CN221326705U - Novel analog circuit breaker - Google Patents
Novel analog circuit breaker Download PDFInfo
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- CN221326705U CN221326705U CN202323206909.6U CN202323206909U CN221326705U CN 221326705 U CN221326705 U CN 221326705U CN 202323206909 U CN202323206909 U CN 202323206909U CN 221326705 U CN221326705 U CN 221326705U
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- 238000010586 diagram Methods 0.000 description 3
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- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a novel analog circuit breaker, which relates to the technical field of circuit verification and comprises the following components: the relay comprises a double-position relay, a first switch and a second switch, wherein a first coil in the double-position relay is connected in series in a switching-on control loop of an operation box of the relay protection device, a second coil in the double-position relay is connected in series in a tripping control loop of the operation box of the relay protection device, the first switch is connected in series in the switching-on control loop, and the second switch is connected in series in the tripping control loop; after the first switch is closed, the first coil generates repulsive force, the normally open contact corresponding to the first coil is closed, the novel analog circuit breaker is closed to generate a closing signal, and the closing signal is transmitted to the relay protection device operation box; after the second switch is closed, the second coil generates repulsive force, the normally closed contact corresponding to the second coil is opened, the novel analog circuit breaker is closed to generate a tripping signal, and the tripping signal is transmitted to the relay protection device operation box, so that the technical problem of high cost of the analog circuit breaker is solved.
Description
Technical Field
The utility model relates to the technical field of circuit verification, in particular to a novel analog circuit breaker.
Background
When the device in the transformer substation is tested and debugged, the circuit breaker is often required to be frequently operated to verify the accuracy of the action of the device and the integrity of the secondary circuit, and when the multi-interval protection such as spare power automatic switching and bus-bar error is involved, the high-voltage equipment cannot be powered off, so that the on-off test of the running circuit breaker cannot be performed.
Therefore, the simulation circuit breaker is needed, and is mainly used for the whole group test of the power system power-off protection device or the complete set relay protection screen, so that the tripping and closing states of the circuit breaker can be truly simulated, and when the whole transmission test of a plurality of switches is needed, the simulation circuit breaker is needed, but the simulation circuit breaker has high cost.
Disclosure of utility model
The present utility model aims to solve at least one of the above technical problems and to provide a novel analog circuit breaker.
In a first aspect, an embodiment of the present utility model provides a novel analog circuit breaker, including: the relay comprises a double-position relay, a first switch and a second switch, wherein a first coil in the double-position relay is connected in series in a one-phase switching-on control loop of an operation box of the relay protection device, a second coil in the double-position relay is connected in series in a one-phase tripping control loop of the operation box of the relay protection device, the double-position relay corresponds to the first switch and the second switch, the first switch is connected in series in the switching-on control loop, and the second switch is connected in series in the tripping control loop; after the first switch is closed, the first coil generates repulsive force, the normally open contact corresponding to the first coil is closed, the novel analog circuit breaker is closed to generate a closing signal, and the closing signal is transmitted to the relay protection device operation box; after the second switch is closed, the second coil generates repulsive force, the normally closed contact corresponding to the second coil is opened, the novel analog circuit breaker is closed to generate a tripping signal, and the tripping signal is transmitted to the relay protection device operation box.
Further, if the first switch is a three-phase transfer switch, the number of the first switches is 3, the number of the two-position relays is 3, one first switch corresponds to one two-position relay, and a first coil in one two-position relay is connected in series in a phase-closing control loop of the operation box of the relay protection device.
Further, if the first switch is a three-phase linkage switch, the number of the first switches is 1, and the number of the dual-position relays is 1.
Further, if the second switch is a three-phase transfer switch, the number of the second switches is 3, the number of the two-position relays is 3, one second switch corresponds to one two-position relay, and a first coil in one two-position relay is connected in series in a phase trip control loop of the operation box of the relay protection device.
Further, if the second switch is a three-phase linkage switch, the number of the second switches is 1, and the number of the dual-position relays is 1.
