CN213461237U - Automatic switching device for operation power supply of low-voltage bus coupler cabinet - Google Patents
Automatic switching device for operation power supply of low-voltage bus coupler cabinet Download PDFInfo
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- CN213461237U CN213461237U CN202022538506.1U CN202022538506U CN213461237U CN 213461237 U CN213461237 U CN 213461237U CN 202022538506 U CN202022538506 U CN 202022538506U CN 213461237 U CN213461237 U CN 213461237U
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- 238000011084 recovery Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 3
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Abstract
The utility model provides a female operating power supply automatic switching control equipment who allies oneself with cabinet of low pressure, this female operating power supply automatic switching control equipment who allies oneself with cabinet of low pressure, include: the first low-voltage bus and the second low-voltage bus are respectively connected with a first bus coupler circuit breaker and a second bus coupler circuit breaker; the four-stage alternating current contactor is respectively connected with the first bus coupler circuit breaker and the second bus coupler circuit breaker in an induction mode; wherein, four-stage AC contactor includes: the contactor coils are respectively connected with the first bus coupler circuit breaker and the second bus coupler circuit breaker in an induction mode; the contactor normally closed contact is connected with the first low-voltage bus and electrically connected with the contactor coil; the contactor normally open contact is connected with the second low-voltage bus and electrically connected with the contactor coil; the action directions of the contactor normally closed contact and the contactor normally open contact are opposite. The technical scheme of the utility model can solve among the prior art operating power supply switching process loaded down with trivial details, and the power supply recovery time is long, leads to causing the great problem of loss because of losing the electricity.
Description
Technical Field
The utility model relates to a low pressure power supply system technical field especially relates to realize the operation power supply automatic switching control equipment of a low pressure female antithetical couplet cabinet.
Background
The low-voltage power supply system refers to the whole circuit system from the power supply inlet end to the inlet end of the low-voltage electric equipment. The existing low-voltage power supply system mostly adopts a power supply mode of 'two inlet wires and one bus coupler', and in the power supply mode, an operating power supply adopted by the system mostly uses a 220V alternating current power supply.
As shown in fig. 1, in a general situation, the low-voltage bus coupler cabinet 103 needs one 220V ac power supply as a main operating power supply, and the other 220V ac power supply as a standby operating power supply, so that two operating energy sources are respectively connected to two different incoming lines 101, and are respectively connected to the low-voltage bus coupler cabinet 103 through two sections of buses 102. When the two sections of buses 102 are in a closing state, an operating power supply of the low-voltage bus coupling cabinet 103 firstly gets power from one of the buses 102; when one of the buses 102 trips due to a fault, the operating power supply of the low-voltage bus coupling cabinet 103 needs to take power from the other bus which normally works, so that the low-voltage bus coupling cabinet can be reliably switched on, and power supply of the whole low-voltage power supply system is recovered.
In the prior art, when a bus trips due to a fault, an operator switches the bus of an operation power supply; specifically, a change-over switch of an upper panel of the low-voltage bus coupler cabinet is manually pressed to switch a bus connected with an operation power supply, and the bus which normally works is selected to get electricity. However, the switching manner of the operation power supply is a manual operation, the operation of the whole switching process is complicated, and the time for recovering the power supply is long, which results in a large loss caused by power loss.
SUMMERY OF THE UTILITY MODEL
The utility model provides an operation power supply automatic switching control equipment of female cabinet that allies oneself with of low pressure aims at solving among the prior art operation power supply's switching process loaded down with trivial details, and the time of resumeing the power supply is longer, will lead to the great problem of loss because of losing the electricity and causing.
