CN216215412U - Three-phase box-shared GIS device - Google Patents
Three-phase box-shared GIS device Download PDFInfo
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- CN216215412U CN216215412U CN202122388985.8U CN202122388985U CN216215412U CN 216215412 U CN216215412 U CN 216215412U CN 202122388985 U CN202122388985 U CN 202122388985U CN 216215412 U CN216215412 U CN 216215412U
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Abstract
The utility model discloses a three-phase box-shared GIS device, wherein a first isolation grounding switch, a second isolation grounding switch and a third isolation grounding switch are distributed at two sides of a breaker, the first isolation grounding switch and the second isolation grounding switch are positioned at the same side, one end of a conductor of the first isolation grounding switch is electrically connected with an upper conductor, a first basin-type insulator is arranged between the first isolation grounding switch and the breaker, the conductor of the first isolation grounding switch is also electrically connected with a first T-shaped cable joint, the conductor of the second isolation grounding switch is also connected with a lower first conductor, a second basin-type insulator is arranged between the second isolation grounding switch and the breaker, the conductor of the second isolation grounding switch is also connected with a second T-shaped cable joint, the conductor of the third isolation grounding switch is connected with a lower second conductor, and a third basin-type insulator is arranged between the third isolation grounding switch and the breaker, the third isolation grounding switch conductor is also connected with a third T-shaped cable joint. The utility model has simple disassembly and assembly and convenient maintenance.
Description
Technical Field
The utility model belongs to the technical field of power equipment, and particularly belongs to a three-phase box-shared GIS device.
Background
The offshore wind power is developed to a large-capacity unit, and with the increase of the capacity, a GIS product with a higher voltage level needs to be adopted. The existing arrangement mode of a high-voltage GIS (gas insulated switchgear) cannot meet the system wiring requirement of an offshore wind power tower.
A current collection circuit of the offshore wind turbine generator system is formed by connecting a plurality of fans in parallel and then sending the fans to an offshore booster station, and a circuit breaker of each fan is provided with 2 incoming lines and one outgoing line.
The existing GIS arrangement structure needs to adopt a mode of connecting three intervals in parallel to realize the functions, and has large volume and high manufacturing cost. Meanwhile, the three-phase box-shared GIS device adopting one air chamber is small in size, but the air chamber is not separated, so that the maintenance is difficult when a fault occurs.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a three-phase box-shared GIS device, which solves the problems of large volume, large installation area, high manufacturing cost and difficult maintenance of the conventional three-phase box-shared GIS device.
In order to achieve the purpose, the utility model provides the following technical scheme: a three-phase box-shared GIS device comprises a circuit breaker, a first isolation grounding switch, a second isolation grounding switch, a third isolation grounding switch and a fourth isolation grounding switch, wherein an upper conductor, a lower first conductor, a lower second conductor and a lower third conductor are arranged in the circuit breaker;
the first isolation grounding switch, the second isolation grounding switch, the third isolation grounding switch and the fourth isolation grounding switch are distributed at two sides of the circuit breaker, the first isolation grounding switch and the second isolation grounding switch are positioned at the same side, one end of a conductor of the first isolation grounding switch is electrically connected with an upper conductor, a first basin-type insulator is arranged between the first isolation grounding switch and the circuit breaker, the other end of the conductor of the first isolation grounding switch is electrically connected with a first T-shaped cable joint, the first T-shaped cable joint is used for connecting a fan cable, one end of a conductor of the second isolation grounding switch is electrically connected with a lower first conductor, a second basin-type insulator is arranged between the second isolation grounding switch and the circuit breaker, the other end of the conductor of the second isolation grounding switch is electrically connected with a second T-shaped cable joint, the third isolation grounding switch and the fourth isolation grounding switch are positioned at the other side of the circuit breaker, one end of a third isolation grounding switch conductor is electrically connected with a lower second conductor, a third basin-type insulator is arranged between the third isolation grounding switch and the breaker, the other end of the third isolation grounding switch conductor is electrically connected with a third T-shaped cable joint, a fourth basin-type insulator is arranged between the fourth isolation grounding switch and the breaker, the other end of the fourth isolation grounding switch conductor is electrically connected with a fourth T-shaped cable joint, and the second T-shaped cable joint, the third T-shaped cable joint and the fourth T-shaped cable joint are all used for connecting a submarine cable.
