CN215071312U - Three-phase box-shared GIS structure for wind power tower - Google Patents
Three-phase box-shared GIS structure for wind power tower Download PDFInfo
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- CN215071312U CN215071312U CN202121568640.4U CN202121568640U CN215071312U CN 215071312 U CN215071312 U CN 215071312U CN 202121568640 U CN202121568640 U CN 202121568640U CN 215071312 U CN215071312 U CN 215071312U
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- grounding switch
- isolation grounding
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Abstract
The utility model belongs to the field of power equipment, and discloses a three-phase box-shared GIS structure for a wind power tower, which comprises a control cubicle, a circuit breaker, a first isolation grounding switch, a second isolation grounding switch, a third isolation grounding switch, a first current transformer and a voltage transformer, wherein the circuit breaker is in telecommunication connection with the control cubicle; the first isolation grounding switch and the second isolation grounding switch are arranged along the vertical direction, and the third isolation grounding switch is arranged along the horizontal direction; the lower part of the first isolation grounding switch is provided with a first cable terminal which is electrically connected; the lower part of the second isolation grounding switch is provided with a second cable terminal which is electrically connected; a third cable terminal which is electrically connected is arranged on the second current transformer; the first and second cable terminations are wired down and the third cable termination is wired up. The utility model discloses GIS structure reduces because the crooked space that occupies of cable, compact structure, and area is little, is convenient for arrange in fan tower section of thick bamboo.
Description
Technical Field
The utility model belongs to the power equipment field relates to a box GIS structure is altogether to wind power tower cylinder with three-phase.
Background
Offshore wind power is being converted to large-capacity units, the current maximum capacity is 12MW, and 15MW or even 20MW offshore wind power units can be generated in the future. However, as the capacity is larger and larger, the relative output voltage requirement is higher, so that the conventional arrangement mode of a high-voltage GIS (gas insulated switchgear) cannot meet the system wiring mode of an offshore wind power tower.
The required parameter of marine for tower section of thick bamboo GIS is not higher than current GIS, consequently does not need to develop neotype product, however, the current collection circuit of offshore wind turbine generator system is that many fans are parallelly connected back and send to marine booster station again, the circuit breaker 3 of every fan all has 2 inlet wires and one to be qualified for the next round of competitions, the inlet and outlet line structure is different with current product, moreover, the dry-type cable plug of high voltage only cut straightly the form, the inlet and outlet line need have certain distance with ground, consequently, need change current land GIS's arrangement structure.
At present, a first incoming line and a first outgoing line are generally connected to the lower part of a breaker conductor, and a second incoming line is connected to the upper part of the breaker conductor. However, since the lower portion of the breaker conductor is too close to the ground, the cable can only be installed on the side if the cable is to be installed, and thus the cable has a large turning radius, which takes up a lot of space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art, offshore wind turbine generator system's GIS's arrangement structure leads to cable turning radius great, needs to occupy the shortcoming in a large amount of spaces, provides a box GIS structure is altogether to three-phase for wind power tower cylinder.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a three-phase box-shared GIS structure for a wind power tower comprises a control cubicle, a circuit breaker, a first isolation grounding switch, a second isolation grounding switch, a third isolation grounding switch, a first current transformer, a second current transformer and a voltage transformer, wherein the circuit breaker, the first isolation grounding switch, the second isolation grounding switch, the third isolation grounding switch, the first current transformer, the second current transformer and the voltage transformer are in communication connection with the control cubicle; the first isolation grounding switch and the first current transformer are electrically connected with an upper conductor of the circuit breaker; one end of the first current transformer, which is far away from the circuit breaker, is electrically connected with the second isolation grounding switch; the third isolating grounding switch is electrically connected with a lower conductor of the circuit breaker; the first isolation grounding switch and the second isolation grounding switch are arranged along the vertical direction, and the third isolation grounding switch is arranged along the horizontal direction; the lower part of the first isolation grounding switch is provided with a first cable terminal which is electrically connected, and the first cable terminal is connected downwards; the lower part of the second isolation grounding switch is provided with a second cable terminal which is electrically connected, and the second cable terminal is connected downwards; a three-phase common-box bus which is electrically connected is arranged on one side, away from the circuit breaker, of the third isolation grounding switch, and the three-phase common-box bus is electrically connected with the second current transformer and the voltage transformer; and a third cable terminal which is electrically connected is arranged on the second current transformer, and the third cable terminal is connected upwards.
The utility model discloses further improvement lies in:
and the upper part of the first isolation grounding switch is provided with a first lightning arrester which is electrically connected, and the first lightning arrester is in communication connection with the control cubicle.
And the upper part of the second isolation grounding switch is provided with a second lightning arrester which is electrically connected, and the second lightning arrester is in communication connection with the control cubicle.
The first isolation grounding switch, the second isolation grounding switch and the third isolation grounding switch are all three-station isolation grounding switches.
The third cable terminal comprises three sub-cable terminals which correspond to the phase a, the phase b and the phase c of the alternating current one by one, the three sub-cable terminals are electrically connected with the second current transformer, and the three sub-cable terminals are arranged along the length direction of the three-phase common-box bus.
And the moving side of the third isolating grounding switch is electrically connected with a lower conductor of the circuit breaker, and the static side of the third isolating grounding switch is electrically connected with a third cable terminal through a three-phase common box bus.
The first isolation grounding switch and the second isolation grounding switch are respectively positioned at two symmetrical sides of the circuit breaker.
The device also comprises a base; the base is provided with a control cubicle support for supporting the control cubicle, a breaker support for supporting the breaker, a first cable terminal support for supporting a first cable terminal, a second cable terminal support for supporting a second cable terminal, a third isolation grounding switch support for supporting a third isolation grounding switch, and a three-phase common box bus support for supporting a three-phase common box bus.
The control cubicle support, the breaker support, the first cable terminal support, the second cable terminal support, the third isolation grounding switch support and the three-phase common-box bus support are all connected with the base through bolts.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses box GIS structure is altogether to wind power tower cylinder three-phase, through the upper portion conductor electrical connection with first isolation earthing switch and second isolation earthing switch and circuit breaker, can increase the installation space that submarine cable inlet wire and submarine cable were qualified for the next round of competitions for submarine cable inlet wire and submarine cable can the direct mount in first isolation earthing switch and second isolation earthing switch's switch below, reduce because the crooked space that occupies of cable. Meanwhile, under the condition that the first isolation grounding switch and the second isolation grounding switch occupy the upper conductor of the circuit breaker, the third isolation grounding switch is arranged along the horizontal direction and connected to the three-phase common-box bus, and the electrically connected third cable terminal is arranged on the upper part of the three-phase common-box bus and led to the other side of the circuit breaker, the third cable terminal is connected upwards, the fan inlet wire enters from the upper part and enters the lower conductor of the circuit breaker through the third isolation grounding switch, and therefore the space occupied by bending of the cable is further reduced. The utility model discloses a compact structure, area is little, is convenient for arrange in fan tower section of thick bamboo.
Furthermore, the third cable terminal adopts a single-phase box-separating structure, the size of a single cable terminal is reduced as much as possible, and then three cable terminals are distributed along the length direction of the three-phase common-box bus, so that the purpose of reducing the width of the whole GIS is achieved.
Furthermore, through the design of base and support, guarantee GIS's stability, be convenient for install in different service environment.
Drawings
FIG. 1 is a schematic structural view of the three-phase box-shared GIS structure for the wind power tower of the present invention;
FIG. 2 is a schematic side view of the three-phase box-shared GIS structure for the wind power tower of the present invention;
FIG. 3 is a schematic view of the overhead structure of the three-phase box-shared GIS structure for the wind power tower of the present invention;
fig. 4 is the utility model discloses a box GIS structure electrical connection schematic diagram is altogether used to wind power tower cylinder three-phase.
Wherein: 1-a third cable termination; 2-a second current transformer; 3-three-phase common-box bus; 4-a third isolating grounding switch; 5-a circuit breaker; 6-a first isolating grounding switch; 7-a first arrester; 8-a first cable termination; 9-a second cable termination; 10-a second arrester; 11-a second isolating grounding switch; 12-a first current transformer; 13-a voltage transformer; 14-control cubicle.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1 to 4, in an embodiment of the present invention, a three-phase box-type GIS structure for wind power tower is provided, including a control cubicle 14, a circuit breaker 5, a first isolation grounding switch 6, a second isolation grounding switch 11, a third isolation grounding switch 4, a first current transformer 12, a second current transformer 2 and a voltage transformer 13.
The first isolation grounding switch 6 and the first current transformer 12 are electrically connected with an upper conductor of the breaker 5; one end of the first current transformer 12, which is far away from the circuit breaker 5, is electrically connected with the second isolating and grounding switch 11; the third position isolating grounding switch 4 is electrically connected with a lower conductor of the breaker 5; the first isolation grounding switch 6 and the second isolation grounding switch 11 are arranged along the vertical direction, and the third isolation grounding switch 4 is arranged along the horizontal direction; the third isolation grounding switch 4 is electrically connected with the three-phase common-box bus 3; the voltage transformer 13 is electrically connected with the three-phase common-box bus 3; a first cable terminal 8 electrically connected is arranged at the lower part of the first isolation grounding switch 6; the lower part of the second isolation grounding switch 11 is provided with a second cable terminal 9 which is electrically connected; the far end of the third isolation grounding switch 4 is connected with the three-phase common-box bus 3, and the upper part of the three-phase common-box bus 3 is provided with a third cable terminal 1 which is electrically connected; the first cable termination 8 and the second cable termination 9 are wired down and the third cable termination 1 is wired up.