In order to achieve the above object, the utility model provides an operating power supply automatic switching control equipment of low pressure female antithetical couplet cabinet, include:
the first low-voltage bus and the second low-voltage bus are respectively connected with a first bus coupler circuit breaker and a second bus coupler circuit breaker;
the four-stage alternating current contactor is respectively connected with the first bus coupler circuit breaker and the second bus coupler circuit breaker in an induction mode; wherein,
the four-stage AC contactor includes: the contactor coils are respectively connected with the first bus coupler circuit breaker and the second bus coupler circuit breaker in an induction mode; the contactor normally closed contact is connected with the first low-voltage bus and electrically connected with the contactor coil; the contactor normally open contact is connected with the second low-voltage bus and electrically connected with the contactor coil; the action directions of the contactor normally closed contact and the contactor normally open contact are opposite.
Preferably, the four-stage ac contactor further includes: a first power on indicator connected to the first low voltage bus and connected in parallel to the contactor coil; and a second power on indicator light connected to the second low voltage bus.
Preferably, the automatic operating power switching device further includes: and the reset controller is electrically connected with the first buscouple circuit breaker.
Preferably, the first and second bus tie breakers are electrically connected to the four-stage ac contactor through terminal blocks, respectively.
Preferably, the operation power supply automatic switching apparatus further includes: and the switching device bottom plate is fixed on the switching device bottom plate respectively by the first bus coupler circuit breaker, the second bus coupler circuit breaker, the four-stage alternating current contactor and the wiring terminal strip.
Preferably, the operation power supply automatic switching apparatus further includes: and the closing linkage controller is electrically connected with the first bus coupler circuit breaker and the second bus coupler circuit breaker respectively.
Preferably, the operation power supply automatic switching apparatus further includes: and the switch linkage controller is respectively connected with the normally closed contact of the contactor and the normally open contact of the contactor.
Preferably, the operation power supply automatic switching apparatus further includes: and the bus connection cabinet wiring cable is respectively and electrically connected with the first low-voltage bus through the normally closed contact of the contactor and the second low-voltage bus through the normally open contact of the contactor.
The utility model provides an among the operating power supply automatic switching device of low-voltage bus-tie cabinet that this application technical scheme provided, include the first low-voltage bus of first bus-tie circuit breaker respectively and set up the second low-voltage bus that includes the second bus-tie circuit breaker through the setting, and set up level four ac contactor and first bus-tie circuit breaker and the response of second bus-tie circuit breaker and link to each other, and thus, when first bus-tie circuit breaker and the equal combined floodgate of second bus-tie circuit breaker, level four ac contactor's contactor coil is triggered, the contactor normally closed contact of control connection at first low-voltage bus is closed, and the disconnection of contactor normally open contact at second low-voltage bus is controlled to be connected, thereby keep first low-voltage bus to switch on, make the operating power supply that first low-voltage bus links to each other provide the electric energy. When first low-voltage bus breaks down, for example short circuit or open circuit, lead to the disconnection of first female antithetical couplet circuit breaker on the first low-voltage bus, four grades of ac contactor's contactor coil is triggered like this, and the disconnection of control contactor normally closed contact to contactor normally open contact on the control connection second low-voltage bus is closed, thereby switches on second low-voltage bus, makes the operating power supply that second low-voltage bus links to each other can provide the electric energy for the low-voltage female antithetical couplet cabinet. Through above-mentioned scheme, can solve among the prior art the bus that manual switching operation power is connected, lead to switching process complex operation, the power recovery time is longer, causes great loss's problem easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a wiring structure of a first low-voltage busbar cabinet provided in the prior art;
fig. 2 is a schematic structural diagram of an automatic switching device for operating power supply of a low-voltage bus-bar coupler cabinet according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a four-stage ac contactor according to an embodiment of the present invention.
| Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | First low- |
2 | Second low- |
| 3 | First bus- |
4 | Second bus- |
| 5 | Four-stage AC contactor | 6 | Reset controller |
| 7 | |
8 | Bottom plate of switching device |
| 9 | Linkage controller for |
10 | |
| 11 | Bus connection |
501 | |
| 502 | Contactor normally closed |
503 | Normally open contact of |
| 504 | First power-on |
505 | Second power-on |
| 101 | Incoming |
102 | |
| 103 | Low-voltage bus coupler cabinet |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
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 efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; "connected" may be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The embodiment of the utility model provides a problem that faces:
in the prior art, two sections of buses which are respectively connected with an operating power supply are usually arranged, so that when one bus trips due to a fault, the low-voltage bus coupler cabinet can get electricity from the other bus which normally works, and the low-voltage bus coupler cabinet can be ensured to be reliably switched on. However, in the prior art, when the bus trips due to a fault, an operator usually manually switches the bus where the operating power supply is located, so that the whole switching process is complicated to operate, the power supply recovery time is long, and the loss caused by power loss is large.
In order to solve the above problem, referring to fig. 2, fig. 2 is a schematic structural diagram of an automatic switching device of an operating power supply of a low-voltage bus coupler cabinet according to an embodiment of the present invention. As shown in fig. 2, the automatic switching device for the operating power supply of the low-voltage busbar cabinet comprises:
the high-voltage bus-bar switching circuit comprises a first low-voltage bus 1 and a second low-voltage bus 2, wherein the first low-voltage bus 1 and the second low-voltage bus 2 are respectively connected with a first bus-tie circuit breaker 3 and a second bus-tie circuit breaker 4;
the four-stage alternating current contactor 5 is respectively connected with the first bus coupler circuit breaker 3 and the second bus coupler circuit breaker 4 in an induction mode; wherein,
as shown in fig. 2, the four-stage ac contactor 5 includes: a contactor coil 501 which is respectively connected with the first bus coupler circuit breaker 3 and the second bus coupler circuit breaker 4 in an induction manner; a contactor normally-closed contact 502 connected to the first low-voltage bus 1 and electrically connected to the contactor coil 501; a contactor normally open contact 503 connected to the second low-voltage bus 2 and electrically connected to the contactor coil 501; the contactor normally closed contact 502 and the contactor normally open contact 503 have opposite operating directions.
The embodiment of the application provides an operating power supply automatic switching control equipment of low-voltage bus allies oneself with cabinet, include first low-voltage bus 1 of first bus allies oneself with circuit breaker 3 and the second low-voltage bus 2 that the setting includes second bus allies oneself with circuit breaker 4 through the setting respectively, and set up level four ac contactor 5 and first bus allies oneself with circuit breaker 3 and the response of second bus allies oneself with circuit breaker 4 and links to each other, thus, when first bus allies oneself with circuit breaker 3 and second bus allies oneself with circuit breaker 4 and all closes, level four ac contactor 5's contactor coil 501 is triggered, the control connection is closed at first low-voltage bus 1's contactor normally closed contact 502, and the control connection is at second low-voltage bus 2's contactor normally open contact 503 disconnection, thereby keep first low-voltage bus 1 to switch on, make the operating power supply that first low-voltage bus 1 links to. When the first low-voltage bus 1 breaks down, for example, short circuit or open circuit, the first bus coupler circuit breaker 3 on the first low-voltage bus 1 is opened, so that the contactor coil 501 of the four-stage alternating current contactor 5 is triggered, the normally closed contact 502 of the control contactor is opened, and the normally open contact 503 of the contactor connected to the second low-voltage bus 2 is controlled to be closed, so that the second low-voltage bus 2 is conducted, and an operating power supply connected to the second low-voltage bus 2 can provide electric energy for the low-voltage bus coupler cabinet. Through above-mentioned scheme, can solve among the prior art the bus that manual switching operation power is connected, lead to switching process complex operation, the power recovery time is longer, causes great loss's problem easily.
As a preferred embodiment, as shown in fig. 2, the four-stage ac contactor 5 provided in the embodiment of the present application further includes: a first power on indicator 504 connected to the first low voltage bus 1 and connected in parallel to the contactor coil 501; and a second power on indicator lamp 505 connected to the second low voltage bus bar 2.