Furthermore, the axes of the electric connection surfaces of the first isolation grounding switch conductor and the first basin-type insulator and the axes of the electric connection surfaces of the first isolation grounding switch conductor and the first T-shaped cable joint are arranged at 90 degrees or 180 degrees.
Furthermore, the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint are arranged at 90 degrees or 180 degrees.
Furthermore, the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint are arranged at 90 degrees or 180 degrees.
Furthermore, the axes of the electrical connection surfaces of the fourth T-shaped cable joint and the fourth isolation grounding switch conductor and the axes of the electrical connection surfaces of the fourth isolation grounding switch conductor and the fourth basin-type insulator are arranged at an angle of 180 degrees.
Furthermore, an input conductor of the first T-shaped cable joint is connected with a fan cable, a first current transformer is arranged on the fan cable, an input conductor of the second T-shaped cable joint, an output conductor of the third T-shaped cable joint and an output conductor of the fourth T-shaped cable joint are connected with the submarine cable, and the submarine cable of the second T-shaped cable joint, the submarine cable of the third T-shaped cable joint and the submarine cable of the fourth T-shaped cable joint are respectively provided with a second current transformer, a third current transformer and a fourth current transformer;
the input end of the first T-shaped cable joint and the input end of the second T-shaped cable joint point to opposite directions in the vertical direction, and the input end of the second T-shaped cable joint, the output end of the third T-shaped cable joint and the output end of the fourth T-shaped cable joint point to the same direction.
Furthermore, one side of the second T-shaped cable joint, which is far away from the second isolating and grounding switch, is electrically connected with a first T-shaped lightning arrester;
one side of the third T-shaped cable joint, which is far away from the third isolating and grounding switch, is electrically connected with a second T-shaped lightning arrester;
and one side of the fourth T-shaped cable joint, which is far away from the fourth isolating and grounding switch, is electrically connected with a third T-shaped lightning arrester.
Furthermore, the first T-shaped cable joint and the first isolation grounding switch, the second T-shaped cable joint and the second isolation grounding switch, the third T-shaped cable joint and the third isolation grounding switch, and the fourth T-shaped cable joint and the fourth isolation grounding switch are electrically connected through the auxiliary air chamber.
Furthermore, the first T-shaped cable joint is connected with the first isolation grounding switch, the second T-shaped cable joint is connected with the second isolation grounding switch, the third T-shaped cable joint is connected with the third isolation grounding switch, and the fourth T-shaped cable joint is connected with the fourth isolation grounding switch in a plug-in mode.
Furthermore, the shell of the circuit breaker is connected with the shell of the first isolating grounding switch, the shell of the circuit breaker is connected with the shell of the second isolating grounding switch, and the shell of the circuit breaker is connected with the shell of the third isolating grounding switch and the shell of the fourth isolating grounding switch through bolts; the first isolation grounding switch is positioned at the top of the second isolation grounding switch.
Compared with the prior art, the utility model has at least the following beneficial effects:
the utility model provides a three-phase box-shared GIS device, which is directly and electrically connected with a conductor of a breaker through an isolation grounding switch conductor, reduces the overall length of a GIS, can reduce the overall area of the GIS device, reduces the manufacturing cost of the GIS and saves the cost, and meanwhile, a second isolation grounding switch and a third isolation grounding switch are respectively arranged at two sides of the breaker and are electrically connected with a lower conductor of the breaker, so that the requirements of an electrical system can be met; meanwhile, the electrical connection conductors of the second T-shaped cable joint device and the second isolation grounding switch and the electrical connection conductors of the third T-shaped cable joint device and the third isolation grounding switch are all set to be horizontal and can reduce the height of the GIS, the occupied area of the GIS device is reduced, the structure is compact, the occupied area is small, the GIS device is convenient to arrange in a fan tower, moreover, the basin-shaped insulator separates the air chambers of the breaker and the isolation grounding switch, the whole GIS device is divided into four air chambers, each air chamber is independent, the assembly and disassembly are simple, and the maintenance is convenient.
