CN218513965U - 66kV gas insulation looped netowrk cabinet that offshore wind turbine used - Google Patents
66kV gas insulation looped netowrk cabinet that offshore wind turbine used Download PDFInfo
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- CN218513965U CN218513965U CN202221924634.2U CN202221924634U CN218513965U CN 218513965 U CN218513965 U CN 218513965U CN 202221924634 U CN202221924634 U CN 202221924634U CN 218513965 U CN218513965 U CN 218513965U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model provides a 66kV gas-insulated looped netowrk cabinet that offshore wind turbine used, including one advance one and go out looped netowrk cabinet, one advance two play looped netowrk cabinet and one advance three play looped netowrk cabinets, set up one into two play looped netowrk cabinets, one advance three play looped netowrk cabinets into the L type, can utilize the effective space in the fan tower section of thick bamboo to the at utmost, when the voltage level is higher, the space advantage is especially obvious. The fan steps up and becomes the outlet side and every time the submarine cable goes out the line side and all be provided with three station switches, conveniently rises to become the power failure of submarine cable to overhaul to the fan, and the earthing terminal of three station switches of inlet wire side still can regard as inlet wire cable withstand voltage test's access point to the realization is to cable, cable terminal, cable socket's integration withstand voltage test. The blower boosting variable cable is led in from the upper part of the ring main unit, and the submarine cable is led out from the lower part of the ring main unit, so that the cable crossing can be avoided, and the wiring is simple and clear.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power generation, concretely relates to 66kV gas insulation looped netowrk cabinet that offshore wind turbine used.
Background
With the development of offshore wind power to deep and far sea and large unit capacity, it is imperative that the high-voltage side of the wind turbine generator adopts a 66kV voltage level.
The higher the voltage grade is, the higher the insulation requirement on electrical equipment is, therefore, the size of the 66kV gas insulation ring main unit is larger than that of the currently and commonly used 35kV gas insulation ring main unit, especially for the ring main unit with multiple submarine cables, the structure and the size of the ring main unit are adjusted to enable the ring main unit to be placed in a fan tower, and the necessary maintenance space is particularly important.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a 66kV gas insulation looped netowrk cabinet that offshore wind turbine used through changing 66kV gas insulation looped netowrk cabinet body structure, optimizing the inlet wire mode to solve the great difficult problem of 66kV gas insulation looped netowrk cabinet body size, and optimize the space in the tower section of thick bamboo.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a 66kV gas insulation looped netowrk cabinet that offshore wind turbine used which characterized in that: the cabinet type of the 66kV gas insulation ring main unit for the offshore wind turbine comprises a one-in one-out ring main unit, a one-in two-out ring main unit and a one-in three-out ring main unit;
the three-station switch is arranged on the outlet side of the fan boosting transformer and the outlet side of each submarine cable, so that the maintenance of the fan boosting transformer and the submarine cables in power failure is facilitated;
the current transformer, the vacuum circuit breaker, the three-station switch and the bus are all located in the insulating gas box.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: a top view of a cabinet body of the one-in one-out ring main unit is in a straight long strip shape, a return fan boosting power transformation cable is arranged at the upper rear of the cabinet, a return submarine cable is arranged at the lower rear of the cabinet, and an operation panel is arranged in front of the cabinet.
As the utility model discloses a preferred technical scheme: the top view of the cabinet body of the one-inlet two-outlet ring main unit is L-shaped, and the break angle is positioned at the bus. A return fan boosting power cable is arranged above the rear of the cabinet for incoming wires, a return submarine cable is arranged below the rear of the cabinet for outgoing wires, another return submarine cable is arranged below the front of the cabinet for outgoing wires, and an operation panel is arranged in front of the cabinet.
As the utility model discloses a preferred technical scheme: the top view of the cabinet body of the one-inlet and three-outlet ring main unit is L-shaped, and the folded angle is positioned at a bus. A return fan boosting power cable is arranged above the rear of the cabinet for incoming wires, a return submarine cable is arranged below the rear of the cabinet for outgoing wires, two other return submarine cables are arranged below the front of the cabinet for outgoing wires, and an operation panel is arranged in front of the cabinet.
As the utility model discloses a preferred technical scheme: the one-inlet two-outlet ring main unit and the one-inlet three-outlet ring main unit are L-shaped in plan view, so that the one-inlet two-outlet ring main unit and the one-inlet three-outlet ring main unit can be placed close to one side of the circular tower drum of the fan as far as possible.
As the utility model discloses a preferred technical scheme: the maintenance channel in the middle of the circular tower cylinder of the fan can also be used as an overhaul channel for the outgoing line of the submarine cable.