In the embodiment of the present application, when the first power on indicator 504 connected to the first low voltage bus 1 is provided, when the contactor coil 501 operates, the first low voltage bus 1 is connected, and at this time, the first power on indicator 504 is turned on, so that the connection state of the operating power on the first low voltage bus 1 can be visually displayed; when a fault, such as an open circuit or a short circuit, occurs on the first low voltage bus 1, the contactor coil 501 operates again, and at this time, the second low voltage bus 2 is turned on, so that the second power-on indicator lamp 505 on the second low voltage bus 2 is turned on, and the on state of the operating power on the second low voltage bus 2 is visually displayed.
As a preferred embodiment, as shown in fig. 2, the automatic operating power switching device further includes: and a reset controller 6 electrically connected to the first bus tie breaker 3. Through setting up reset controller 6, when first low-voltage bus 1 troubleshooting, reset controller 6 can control first bus tie circuit breaker 3 and close once more to make contactor coil 501 act once more, switch on first low-voltage bus 1 and bus tie switch board, make the operating power supply on the first low-voltage bus 1 for bus tie switch board power supply.
In addition, as shown in fig. 3, as a preferred embodiment, the first and second bus tie breakers 3 and 4 are electrically connected to the four-stage ac contactor 5 through terminal blocks 7, respectively. In the technical scheme provided by the embodiment of the application, first bus tie circuit breaker 3 and second bus tie circuit breaker 4 link to each other with level four ac contactor 5 through binding post row 7 to make level four ac contactor 5 can firmly be connected with first bus tie circuit breaker 3 and second bus tie circuit breaker 4 respectively, thereby when first bus tie circuit breaker 3 or second bus tie circuit breaker 4 break-circuit, level four ac contactor 5 can in time accurately control relevant contact break-make.
As a preferred embodiment, as shown in fig. 3, the operation power supply automatic switching apparatus further includes: and the switching device bottom plate 8 is fixed on the switching device bottom plate 8 respectively through the first bus coupler circuit breaker 3, the second bus coupler circuit breaker 4, the four-stage alternating current contactor 5 and the wiring terminal strip 7. In the technical scheme that this application embodiment provided, through with first bus tie circuit breaker 3, second bus tie circuit breaker 4, level four ac contactor 5 and binding post row 7 respectively fixed to auto-change over device bottom plate 8 on, can arrange above-mentioned structure in order, make things convenient for relevant operating personnel to overhaul.
In addition, as shown in fig. 2, the automatic operating power switching apparatus according to the embodiment of the present application includes, in addition to the above-described structure: and the closing linkage controller 9 is electrically connected with the first bus coupler circuit breaker 3 and the second bus coupler circuit breaker 4 respectively. Through setting up combined floodgate linkage controller 9, can be when first female antithetical couplet circuit breaker 3 closes a floodgate, control second female antithetical couplet circuit breaker 4 also closes a floodgate to when first generating line breaks down, during the action of contactor coil 501 of level four ac contactor 5, when combined floodgate linkage controller 9 control contactor normally open contact 503 closed, the second generating line can in time charge for the low pressure female antithetical couplet cabinet.
As shown in fig. 2, as a preferred embodiment, the automatic operating power switching device according to the embodiment of the present application further includes: an opening-linked controller 10 is connected to a contactor normally closed contact 502 and a contactor normally open contact 503, respectively. According to the technical scheme provided by the embodiment of the application, the switch-associated controller 10 is arranged, so that when the normally closed contact 502 of the contactor is closed, the normally open contact 503 of the contactor is disconnected; similarly, when contactor normally closed contact 502 is open, contactor normally open contact 503 will be closed; if the contactor coil 501 has a fault, the on-off of the two contacts can be controlled, so that the low-voltage bus coupler cabinet is communicated with the first bus or the second bus.
