CN112383019B - GIS and cable terminal connecting device for GIS - Google Patents

GIS and cable terminal connecting device for GIS Download PDF

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Publication number
CN112383019B
CN112383019B CN202011406685.1A CN202011406685A CN112383019B CN 112383019 B CN112383019 B CN 112383019B CN 202011406685 A CN202011406685 A CN 202011406685A CN 112383019 B CN112383019 B CN 112383019B
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CN
China
Prior art keywords
contact
contact seat
insulator
cylinder
gis
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Active
Application number
CN202011406685.1A
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Chinese (zh)
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CN112383019A (en
Inventor
闫亚刚
李忠富
孙鹏
王大伟
陈富国
赵献臣
杨卫国
蔡杰
李中旗
刘璐
黄坤鹏
刘亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Henan Pinggao Electric Co Ltd
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Application filed by State Grid Corp of China SGCC, Pinggao Group Co Ltd, Henan Pinggao Electric Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202011406685.1A priority Critical patent/CN112383019B/en
Publication of CN112383019A publication Critical patent/CN112383019A/en
Application granted granted Critical
Publication of CN112383019B publication Critical patent/CN112383019B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0358—Connections to in or out conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures
    • H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
    • H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Cable Accessories (AREA)

Abstract

The invention relates to a GIS and a cable terminal connecting device for the GIS. Cable terminal connecting device for GIS includes: the cable terminal is arranged in the barrel body, the cable terminal is electrically connected with a first contact seat, and the barrel body is provided with a first barrel opening and a second barrel opening; the end cap is arranged at the second nozzle and used for plugging the second nozzle; the first insulator is fixedly arranged at the first opening, and a second contact seat is fixedly arranged on the inner side of the insert on the first insulator; the second insulator is positioned between the second barrel opening and the end cap, a third contact seat is fixedly arranged on the inner side of an insert on the second insulator, a first fracture is formed between the third contact seat and the first contact seat, and a second fracture is formed between the third contact seat and the second contact seat; the first moving contact is assembled on the first contact seat or the third contact seat in a sliding mode so as to realize the connection and disconnection of the first contact seat and the third contact seat; and the second moving contact is assembled on the second contact seat or the third contact seat in a sliding manner so as to realize the connection and disconnection of the second contact seat and the third contact seat.

Description

GIS and cable terminal connecting device for GIS
Technical Field
The invention relates to a GIS and a cable terminal connecting device for the GIS.
Background
The GIS cable terminal connecting device is a necessary device for connecting a power cable and a GIS body, and because the field withstand voltage test parameters of the GIS body and the power cable are inconsistent, the GIS body and the power cable need to be subjected to independent withstand voltage tests respectively.
At present, a cable terminal connection device for a GIS includes a barrel, a cable terminal 11 is disposed in the barrel, a power cable is connected to a lower end of the cable terminal 11, a cable terminal contact is fixedly disposed at an upper end of the cable terminal 11, and the cable terminal contact is electrically connected to a GIS body through a first connection conductor 12 and a second connection conductor 13. When a withstand voltage test is performed on the power cable, as shown in fig. 2, the second connecting conductor 13 needs to be removed, and the withstand voltage bushing 14 is electrically connected to the first connecting conductor 12 through the relatively long conductive rod 15 to perform the withstand voltage test on the cable terminal 11 alone; when a withstand voltage test is performed on the GIS body, as shown in fig. 3, the first connecting conductor 12 needs to be removed so that the withstand voltage bushing 14 is connected to the second connecting conductor 13 through the relatively short conductive rod 15 to perform the withstand voltage test on the GIS body alone.
In the pressure-resistant test process, the first connecting conductor and the second connecting conductor need to be repeatedly disassembled and assembled and the conducting rods with different lengths need to be replaced, so that the installation quality cannot be guaranteed, and the labor intensity is increased. In addition, in the process of disassembling and assembling the two connecting conductors, SF6 gas needs to be repeatedly filled and discharged into the cylinder, the purity requirement of the SF6 gas in a pressure resistance test is high, the recovered SF6 gas cannot be reused, large waste is caused, and air pollution caused by leakage in the process of filling and discharging the SF6 gas is serious.