Furthermore, the electrical connection surface of the first isolation grounding switch conductor and the first T-shaped cable joint, the electrical connection surface of the second isolation grounding switch conductor and the second T-shaped cable joint, and the electrical connection surface of the third isolation grounding switch conductor and the third T-shaped cable joint have multiple combination modes, so that the installation space is saved, the requirements of multiple working environments can be met, and the application range is wider.
Furthermore, current transformers are arranged on the outer sides of the first T-shaped cable joint, the second T-shaped cable joint and the third T-shaped cable joint, and currents on the T-shaped cable joints can be measured conveniently.
Furthermore, the second T-shaped cable joint and the third T-shaped cable joint are both connected with T-shaped lightning arresters, the configuration of a wind power system is met, and the safety of equipment is improved.
Furthermore, the T-shaped cable joint and the isolation grounding switch are connected in a plugging mode, so that the wiring length is reduced, the occupied space is reduced, and the connection and the disassembly are convenient.
Furthermore, the circuit breaker is arranged on the bottom frame, the stability of the GIS is guaranteed, and the circuit breaker can be conveniently installed in different use environments.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic electrical connection of the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of the present invention;
FIG. 6 is a schematic top view of the structure of FIG. 5;
FIG. 7 is a schematic structural diagram of an embodiment of the present invention;
FIG. 8 is a schematic top view of the structure of FIG. 7;
FIG. 9 is a schematic structural diagram of an embodiment of the present invention;
FIG. 10 is a schematic top view of the structure of FIG. 9;
FIG. 11 is a schematic structural diagram of an embodiment of the present invention;
FIG. 12 is a schematic top view of the structure of FIG. 11;
FIG. 13 is a schematic structural diagram of an embodiment of the present invention;
FIG. 14 is a schematic top view of the structure of FIG. 13;
FIG. 15 is a schematic structural diagram of an embodiment of the present invention;
FIG. 16 is a schematic top view of the structure of FIG. 15;
FIG. 17 is a schematic structural diagram of an embodiment of the present invention;
FIG. 18 is a schematic top view of the structure of FIG. 17;
FIG. 19 is a schematic structural diagram of an embodiment of the present invention;
FIG. 20 is a schematic top view of the structure of FIG. 19;
FIG. 21 is a schematic structural diagram of an embodiment of the present invention;
FIG. 22 is a schematic top view of the structure of FIG. 21;
FIG. 23 is a schematic electrical connection diagram of another embodiment of the present invention;
FIG. 24 is a schematic structural diagram of another embodiment of the present invention;
FIG. 25 is a schematic top view of the structure of FIG. 24;
in the drawings: 1-a first current transformer, 2-a first T-shaped cable joint, 3-a first isolating and grounding switch, 4-a first basin insulator, 5-a circuit breaker, 6-a second basin insulator, 7-a second isolating and grounding switch, 8-a second T-shaped cable joint, 9-a first T-shaped lightning arrester, 10-a second current transformer, 11-a third current transformer, 12-a second T-shaped lightning arrester, 13-a third T-shaped cable joint, 14-a third isolating and grounding switch, 15-a third basin insulator, 16-a junction cabinet, 17-an underframe, 18-a fourth isolating and grounding switch, 19-a fourth basin insulator, 20-a fourth T-shaped cable joint, 21-a fourth current transformer and 22-a third T-shaped lightning arrester.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
The utility model provides a three-phase box-shared GIS device which comprises a circuit breaker 5, a first isolation grounding switch 3, a second isolation grounding switch 7, a third isolation grounding switch 14, a first T-shaped cable joint 2, a second T-shaped cable joint 8, a third T-shaped cable joint 13, a first T-shaped lightning arrester 9, a second T-shaped lightning arrester 12, a control cubicle 16 and other elements.