In addition, as shown in fig. 3, the automatic operating power switching apparatus according to the embodiment of the present application includes, in addition to the above-described structure: and the bus coupler wiring cable 11 is respectively and electrically connected with the first low-voltage bus 1 through a contactor normally-closed contact 502 and the second low-voltage bus 2 through a contactor normally-open contact 503. Through setting up the cabinet connection cable 11 that allies oneself with to it links to each other with first low-voltage bus 1 closes second low-voltage bus 2 through two kinds of contacts respectively, can be when contactor normally closed contact 502 is closed or contactor normally open contact 503 is closed, through the low voltage power supply on this cabinet connection cable 11 intercommunication corresponding generating line and the generating line that allies oneself with of mother.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides an operation power supply automatic switching control equipment of female cabinet that allies oneself with of low pressure which characterized in that includes:
the circuit breaker comprises a first low-voltage bus (1) and a second low-voltage bus (2), wherein the first low-voltage bus (1) and the second low-voltage bus (2) are respectively connected with a first bus coupler circuit breaker (3) and a second bus coupler circuit breaker (4);
the four-stage alternating current contactor (5) is respectively connected with the first bus coupler circuit breaker (3) and the second bus coupler circuit breaker (4) in an induction mode; wherein,
the four-stage AC contactor (5) comprises:
the contactor coils (501) are respectively connected with the first bus coupler circuit breaker (3) and the second bus coupler circuit breaker (4) in an induction mode;
a contactor normally-closed contact (502) connected to the first low-voltage bus (1) and electrically connected to the contactor coil (501);
a contactor normally open contact (503) connected to the second low-voltage bus (2) and electrically connected to the contactor coil (501);
the action directions of the contactor normally closed contact (502) and the contactor normally open contact (503) are opposite.
2. The automatic switching device of an operating power supply according to claim 1, wherein the four-stage ac contactor (5) further comprises:
a first power on indicator (504) connected to the first low voltage bus (1) and connected in parallel to the contactor coil (501);
and a second power on indicator lamp (505) connected to the second low voltage bus (2).
3. The automatic switching apparatus of an operation power according to claim 1, further comprising:
and the reset controller (6) is electrically connected with the first bus coupler breaker (3).
4. The automatic switching device of an operating power supply according to claim 1, characterized in that the first and second bus tie breakers (3, 4) are electrically connected to the four-stage ac contactor (5) through terminal blocks (7), respectively.
5. The automatic switching apparatus of an operating power supply according to claim 4, further comprising:
a switching device bottom plate (8), wherein the first bus coupler circuit breaker (3), the second bus coupler circuit breaker (4), the four-level AC contactor (5) and the wiring terminal row (7) are respectively fixed on the switching device bottom plate (8).
6. The automatic switching apparatus of an operation power according to claim 1, further comprising:
and the closing linkage controller (9) is electrically connected with the first bus coupler circuit breaker (3) and the second bus coupler circuit breaker (4) respectively.
7. The automatic switching apparatus of an operation power according to claim 1, further comprising:
and the switch linkage controller (10) is respectively connected with the contactor normally closed contact (502) and the contactor normally open contact (503).
8. The automatic switching apparatus of an operation power according to claim 1, further comprising:
the contactor normally-closed contact (502) and the first low-voltage bus (1) are passed through, and the contactor normally-open contact (503) and the second low-voltage bus (2) are respectively electrically connected with a bus connection cabinet wiring cable (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538506.1U CN213461237U (en) | 2020-11-05 | 2020-11-05 | Automatic switching device for operation power supply of low-voltage bus coupler cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538506.1U CN213461237U (en) | 2020-11-05 | 2020-11-05 | Automatic switching device for operation power supply of low-voltage bus coupler cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213461237U true CN213461237U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022538506.1U Active CN213461237U (en) | 2020-11-05 | 2020-11-05 | Automatic switching device for operation power supply of low-voltage bus coupler cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN213461237U (en) |
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- 2020-11-05 CN CN202022538506.1U patent/CN213461237U/en active Active
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