CN220570170U - Controlled variable-voltage switch loop - Google Patents
Controlled variable-voltage switch loop Download PDFInfo
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- CN220570170U CN220570170U CN202321634500.1U CN202321634500U CN220570170U CN 220570170 U CN220570170 U CN 220570170U CN 202321634500 U CN202321634500 U CN 202321634500U CN 220570170 U CN220570170 U CN 220570170U
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- power supply
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- 230000005611 electricity Effects 0.000 claims abstract description 15
- 238000005286 illumination Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 5
- 206010000369 Accident Diseases 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
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- Control Of Electric Motors In General (AREA)
Abstract
The utility model relates to the technical field of electric switch control loops, in particular to a controlled variable-voltage switch loop, which comprises the following technical scheme: the motor, switching power supply A, switching power supply B and switching power supply C, switching power supply A one end is connected with the motor electricity through the branch line, switching power supply B and switching power supply C one end are connected with the motor electricity respectively, the switching power supply A other end is connected with the protection device electricity, one side that protection device deviates from switching power supply A is connected with switching power supply N electricity, be equipped with intermediate relay between switching power supply N and the switching power supply A. The utility model solves the problems that the heat productivity in the cabinet is difficult to radiate, the insulation aging of the control wire is accelerated along with the increase of the service life of the equipment, the wire is easy to generate abnormity such as overheat burning smoke, short circuit and the like, and the switch smoke fire accident is caused when serious, the safety of the equipment and the unit is influenced, and the potential safety hazard is large.
Description
Technical Field
The utility model relates to the technical field of electric switch control loops, in particular to a controlled variable-voltage switch loop.
Background
The drawer type switch cabinet functional unit is separated from the bus or the cable by a grounded metal plate or a functional plate made of plastic, so that three areas of the bus, the functional unit and the cable are formed. There are also isolation measures between each functional unit. The drawer type switch cabinet has higher reliability, safety and interchangeability, is a relatively advanced switch cabinet, and is produced, and most of the switch cabinets are drawer type switch cabinets. The intelligent power distribution system is suitable for industrial and mining enterprises and high-rise buildings with high power supply reliability, and is used as a power distribution center for centralized control.
In a drawer type switch of a 380V power distribution device, a power supply of a part of motors adopts positive and super-electric switching equipment, the switch adopts 220V alternating current control, a control power supply is connected by a A, C-phase 380V alternating current of a switch power supply side, and a 220V power supply is output through a control transformer. The control loop is complex, and after the switch is switched to a working position, no matter whether the equipment is started or not, the power elements such as the control transformer (2) and the monitoring relay (7) are electrified and heated for a long time, so that the electricity consumption is increased, and the carbon emission is increased. The temperature is measured immediately after the switch is powered on, and the iron core of the control transformer (2) is found to be about 60 degrees, and the iron core temperature of the relay (7) is monitored to be about 80 degrees. Because the heating value in the drawer type switch is difficult to emit, along with the increase of the service life of equipment, insulation aging of control wires is accelerated, and abnormity such as overheating, burning and smoking, short circuit and the like of the wires are easy to occur, when serious, the switch smoke and fire accidents are caused, the safety of equipment and units is influenced, and great potential safety hazards exist, so that a transformer switch loop with control is needed to solve the problems.
Disclosure of Invention
The utility model aims to provide a controlled variable-voltage switch loop, which has the advantages that under the condition of ensuring the original control function of a switch, the control loop is simplified by optimizing and improving the switch control loop, a control transformer is reduced, an electromagnetic relay is replaced by a low-power relay, the heating value of the switch is reduced, meanwhile, the maintenance cost and the electric energy loss are reduced, and the safety and the economical efficiency are improved, so that the problems that the heating value in a cabinet is difficult to emit, the insulation aging of a control wire is accelerated along with the increase of the service life of the equipment, the abnormal phenomena such as overheat burning smoke and short circuit of the wire are easy to occur, the switch smoke and fire accident is caused when serious, the safety of the equipment and a unit is influenced, and the potential safety hazard is large are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a take transformer switching circuit of control, includes motor, switching power supply A, switching power supply B and switching power supply C, switching power supply A one end is passed through the branch line and is connected with the switching power supply is electromechanical, switching power supply B and switching power supply C one end are connected with the electricity respectively, the switching power supply A other end is connected with the protection device electricity, one side that protection device deviates from switching power supply A is connected with switching power supply N electricity, be equipped with intermediate relay between switching power supply N and the switching power supply A.
When the transformer switch loop with control in the technical scheme is used, the control transformer with the switch is omitted, the switch power supply A is connected with an output terminal and used as a 220V control power supply phase line, the original monitoring relay of the switch is omitted, the switch power supply A is replaced by a low-power intermediate relay, the switch power supply A is used as an alternating current control power supply phase line of a new loop, and the intermediate relay is newly added to replace the original monitoring relay.
Preferably, the other ends of the switch power supply A, the switch power supply B and the switch power supply C are electrically connected with a 380V power supply.
Preferably, the motor is provided with three air switches and is electrically connected with the switch power supply A, the switch power supply B and the switch power supply C respectively.
Preferably, a resistor is arranged on the side, opposite to the intermediate relay, of the switching power supply A.
Preferably, a change-over switch and an electric appliance illumination box are arranged between the protection device and the switching power supply N.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model uses the intermediate relay and the control transformer with the switch to connect the switch power A with the output terminal, uses the switch power A as the phase line of the 220V control power, uses the switch power A as the phase line of the AC control power of the new loop, and uses the new intermediate relay to replace the original monitoring relay, thereby achieving the effects of optimizing and improving the switch control loop of the type, simplifying the control loop, reducing the control transformer, changing the electromagnetic relay into the low power relay, reducing the switch heating value, reducing the maintenance cost and the electric energy loss, and improving the safety and the economy under the condition of ensuring the original control function of the switch.
Drawings
FIG. 1 is a schematic diagram of the improved control of the present utility model;
fig. 2 is a schematic diagram of the original control of the present utility model.
In the figure: 1. a resistor; 2. a control transformer; 3. a motor; 4. a switching power supply A; 5. a switching power supply B; 6. a switching power supply C; 7. monitoring a relay; 8. a protection device; 9. an intermediate relay; 10. and a switching power supply N.
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.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
As shown in fig. 1 and 2, the present utility model provides an embodiment: the utility model provides a transformer switching circuit of area control, includes motor 3, switching power supply A4, switching power supply B5 and switching power supply C6, and switching power supply A4 one end is connected with motor 3 electricity through the branch line, and switching power supply B5 and switching power supply C6 one end are connected with motor 3 electricity respectively, are equipped with three air switch on the motor 3 and are connected with switching power supply A4, switching power supply B5 and switching power supply C6 electricity respectively. The other ends of the switch power supply A4, the switch power supply B5 and the switch power supply C6 are electrically connected with a 380V power supply. The other end of the switching power supply A4 is electrically connected with the protection device 8, and a resistor 1 is arranged on one side of the switching power supply A4 opposite to the intermediate relay 9. The intermediate relay 9 is arranged, the control transformer 2 with the switch is omitted, the switch power supply A4 is connected with an output terminal and used as a 220V control power supply phase line, the switch original monitoring relay 7 is omitted, the switch power supply A4 is replaced by the low-power intermediate relay 9, the switch power supply A4 is used as an alternating current control power supply phase line of a new loop, the intermediate relay 9 is newly added to replace the original monitoring relay 7, and the effects of optimizing and improving the switch control loop of the type, simplifying the control loop, replacing the electromagnetic relay with the low-power relay, reducing the switch heating value, reducing the maintenance cost and the electric energy loss and improving the safety and the economy are achieved under the condition of ensuring the switch original control function.
One side of the protection device 8, which is away from the switching power supply A4, is electrically connected with the switching power supply N10, and an intermediate relay 9 is arranged between the switching power supply N10 and the switching power supply A4. A change-over switch and an electric appliance illumination box are arranged between the protection device 8 and the switching power supply N10.
When the utility model is used, the switch power supply A4 is connected with an output terminal through the control transformer 2 with the switch, is used as a 220V control power supply phase line, the original switch monitoring relay 7 is canceled, the switch power supply A4 is replaced by the low-power intermediate relay 9, the switch power supply A4 is used as an alternating current control power supply phase line of a new loop, and the original monitoring relay 7 is replaced by the newly added intermediate relay 9.
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.
Claims (5)
1. The utility model provides a change-over switching circuit of area control, includes motor (3), switching power supply A (4), switching power supply B (5) and switching power supply C (6), its characterized in that: switching power supply A (4) one end is connected with motor (3) electricity through the branch line, switching power supply B (5) and switching power supply C (6) one end are connected with motor (3) electricity respectively, switching power supply A (4) other end is connected with protection device (8) electricity, one side that protection device (8) deviate from switching power supply A (4) is connected with switching power supply N (10) electricity, be equipped with intermediate relay (9) between switching power supply N (10) and switching power supply A (4).
2. A controlled variable voltage switching circuit according to claim 1, wherein: the other ends of the switching power supply A (4), the switching power supply B (5) and the switching power supply C (6) are electrically connected with a 380V power supply.
3. A controlled variable voltage switching circuit according to claim 1, wherein: the motor (3) is provided with three air switches and is electrically connected with the switching power supply A (4), the switching power supply B (5) and the switching power supply C (6) respectively.
4. A controlled variable voltage switching circuit according to claim 1, wherein: and a resistor (1) is arranged on one side of the switching power supply A (4) opposite to the intermediate relay (9).
5. A controlled variable voltage switching circuit according to claim 1, wherein: a change-over switch and an electric appliance illumination box are arranged between the protection device (8) and the switching power supply N (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321634500.1U CN220570170U (en) | 2023-06-26 | 2023-06-26 | Controlled variable-voltage switch loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321634500.1U CN220570170U (en) | 2023-06-26 | 2023-06-26 | Controlled variable-voltage switch loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220570170U true CN220570170U (en) | 2024-03-08 |
Family
ID=90094758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321634500.1U Active CN220570170U (en) | 2023-06-26 | 2023-06-26 | Controlled variable-voltage switch loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220570170U (en) |
-
2023
- 2023-06-26 CN CN202321634500.1U patent/CN220570170U/en active Active
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