CN211826993U - Power transformer cooler control box - Google Patents
Power transformer cooler control box Download PDFInfo
- Publication number
- CN211826993U CN211826993U CN202021069363.8U CN202021069363U CN211826993U CN 211826993 U CN211826993 U CN 211826993U CN 202021069363 U CN202021069363 U CN 202021069363U CN 211826993 U CN211826993 U CN 211826993U
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- power supply
- mounting plate
- loop module
- main power
- secondary control
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- 238000001816 cooling Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 19
- 238000005457 optimization Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a power transformer cooler control box, include: the device comprises a mounting plate A, a mounting plate B, a main power supply loop module and a secondary control loop module; the main power supply loop module is arranged on the front surface of the mounting plate A, the secondary control loop module is arranged on the front surface of the mounting plate B, and the back surface of the mounting plate A is oppositely connected with the back surface of the mounting plate B; the main power supply loop module comprises a power supply isolating switch; the main power supply loop module is connected with the secondary control loop module through a cable; the main power supply loop and the secondary control loop are arranged by two mounting plates, so that the power supply and the control power supply are effectively isolated in space, and the influence of the power supply on the control loop is completely isolated; the maintenance of the main power supply loop and the maintenance of the secondary control loop are not affected mutually, the field operation is safer, and the field operation personnel are facilitated to be in favor of maintenance personnel.
Description
Technical Field
The utility model relates to a power transformer cools off technical field, concretely relates to power transformer cooler control box.
Background
The transformer cooler control box is an indispensable auxiliary control system of a large-scale power transformer; according to the detected actual operation temperature and load current parameters of the transformer, automatically switching a transformer cooling device, and starting each cooler group in a delayed manner to ensure that a power supply is stably put into operation, thereby realizing reliable control of a cooling system; the transformer cooler control box comprises a main power supply loop and a secondary control loop, and the main power supply loop and the secondary control loop are usually arranged on the same mounting plate in the commercial power transformer cooler control box, so that the area of the control box is large, the main power supply loop maintenance and the secondary control loop maintenance are mutually influenced due to too many components arranged on the mounting plate, and the misoperation and the potential safety hazard exist during the maintenance; in addition, the transformer cooling control system is powered by two independent power supplies, when two power supply main switches or power supply main contactors are overhauled and maintained, two sections of power supplies need to be disconnected simultaneously, the normal operation of the transformer is seriously affected, and the inconvenience is brought to the work of overhaul, operation and maintenance personnel.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a power transformer cooler control box is based on the main power supply circuit and the control circuit split screen in the control box and arrange and the improvement of main power supply circuit structure for main power supply circuit overhauls to maintain and secondary control circuit overhauls to maintain each other and does not influence, and field operation is safer, is favorable to the on-the-spot operation personnel.
The utility model discloses a following technical scheme realizes:
this scheme provides a power transformer cooler control box, includes: the device comprises a mounting plate A, a mounting plate B, a main power supply loop module and a secondary control loop module; the main power supply loop module is arranged on the front surface of the mounting plate A, the secondary control loop module is arranged on the front surface of the mounting plate B, and the back surface of the mounting plate A is oppositely connected with the back surface of the mounting plate B;
the main power supply loop module comprises a power supply isolating switch;
the main power supply loop module is connected with the secondary control loop module through a cable.
The further optimization scheme is that the box door structure further comprises an outer box, the mounting plate A and the mounting plate B are mounted in the outer box, the box doors are arranged on the front face and the back face of the outer box, the front box door is opposite to the front face of the mounting plate A, and the back box door is opposite to the front face of the mounting plate B.
The further optimized scheme is that the main power circuit module further comprises: the three-phase power supply is connected with the power supply isolating switch group from the power supply inlet end after passing through the power supply main switch group and the power supply main contact group, and the output end of the power supply isolating switch group is connected with the secondary control loop module.
The further optimization scheme is that the secondary control loop module comprises: switch control unit, circuit breaker unit, contactor unit and binding post.
The further optimization scheme is that after the output end of the main power supply loop module is connected with the circuit breaker unit, the main power supply loop module passes through the contactor unit and is connected with the cooling device outside the box through the wiring terminal.
