CN212587374U - Novel coil control module of electric holding circuit breaker - Google Patents
Novel coil control module of electric holding circuit breaker Download PDFInfo
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- CN212587374U CN212587374U CN202021489774.2U CN202021489774U CN212587374U CN 212587374 U CN212587374 U CN 212587374U CN 202021489774 U CN202021489774 U CN 202021489774U CN 212587374 U CN212587374 U CN 212587374U
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Abstract
The utility model provides a novel electric holding circuit breaker coil control module, which comprises a microcomputer measurement and control protection device, a circuit breaker coil control module and a circuit breaker coil control loop; the circuit breaker coil control module comprises a closing relay, an opening relay, a closing holding contactor and an opening and closing contactor; the opening relay and the closing relay are connected in parallel and then are connected in series with the opening and closing contactor and the closing holding contactor, the opening and closing holding contactor, the first switch of the closing relay and the first switch of the opening relay are connected in series and then are connected in parallel to the opening and closing contactor, the second switch of the closing relay and the second switch of the opening relay after being connected in series, and the first switch of the closing relay is connected in parallel to the first switch of the opening and closing contactor. The effect that the inside does not additionally set up the time delay relay, prevents that the quick circuit breaker coil of direct current from burning out the risk can be reached.
Description
Technical Field
The utility model relates to a coil control module especially relates to a novel electricity keeps circuit breaker coil control module.
Background
When the electric maintaining direct current fast breaker is adopted in the rail transit traction power supply equipment, the adopted control scheme is that a microcomputer measurement and control protection device in the rail transit traction power supply equipment directly outputs to a switching-on/off contactor, so that switching-on/off control and switching-on state maintaining are carried out on a coil of the direct current fast breaker.
The existing electric keeping technical scheme only depends on a microcomputer measurement and control protection device to realize the closing keeping of a direct current quick breaker coil, when the microcomputer measurement and control protection device is restarted and fails to work and other fault conditions, the direct current quick breaker coil can be subjected to power-off tripping, a contact network power supply system is powered off, namely a locomotive is powered off and stops, passengers are scared, and serious operation risks are caused to a rail transit operation system (as shown in figure 3).
At present, an improved control scheme is available in the domestic market, and although the direct-current fast breaker coil can be ensured not to be powered down under the fault conditions of restarting, power failure and the like of a microcomputer measurement and control protection device, the delay relay is added and the delay auxiliary point of the delay relay is used for controlling the input and the withdrawal of the holding resistor in the coil loop, and under the fault condition of the delay relay, the delay auxiliary contact cannot be input into the holding resistor, so that the current level of the coil loop is kept to be switched on for a long time, and the serious risk of burning the direct-current fast breaker coil exists (as shown in fig. 4).
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned not enough that present coil control module exists, the utility model provides a novel electricity keeps circuit breaker coil control module can reach inside not additionally sets up time delay relay, only uses the auxiliary point of auxiliary relay to keep putting up of return circuit, reducing control circuit's node type and possible fault point, preventing the effect that the quick circuit breaker coil of direct current burns out the risk.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a novel electric holding circuit breaker coil control module comprises a microcomputer measurement and control protection device, a circuit breaker coil control module and a circuit breaker coil control loop; the circuit breaker coil control module comprises a closing relay, an opening relay, a closing holding contactor and an opening and closing contactor; the separating brake relay and the closing relay are connected with the microcomputer measurement and control protection device, the separating brake relay and the closing relay are connected in parallel and then connected with the separating brake contactor and the closing maintaining contactor in series, the separating brake contactor, the closing relay first switch and the separating brake relay first switch are connected in parallel after being connected in series on the circuit of the separating brake contactor, the closing relay second switch and the separating brake relay second switch after being connected in series, the closing relay first switch is connected in parallel with the separating brake contactor first switch, and the separating brake contactor, the closing relay first switch and the separating brake relay first switch are connected in series and then connected with a power supply of the circuit breaker coil control module.
According to the utility model discloses an aspect, circuit breaker coil control circuit includes diode module, reverse electromotive force absorption resistance, combined floodgate holding resistor and direct current quick circuit breaker electric hold coil, divide-shut brake contactor second switch, direct current quick circuit breaker electric hold coil and the first switch of combined floodgate holding contactor establish ties in proper order, diode module and reverse electromotive force absorption resistance connect in parallel on direct current quick circuit breaker electric hold coil, combined floodgate holding resistor connects in parallel on combined floodgate holding contactor first switch.
According to the utility model discloses an aspect, separating brake relay observes and controls protection device's separating brake output connection with the computer, combined floodgate relay observes and controls protection device's combined floodgate output connection with the computer.
According to an aspect of the utility model, the combined floodgate keeps the first switch of contactor and divide-shut brake contactor second switch to be provided with two at least.
According to an aspect of the present invention, the power supply of the circuit breaker coil control module is 24VDC, and the power supply of the circuit breaker coil control circuit is 220 VDC.
