CN216489067U - Tower machine high voltage power supply system - Google Patents
Tower machine high voltage power supply system Download PDFInfo
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- CN216489067U CN216489067U CN202122889894.2U CN202122889894U CN216489067U CN 216489067 U CN216489067 U CN 216489067U CN 202122889894 U CN202122889894 U CN 202122889894U CN 216489067 U CN216489067 U CN 216489067U
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Abstract
The utility model belongs to the technical field of tower cranes, and particularly relates to a high-voltage power supply system of a tower crane, which comprises a ground high-voltage power supply cabinet arranged at the bottom of the tower crane, a box-type substation arranged on a platform at the top of the tower crane, and high-voltage cables for connecting a high-voltage feeder cabinet of a substation with the ground high-voltage power supply cabinet and connecting the ground high-voltage feeder cabinet with the box-type substation. The utility model provides a tower crane high-voltage power supply system which adopts a high-voltage power supply mode to supply power to a tower crane, can greatly reduce the nominal section of a power supply single-phase cable, and has the advantages of simple manufacture, convenient field installation and low cost.
Description
Technical Field
The utility model belongs to the technical field of tower cranes, and particularly relates to a high-voltage power supply system of a tower crane.
Background
The power supply in the existing tower crane industry generally adopts a low-voltage three-phase alternating current 380V/400V power supply mode, but for a large or ultra-large tower crane, because the required power is large, if the low-voltage three-phase alternating current 380V/400V power supply mode is adopted, the single-phase cable can cause the nominal section of the single-phase cable to even reach more than 300 square millimeters due to large carrying current, the price is high, and meanwhile, the manufacturing and field installation construction are difficult.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides a tower crane high-voltage power supply system.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a tower machine high voltage power supply system, is including installing the ground high voltage power supply cabinet at the tower bottom and installing box-type substation on tower machine top platform and the high tension cable who connects transformer substation high voltage feeder cabinet and ground high voltage power supply cabinet, ground high voltage power supply cabinet and box-type substation, box-type substation is advanced electric unit, transformer unit and low pressure power consumption unit by the high pressure that connects gradually and is constituteed, the line outgoing of ground high voltage power supply cabinet advances electric unit with high pressure and is connected, low pressure power consumption unit and each power consumption unit connection of tower machine.
Furthermore, the ground high-voltage power supply cabinet mainly comprises an isolating switch, a vacuum circuit breaker, a voltage transformer and a current transformer which are connected in sequence.
Furthermore, the ground high-voltage power supply cabinet is also provided with a microcomputer protection device and an electrified display.
Further, the electrified display comprises an electrified display arranged at the front end of the isolating switch and an electrified display arranged at the current transformer.
Further, the current transformer is a zero sequence current transformer.
Further, the high-voltage power inlet unit mainly comprises a load switch and a fuse.
Furthermore, the high-voltage electricity inlet unit also comprises an electrified display, wherein the electrified display is arranged at the front end of the load switch, and the electrified display is arranged at the wire outlet end of the high-voltage electricity inlet unit.
Further, the converter unit mainly includes a transformer.
Further, the transformer is a dry-type transformer.
Furthermore, a plurality of load circuits are arranged in the low-voltage power utilization unit and are connected with the power utilization unit of the tower crane through a terminal load switch.
The utility model provides a tower crane high-voltage power supply system which adopts a high-voltage power supply mode to supply power to a tower crane, can greatly reduce the nominal section of a power supply single-phase cable, and has the advantages of simple manufacture, convenient field installation and low cost.
Drawings
FIG. 1: tower machine high voltage power supply system diagram.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not to be construed as limiting the utility model.
As shown in fig. 1, a tower crane high-voltage power supply system comprises a ground high-voltage power supply cabinet 2 installed at the tower bottom for power distribution control protection, and a box-type substation 3 installed on a platform at the top of a tower crane to convert high voltage into low voltage for supplying power to each power utilization unit; the high-voltage cable 4 is used for connecting the high-voltage feeder cabinet 1 of the substation with the ground high-voltage power supply cabinet 2, and connecting the ground high-voltage power supply cabinet 2 with the box-type substation 3 on the top platform of the tower crane.
