CN215005763U - Circuit breaker monitoring device and monitoring system - Google Patents
Circuit breaker monitoring device and monitoring system Download PDFInfo
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- CN215005763U CN215005763U CN202120869486.8U CN202120869486U CN215005763U CN 215005763 U CN215005763 U CN 215005763U CN 202120869486 U CN202120869486 U CN 202120869486U CN 215005763 U CN215005763 U CN 215005763U
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- circuit breaker
- state information
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Abstract
The utility model discloses a circuit breaker monitoring device and system. The device comprises a main control module and at least one input/output module; the input and output module comprises an acquisition unit and a disconnection protection unit; the acquisition unit comprises a state information acquisition end and a state information output end; the disconnection protection unit comprises a disconnection control information receiving end; the master control module comprises a first state information receiving end and a disconnection control information output end; the state information acquisition end is electrically connected with an auxiliary contact of the circuit breaker and is used for acquiring state information of the auxiliary contact; the state information output end is electrically connected with the state information first receiving end; the disconnection control information receiving end is electrically connected with the disconnection control information output end; the disconnection protection unit is used for switching on or switching off according to the disconnection control information received by the disconnection control information receiving end so as to control the working state of the circuit breaker. According to the technical scheme, the state information of the contacts of the circuit breaker is monitored and the working state of the circuit breaker is controlled at the same time, and the safety of a power supply loop is guaranteed.
Description
Technical Field
The embodiment of the utility model provides a relate to automatically controlled technique, especially relate to a circuit breaker monitoring device and monitored control system.
Background
In the power system, there are secondary DC system and low voltage AC power system, both of which adopt topological structure, that is, the form of bus power supply and feeder line, each feeder line has an independent breaker to control the power supply loop, or some feeder lines have double-loop power supply, and the feeder line has two independent breakers to control the double-loop power supply loop.
In practical application, however, in order to monitor the state of the circuit breaker in real time, the monitoring of the circuit breaker is adopted, but the monitoring is only limited, and the circuit breaker cannot be remotely monitored and controlled at the same time, so that the safety of practical power supply cannot be ensured,
SUMMERY OF THE UTILITY MODEL
The utility model provides a circuit breaker monitoring device and monitored control system to realize monitoring the state information and the control circuit breaker operating condition of circuit breaker contact simultaneously, guaranteed the security of power supply circuit.
In a first aspect, an embodiment of the present invention provides a circuit breaker monitoring device, which includes: the main control module and at least one input/output module; the input and output module comprises an acquisition unit and a disconnection protection unit;
the acquisition unit comprises a state information acquisition end and a state information output end; the disconnection protection unit comprises a disconnection control information receiving end;
the main control module comprises a first state information receiving end and a disconnection control information output end;
the state information acquisition end is electrically connected with an auxiliary contact of the circuit breaker and is used for acquiring state information of the auxiliary contact; the state information output end is electrically connected with the state information first receiving end; the disconnection control information receiving end is electrically connected with the disconnection control information output end; the disconnection protection unit is used for switching on or switching off according to the disconnection control information received by the disconnection control information receiving end so as to control the working state of the circuit breaker.
Optionally, the disconnection protection unit includes a relay; the acquisition unit comprises a sampling resistor and an A/D conversion unit;
the input end of the sampling resistor is the state information acquisition end, the output end of the sampling resistor is electrically connected with the input end of the A/D conversion unit, and the output end of the A/D conversion unit is the state information output end;
the relay is respectively electrically connected with the circuit breaker and the main control module, and the control end of the relay is the disconnection control information receiving end.
Optionally, the circuit breaker monitoring device further includes a communication module;
the main control module also comprises a state information transmission end and an instruction information receiving end, and the upper computer comprises a state information second receiving end and an instruction information output end;
the state information transmission end is electrically connected with the state information second receiving end through the communication module, the instruction information receiving end is electrically connected with the instruction information output end through the communication module, and the main control module is used for outputting the disconnection control information according to the instruction information received by the instruction information receiving end.
Optionally, the communication module includes an RS485 communication interface, an ethernet interface, and a CAN communication interface.
Optionally, the circuit breaker monitoring device further includes at least one indication module, and the indication module corresponds to the input and output module one to one;
the main control module further comprises an indication information output end, the indication module comprises an indication information receiving end, the indication information receiving end is electrically connected with the indication information output end, and the indication module is used for emitting light according to the indication information received by the indication information receiving end.