Disclosure of Invention
The invention aims to provide a cable terminal connecting device for a GIS (geographic information system), which aims to solve the technical problem that SF6 gas needs to be repeatedly charged and discharged into a cylinder body when a GIS body and a power cable are subjected to a pressure resistance test respectively in the prior art, so that SF6 gas is wasted; the invention also aims to provide the GIS.
In order to achieve the purpose, the technical scheme of the cable terminal connecting device for the GIS is as follows:
cable terminal connecting device for GIS includes:
the cable terminal is arranged in the cylinder body, the cable terminal is electrically connected with the first contact seat, the cylinder body is provided with a first cylinder opening and a second cylinder opening, the first cylinder opening is used for being in butt joint with the GIS body, and the second cylinder opening faces upwards and is used for being in butt joint with the pressure-resistant sleeve;
the end cap is arranged at the second nozzle and used for plugging the second nozzle and removing the end cap during a pressure test;
the first insulator is fixedly arranged at the first opening, and a second contact seat is fixedly arranged on the inner side of the insert on the first insulator and is used for being in conductive connection with the GIS body;
the second insulator is positioned between the second barrel opening and the end cap, a third contact seat is fixedly arranged on the inner side of an insert on the second insulator, a first fracture is formed between the third contact seat and the first contact seat, and a second fracture is formed between the third contact seat and the second contact seat;
the first moving contact is assembled on the first contact seat or the third contact seat in a sliding mode so as to realize the connection and disconnection of the first contact seat and the third contact seat;
and the second moving contact is assembled on the second contact seat or the third contact seat in a sliding manner so as to realize the connection and disconnection of the second contact seat and the third contact seat.
The beneficial effects are that: when the cable terminal connecting device for the GIS in the embodiment is used for carrying out a withstand voltage test on the GIS body and a power cable, the barrel does not need to be repeatedly charged and discharged with insulating gas, so that the waste of SF6 gas and the pollution to the atmosphere are avoided; in addition, not only does not need to repeatedly disassemble and assemble the connecting conductor in the cylinder body, but also does not need to replace the conducting rod in the pressure-resistant sleeve, thereby reducing the labor intensity and improving the working efficiency and the product reliability.
Furthermore, the first moving contact is assembled on the third contact seat in a sliding mode, a first transmission rod is arranged on the vertical portion of the barrel, a gear rack mechanism is arranged between the first transmission rod and the first moving contact, and the first transmission rod is driven by a driving device to rotate so as to drive the first moving contact to move on the third contact seat directly.
The beneficial effects are that: compare in setting up first moving contact on first contact seat, can reduce the space of first contact seat and occupy to make cable terminal connecting device for GIS's structure comparatively compact.
Furthermore, the second moving contact is assembled on a second contact seat in a sliding mode, a second transmission rod is arranged on the horizontal portion of the barrel, a gear rack mechanism is arranged between the second transmission rod and the second moving contact, and the second transmission rod is driven by a driving device to rotate so as to drive the second moving contact to move on the second contact seat directly.
The beneficial effects are that: compare in setting up the second moving contact on the third contact seat, can reduce the weight of third contact seat to guarantee the stability of third contact seat.
Furthermore, be equipped with a transition section of thick bamboo between second nozzle and the end cap, the edge of second insulator sets firmly between second nozzle and a transition section of thick bamboo, and the end cap sets firmly the one end of keeping away from the second nozzle at a transition section of thick bamboo to shutoff second nozzle.
The beneficial effects are that: therefore, when the pressure resistance test is carried out, the transition cylinder does not need to be installed, and only the end cap needs to be detached, so that the installation procedures are reduced, and the test efficiency is improved.