The further optimization scheme is that the switch control unit comprises: a switching power supply, a programmable controller and a relay unit.
A further optimization scheme is that a gap for placing a cable is reserved between the mounting plate A and the mounting plate B.
The working principle of the scheme is as follows: according to the power transformer cooler control box, the main power supply loop and the secondary control loop are respectively installed on the installation plate A and the installation plate B based on split-screen arrangement of the main power supply loop and the control loop circuit in the control box and improvement of a main power supply loop structure, so that mutual influence between main power supply loop maintenance and secondary control loop maintenance is realized, field operation is safer, and field operation personnel are facilitated.
The main power supply loop and the secondary control loop are respectively arranged on the mounting plate A and the mounting plate B, and when a maintainer overhauls the main power supply loop, the maintainer can only operate on the mounting plate A; because two sections power supply inlet wires of the main power supply loop in the scheme are matched with corresponding power supply isolating switches, when two power supply main switches or power supply main contactors are overhauled and maintained, only the power supply isolating switch of the power supply at the overhauling section needs to be disconnected, and another power supply can normally work in the overhauling process, so that the normal operation of the transformer cannot be influenced.
The main power supply loop and the secondary control loop of a power transformer cooler control box on the market are usually arranged on the same mounting plate, so that the area of the control box is large, the main power supply loop maintenance and the secondary control loop maintenance are mutually influenced due to too many components arranged on the mounting plate, and misoperation and potential safety hazard exist during maintenance; the scheme effectively isolates the power supply and the control power supply in space, and completely isolates the influence of the power supply on a control loop; the control outer box is provided with two side doors, so that the field operation is safer.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model relates to a power transformer cooler control box, a main power supply loop module and a secondary control loop module are arranged by two mounting plates, a power supply and a control power supply are effectively isolated in space, and the influence of the power supply on the control loop is completely isolated; the maintenance of the main power supply loop and the maintenance of the secondary control loop are not affected mutually, so that the field operation is safer, and field operation personnel are facilitated to maintenance personnel;
2. the utility model relates to a power transformer cooler control box, two sections power inlet wires in main power supply circuit all match corresponding power isolator, when overhauing and maintaining a certain section power cord, can break off this power isolator and overhaul, need not all break off two sections power inlet wires.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front schematic view of the mounting plate a of the present invention.
Fig. 3 is a front schematic view of the mounting plate B of the present invention.
Reference numbers and corresponding part names in the drawings:
the system comprises a 1-mounting plate A, a 2-mounting plate B, a 3-main power supply loop module, a 4-secondary control loop module, a 5-outer box, a 6-switch control unit, a 61-switch power supply, a 62-programmable controller, a 63-relay unit, a 7-breaker unit, an 8-contactor unit and a 9-wiring terminal.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
As shown in fig. 1 to 3, the power transformer cooler control box according to the present invention includes: mounting plate A1, mounting plate B2, main power circuit module 3 and secondary control circuit module 4; the main power circuit module 3 is arranged on the front surface of the mounting plate A1, the secondary control circuit module 4 is arranged on the front surface of the mounting plate B2, and the back surface of the mounting plate A1 is oppositely connected with the back surface of the mounting plate B2;
the main power supply loop module 3 comprises a power supply isolating switch group;
the main power circuit module 3 and the secondary control circuit module 4 are connected by a cable.
Still include outer container 5, mounting panel A1 and mounting panel B2 install in outer container 5, the chamber door is all seted up to outer container 5 front and back, and front chamber door is relative with mounting panel A1 front, and back chamber door is relative with mounting panel B2 front.
The main power supply circuit module 3 further includes: the three-phase power supply is connected with the power supply isolating switch group from the power supply inlet end after passing through the power supply main switch group and the power supply main contact group, and the output end of the power supply isolating switch group is connected with the secondary control loop module 4.
The secondary control loop module 4 includes: a switch control unit 6, a breaker unit 7, a contactor unit 8 and a connection terminal 9.
After the output end of the main power circuit module 3 is connected with the circuit breaker unit 7, the circuit breaker unit is connected with a cooling device outside the box through a connecting terminal 9 through a contactor unit 8.
