectively connected with the tripping indicator lamp and the third jack.
7. An electrical power system, comprising: circuit breaker and circuit breaker operating box according to any of claims 1-6.
8. The power system of claim 7, wherein the circuit breaker is a circuit breaker configured with no trip coil monitoring relay or a circuit breaker configured with a trip coil monitoring relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110615138.2A CN113472072B (en) | 2021-06-02 | 2021-06-02 | Double-working-mode breaker operation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113472072B true CN113472072B (en) | 2023-07-21 |
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| US4994934A (en) * | 1989-12-01 | 1991-02-19 | Abb Power T & D Company Inc. | Microcomputer based reclosing relay |
| CN201478218U (en) * | 2009-09-04 | 2010-05-19 | 南京宝讯科技有限公司 | Alternating current operating loop for circuit breaker |
| CN102664333A (en) * | 2012-05-23 | 2012-09-12 | 华为技术有限公司 | Power distribution module and short circuit device of power distribution box |
| CN203445389U (en) * | 2013-08-21 | 2014-02-19 | 上海宝钢工业技术服务有限公司 | Short-circuit tool for quitting dual relay protection of power line |
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN205986124U (en) * | 2016-07-28 | 2017-02-22 | 大唐胶南风力发电有限公司 | Connecting circuit is prevented jumping by switch that is equipped with overload protection device |
| CN207588442U (en) * | 2017-12-01 | 2018-07-06 | 新疆特变电工自控设备有限公司 | A kind of operation control circuit of breaker |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4994934A (en) * | 1989-12-01 | 1991-02-19 | Abb Power T & D Company Inc. | Microcomputer based reclosing relay |
| CN201478218U (en) * | 2009-09-04 | 2010-05-19 | 南京宝讯科技有限公司 | Alternating current operating loop for circuit breaker |
| CN102664333A (en) * | 2012-05-23 | 2012-09-12 | 华为技术有限公司 | Power distribution module and short circuit device of power distribution box |
| CN203445389U (en) * | 2013-08-21 | 2014-02-19 | 上海宝钢工业技术服务有限公司 | Short-circuit tool for quitting dual relay protection of power line |
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN205986124U (en) * | 2016-07-28 | 2017-02-22 | 大唐胶南风力发电有限公司 | Connecting circuit is prevented jumping by switch that is equipped with overload protection device |
| CN207588442U (en) * | 2017-12-01 | 2018-07-06 | 新疆特变电工自控设备有限公司 | A kind of operation control circuit of breaker |
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| CN113472072A (en) | 2021-10-01 |
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