Specifically, the control cubicle 16 and the circuit breaker 5 are mounted on the same chassis 17, the control cubicle 16 and the circuit breaker 5, the first isolation grounding switch 3, the second isolation grounding switch 7 and the third isolation grounding switch 14 are in communication connection, the control cubicle 16 is used for controlling the circuit breaker 5, the first isolation grounding switch 3, the second isolation grounding switch 7 and the third isolation grounding switch 14 through control signals, preferably, a plurality of supports are arranged on the chassis 17, and the first isolation grounding switch 3, the second isolation grounding switch 7 and the third isolation grounding switch 14 can be respectively supported through the supports.
The first disconnecting and grounding switch 3 is positioned above one side of the circuit breaker 5, and a metal shell of the first disconnecting and grounding switch is connected with the metal shell of the circuit breaker 5 through a bolt. The first isolating and grounding switch 3 and the breaker 5 are separated into 2 different air chambers by a first basin-type insulator 4. One end of a first isolation grounding switch conductor is directly and electrically connected with an upper conductor of the breaker 5, so that the wire inlet length of the fan cable can be reduced, and the other end of the first isolation grounding switch conductor is electrically connected with the first T-shaped cable connector 2;
in this embodiment, the first T-shaped cable joint 2 is used for connecting a fan cable, the electrical connection portion of the first T-shaped cable joint 2 and the first isolation grounding switch 3 is arranged along the horizontal direction, the electrical connection portion of the first T-shaped cable joint 2 and the fan cable is arranged along the vertical direction, and the first T-shaped cable joint 2 is connected with the fan cable upwards. A first current transformer 1 is mounted above a first T-shaped cable connector 2. Wherein the first T-shaped cable connector 2 and the first isolation grounding switch 3 are electrically connected through a conductor in the auxiliary air chamber.
The second disconnecting and grounding switch 7 is positioned below one side of the breaker 5, and the second disconnecting and grounding switch 7 and the first disconnecting and grounding switch 3 are positioned on the same side of the breaker 5. The metal housing of the second disconnecting and grounding switch 7 is connected with the metal housing of the circuit breaker 5 through bolts. The second isolation grounding switch 7 and the breaker 5 are separated into 2 different air chambers by a second basin-type insulator 6. One end of the second isolation grounding switch conductor is electrically connected with the second conductor on the lower portion of the circuit breaker 5, the incoming line length of the submarine cable can be reduced, and the other end of the second isolation grounding switch 7 conductor is electrically connected with the second T-shaped cable connector 8.
In the present embodiment, the second T-shaped cable joint 8 is used for connecting the submarine cable, the second T-shaped cable joint 8 and the electrical connection part of the second isolation grounding switch 7 are axially arranged along the horizontal direction, the second T-shaped cable joint 8 and the electrical connection part of the submarine cable are axially arranged along the vertical direction, and the second T-shaped cable joint 8 is downwards connected with the submarine cable. The second current transformer 1 is mounted below the second T-cable junction 8. Wherein the second T-shaped cable connector 8 and the second isolating and grounding switch 7 are electrically connected through a conductor in the auxiliary air chamber.
The third disconnecting and grounding switch 14 is installed on the other side of the circuit breaker 5, and the metal shell of the third disconnecting and grounding switch is connected with the metal shell of the circuit breaker 5 through a bolt. And 2 different air chambers are separated between the third isolating and grounding switch 14 and the breaker 5 by a third basin-type insulator 15. One end of a conductor of the third isolating and grounding switch 14 is electrically connected with a second conductor at the lower part of the breaker 5, so that the incoming line length of the submarine cable can be reduced, and the other end of the conductor of the third isolating and grounding switch 14 is electrically connected with the third T-shaped cable joint 13.
In this embodiment, the third T-shaped cable connector 13 is used for connecting the submarine cable, the electrical connection part of the third T-shaped cable connector 13 and the third isolation grounding switch 14 is axially arranged along the horizontal direction, the electrical connection part of the third T-shaped cable connector 13 and the submarine cable is axially arranged along the vertical direction, and the third T-shaped cable connector 13 is connected with the submarine cable downwards. The third current transformer 1 is mounted below the third T-cable junction 13. Wherein the third T-shaped cable connector 13 and the third isolating and grounding switch 14 are electrically connected through a conductor in the auxiliary air chamber.