According to an aspect of the utility model, circuit breaker coil control module is inside to be sealed, to link to each other with the external world through connecting.
The utility model discloses the advantage of implementing:
the utility model provides a novel electric holding circuit breaker coil control module, which comprises a microcomputer measurement and control protection device, a circuit breaker coil control module and a circuit breaker coil control loop; the circuit breaker coil control module comprises a closing relay, an opening relay, a closing holding contactor and an opening and closing contactor; the separating brake relay and the closing relay are connected with the microcomputer measurement and control protection device, the separating brake relay and the closing relay are connected in parallel and then connected with the separating brake contactor and the closing maintaining contactor in series, the separating brake contactor, the closing relay first switch and the separating brake relay first switch are connected in parallel after being connected in series on the circuit of the separating brake contactor, the closing relay second switch and the separating brake relay second switch after being connected in series, the closing relay first switch is connected in parallel with the separating brake contactor first switch, and the separating brake contactor, the closing relay first switch and the separating brake relay first switch are connected in series and then connected with a power supply of the circuit breaker coil control module. The effect that the inside does not additionally set up the time delay relay, only uses the auxiliary point of the intermediate relay to build the holding circuit, reduces the node type and possible fault point of the control circuit, ensures that the holding resistor is reliably connected into the coil loop, and prevents the direct current quick breaker coil from burning out risks can be achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a microcomputer measurement and control protection device and a circuit breaker coil control module according to the present invention;
fig. 2 is a schematic structural diagram of a circuit breaker coil control circuit according to the present invention;
fig. 3 is a schematic structural diagram of a conventional coil control module according to the present invention;
fig. 4 is a schematic structural diagram of a conventional improved coil control module according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a novel electric holding circuit breaker coil control module comprises a microcomputer measurement and control protection device 1, a circuit breaker coil control module 2 and a circuit breaker coil control loop; the circuit breaker coil control module 2 comprises a closing relay T01, an opening relay T02, a closing holding contactor J1b and a switching-on and switching-off contactor J01; the switching-off relay T02 and the switching-on relay T01 are connected with a microcomputer measurement and control protection device 1, the switching-off relay T02 and the switching-on relay T01 are connected in parallel and then connected in series with the switching-off contactor J01 and the switching-on maintaining contactor J1b, the switching-off contactor J01, the switching-on relay first switch T01-1 and the switching-off relay first switch T02-1 are connected in series and then connected in parallel on a circuit of the switching-off contactor J01, the switching-on relay second switch T01-2 and the switching-off relay second switch T02-2, the switching-on relay first switch T01-1 is connected in parallel with the switching-off contactor first switch J01-1, and the switching-on relay J01, the switching-on relay T01-1 and the switching-on relay first switch T02-1 are connected in series and then connected with a power supply of a circuit breaker coil control module 2.
In this embodiment, the circuit breaker coil control circuit includes a diode module V1, a reverse electromotive force absorption resistor R01, a closing holding resistor R02, and a dc fast breaker electric holding coil Q0, the second switch J01-2 of the switching contactor, the dc fast breaker electric holding coil Q0 and the first switch J1b-1 of the closing holding contactor are sequentially connected in series, the diode module V1 and the reverse electromotive force absorption resistor R01 are connected in parallel to the dc fast breaker electric holding coil Q0, and the closing holding resistor R02 is connected in parallel to the first switch J1b-1 of the closing holding contactor.
In this embodiment, the opening relay T02 is connected to an opening output 1-2 of the microcomputer measurement and control protection device 1, and the closing relay T01 is connected to a closing output 1-1 of the microcomputer measurement and control protection device 1.
In this embodiment, at least two first switches J1b-1 and second switches J01-2 are provided for the closing holding contactor.
In this embodiment, the power supply of the circuit breaker coil control module 2 is 24VDC, and the power supply of the circuit breaker coil control loop is 220 VDC.
In this embodiment, the circuit breaker coil control module 2 is internally closed and connected to the outside through a connector.
In practical use, the closing relay controls the first switch of the closing relay and the second switch of the closing relay, the opening relay controls the first switch of the opening relay and the second switch of the opening relay, the opening and closing contactor controls the first switch of the opening and closing contactor and the second switch of the opening and closing contactor, and the closing keeping contactor controls the first switch of the closing.
The utility model discloses a theory of operation:
1) switching-on logic: a closing output command (0.5S pulse) is sent out, coils of T01, J01 and J1b are electrified, switches controlled by T01, J01 and J1b are closed, Q0 is electrified and closed, and at the moment, the switch controlled by J01 is closed to form a self-holding loop of J01; after 0.5S, the coil of the T01 loses power, the switch controlled by the T01 is opened from a normally closed state, and at the moment, the coil of the J01 loses power because the self-holding loop continues to be powered; r02 is connected into a loop, and at the moment, Q0 is in a closing holding state; the holding current is 5% of the current at the moment of closing.