Optionally, the indication module includes a first indication unit, a second indication unit, and a third indication unit;
the first indicating unit is used for receiving contact opening state information of the circuit breaker;
the second indicating unit is used for receiving contact closing state information of the circuit breaker;
and the third indicating unit is used for receiving the information of the contact non-disconnectable state of the circuit breaker.
Optionally, the first indication unit, the second indication unit and the third indication unit have different light emitting colors.
Optionally, the circuit breaker monitoring device further includes a communication module, an indication module and a power module;
the power module is electrically connected with the communication module, the main control module, the input/output module and the indication module respectively and used for supplying power to the communication module, the main control module, the input/output module and the indication module.
Optionally, the power supply module includes a power conversion unit;
the power module is electrically connected with an external power supply and used for converting the power supplied by the external power supply and then supplying power to the communication module, the main control module, the input/output module and the indication module.
In a second aspect, an embodiment of the present invention further provides a circuit breaker monitoring system, which includes at least one circuit breaker, an upper computer, and the circuit breaker monitoring apparatus of the first aspect; the circuit breaker monitoring device is electrically connected with the circuit breaker and the upper computer respectively.
The embodiment of the utility model integrates the acquisition unit and the disconnection protection unit into a whole through the input and output module; the acquisition unit acquires the state information of the breaker contacts, and the main control module outputs the disconnection control information to the disconnection protection unit according to the state information of the breaker contacts so as to control the working state of the breaker. The circuit breaker contact monitoring device has the advantages that the state information of the circuit breaker contacts can be monitored and the working state of the circuit breaker can be controlled at the same time, and the safety of a power supply loop is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a circuit breaker monitoring apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another circuit breaker monitoring device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a circuit breaker monitoring apparatus according to an embodiment of the present invention, as shown in fig. 1, the circuit breaker monitoring apparatus includes a main control module 10 and at least one input/output module 20; the input/output module 20 comprises an acquisition unit 21 and a disconnection protection unit 22; the acquisition unit 21 comprises a state information acquisition end and a state information output end; the disconnection protection unit 22 includes a disconnection control information receiving terminal; the main control module 10 comprises a first state information receiving end and a disconnection control information output end; the state information acquisition end is electrically connected with an auxiliary contact of the circuit breaker and is used for acquiring state information of the auxiliary contact; the state information output end is electrically connected with the state information first receiving end; the disconnection control information receiving end is electrically connected with the disconnection control information output end; the disconnection protection unit 22 is configured to turn on or off according to the disconnection control information received by the disconnection control information receiving terminal to control the operating state of the circuit breaker.
In a low-voltage ac power supply system, there is usually an independent circuit breaker on each feeder to control the power supply loop. Specifically, this technical scheme input/output module 20 is integrated acquisition unit 21 and disconnection protection unit 22 in an organic whole, acquisition unit 21 gathers the state information of the auxiliary contact of circuit breaker, and send the state information of the auxiliary contact of circuit breaker to host system 10, host system 10 receives and judges the state information of the auxiliary contact of circuit breaker, then output disconnection control information to disconnection protection unit 22 so that disconnection protection unit 22 switches on or closes, thereby control circuit breaker's operating condition, thereby realize the control to the power supply circuit of circuit breaker place, guarantee power supply circuit's security. The problem of only be in the real-time supervision of circuit breaker among the prior art, can't monitor and control the circuit breaker simultaneously, can't guarantee the security etc. of actual power supply like this is solved.
Optionally, fig. 2 is a schematic structural diagram of another circuit breaker monitoring apparatus provided in the embodiment of the present invention, and as shown in fig. 2, the disconnection protection unit 22 includes a relay; the acquisition unit 21 includes a sampling resistor 211 and an a/D conversion unit 212; the input end of the sampling resistor 211 is a state information acquisition end, the output end of the sampling resistor 211 is electrically connected with the input end of the A/D conversion unit 212, and the output end of the A/D conversion unit 212 is a state information output end; the relay 22 is electrically connected to the circuit breaker and the main control module 10, and the control terminal of the relay 22 is a disconnection control information receiving terminal.
The sampling resistor 211 in the acquisition unit 21 acquires voltage information of an auxiliary contact of the circuit breaker, converts the voltage information of the auxiliary contact into digital voltage information through the a/D conversion unit 212, the main control module 10 receives the digital voltage information and judges whether the digital voltage information is preset voltage information, and when the digital voltage information is greater than the preset voltage information, the relay 22 is controlled to be switched off to enable the circuit breaker to be in a switched-off state, so that the safety of a power supply loop is ensured; when the voltage is less than the preset voltage information, the relay 22 is controlled to be switched on to enable the circuit breaker to be in a conducting state, and normal work of the power supply loop is guaranteed.