Specifically, after the offshore wind turbine adopts a voltage class of 110kV, a GIS of 110kV is needed. And the GIS product parameters required by offshore wind power are smaller than those of the existing products, so that the use of an offshore wind driven generator can be met by improving the existing GIS products, and the aims of shortening the development period and reducing the development cost of the products are fulfilled by the method. Optionally, the first isolation earthing switch 6 and the second isolation earthing switch 11 are disposed on the left side and the right side of the conductor above the circuit breaker 5, one end of the third isolation earthing switch 4 is connected with one side of the conductor below the circuit breaker 5, and the other end extends to the rear side of the circuit breaker 5.
When the wind power generation device is used, the first cable terminal 8 is connected with a submarine cable inlet wire, the second cable terminal 9 is connected with a submarine cable outlet wire, and the third cable terminal 1 is connected with a fan inlet wire. The control cubicle 14 is used for controlling the circuit breaker 5, the first isolating and grounding switch 6, the second isolating and grounding switch 1, the third isolating and grounding switch 4, the first current transformer 12, the second current transformer 2 and the voltage transformer 13 through control signals.
The utility model discloses box GIS structure is altogether to wind power tower cylinder three-phase, through the upper portion conductor electrical connection with first isolation earthing switch 6 and second isolation earthing switch 11 and circuit breaker 5, can increase the installation space that submarine cable inlet wire and submarine cable were qualified for the next round of competitions and can the direct mount in first isolation earthing switch 6 and second isolation earthing switch 11's switch below by submarine cable inlet wire and submarine cable, reduce because the crooked space that occupies of cable. Meanwhile, under the condition that the upper conductors of the circuit breaker 5 are occupied by the first isolation grounding switch 6 and the second isolation grounding switch 11, the third isolation grounding switch 4 is arranged along the horizontal direction, the third isolation grounding switch 4 is provided with the electrically connected third cable terminal 1 through the upper part of the three-phase common box bus 3, the third cable terminal 1 is led to the other outer side of the circuit breaker 5, the third cable terminal 1 is connected upwards, the fan inlet wire enters from the upper part and enters the lower part of the circuit breaker 5 through the third isolation grounding switch 4, and the space occupied by the bent cable is further reduced. The utility model discloses a compact structure, area is little, is convenient for arrange in fan tower section of thick bamboo.
Preferably, in another embodiment of the present invention, the third cable terminal 1 includes three single-phase sub-cable terminals, the upper portion of each sub-cable terminal is open, and the three single-phase sub-cable terminals are arranged in a straight shape along the length direction of the three-phase common-box bus 3, so as to reduce the width of the entire GIS.
Preferably, in another embodiment of the present invention, a first lightning arrester 7 is disposed on the upper portion of the first isolation grounding switch 6; and a second lightning arrester 10 is arranged at the upper part of the second isolation grounding switch 11, so that the safety of the equipment is improved. The first lightning arrester 7 and the second lightning arrester 10 are connected with the control cubicle 14 through communication cables.
Preferably, in another embodiment of the present invention, the moving side of the third isolation grounding switch 4 is electrically connected to the lower conductor of the circuit breaker 5, and the stationary side of the third isolation grounding switch 4 is electrically connected to the third cable terminal 1 through the three-phase common-box bus 3.
Preferably, in another embodiment of the present invention, the first isolation grounding switch 6 and the second isolation grounding switch 11 are respectively located at two symmetrical sides of the circuit breaker 5, so as to further reduce the length of the entire GIS.
Preferably, the utility model discloses in still another embodiment, the base is included, set up the collection accuse cabinet support that is used for supporting collection accuse cabinet 14 on the base, a circuit breaker support for supporting circuit breaker 5, a first cable termination support for supporting first cable termination 8, a second cable termination support for supporting second cable termination 9, a third isolation earthing switch support for supporting third isolation earthing switch 4, and be used for supporting the three-phase and case bus bar support altogether of case bus bar 3, guarantee GIS's stability, be convenient for install in different service environment.
Preferably, in another embodiment of the present invention, the base is made of channel steel, which is low in cost, corrosion resistant and long in service life.