In this embodiment, the upper conductors of the first disconnecting and grounding switch 3 and the breaker 5 are directly connected to the conductors in the first basin insulator 4, the lower first conductors of the second disconnecting and grounding switch 7 and the breaker 5 are directly connected to the conductors in the second basin insulator 6, and the lower second conductors of the third disconnecting and grounding switch 14 and the breaker 5 are directly connected to the conductors in the third basin insulator 15.
In the present embodiment, a first T-shaped lightning arrester 9 is electrically connected to a side of the second T-shaped cable joint 8 away from the second isolation grounding switch 7, and a second T-shaped lightning arrester 12 is electrically connected to a side of the third T-shaped cable joint 13 away from the third isolation grounding switch 14. Specifically, the first T-shaped lightning arrester 9 and the second T-shaped cable joint 8, the second T-shaped lightning arrester 12 and the third T-shaped cable joint 13, the first T-shaped cable joint 2 and the first isolating and grounding switch 3, the second T-shaped cable joint 8 and the second isolating and grounding switch 7, and the third T-shaped cable joint 13 and the third isolating and grounding switch 14 are connected in a plug-in manner.
Specifically, the axes of the electrical connection surfaces of the conductor of the first isolation grounding switch 3 and the first basin-type insulator 4 and the axes of the electrical connection surfaces of the conductor of the first isolation grounding switch and the first T-shaped cable joint 2 are arranged at 90 degrees or 180 degrees.
The axes of the electrical connection surfaces of the second isolation earthing switch conductor and the second basin-type insulator 4 and the axes of the electrical connection surfaces of the second isolation earthing switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees or 180 degrees.
The axes of the electrical connection surfaces of the third isolation earthing switch conductor and the third basin insulator 15 and the axes of the electrical connection surfaces of the third isolation earthing switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees or 180 degrees.
In the present embodiment, as shown in fig. 1, 2, 3 and 4, the first T-shaped cable connector 2 is electrically connected to the first disconnecting ground switch 3 on the side away from the circuit breaker 5; the second T-shaped cable joint 8 is electrically connected to the side, far away from the circuit breaker 5, of the second isolation grounding switch 7; the third T-shaped cable joint 13 is electrically connected to the side of the third isolation grounding switch 14 far away from the circuit breaker 5; the axes of the electrical connection surfaces of the first isolation grounding switch conductor and the first basin-type insulator 4 and the axes of the electrical connection surfaces of the first isolation grounding switch conductor and the first T-shaped cable connector 2 are arranged in 180 degrees; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged in 180 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged in 180 degrees; wherein the third isolated grounding switch 14 is located at the bottom of the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 5 and 6, the electrical connection surface axes of the first isolation earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first isolation earthing switch conductor and the first T-type cable joint 2 are arranged at 90 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees; the static end electrical connection surface of the first isolation grounding switch 3, the static end electrical connection surface of the second isolation grounding switch 7 and the static end electrical connection surface of the third isolation grounding switch 14 point to the same direction; wherein, the third isolation grounding switch 14 is located at the bottom of the control cubicle.
In another embodiment of the present invention, as shown in fig. 7 and 8, the electrical connection surface axes of the first isolation earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first isolation earthing switch conductor and the first T-type cable joint 2 are arranged at 90 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged in 180 degrees; the third isolation grounding switch 14 is positioned below the control cubicle 16; the static end electrical connection surface of the first isolation grounding switch 3 and the static end electrical connection surface of the second isolation grounding switch 7 point to the same direction.