Furthermore, the second insulator is a basin-type insulator, the convex part of the second insulator faces the outside of the barrel, the outer side of the insert of the second insulator is fixedly provided with a static contact, the static contact is provided with a shielding cover, and the shielding cover is detached during a voltage withstand test.
The beneficial effects are that: the convex part of the second insulator faces the outside of the cylinder body, so that the space in the cylinder body is prevented from being occupied, the static contact is fixed on the second insulator, and the static contact does not need to be installed during a voltage withstand test, so that the installation procedures are reduced, and the test efficiency is improved; and the shielding cover can be used for homogenizing the electric field at the static contact position, so that the discharge phenomenon is avoided.
In order to realize the purpose, the technical scheme of the GIS is as follows:
GIS, including GIS body and cable termination connecting device, cable termination connecting device includes:
the cable terminal is arranged in the barrel body, the first contact seat is electrically connected to the cable terminal, the barrel body is provided with a first barrel opening and a second barrel opening, the first barrel opening is used for being in butt joint with the GIS body, and the second barrel opening faces upwards and is used for being in butt joint with the pressure-resistant sleeve;
the end cap is arranged at the second cylinder opening and used for plugging the second cylinder opening and removing the end cap during a pressure test;
the first insulator is fixedly arranged at the first opening, and a second contact seat is fixedly arranged on the inner side of the insert on the first insulator and is used for being in conductive connection with the GIS body;
the second insulator is positioned between the second barrel opening and the end cap, a third contact seat is fixedly arranged on the inner side of an insert on the second insulator, a first fracture is formed between the third contact seat and the first contact seat, and a second fracture is formed between the third contact seat and the second contact seat;
the first moving contact is assembled on the first contact seat or the third contact seat in a sliding mode so as to realize the connection and disconnection of the first contact seat and the third contact seat;
and the second moving contact is assembled on the second contact seat or the third contact seat in a sliding manner so as to realize the connection and disconnection of the second contact seat and the third contact seat.
The beneficial effects are that: when the cable terminal connecting device for the GIS in the embodiment is used for carrying out a withstand voltage test on the GIS body and a power cable, the barrel does not need to be repeatedly charged and discharged with insulating gas, so that the waste of SF6 gas and the pollution to the atmosphere are avoided; in addition, not only does not need to repeatedly disassemble and assemble the connecting conductor in the cylinder body, but also does not need to replace the conducting rod in the pressure-resistant sleeve, thereby reducing the labor intensity and improving the working efficiency and the product reliability.
Furthermore, the first moving contact is assembled on the third contact seat in a sliding mode, a first transmission rod is arranged on the vertical portion of the barrel, a gear rack mechanism is arranged between the first transmission rod and the first moving contact, and the first transmission rod is driven by a driving device to rotate so as to drive the first moving contact to move on the third contact seat directly.
The beneficial effects are that: compare in setting up first moving contact on first contact seat, can reduce the space of first contact seat and occupy to make cable terminal connecting device for GIS's structure comparatively compact.
Furthermore, the second moving contact is assembled on a second contact seat in a sliding mode, a second transmission rod is arranged on the horizontal portion of the barrel, a gear rack mechanism is arranged between the second transmission rod and the second moving contact, and the second transmission rod is driven by a driving device to rotate so as to drive the second moving contact to move on the second contact seat directly.
The beneficial effects are that: compare in setting up the second moving contact on the third contact seat, can reduce the weight of third contact seat to guarantee the stability of third contact seat.
Furthermore, a transition cylinder is arranged between the second cylinder opening and the end cap, the edge of the second insulator is fixedly arranged between the second cylinder opening and the transition cylinder, and the end cap is fixedly arranged at one end, far away from the second cylinder opening, of the transition cylinder so as to plug the second cylinder opening.
The beneficial effects are that: therefore, when the pressure resistance test is carried out, the transition cylinder does not need to be installed, and only the end cap needs to be detached, so that the installation procedures are reduced, and the test efficiency is improved.