Preferably, in another embodiment of the present invention, the control cabinet support, the circuit breaker support, the first cable terminal support, the second cable terminal support, the third isolation grounding switch support and the three-phase bus bar support are all connected with the base bolt, so that the installation and the disassembly are convenient and fast, and the connection is stable.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. A three-phase box-shared GIS structure for a wind power tower is characterized by comprising a control cubicle (14), a circuit breaker (5), a first isolation grounding switch (6), a second isolation grounding switch (11), a third isolation grounding switch (4), a first current transformer (12), a second current transformer (2) and a voltage transformer (13), wherein the circuit breaker (5), the first isolation grounding switch, the second isolation grounding switch, the third isolation grounding switch and the voltage transformer are in communication connection with the control cubicle (14);
the first isolation grounding switch (6) and the first current transformer (12) are electrically connected with an upper conductor of the circuit breaker (5); one end of the first current transformer (12) far away from the circuit breaker (5) is electrically connected with the second isolation grounding switch (11); the third isolating grounding switch (4) is electrically connected with a lower conductor of the breaker (5); the first isolation grounding switch (6) and the second isolation grounding switch (11) are arranged along the vertical direction, and the third isolation grounding switch (4) is arranged along the horizontal direction;
a first cable terminal (8) which is electrically connected is arranged at the lower part of the first isolation grounding switch (6), and the first cable terminal (8) is connected downwards; a second cable terminal (9) which is electrically connected is arranged at the lower part of the second isolation grounding switch (11), and the second cable terminal (9) is connected downwards; a three-phase common box bus (3) which is electrically connected is arranged on one side, away from the circuit breaker, of the third isolation grounding switch (4), and the three-phase common box bus (3) is electrically connected with the second current transformer (2) and the voltage transformer (13); and a third cable terminal (1) which is electrically connected is arranged on the second current transformer (2), and the third cable terminal (1) is connected upwards.
2. The three-phase box-shared GIS structure for the wind power tower as claimed in claim 1, wherein the first lightning arrester (7) is electrically connected to the upper portion of the first isolation grounding switch (6), and the first lightning arrester (7) is in communication connection with the control cubicle (14).
3. The GIS structure with three-phase common box type for the wind power tower as claimed in claim 1, wherein the second lightning arrester (10) is electrically connected to the upper portion of the second isolation grounding switch (11), and the second lightning arrester (10) is in communication connection with the control cubicle (14).
4. The three-phase box-shared GIS structure for the wind power tower as claimed in claim 1, wherein the first isolation grounding switch (6), the second isolation grounding switch (11) and the third isolation grounding switch (4) are all three-position isolation grounding switches.
5. The three-phase box-shared GIS structure for the wind power tower according to claim 1, wherein the third cable terminal (1) comprises three sub-cable terminals in one-to-one correspondence with the a phase, the b phase and the c phase of the alternating current, the three sub-cable terminals are electrically connected with the second current transformer (2), and the three sub-cable terminals are arranged along the length direction of the three-phase box-shared bus (3).
6. The GIS structure as claimed in claim 1, wherein the third isolating and grounding switch (4) is electrically connected with the lower conductor of the circuit breaker (5) on the moving side, and the third isolating and grounding switch (4) is electrically connected with the third cable terminal (1) on the static side through the three-phase common box bus (3).
7. The three-phase box-shared GIS structure for the wind power tower as claimed in claim 1, wherein the first isolation grounding switch (6) and the second isolation grounding switch (11) are respectively located at two symmetrical sides of the circuit breaker (5).
8. The three-phase box-shared GIS structure for the wind power tower drum as claimed in claim 1, further comprising a base; the base is provided with a control cubicle support used for supporting a control cubicle (14), a circuit breaker support used for supporting a circuit breaker (5), a first cable terminal support used for supporting a first cable terminal (8), a second cable terminal support used for supporting a second cable terminal (9), a third isolation grounding switch support used for supporting a third isolation grounding switch (4), and a three-phase common box bus support used for supporting a three-phase common box bus (3).
9. The GIS structure with three-phase common box type for the wind power tower as claimed in claim 8, wherein the control cubicle support, the breaker support, the first cable terminal support, the second cable terminal support, the third isolation grounding switch support and the three-phase common box bus bar support are all connected with the base through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121568640.4U CN215071312U (en) | 2021-07-09 | 2021-07-09 | Three-phase box-shared GIS structure for wind power tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121568640.4U CN215071312U (en) | 2021-07-09 | 2021-07-09 | Three-phase box-shared GIS structure for wind power tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215071312U true CN215071312U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121568640.4U Active CN215071312U (en) | 2021-07-09 | 2021-07-09 | Three-phase box-shared GIS structure for wind power tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215071312U (en) |
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2021
- 2021-07-09 CN CN202121568640.4U patent/CN215071312U/en active Active
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