In another embodiment of the present invention, as shown in fig. 9 and 10, the electrical connection surface axes of the first isolation earthing switch 3 conductor and the first basin insulator 4 and the electrical connection surface axes of the first isolation earthing switch conductor and the first T-type cable joint 2 are arranged at 180 °; the axes of the second isolation grounding switch conductor and the electrical connection surface of the second basin-type insulator 4 and the axes of the second isolation grounding switch conductor and the electrical connection surface of the second T-shaped cable joint 8 are arranged in 180 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees, and the third isolation grounding switch 14 is positioned below the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 11 and 12, the electrical connection surface axes of the first disconnecting earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first disconnecting earthing switch conductor and the first T-type cable joint 2 are arranged at 90 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees; the static end electrical connection surface of the first isolation grounding switch 3 and the static end electrical connection surface of the second isolation grounding switch 7 point to the same direction, and the static end electrical connection surface of the third isolation grounding switch 14 and the static end electrical connection surface of the first isolation grounding switch 3 point to opposite directions respectively; wherein the third isolated grounding switch 14 is located at the bottom of the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 13 and 14, the electrical connection surface axes of the first disconnecting earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first disconnecting earthing switch conductor and the first T-type cable joint 2 are arranged at 90 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees; the static end electrical connection surface of the first isolation grounding switch 3 and the static end electrical connection surface of the second isolation grounding switch 7 point to opposite directions, and the static end electrical connection surface of the third isolation grounding switch 14 and the static end electrical connection surface of the first isolation grounding switch 3 point to the same direction; wherein the third isolated grounding switch 14 is located at the bottom of the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 15 and 16, the electrical connection surface axes of the first disconnecting earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first disconnecting earthing switch conductor and the first T-type cable joint 2 are arranged at 90 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees; the static end electrical connection surface of the first isolation grounding switch 3, the static end electrical connection surface of the second isolation grounding switch 7 and the static end electrical connection surface of the third isolation grounding switch 14 point to the same direction; wherein the third isolated grounding switch 14 is located at the top of the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 17 and 18, the electrical connection surface axes of the first disconnecting earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first disconnecting earthing switch conductor and the first T-type cable joint 2 are arranged at 180 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged in 180 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees, and the third isolation grounding switch 14 is positioned above the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 19 and 20, the electrical connection surface axes of the first disconnecting earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first disconnecting earthing switch conductor and the first T-type cable joint 2 are arranged at 180 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged in 180 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged in 180 degrees; wherein the third isolated grounding switch 14 is located at the top of the control cubicle 16.
In another embodiment of the present invention, as shown in fig. 21 and 22, the electrical connection surface axes of the first disconnecting earthing switch conductor and the first basin insulator 4 and the electrical connection surface axes of the first disconnecting earthing switch conductor and the first T-type cable joint 2 are arranged at 90 °; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are 180 degrees; the third isolation grounding switch 14 is positioned above the control cubicle 16; the static end electrical connection surface of the first isolation grounding switch 3 and the static end electrical connection surface of the second isolation grounding switch 7 point to the same direction.
In another embodiment of the present invention, as shown in fig. 23, 24 and 25, a fourth isolation grounding switch 18 is further included, the control cubicle is directly disposed on the chassis, the fourth isolation grounding switch 18 is located above the third isolation grounding switch 14, wherein a lower third conductor is disposed in the circuit breaker, the lower third conductor is electrically connected to the fourth isolation grounding switch 18, the fourth isolation grounding switch 18 and the third isolation grounding switch 14 are located on the same side of the circuit breaker, wherein a fourth isolation grounding switch conductor is disposed in an inner cavity of the fourth isolation grounding switch 18, a fourth basin-type insulator 19 is disposed between the fourth isolation grounding switch 18 and the circuit breaker 5, the other end of the fourth isolation grounding switch conductor is electrically connected to the fourth T-type cable connector 20 through an auxiliary air chamber, and the fourth T-type cable connector 20 is also used for connecting a submarine cable;
in this embodiment, a fourth current transformer 21 is disposed on the submarine cable of the fourth T-shaped cable connector 20, and a third T-shaped lightning arrester 22 is electrically connected to a side of the fourth T-shaped cable connector 20 away from the fourth isolated grounding switch 18.