The ground high-voltage power supply cabinet 2 is installed at the bottom of the tower crane, high voltage introduced by the high-voltage feeder cabinet 1 of the substation sequentially passes through the isolating switch 21, the vacuum circuit breaker 22, the voltage transformer 23 and the current transformer 24, and is finally introduced to the box-type substation 3 on the top platform of the tower crane through the high-voltage cable 4. The ground high-voltage power supply cabinet is provided with a microcomputer protection device and a charged display to realize the monitoring of parameters such as high-voltage inlet and outlet voltage and current. An incoming electrification display 26 is provided at the front end of the disconnector 21, and an outgoing electrification display 25 is provided at the current transformer 24. The current transformer 24 is a zero sequence current transformer.
The box-type substation 3 on the top platform of the tower crane consists of a high-voltage power supply unit 31, a power converter unit 32 and a low-voltage power utilization unit 33. An outlet wire of the ground high-voltage power supply cabinet 2 is connected with the high-voltage power supply unit 31, and enters the transformer unit 32 through the load switch 311 and the fuse 312 in sequence, and the transformer 321 converts high-voltage power into three-phase alternating current of 400V and distributes the low-voltage power to each power utilization unit of the low-voltage power utilization unit 33. The incoming and outgoing terminals of the high-voltage electricity incoming unit 31 of the box-type substation 3 are provided with live displays for monitoring parameters such as voltage and current, the incoming live display 314 is provided at the front end of the load switch 311, and the outgoing terminal of the high-voltage electricity incoming unit 31 is provided with an outgoing live display 313. The transformer 321 of the power converter unit 32 is a dry-type transformer. And a multi-path load circuit is arranged in the low-voltage power utilization unit 33 to supply power to each power utilization unit of the tower crane. Each load line is connected to the electricity consuming unit via a terminal load switch 331.
Claims (10)
1. The utility model provides a tower machine high voltage power supply system, includes ground high voltage power supply cabinet (2) of installing at the tower bottom and install box-type substation (3) and connect high voltage feeder cabinet (1) of electric substation and ground high voltage power supply cabinet (2), ground high voltage power supply cabinet (2) and high tension cable (4) of box-type substation (3) on tower machine top platform, its characterized in that: the box-type substation (3) is formed by a high-voltage power supply unit (31), a power converter unit (32) and a low-voltage power utilization unit (33) which are sequentially connected, an outgoing line of the ground high-voltage power supply cabinet (2) is connected with the high-voltage power supply unit (31), and the low-voltage power utilization unit (33) is connected with each power utilization unit of the tower crane.
2. The tower crane high-voltage power supply system according to claim 1, characterized in that: the ground high-voltage power supply cabinet (2) mainly comprises an isolating switch (21), a vacuum circuit breaker (22), a voltage transformer (23) and a current transformer (24) which are connected in sequence.
3. The tower crane high-voltage power supply system according to claim 2, characterized in that: the ground high-voltage power supply cabinet (2) is also provided with a microcomputer protection device and an electrified display.
4. The tower crane high-voltage power supply system according to claim 3, characterized in that: the live display comprises a live incoming display (26) arranged at the front end of the isolating switch (21) and a live outgoing display (25) arranged at the current transformer (24).
5. A tower crane high-voltage power supply system according to any one of claims 2, 3 and 4, characterized in that: the current transformer (24) is a zero sequence current transformer.
6. The tower crane high-voltage power supply system according to claim 1, characterized in that: the high-voltage power inlet unit (31) mainly comprises a load switch (311) and a fuse (312).
7. The tower crane high-voltage power supply system according to claim 6, characterized in that: the high-voltage electricity inlet unit (31) further comprises an electrified display, the electrified display (314) is arranged at the front end of the load switch (311), and the electrified display (313) is arranged at the outlet end of the high-voltage electricity inlet unit (31).
8. The tower crane high-voltage power supply system according to claim 1, characterized in that: the converter unit (32) mainly includes a transformer (321).
9. The tower crane high-voltage power supply system according to claim 8, characterized in that: the transformer (321) is a dry transformer.
10. The tower crane high-voltage power supply system according to claim 1, characterized in that: and a multi-path load circuit is arranged in the low-voltage power utilization unit (33) and is connected with the power utilization unit of the tower crane through a terminal load switch (331).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122889894.2U CN216489067U (en) | 2021-11-24 | 2021-11-24 | Tower machine high voltage power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122889894.2U CN216489067U (en) | 2021-11-24 | 2021-11-24 | Tower machine high voltage power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216489067U true CN216489067U (en) | 2022-05-10 |
Family
ID=81398690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122889894.2U Active CN216489067U (en) | 2021-11-24 | 2021-11-24 | Tower machine high voltage power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216489067U (en) |
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2021
- 2021-11-24 CN CN202122889894.2U patent/CN216489067U/en active Active
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