Furthermore, the second insulator is a basin-type insulator, the convex part of the second insulator faces the outside of the barrel, the outer side of the insert of the second insulator is fixedly provided with a static contact, the static contact is provided with a shielding cover, and the shielding cover is detached during a voltage withstand test.
The beneficial effects are that: the convex part of the second insulator faces the outside of the cylinder body, so that the space in the cylinder body is prevented from being occupied, the static contact is fixed on the second insulator, and the static contact does not need to be installed during a voltage withstand test, so that the installation procedures are reduced, and the test efficiency is improved; and the shielding cover can be used for homogenizing the electric field at the static contact position, so that the discharge phenomenon is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a cable terminal connection device for a GIS in the prior art;
fig. 2 is a schematic structural view of the cable termination connection device for GIS in fig. 1 when the cable termination is voltage-resistant;
fig. 3 is a schematic structural view of the cable terminal connection device for GIS in fig. 1 when the cable terminal connection device is applied to a GIS body for voltage withstanding;
fig. 4 is a schematic structural view of the cable terminal connection device for a GIS of the present invention;
fig. 5 is a schematic structural view of the cable termination connection device for GIS in fig. 4 when the cable termination is voltage-resistant;
fig. 6 is a schematic structural view of the cable terminal connection device for GIS in fig. 4 when the cable terminal connection device for GIS is resistant to pressure of the GIS body;
in fig. 1 to 3: 11-cable termination; 12-a first connection conductor; 13-a second connection conductor; 14-pressure-resistant casing; 15-a conductive rod;
in fig. 4 to 6: 21-barrel body; 22-cable termination; 23-a first contact block; 24-a first movable contact; 25-a first transfer lever; 26-a third contact block; 27-a second insulator; 28-static contact; 29-a shield; 30-an end cap; 31-a transition cylinder; 32-a second moving contact; 33-a second transmission rod; 34-a second contact block; 35-a first insulator; 36-a conductive rod; 37-pressure-resistant casing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the drawings and are only for convenience in describing the present invention, but do not indicate that the device or component referred to must have a specific orientation and therefore should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the cable terminal connection device for a GIS of the present invention:
as shown in fig. 4, the cable terminal connection device for the GIS includes a cylinder 21, a cable terminal 22 is disposed in the cylinder 21, and the upper end of the cable terminal 22 is conductively connected with a first contact seat 23; the cylinder 21 has a first opening facing the left side to be butted with the GIS body and a second opening facing upward to be butted with the pressure-resistant bushing. In this embodiment, the first contact seat 23 is a stationary contact.
In this embodiment, the second bobbin opening is fixedly connected with a second insulator 27, a third contact block 26 is fixedly arranged on the inner side of an insert of the second insulator 27, and a first fracture is formed between the third contact block 26 and the first contact block 23; the third contact block 26 extends in the vertical direction, and a stationary contact is disposed on the left side of the third contact block 26.
In this embodiment, the third contact block 26 has a vertical cavity, the first movable contact 24 is electrically assembled in the vertical cavity, and the first movable contact 24 slides in the vertical cavity along the up-down direction, so as to switch on and off the first contact block 23 and the third contact block 26.
In this embodiment, a first transmission rod 25 is rotatably assembled on the vertical portion of the cylinder 21, a rack and pinion mechanism is disposed between the first transmission rod 25 and the first movable contact 24, and the first transmission rod 25 is driven by a driving device to rotate so as to drive the first movable contact 24 to move directly on the third contact block 26.