Optionally, referring to fig. 2, the circuit breaker monitoring apparatus further includes a communication module 30; the main control module 10 further comprises a state information transmission end and an instruction information receiving end, and the upper computer comprises a state information second receiving end and an instruction information output end; the status information transmitting terminal is electrically connected to the status information second receiving terminal through the communication module 30, the instruction information receiving terminal is electrically connected to the instruction information output terminal through the communication module 30, and the main control module 10 is configured to output the disconnection control information according to the instruction information received by the instruction information receiving terminal.
The state information of the auxiliary contact of the circuit breaker, which is acquired by the acquisition unit 211, can also be transmitted through the main control module 10 and sent to the upper computer through the communication module 30; the host computer receives and handles the state information of the auxiliary contact of circuit breaker, generates certain instruction simultaneously and sends to host system 10, and host system 10 controls relay 22 disconnection or switches on according to the instruction that the host computer was issued, has so realized that host system 10 is according to the instruction that the host computer was issued to relay 22 more accurate control.
Optionally, referring to fig. 2, the communication module 30 includes an RS485 communication interface, an ethernet interface, and a CAN communication interface. The communication module 30 is compatible with various data transmission ports, and can facilitate the on-site circuit breaker monitoring device and an upper computer to realize data interaction in different modes.
Optionally, referring to fig. 2, the circuit breaker monitoring apparatus further includes at least one indication module 40, where the indication module 40 corresponds to the input/output module 20 one to one; the main control module 10 further comprises an indication information output end, the indication module 40 comprises an indication information receiving end electrically connected to the indication information output end, and the indication module 40 is configured to emit light according to the indication information received by the indication information receiving end.
The state information of the auxiliary contact of the circuit breaker comprises auxiliary contact opening state information, auxiliary contact closing state information and auxiliary contact non-opening state information. The main control module 10 outputs different indication information to the indication module 40 according to the state information of the auxiliary contacts of different circuit breakers. Optionally, the indication module 40 includes a first indication unit 41, a second indication unit 42, and a third indication unit 43; a first indicating unit 41 for receiving the auxiliary contact open state information of the circuit breaker; a second indicating unit 42 for receiving auxiliary contact closing state information of the circuit breaker; and a third indicating unit 43 for receiving the information of the non-disconnectable state of the auxiliary contacts of the circuit breaker. Optionally, the first indicating unit 41, the second indicating unit 42, and the third indicating unit 43 have different light emitting colors, so that when the collecting unit 211 collects the auxiliary contact state information of different circuit breakers, the state information of the auxiliary contacts of the circuit breakers can be clearly and clearly indicated by each indicating unit in the indicating module 40.
It should be noted here that, in the low-voltage dual-circuit power supply loop, when two independent circuit breakers exist on the feeder line to control the dual-circuit power supply loop, the main control module 10 controls one of the independent circuit breakers to be turned off, and the first indication unit 41 emits light; meanwhile, the main control module 10 controls another independent circuit breaker not to be disconnected, and the third indicating unit 43 emits light, so that the continuity of power supply of the double-circuit power supply circuit controlled by the two independent circuit breakers is ensured on the basis of the safety of the double-circuit power supply circuit.
Optionally, referring to fig. 2, the circuit breaker monitoring apparatus further includes a communication module 30, an indication module 40, and a power module 50; the power module 50 is electrically connected to the communication module 30, the main control module 10, the input/output module 20, and the indication module 40, and is configured to supply power to the communication module 30, the main control module 10, the input/output module 20, and the indication module 40.
Alternatively, referring to fig. 2, the power module 50 includes a power conversion unit; the power module 50 is electrically connected to an external power source, and is configured to convert the power provided by the external power source and supply power to the communication module 30, the main control module 10, the input/output module 20, and the indication module 40.
The power module 50 converts 220V ac mains power output by an external power supply into respective working voltages required by the communication module 30, the main control module 10, the input/output module 20 and the indication module 40 through the power conversion unit; for example, the power conversion unit converts 220V ac mains power into 3.3V working voltage required by the main control module 10; the power conversion unit converts 220V alternating current commercial power into 3.3V working voltage required by the communication module 30; the power conversion unit converts 220V alternating current commercial power into 3.3V working voltage of the indication module 50; the power conversion unit converts the 220V ac mains power into the 12V working voltage required by the input/output module 20.