The switch control unit 6 includes: a switching power supply 61, a programmable controller 62 and a relay unit 63.
A gap for placing cables is left between the mounting plate a1 and the mounting plate B2.
The power transformer cooler control box provides two groups of power supplies to supply power to the cooling device, 2-path AC.380V power supply inlet wires can be switched with each other, and when one path of power supply fails, the other group can be automatically switched; the control box controls the number of the cooler groups to be 5, the running state of each power supply and the running state of the cooler groups can be observed from the indicator lamps on the panel of the box body, and the maintenance and the overhaul of personnel are facilitated.
The main power supply loop and the secondary control loop of the cooler control box are arranged by two mounting plates. This separate arrangement has the following advantages:
1. the power supply and the control power supply are effectively isolated in space, and the influence of the power supply on a control loop is completely isolated;
2. the maintenance of the main power supply loop and the maintenance of the secondary control loop are not affected mutually, which is beneficial to maintenance personnel;
3. the main power supply loop and the secondary control loop are arranged by two mounting plates, so that the field operation is safer, and the field operation personnel are facilitated.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A power transformer cooler control box, comprising: the device comprises a mounting plate A (1), a mounting plate B (2), a main power supply loop module (3) and a secondary control loop module (4); the main power supply loop module (3) is arranged on the front surface of the mounting plate A (1), the secondary control loop module (4) is arranged on the front surface of the mounting plate B (2), and the back surface of the mounting plate A (1) is oppositely connected with the back surface of the mounting plate B (2);
the main power loop module (3) comprises a power isolation switch group;
the main power supply loop module (3) is connected with the secondary control loop module (4) through a cable.
2. The power transformer cooler control box according to claim 1, further comprising an outer box (5), wherein the mounting plate a (1) and the mounting plate B (2) are mounted in the outer box (5), and the front side and the back side of the outer box (5) are provided with box doors, the front box door is opposite to the front side of the mounting plate a (1), and the back box door is opposite to the front side of the mounting plate B (2).
3. A power transformer cooler control box according to claim 1, characterized in that the main power circuit module (3) further comprises: the three-phase power supply is connected with the power supply isolating switch group from the power supply inlet end after passing through the power supply main switch group and the power supply main contact group, and the output end of the power supply isolating switch group is connected with the secondary control loop module (4).
4. A power transformer cooler control box according to claim 1, characterized in that the secondary control loop module (4) comprises: the switch control unit (6), the breaker unit (7), the contactor unit (8) and the wiring terminal (9).
5. A power transformer cooler control box according to claim 4, characterized in that after the output of the main power circuit module (3) is connected with the breaker unit (7), it is connected with the cooling device outside the box through the contactor unit (8) by the connection terminal (9).
6. A power transformer cooler control box according to claim 4, characterized by the switch control unit (6) comprising: a switching power supply (61), a programmable controller (62) and a relay unit (63).
7. A power transformer cooler control box according to claim 1, characterized in that a gap for placing cables is left between the mounting plate a (1) and the mounting plate B (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021069363.8U CN211826993U (en) | 2020-06-11 | 2020-06-11 | Power transformer cooler control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021069363.8U CN211826993U (en) | 2020-06-11 | 2020-06-11 | Power transformer cooler control box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211826993U true CN211826993U (en) | 2020-10-30 |
Family
ID=73025984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021069363.8U Active CN211826993U (en) | 2020-06-11 | 2020-06-11 | Power transformer cooler control box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211826993U (en) |
-
2020
- 2020-06-11 CN CN202021069363.8U patent/CN211826993U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 2, Unit 1, Building 12, No. 1093, Section 4, West Airport Avenue, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu City, Sichuan Province, 610000 Patentee after: SICHUAN GUANGSHUN ELECTRIC Co.,Ltd. Address before: 610000 No. 10, Chengjia Road, Longtan Urban Industrial Development Zone, Section 2, East Third Ring Road, Chenghua District, Chengdu, Sichuan Patentee before: SICHUAN GUANGSHUN ELECTRIC Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |