CN210041329U - Operation control power supply circuit based on rotary switch - Google Patents
Operation control power supply circuit based on rotary switch Download PDFInfo
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- CN210041329U CN210041329U CN201921793636.0U CN201921793636U CN210041329U CN 210041329 U CN210041329 U CN 210041329U CN 201921793636 U CN201921793636 U CN 201921793636U CN 210041329 U CN210041329 U CN 210041329U
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Abstract
The utility model discloses an including operation control power, rotary switch, control circuit and load M, operation control power divide into and adopts the control power L1' of a distribution circuit breaker outgoing line side and the control power L11 of incoming line side, rotary switch's input is connected with control power L1' and control power L11 electricity respectively, the rotary switch output passes through control circuit and is connected with load M electricity. Compared with the prior art, the utility model provides an must demolish load connecting cable earlier when original operation is experimental, experimental back and resume again for the fail safe nature of test time shortening greatly, debugging, the maximum possible work efficiency that has improved.
Description
Technical Field
The utility model relates to a power supply circuit especially relates to an operation control power supply circuit based on rotary switch.
Background
The operation control power supply of each feeder branch of the traditional low-voltage switch cabinet, power distribution cabinet and the like is taken from the outgoing side of a primary power distribution circuit breaker. The operational control power must be available after the last trip of the distribution circuit breaker. This presents the following contradiction: when an operation control test is carried out firstly during debugging, a load cannot be powered on at one time; but the power distribution circuit breaker must be switched once again (the load is also powered on at the same time) to obtain operational control power. At present, the load connecting cable is firstly dismantled and restored after the test during the operation test, so that the test time is greatly shortened, and the safety and the reliability of debugging are greatly improved. The test speed regulation needs repeated manual wiring switching. An operation control schematic diagram of a traditional switch cabinet in engineering is shown in figure 3.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solve above-mentioned problem, when carrying out distribution equipment's debugging, convenient operation, safe and reliable has greatly improved work efficiency, and based on the operation control power supply circuit who rotates the switch.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an operation control power supply circuit based on rotary switch, includes operation control power, rotary switch, control circuit and load M, the operation control power divide into and adopts the control power L1' of a distribution circuit breaker outgoing line side and the control power L11 of incoming line side, rotary switch's input is connected with control power L1' and control power L11 electricity respectively, the rotary switch output passes through control circuit and is connected with load M electricity.
Preferably, the control circuit comprises three-phase wires L11, L12 and L13, the three-phase wires L11, L12 and L13 are respectively electrically connected with a load M, each phase wire is provided with a breaker QF, an intermediate relay KM and a thermal relay KH, and the breaker QF, the intermediate relay KM and the thermal relay KH are sequentially connected in series.
Preferably, the control power supply L1' includes three-phase power supply lines L1, L2, L3, a power supply neutral line N, and a ground line PE, the power supply lines L1, L2, and L3 are electrically connected to three-phase wires L11, L12, and L13, respectively, and the ground line PE is electrically connected to a ground line of the load M.
Preferably, a fuse FU4 is arranged on an electric connecting lead of the rotary switch and the control power supply L11.
Preferably, the load M comprises a local button box, a PLC controller and a power supply fuse.
Preferably, the local button box is composed of an indicator lamp GH and a button switch SA 1.
Compared with the prior art, the utility model has the advantages of: the utility model provides an original operation must demolish load connecting cable earlier when experimental, experimental back and resume again for the fail safe nature of test time shortening greatly, debugging, the most probable has improved work efficiency.
Drawings
FIG. 1 is a circuit diagram of a primary system of the present invention;
FIG. 2 is a schematic diagram of an operation control circuit according to the present invention;
fig. 3 is a schematic diagram of an operation control circuit of a conventional switch cabinet in engineering.
Detailed Description
The present invention will be further explained below.
Example 1: referring to fig. 1 and 2, an operation control power circuit based on a rotary switch comprises an operation control power supply, the rotary switch, a control loop and a load M, wherein the operation control power supply is divided into a control power supply L1 'on the outgoing line side and a control power supply L11 on the incoming line side of a primary distribution circuit breaker, the input end of the rotary switch is electrically connected with the control power supply L1' and the control power supply L11 respectively, and the output end of the rotary switch is electrically connected with the load M through the control loop.
Control circuit is system circuit once, including three-phase wire L11, L12, L13, three-phase wire L11, L12, L13 are connected with load M electricity respectively, all are equipped with circuit breaker QF, auxiliary relay KM, thermorelay KH on every looks wire, circuit breaker QF, auxiliary relay KM, thermorelay KH establish ties in proper order, and circuit breaker QF is arranged in breaking fault current, and auxiliary relay KM is arranged in relay protection and automatic control system to increase the quantity and the capacity of contact, thermorelay KH makes the circuit break carry out overload protection. The control power supply L1' comprises three-phase power supply lines L1, L2, L3, a power supply zero line N and a ground line PE, wherein the power supply lines L1, L2 and L3 are respectively and electrically connected with three-phase leads L11, L12 and L13, and the ground line PE is electrically connected with a ground line of a load M for ground protection. The load M comprises a local button box, a PLC controller and a power supply fuse. The local button box consists of an indicator lamp GH and a button switch SA 1.
The automatic switching method comprises the following steps: during debugging, the change-over switch is arranged at a debugging position, and the operation control power supply L11 can be obtained without switching a distribution circuit breaker once, so that operation control debugging is carried out. When the equipment normally runs, the change-over switch is firstly arranged at the running position, and then the operation control power supply L1' is required to be available after the equipment is put into the power distribution circuit breaker for the last time; therefore, the load can be ensured to be operated by the operator according to the plan only after the control loop obtains the power supply.
Transfer switch contact list:
the operation control power supply for the debugging and running positions of the transfer switch is respectively taken from the wire inlet side and the wire outlet side of the primary distribution circuit breaker.
When debugging the control loop: the change-over switch is placed in a 'debugging' position, and the equipment is debugged under the condition of no load.
Load test and equipment operation: the load test can be carried out by placing the change-over switch at the working position.
The operation control power circuit based on the rotary switch provided by the utility model is introduced in detail, and the principle and the implementation mode of the utility model are explained by applying specific examples, and the description of the above examples is only used for helping to understand the method and the core idea of the utility model; while the invention has been described in terms of specific embodiments and applications, it will be apparent to those skilled in the art that numerous variations and modifications can be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. An operation control power supply circuit based on a rotary switch, characterized in that: including operation control power, rotary switch, control circuit and load M, the operation control power divide into and adopts the control power L1' of a distribution circuit breaker outgoing line side and the control power L11 of incoming line side, rotary switch's input is connected with control power L1' and control power L11 electricity respectively, the rotary switch output passes through control circuit and is connected with load M electricity.
2. A rotary switch based operation control power supply circuit as claimed in claim 1, wherein: control circuit includes three-phase wire L11, L12, L13, three-phase wire L11, L12, L13 are connected with load M electricity respectively, all are equipped with circuit breaker QF, auxiliary relay KM, thermorelay KH on every looks wire, circuit breaker QF, auxiliary relay KM, thermorelay KH establish ties in proper order.
3. A rotary switch based operation control power supply circuit as claimed in claim 2, wherein: the control power supply L1' comprises three-phase power supply lines L1, L2, L3, a power supply neutral line N and a ground line PE, wherein the power supply lines L1, L2 and L3 are respectively and electrically connected with three-phase leads L11, L12 and L13, and the ground line PE is electrically connected with a ground line of a load M.
4. A rotary switch based operation control power supply circuit as claimed in claim 1, wherein: the load M comprises a local button box, a PLC controller and a power supply fuse.
5. A rotary switch based operation control power supply circuit as claimed in claim 4, wherein: the local button box consists of an indicator lamp GH and a button switch SA 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921793636.0U CN210041329U (en) | 2019-10-24 | 2019-10-24 | Operation control power supply circuit based on rotary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921793636.0U CN210041329U (en) | 2019-10-24 | 2019-10-24 | Operation control power supply circuit based on rotary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210041329U true CN210041329U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921793636.0U Active CN210041329U (en) | 2019-10-24 | 2019-10-24 | Operation control power supply circuit based on rotary switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210041329U (en) |
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2019
- 2019-10-24 CN CN201921793636.0U patent/CN210041329U/en active Active
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Address after: No.3 LEGO Avenue, high tech Zone, Leshan City, Sichuan Province 614000 Patentee after: Sichuan weilide Energy Co.,Ltd. Address before: No.3 LEGO Avenue, high tech Zone, Leshan City, Sichuan Province 614000 Patentee before: LESHAN SHENGJIA ELECTRIC Co.,Ltd. |