The utility model also provides a circuit breaker monitoring system, which comprises at least one circuit breaker, an upper computer and the circuit breaker monitoring device of the embodiment; the circuit breaker monitoring device is electrically connected with the circuit breaker and the upper computer respectively. The circuit breaker monitoring system comprises the circuit breaker monitoring device and has the beneficial effects of the embodiment; in addition, the circuit breaker monitoring system comprises a plurality of circuit breakers, and the circuit breaker monitoring device can simultaneously acquire the state information of the circuit breakers; and the on-off of a plurality of circuit breakers is coordinately controlled, so that the stability and reliability of the circuit breaker monitoring system are ensured.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A circuit breaker monitoring apparatus, comprising: the main control module and at least one input/output module; the input and output module comprises an acquisition unit and a disconnection protection unit;
the acquisition unit comprises a state information acquisition end and a state information output end; the disconnection protection unit comprises a disconnection control information receiving end;
the main control module comprises a first state information receiving end and a disconnection control information output end;
the state information acquisition end is electrically connected with an auxiliary contact of the circuit breaker and is used for acquiring state information of the auxiliary contact; the state information output end is electrically connected with the state information first receiving end; the disconnection control information receiving end is electrically connected with the disconnection control information output end; the disconnection protection unit is used for switching on or switching off according to the disconnection control information received by the disconnection control information receiving end so as to control the working state of the circuit breaker.
2. The circuit breaker monitoring apparatus of claim 1 wherein the disconnect protection unit comprises a relay; the acquisition unit comprises a sampling resistor and an A/D conversion unit;
the input end of the sampling resistor is the state information acquisition end, the output end of the sampling resistor is electrically connected with the input end of the A/D conversion unit, and the output end of the A/D conversion unit is the state information output end;
the relay is respectively electrically connected with the circuit breaker and the main control module, and the control end of the relay is the disconnection control information receiving end.
3. The circuit breaker monitoring device of claim 1, further comprising a communication module;
the main control module also comprises a state information transmission end and an instruction information receiving end, and the upper computer comprises a state information second receiving end and an instruction information output end;
the state information transmission end is electrically connected with the state information second receiving end through the communication module, the instruction information receiving end is electrically connected with the instruction information output end through the communication module, and the main control module is used for outputting the disconnection control information according to the instruction information received by the instruction information receiving end.
4. The circuit breaker monitoring device of claim 3, wherein the communication module comprises an RS485 communication interface, an Ethernet interface, and a CAN communication interface.
5. The circuit breaker monitoring device of claim 1, further comprising at least one indicating module, wherein the indicating module is in one-to-one correspondence with the input and output modules;
the main control module further comprises an indication information output end, the indication module comprises an indication information receiving end, the indication information receiving end is electrically connected with the indication information output end, and the indication module is used for emitting light according to the indication information received by the indication information receiving end.
6. The circuit breaker monitoring device of claim 5, wherein the indicating module comprises a first indicating unit, a second indicating unit, and a third indicating unit;
the first indicating unit is used for receiving contact opening state information of the circuit breaker;
the second indicating unit is used for receiving contact closing state information of the circuit breaker;
and the third indicating unit is used for receiving the information of the contact non-disconnectable state of the circuit breaker.
7. The circuit breaker monitoring device according to claim 6, wherein the first indicating unit, the second indicating unit and the third indicating unit have different colors of light emission.
8. The circuit breaker monitoring device of claim 1, further comprising a communication module, an indication module, and a power module;
the power module is electrically connected with the communication module, the main control module, the input/output module and the indication module respectively and used for supplying power to the communication module, the main control module, the input/output module and the indication module.
9. The circuit breaker monitoring device of claim 8, wherein the power module includes a power conversion unit;
the power module is electrically connected with an external power supply and used for converting the power supplied by the external power supply and then supplying power to the communication module, the main control module, the input/output module and the indication module.
10. A circuit breaker monitoring system comprising at least one circuit breaker, an upper computer and a circuit breaker monitoring device according to any one of claims 1 to 9;
the circuit breaker monitoring device is electrically connected with the circuit breaker and the upper computer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869486.8U CN215005763U (en) | 2021-04-25 | 2021-04-25 | Circuit breaker monitoring device and monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120869486.8U CN215005763U (en) | 2021-04-25 | 2021-04-25 | Circuit breaker monitoring device and monitoring system |
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| Publication Number | Publication Date |
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| CN215005763U true CN215005763U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120869486.8U Active CN215005763U (en) | 2021-04-25 | 2021-04-25 | Circuit breaker monitoring device and monitoring system |
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| Country | Link |
|---|---|
| CN (1) | CN215005763U (en) |
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2021
- 2021-04-25 CN CN202120869486.8U patent/CN215005763U/en active Active
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