As the utility model discloses a preferred technical scheme: the grounding end of the three-station switch on the incoming side of the submarine cable can also be used as an access point of a withstand voltage test of the incoming cable, so that the integrated withstand voltage test of the submarine cable, a submarine cable terminal and a submarine cable socket is realized.
As the utility model discloses a preferred technical scheme: the insulating gas in the gas box is SF 6 Or dry air or other insulating, environmentally friendly gas.
The utility model provides a 66kV gas-insulated looped netowrk cabinet that offshore wind turbine used, including one advance one and go out looped netowrk cabinet, one advance two play looped netowrk cabinet and one advance three play looped netowrk cabinets, set up one into two play looped netowrk cabinets, one advance three play looped netowrk cabinets into the L type, can utilize the effective space in the fan tower section of thick bamboo to the at utmost, when the voltage level is higher, the space advantage is especially obvious. The fan steps up and becomes the outlet side and every time the submarine cable goes out the line side and all be provided with three station switches, conveniently rises to become the power failure of submarine cable to overhaul to the fan, and the earthing terminal of three station switches of inlet wire side still can regard as inlet wire cable withstand voltage test's access point to the realization is to cable, cable terminal, cable socket's integration withstand voltage test. The blower boosting variable cable is led in from the upper part of the ring main unit, and the submarine cable is led out from the lower part of the ring main unit, so that the cable crossing can be avoided, and the wiring is simple and clear.
Specifically, compared with the prior art, the utility model provides a 66kV gas-insulated looped netowrk cabinet that offshore wind turbine used has following beneficial effect:
(1) L type cabinet body structure can unite two into one the looped netowrk cabinet in the fan tower section of thick bamboo maintenance area with the maintenance area, rationally optimizes the occupation space of looped netowrk cabinet in the fan tower section of thick bamboo, makes the miniaturization of fan tower section of thick bamboo possess the feasibility.
(2) The fan only steps up and becomes the outlet side and set up the circuit breaker, and at the three station switches that every time sea cable outlet side set up, both can reduce equipment cost, be favorable to again the power failure to the sea cable to overhaul.
(3) The fan step-up transformer incoming line adopts an upper incoming line, the submarine cable outgoing line adopts a lower outgoing line, and the multi-circuit submarine cables are respectively outgoing lines behind the cabinet in front of the cabinet, so that the incoming and outgoing lines are clear, cable cross cannot be generated, and the maintenance is convenient.
Drawings
Fig. 1a to 1c are schematic views of a ring main unit with one inlet and one outlet provided by the present invention;
fig. 2a-2c are schematic views of a ring main unit with one inlet and two outlets according to the present invention;
fig. 3a-3c are diagrams of a ring main unit with one inlet and three outlets according to the present invention;
in the figure: the system comprises an operation panel 1, an operation mechanism 2, a vacuum circuit breaker 3, three-position switches 4-1, 4-2, 4-3 and 4-4, a fan boosting transformer cable incoming module 5, a current transformer 6, submarine cable outgoing modules 7-1, 7-2 and 7-3, a bus 8, a fan boosting transformer 9, an overhaul area 10, a maintenance area 11, a ring main unit cabinet 12 and a fan tower 13.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An incoming ring main unit and an outgoing ring main unit of a 66kV gas insulation ring main unit for an offshore wind turbine are shown in figures 1a-1 c. FIG. 1a is a cabinet type diagram, FIG. 1b is a wiring diagram, and FIG. 1c is a layout diagram.
The electric wiring path of the long-line strip-shaped one-inlet one-outlet ring main unit is as follows in sequence: the device comprises a fan boosting transformation cable inlet module 5, a current transformer 6, a three-position switch 4-1, a vacuum circuit breaker 3, a bus 8 and a three-position switch 4-2, and is finally led out through a submarine cable outlet module 7-1.
The front cabinet and the rear cabinet of the ring main unit are an overhaul area 10, and the side surface of the cabinet is a maintenance area 11.
Fig. 2a-2c show a one-in two-out ring main unit of a 66kV gas insulated ring main unit for an offshore wind turbine. Fig. 2a is a cabinet type diagram, fig. 2b is a wiring diagram, and fig. 2c is a layout diagram.
The electrical wiring path of the L-shaped one-inlet two-outlet ring main unit is as follows in sequence: the wind turbine booster transformation cable is led out through a wind turbine booster transformation cable inlet module 5, a current transformer 6, a three-position switch 4-1, a vacuum circuit breaker 3, a bus 8, three-position switches 4-2 and 4-3 and submarine cable outlet modules 7-1 and 7-2.