The utility model provides a novel analog circuit breaker, comprising: the relay comprises a double-position relay, a first switch and a second switch, wherein a first coil in the double-position relay is connected in series in a one-phase switching-on control loop of an operation box of the relay protection device, a second coil in the double-position relay is connected in series in a one-phase tripping control loop of the operation box of the relay protection device, the double-position relay corresponds to the first switch and the second switch, the first switch is connected in series in the switching-on control loop, and the second switch is connected in series in the tripping control loop; after the first switch is closed, the first coil generates repulsive force, the normally open contact corresponding to the first coil is closed, the novel analog circuit breaker is closed to generate a closing signal, and the closing signal is transmitted to the relay protection device operation box; after the second switch is closed, the second coil generates repulsive force, the normally closed contact corresponding to the second coil is opened, the novel analog circuit breaker is closed to generate a tripping signal, and the tripping signal is transmitted to the relay protection device operation box. The embodiment of the utility model utilizes the double-position relay to construct the analog circuit breaker, and simultaneously can reduce the switching-on and switching-off times of the main switch as much as possible, thereby realizing the technical effects of reducing the cost and prolonging the service life.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are needed in the detailed description of the embodiments and the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a novel analog circuit breaker using a three-phase transfer switch provided in an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a novel analog circuit breaker using a three-phase ganged switch provided in an embodiment of the present utility model;
fig. 3 is a schematic diagram of a dual position relay according to an embodiment of the present utility model.
In the figure: 1. the circuit comprises an A-phase double-position relay, a 2-phase double-position relay, a B-phase double-position relay, a 3-phase double-position relay, a C-phase double-position relay, a 4, a first switch, a 5 and a second switch.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
According to an embodiment of the utility model, a novel embodiment of an analog circuit breaker device is provided. Embodiments of the present utility model will be described in detail with reference to fig. 1 to 3.
This novel analog circuit breaker includes: the relay comprises a double-position relay, a first switch and a second switch, wherein a first coil in the double-position relay is connected in series in a one-phase switching-on control loop of an operation box of the relay protection device, a second coil in the double-position relay is connected in series in a one-phase tripping control loop of the operation box of the relay protection device, the double-position relay corresponds to the first switch and the second switch, the first switch is connected in series in the switching-on control loop, and the second switch is connected in series in the tripping control loop;
After the first switch is closed, the first coil generates repulsive force, the normally open contact corresponding to the first coil is closed, the novel analog circuit breaker is closed to generate a closing signal, and the closing signal is transmitted to the relay protection device operation box;
After the second switch is closed, the second coil generates repulsive force, the normally closed contact corresponding to the second coil is opened, the novel analog circuit breaker is closed to generate a tripping signal, and the tripping signal is transmitted to the relay protection device operation box.
The utility model provides a novel analog circuit breaker, comprising: the relay comprises a double-position relay, a first switch and a second switch, wherein a first coil in the double-position relay is connected in series in a one-phase switching-on control loop of an operation box of the relay protection device, a second coil in the double-position relay is connected in series in a one-phase tripping control loop of the operation box of the relay protection device, the double-position relay corresponds to the first switch and the second switch, the first switch is connected in series in the switching-on control loop, and the second switch is connected in series in the tripping control loop; after the first switch is closed, the first coil generates repulsive force, the normally open contact corresponding to the first coil is closed, the novel analog circuit breaker is closed to generate a closing signal, and the closing signal is transmitted to the relay protection device operation box; after the second switch is closed, the second coil generates repulsive force, the normally closed contact corresponding to the second coil is opened, the novel analog circuit breaker is closed to generate a tripping signal, and the tripping signal is transmitted to the relay protection device operation box. The embodiment of the utility model utilizes the double-position relay to construct the analog circuit breaker, and simultaneously can reduce the switching-on and switching-off times of the main switch as much as possible, thereby realizing the technical effects of reducing the cost and prolonging the service life.
It should be noted that, as shown in fig. 1, if the first switch is a three-phase transfer switch, the number of the first switches is 3, the number of the two-position relays is 3, one first switch corresponds to one two-position relay, and a first coil in one two-position relay is connected in series in a phase-closing control loop of the operation box of the relay protection device. If the second switch is a three-phase transfer switch, the number of the second switches is 3, the number of the two-position relays is 3, one second switch corresponds to one two-position relay, and a first coil in one two-position relay is connected in series in a phase trip control loop of an operation box of the relay protection device.
When the first switch is a three-phase linkage switch, the number of the first switches is 1, and the number of the double-position relays is 1.
As shown in fig. 2, if the second switch is a three-phase linked switch, the number of the second switches is 1, and the number of the dual-position relays is 1. And if the second switch is a three-phase linkage switch, the number of the second switches is 1.
The double-position relay is composed of a magnetic system, a contact system and a bracket, wherein the magnetic system is composed of a left coil, a right coil, a middle column permanent magnet and an iron core to form a double-port magnetic loop, when one of the left coil and the right coil is electrified and excited, a magnetic field generated by the coil generates repulsive force on the permanent magnet, so that an armature is converted to the other side, and the magnet is locked and drives a contact to be converted, thereby completing one-time action of a switch.
The operation of the above-described novel analog circuit breaker will be described with reference to fig. 1, 2 and 3.
Three double-position relays respectively simulate three circuit breakers 1, 2 and 3. The 1-phase switching-on control loop of the relay protection device operation box is connected with the left coil winding of the 1-phase double-position relay, the coils 122 and 121 are used for simulating switching-on coils, the coils are connected in series, repulsive force is generated by the coils after switching-on pulses are sent out in the switching-on loop, a normally open contact of the left coil winding is closed, the simulated circuit breaker is switched on, switching-on signals of the circuit breaker are simulated by output nodes 213 and 214, and the switching-on signals are connected into the relay protection device. And the 2-phase and 3-phase switching-on coils are also connected in series and connected to corresponding switching-on control loops of the relay protection device. When the analog tripping is needed, when the switch is in three-phase linkage, only one coil is needed, and the same switching-off signal is fed back, and only one pair of nodes is needed; when the three phases are separated, the three phases are connected in series respectively like closing, and are connected into tripping control loops of corresponding phases. The function required by the verification of the relay protection device can be realized.
It should be noted that the novel analog circuit breaker in the embodiment of the utility model is also applicable to the fixed inspection of the power supply switching device, such as a fast switching device, and can meet the test requirement only by requiring a double-position relay when the three-phase transfer function is not needed.
The novel analog circuit breaker in the embodiment of the invention meets the requirement of the analog circuit breaker for relay protection under the condition of low cost, can reduce the switching-on and switching-off times of one time as much as possible, prolongs the service life of the main switch, and has low manufacturing cost, convenient wiring and easy disassembly and transformation.
The double-position relay is used for simulating a switch and tripping, and can be connected with a normally open contact or a normally closed contact, wherein the normally open contact is used for simulating the opening and closing position of the switch, and the normally closed contact can be used for monitoring the opening and closing position, so that the action condition of a main switch can be simulated as soon as possible, the times of the main switch and tripping at one time can be reduced as much as possible, and the service life can be prolonged.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. A novel analog circuit breaker, comprising: the relay comprises a double-position relay, a first switch and a second switch, wherein a first coil in the double-position relay is connected in series in a one-phase switching-on control loop of an operation box of the relay protection device, a second coil in the double-position relay is connected in series in a one-phase tripping control loop of the operation box of the relay protection device, the double-position relay corresponds to the first switch and the second switch, the first switch is connected in series in the switching-on control loop, and the second switch is connected in series in the tripping control loop;
After the first switch is closed, the first coil generates repulsive force, the normally open contact corresponding to the first coil is closed, the novel analog circuit breaker is closed to generate a closing signal, and the closing signal is transmitted to the relay protection device operation box;
After the second switch is closed, the second coil generates repulsive force, the normally closed contact corresponding to the second coil is opened, the novel analog circuit breaker is closed to generate a tripping signal, and the tripping signal is transmitted to the relay protection device operation box.
2. The novel analog circuit breaker according to claim 1, wherein if the first switch is a three-phase transfer switch, the number of the first switches is 3, the number of the two-position relays is 3, one first switch corresponds to one two-position relay, and a first coil in one two-position relay is connected in series in a phase-closing control loop of an operation box of the relay protection device.
3. The novel analog circuit breaker of claim 1, wherein if the first switch is a three-phase linked switch, the number of the first switches is 1, and the number of the dual position relays is 1.
4. The novel analog circuit breaker according to claim 1, wherein if the second switch is a three-phase transfer switch, the number of the second switches is 3, the number of the two-position relays is 3, one second switch corresponds to one two-position relay, and a first coil in one two-position relay is connected in series in a one-phase trip control circuit of an operation box of the relay protection device.
5. The novel analog circuit breaker of claim 1, wherein if the second switch is a three-phase linked switch, the number of the second switches is 1, and the number of the dual position relays is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323206909.6U CN221326705U (en) | 2023-11-27 | 2023-11-27 | Novel analog circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323206909.6U CN221326705U (en) | 2023-11-27 | 2023-11-27 | Novel analog circuit breaker |
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| Publication Number | Publication Date |
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| CN221326705U true CN221326705U (en) | 2024-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323206909.6U Active CN221326705U (en) | 2023-11-27 | 2023-11-27 | Novel analog circuit breaker |
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| CN (1) | CN221326705U (en) |
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2023
- 2023-11-27 CN CN202323206909.6U patent/CN221326705U/en active Active
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