In the embodiment, the axes of the electrical connection surfaces of the first isolation grounding switch conductor and the first basin-type insulator 4 and the axes of the electrical connection surfaces of the first isolation grounding switch conductor and the first T-shaped cable joint 2 are arranged at 90 degrees; the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second basin-type insulator 6 and the axes of the electrical connection surfaces of the second isolation grounding switch conductor and the second T-shaped cable joint 8 are arranged at 90 degrees; the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third basin-type insulator 15 and the axes of the electrical connection surfaces of the third isolation grounding switch conductor and the third T-shaped cable joint 13 are arranged at 90 degrees, and the axes of the electrical connection surfaces of the fourth T-shaped cable joint (20) and the fourth isolation grounding switch conductor and the axes of the electrical connection surfaces of the fourth isolation grounding switch conductor and the fourth basin-type insulator (19) are arranged at 180 degrees;
specifically, when the fourth isolation grounding switch is arranged on the circuit breaker, the conversion scheme of the installation modes of the first isolation grounding switch, the second isolation grounding switch and the third isolation grounding switch is consistent with the embodiment.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A three-phase box-shared GIS device is characterized by comprising a circuit breaker (5), a first isolation grounding switch (3), a second isolation grounding switch (7), a third isolation grounding switch (14) and a fourth isolation grounding switch (18), wherein an upper conductor, a lower first conductor, a lower second conductor and a lower third conductor are arranged in the circuit breaker (5), and inner cavities of the first isolation grounding switch (3), the second isolation grounding switch (7), the third isolation grounding switch (14) and the fourth isolation grounding switch (18) are respectively provided with a first isolation grounding switch conductor, a second isolation grounding switch conductor, a third isolation grounding switch conductor and a fourth isolation grounding switch conductor;
the first isolation grounding switch (3), the second isolation grounding switch (7), the third isolation grounding switch (14) and the fourth isolation grounding switch (18) are distributed on two sides of the circuit breaker (5), the first isolation grounding switch (3) and the second isolation grounding switch (7) are positioned on the same side, one end of a first isolation grounding switch conductor is electrically connected with an upper conductor, a first basin-type insulator (4) is arranged between the first isolation grounding switch (3) and the circuit breaker (5), the other end of the first isolation grounding switch conductor is electrically connected with a first T-type cable connector (2), the first T-type cable connector (2) is used for connecting a fan cable, one end of a second isolation grounding switch conductor is electrically connected with a lower first conductor, a second basin-type insulator (6) is arranged between the second isolation grounding switch (7) and the circuit breaker (5), and the other end of the second isolation grounding switch conductor is electrically connected with a second T-type cable connector (8), the third isolation grounding switch (14) and the fourth isolation grounding switch (18) are located on the other side of the breaker (5), one end of a conductor of the third isolation grounding switch is electrically connected with a second conductor on the lower portion, a third basin-type insulator (15) is arranged between the third isolation grounding switch (14) and the breaker (5), the other end of the conductor of the third isolation grounding switch is electrically connected with a third T-shaped cable joint (13), a fourth basin-type insulator (19) is arranged between the fourth isolation grounding switch (18) and the breaker (5), the other end of the conductor of the fourth isolation grounding switch is electrically connected with a fourth T-shaped cable joint (20), and the second T-shaped cable joint (8), the third T-shaped cable joint (13) and the fourth T-shaped cable joint (20) are all used for connecting a submarine cable.
2. A three-phase box-shared GIS device according to claim 1, characterized in that the axes of the electrical connection surfaces of the first isolating earthing switch conductor and the first basin insulator (4) and the axes of the electrical connection surfaces of the first isolating earthing switch conductor and the first T-shaped cable joint (2) are arranged at 90 ° or 180 °.
3. A three-phase box-shared GIS device according to claim 1, characterized in that the axes of the electrical connection surfaces of the second isolating earthing switch conductor and the second basin insulator (6) and the axes of the electrical connection surfaces of the second isolating earthing switch conductor and the second T-shaped cable joint (8) are arranged at 90 ° or 180 °.