In this embodiment, the second insulator 27 is a basin-shaped insulator, and the convex portion of the second insulator 27 faces the outside of the barrel 21, so as to avoid occupying the space inside the barrel 21; a static contact 28 is fixedly arranged on the outer side of the insert of the second insulator 27, a shielding cover 29 is arranged on the static contact 28, the shielding cover 29 is removed during a voltage withstand test, the static contact 28 is fixed on the second insulator 27, and the static contact does not need to be installed during the voltage withstand test, so that the installation procedures are reduced, and the test efficiency is improved; the shielding cover 29 can make the electric field at the stationary contact 28 uniform, thereby avoiding the generation of discharge. In other embodiments, the second insulator is a flat plate insulator.
As shown in fig. 4, a transition cylinder 31 is further fixedly connected above the cylinder body 21, an end cap 30 is arranged at one end of the transition cylinder 31 far away from the cylinder body 21, the end cap 30 is used for plugging the transition cylinder 31 to realize plugging of the second cylinder opening, and the end cap 30 is removed during a pressure test; the edge of the second insulator 27 is located between the barrel 21 and the transition cylinder 31, and the transition cylinder 31 is used for accommodating the convex part of the second insulator 27.
In this embodiment, the radial dimension of the flange at the upper end of the transition cylinder 31 is smaller than the radial dimension of the flange at the lower end of the transition cylinder 31, the flange hole at the upper end of the transition cylinder 31 corresponds to the flange hole on the pressure-resistant casing, and the flange hole at the lower end of the transition cylinder 31 corresponds to the flange hole on the cylinder body 21, so that when a pressure-resistant test is performed, the transition cylinder does not need to be installed, and only the end cap 30 needs to be detached, thereby reducing the installation procedures and improving the test efficiency.
As shown in fig. 4, a first insulator 35 is fixedly connected to the first nozzle, a second contact block 34 is fixedly arranged inside an insert of the first insulator 35, and the second contact block 34 is used for electrically connecting with the GIS body.
In this embodiment, a second break is formed between the second contact block 34 and the third contact block 26, and the second contact block 34 and the third contact block 26 are turned on and off through the second movable contact 32. Specifically, the second contact block 34 extends along the left-right direction, the second contact block 34 has a horizontal cavity, the second moving contact 32 is electrically assembled in the horizontal cavity, and the second moving contact 32 slides in the horizontal cavity along the left-right direction to contact with or separate from the fixed contact on the left side of the third contact block 26, so that the second contact block 34 and the third contact block 26 are switched on and off.
In this embodiment, the horizontal portion of the barrel 21 is rotatably assembled with a second transmission rod 33, a rack-and-pinion mechanism is disposed between the second transmission rod 33 and the second movable contact 32, and the second transmission rod 33 is driven by the driving device to rotate so as to drive the second movable contact 32 to move linearly in the second contact block 34.
The specific pressure-resistant method is as follows: in normal operation, as shown in fig. 4, the GIS body is in a conductive state with the cable terminal 22; when a voltage withstand test is performed on the power cable, the end cap 30 and the shielding cover 29 are removed, the voltage withstand sleeve 37 is installed on the transition cylinder 31, and the lower end of the conductive rod 36 in the voltage withstand sleeve 37 is inserted into the static contact 28, so that the conductive rod 36 is conducted with the third contact seat 26; then, the driving device drives the second driving rod 33 to rotate, so that the second contact block 34 is disconnected from the third contact block 26, as shown in fig. 5, at this time, the voltage-proof sleeve 37 is conducted with the cable terminal 22 and disconnected with the GIS body, so as to perform the voltage-proof test on the cable terminal 22 alone. When the voltage withstand test is performed on the GIS body, the driving device drives the second transmission rod 33 to rotate, so that the second contact block 34 and the third contact block 26 are conducted again, and drives the first transmission rod 25 to rotate, so that the first contact block 23 and the third contact block 26 are disconnected, as shown in fig. 6, at this time, the voltage withstand sleeve 37 is conducted with the GIS body and disconnected with the cable terminal 22, so as to perform the voltage withstand test on the GIS body alone.