2) Switching-off logic: under the closing keeping state of the circuit breaker, the microcomputer measurement and control protection device sends a switching-off output command, a T02 coil is electrified, a switch auxiliary contact corresponding to a T02 is opened from a normally closed state, a J01 coil is electrified, a switch controlled by a J01 in the attached drawing 1 is opened, Q0 is completely electrified, and the switching-off of the circuit breaker is completed.
The utility model discloses the advantage of implementing:
the utility model provides a novel electric holding circuit breaker coil control module, which comprises a microcomputer measurement and control protection device, a circuit breaker coil control module and a circuit breaker coil control loop; the circuit breaker coil control module comprises a closing relay, an opening relay, a closing holding contactor and an opening and closing contactor; the separating brake relay and the closing relay are connected with the microcomputer measurement and control protection device, the separating brake relay and the closing relay are connected in parallel and then connected with the separating brake contactor and the closing maintaining contactor in series, the separating brake contactor, the closing relay first switch and the separating brake relay first switch are connected in parallel after being connected in series on the circuit of the separating brake contactor, the closing relay second switch and the separating brake relay second switch after being connected in series, the closing relay first switch is connected in parallel with the separating brake contactor first switch, and the separating brake contactor, the closing relay first switch and the separating brake relay first switch are connected in series and then connected with a power supply of the circuit breaker coil control module. The effect that the inside does not additionally set up the time delay relay, only uses the auxiliary point of the intermediate relay to build the holding circuit, reduces the node type and possible fault point of the control circuit, ensures that the holding resistor is reliably connected into the coil loop, and prevents the direct current quick breaker coil from burning out risks can be achieved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a novel electricity keeps circuit breaker coil control module which characterized in that:
the novel electric holding circuit breaker comprises a microcomputer measurement and control protection device, a circuit breaker coil control module and a circuit breaker coil control loop; the circuit breaker coil control module comprises a closing relay, an opening relay, a closing holding contactor and an opening and closing contactor, and the opening relay and the closing relay are connected with the microcomputer measurement and control protection device;
the switching-off relay and the switching-on relay are connected in parallel and then connected in series with the switching-off contactor and the switching-on maintaining contactor, the switching-on contactor, the first switching of the switching-on relay and the first switching of the switching-off relay are connected in parallel on the circuit of the switching-on contactor, the second switching of the switching-on relay and the second switching of the switching-off relay after being connected in series, the first switching of the switching-on relay is connected in parallel with the first switching of the switching-off contactor, and the first switching of the switching-on relay and the first switching of the switching-off relay are connected in series and then connected with a power supply of a circuit breaker coil control module.
2. The novel electrical hold down circuit breaker coil control module of claim 1, wherein: the circuit breaker coil control circuit comprises a diode module, a reverse electromotive force absorption resistor, a closing holding resistor and a direct current quick circuit breaker electric holding coil, wherein a second switch of the opening and closing contactor, the direct current quick circuit breaker electric holding coil and a first switch of the closing holding contactor are sequentially connected in series, the diode module and the reverse electromotive force absorption resistor are connected in parallel on the direct current quick circuit breaker electric holding coil, and the closing holding resistor is connected in parallel on the first switch of the closing holding contactor.
3. The novel electrical hold down circuit breaker coil control module of claim 2, wherein: the switching-off relay is connected with the switching-off output of the microcomputer measurement and control protection device, and the switching-on relay is connected with the switching-on output of the microcomputer measurement and control protection device.
4. The novel electrical hold down circuit breaker coil control module of claim 3, wherein: and at least two first switches of the closing maintaining contactor and at least two second switches of the opening and closing contactor are arranged.
5. The novel electrical hold down circuit breaker coil control module of claim 4, wherein: the power supply of the circuit breaker coil control module is 24VDC, and the power supply of the circuit breaker coil control loop is 220 VDC.
6. The novel electrical hold down circuit breaker coil control module of claim 5, wherein: the circuit breaker coil control module is internally sealed and is connected with the outside through a connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021489774.2U CN212587374U (en) | 2020-07-25 | 2020-07-25 | Novel coil control module of electric holding circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021489774.2U CN212587374U (en) | 2020-07-25 | 2020-07-25 | Novel coil control module of electric holding circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212587374U true CN212587374U (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021489774.2U Active CN212587374U (en) | 2020-07-25 | 2020-07-25 | Novel coil control module of electric holding circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212587374U (en) |
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2020
- 2020-07-25 CN CN202021489774.2U patent/CN212587374U/en active Active
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Address after: No. 1310, 13th Floor, Building 6, No. 666, Jinfenghuang Avenue, Jinniu High tech Industrial Park, Chengdu, Sichuan Province, 610036 Patentee after: Sichuan Tuoji Rail Transit Equipment Co.,Ltd. Address before: 201802 Shanghai Jiading District Liuxiang highway 918, 2, 1 story A area. Patentee before: SHANGHAI TOGEE METRO EQUIPMENT CO.,LTD. |