4. A three-phase box-shared GIS device according to claim 1, characterized in that the axes of the electrical connection surfaces of the third isolated earthing switch conductor and the third basin insulator (15) and the axes of the electrical connection surfaces of the third isolated earthing switch conductor and the third T-shaped cable joint (13) are arranged at 90 ° or 180 °.
5. A three-phase box-shared GIS device according to claim 1, characterized in that the electrical connection surface axes of the fourth T-shaped cable connector (20) and the fourth isolated earthing switch conductor are arranged at 180 ° to the electrical connection surface axes of the fourth isolated earthing switch conductor and the fourth basin insulator (19).
6. The GIS device as claimed in claim 1, wherein the input conductor of the first T-shaped cable joint (2) is connected with a fan cable, a first current transformer (1) is arranged on the fan cable, the input conductor of the second T-shaped cable joint (8), the output conductor of the third T-shaped cable joint (13) and the output conductor of the fourth T-shaped cable joint (20) are connected with a submarine cable, and the submarine cable of the second T-shaped cable joint (8), the submarine cable of the third T-shaped cable joint (13) and the submarine cable of the fourth T-shaped cable joint (20) are respectively provided with a second current transformer (10), a third current transformer (11) and a fourth current transformer (21);
the input end of the first T-shaped cable joint (2) and the input end of the second T-shaped cable joint (8) point to opposite directions in the vertical direction, and the input end of the second T-shaped cable joint (8), the output end of the third T-shaped cable joint (13) and the output end of the fourth T-shaped cable joint (20) point to the same direction.
7. A three-phase box-shared GIS device according to claim 1, wherein the second T-shaped cable connector (8) is electrically connected with a first T-shaped lightning arrester (9) at the side far away from the second isolating and grounding switch (7);
one side of the third T-shaped cable joint (13) far away from the third isolating grounding switch (14) is electrically connected with a second T-shaped lightning arrester (12);
and a third T-shaped lightning arrester (22) is electrically connected to one side of the fourth T-shaped cable joint (20) far away from the fourth isolating grounding switch (18).
8. A three-phase box-shared GIS device according to claim 1, wherein the first T-cable connector (2) and the first isolation grounding switch (3), the second T-cable connector (8) and the second isolation grounding switch (7), the third T-cable connector (13) and the third isolation grounding switch (14) and the fourth T-cable connector (20) and the fourth isolation grounding switch (18) are electrically connected through the auxiliary air chamber.
9. The GIS device as claimed in claim 1, wherein the first T-shaped cable connector (2) and the first isolation grounding switch (3), the second T-shaped cable connector (8) and the second isolation grounding switch (7), the third T-shaped cable connector (13) and the third isolation grounding switch (14) and the fourth T-shaped cable connector (20) and the fourth isolation grounding switch (18) are connected in a plug-in manner.
10. A three-phase box-shared GIS device according to claim 1, characterized in that the housing of the circuit breaker (5) and the housing of the first isolating grounding switch (3), the housing of the circuit breaker and the housing of the second isolating grounding switch, and the housing of the circuit breaker, the third isolating grounding switch (14) and the fourth isolating grounding switch (18) are all connected by bolts; the first isolation grounding switch (3) is positioned at the top of the second isolation grounding switch (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388985.8U CN216215412U (en) | 2021-09-29 | 2021-09-29 | Three-phase box-shared GIS device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122388985.8U CN216215412U (en) | 2021-09-29 | 2021-09-29 | Three-phase box-shared GIS device |
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| Publication Number | Publication Date |
|---|---|
| CN216215412U true CN216215412U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122388985.8U Active CN216215412U (en) | 2021-09-29 | 2021-09-29 | Three-phase box-shared GIS device |
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| CN (1) | CN216215412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098876A1 (en) * | 2022-11-08 | 2024-05-16 | 西安西电开关电气有限公司 | Integrated switchgear |
-
2021
- 2021-09-29 CN CN202122388985.8U patent/CN216215412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098876A1 (en) * | 2022-11-08 | 2024-05-16 | 西安西电开关电气有限公司 | Integrated switchgear |
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