An incoming three-outgoing ring main unit of a 66kV gas insulation ring main unit for an offshore wind turbine is shown in figures 3a-3 c. Fig. 3a is a cabinet type diagram, fig. 3b is a wiring diagram, and fig. 3c is a layout diagram.
The electrical wiring path of the L-shaped one-inlet three-outlet ring main unit is as follows in sequence: the wind turbine booster transformation cable is led out through a submarine cable outlet module 7-1 to 7-3, and comprises a wind turbine booster transformation cable inlet module 5, a current transformer 6, a three-position switch 4-1, a vacuum circuit breaker 3, a bus 8 and three-position switches 4-2 to 4-4.
The one-inlet two-outlet ring main unit and the one-inlet three-outlet ring main unit are arranged in the front cabinet and the rear cabinet of the ring main unit and are respectively an overhaul area 10, and the side surface of the ring main unit is a maintenance area 11. Because the cabinet body is L-shaped, the overhaul region in front of the cabinet can be overlapped with a part of the maintenance region, and therefore the space in the tower barrel is fully utilized.
The above-mentioned embodiments are only examples for clearly illustrating the present invention, and do not limit the present invention. The present invention may be subject to various changes and modifications by those skilled in the art. Any modification, equivalent replacement, obvious change and the like which are within the principle and the theoretical scope of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a 66kV gas insulation looped netowrk cabinet that offshore wind turbine used which characterized in that: the cabinet type of the 66kV gas insulation ring main unit for the offshore wind turbine comprises a one-in one-out ring main unit, a one-in two-out ring main unit and a one-in three-out ring main unit;
the booster transformer outlet side of the fan and the outlet side of each submarine cable are respectively provided with a three-station switch;
the current transformer, the vacuum circuit breaker, the three-station switch and the bus are all located in the insulating gas box.
2. The 66kV gas-insulated ring main unit for the offshore wind turbine according to claim 1, wherein: a top view of a cabinet body of the one-in one-out ring main unit is in a straight long strip shape, a return fan boosting power transformation cable is arranged at the upper rear of the cabinet, a return submarine cable is arranged at the lower rear of the cabinet, and an operation panel is arranged in front of the cabinet.
3. The 66kV gas-insulated ring main unit for the offshore wind turbine as recited in claim 1, wherein: the top view of the cabinet body of the one-inlet two-outlet ring main unit is L-shaped, and the break angle is positioned at the bus; a return fan boosting power cable is arranged above the rear of the cabinet for incoming wires, a return submarine cable is arranged below the rear of the cabinet for outgoing wires, another return submarine cable is arranged below the front of the cabinet for outgoing wires, and an operation panel is arranged in front of the cabinet.
4. The 66kV gas-insulated ring main unit for the offshore wind turbine according to claim 1, wherein: the top view of the cabinet body of the one-inlet three-outlet ring main unit is L-shaped, and the break angle is positioned at the bus; a return fan boosting power cable is arranged above the rear of the cabinet for incoming wires, a return submarine cable is arranged below the rear of the cabinet for outgoing wires, two other return submarine cables are arranged below the front of the cabinet for outgoing wires, and an operation panel is arranged in front of the cabinet.
5. The 66kV gas-insulated ring main unit for the offshore wind turbine according to claim 3 or 4, wherein: a66 kV gas insulation ring main unit for an offshore wind turbine is arranged close to one side of a circular tower barrel of the wind turbine.
6. The 66kV gas-insulated ring main unit for the offshore wind turbine according to claim 5, wherein: and a maintenance channel in the middle of the circular tower cylinder of the fan is used as an overhaul channel for the outgoing line of the submarine cable.
7. The 66kV gas-insulated ring main unit for the offshore wind turbine as recited in claim 1, wherein: and the grounding end of the three-station switch on the incoming side of the submarine cable is used as an access point for the withstand voltage test of the incoming cable.
8. The 66kV gas-insulated ring main unit for the offshore wind turbine according to claim 1, wherein: the insulating gas in the gas box is SF 6 Or dry air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221924634.2U CN218513965U (en) | 2022-07-25 | 2022-07-25 | 66kV gas insulation looped netowrk cabinet that offshore wind turbine used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221924634.2U CN218513965U (en) | 2022-07-25 | 2022-07-25 | 66kV gas insulation looped netowrk cabinet that offshore wind turbine used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218513965U true CN218513965U (en) | 2023-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221924634.2U Active CN218513965U (en) | 2022-07-25 | 2022-07-25 | 66kV gas insulation looped netowrk cabinet that offshore wind turbine used |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218513965U (en) |
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2022
- 2022-07-25 CN CN202221924634.2U patent/CN218513965U/en active Active
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