When the cable terminal connecting device for the GIS in the embodiment is used for carrying out a withstand voltage test on the GIS body and a power cable, the barrel does not need to be repeatedly charged and discharged with insulating gas, so that the waste of SF6 gas and the pollution to the atmosphere are avoided; in addition, not only does not need to repeatedly disassemble and assemble the connecting conductor in the cylinder body, but also does not need to replace the conducting rod in the pressure-resistant sleeve, thereby reducing the labor intensity and improving the working efficiency and the product reliability.
Embodiment 2 of the cable terminal connection device for GIS of the present invention:
the difference between this embodiment and embodiment 1 is that, in this embodiment, the second contact seat 34 extends along the left-right direction, the second contact seat 34 has a horizontal cavity, the second movable contact 32 is electrically assembled in the horizontal cavity, and the second movable contact 32 slides along the left-right direction in the horizontal cavity of the second contact seat 34 to contact with or separate from the fixed contact on the left side of the third contact seat 26. In this embodiment, the second contact seat is a fixed contact, the third contact seat has not only a vertical cavity but also a horizontal cavity, and the second movable contact slides in the horizontal cavity of the third contact seat along the left-right direction.
Embodiment 3 of the cable terminal connection device for a GIS of the present invention:
the difference between this embodiment and embodiment 1 is that, in this embodiment, the third contact block 26 has a vertical cavity, the first movable contact 24 is electrically assembled in the vertical cavity, and the first movable contact 24 slides in the vertical cavity of the third contact block 26 along the up-down direction, so as to achieve the on-off of the first contact block 23 and the third contact block 26. In this embodiment, the first contact seat has a vertical cavity, and the first moving contact slides in the vertical cavity of the first contact seat along the up-down direction, so as to switch on and off the first contact seat and the third contact seat.
Embodiment 4 of the cable terminal connection device for GIS of the present invention:
the present embodiment is different from embodiment 1 in that, in the present embodiment, the second insulator 27 is a basin-type insulator, the convex portion of the second insulator 27 faces the outside of the cylindrical body 21, a transition cylinder 31 is fixedly connected above the cylindrical body 21, and the transition cylinder 31 is used for accommodating the convex portion of the second insulator 27. In this embodiment, a transition cylinder is not provided, at this time, the convex portion of the second insulator faces the inside of the cylinder body, and the end cap is directly fixed on the second cylinder opening to plug the second cylinder opening.
In the embodiment of the GIS according to this embodiment, the GIS includes a GIS body and a cable terminal connection device, and the cable terminal connection device has the same structure as any one of embodiments 1 to 4 of the above-mentioned cable terminal connection device for GIS, and is not described herein again.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (10)

  1. Cable terminal connecting device for GIS, its characterized in that includes:
    the cable terminal is arranged in the cylinder body, the cable terminal is electrically connected with the first contact seat, the cylinder body is provided with a first cylinder opening and a second cylinder opening, the first cylinder opening is used for being in butt joint with the GIS body, and the second cylinder opening faces upwards and is used for being in butt joint with the pressure-resistant sleeve;
    the end cap is arranged at the second cylinder opening and used for plugging the second cylinder opening and removing the end cap during a pressure test;
    the first insulator is fixedly arranged at the first opening, and a second contact seat is fixedly arranged on the inner side of the insert on the first insulator and is used for being in conductive connection with the GIS body;
    the second insulator is positioned between the second barrel opening and the end cap, a third contact seat is fixedly arranged on the inner side of an insert on the second insulator, a first fracture is formed between the third contact seat and the first contact seat, and a second fracture is formed between the third contact seat and the second contact seat;
    the first moving contact is assembled on the first contact seat or the third contact seat in a sliding mode so as to realize the connection and disconnection of the first contact seat and the third contact seat;
    and the second moving contact is assembled on the second contact seat or the third contact seat in a sliding manner so as to realize the connection and disconnection of the second contact seat and the third contact seat.
  2. 2. The cable termination apparatus for GIS according to claim 1, wherein the first movable contact is slidably mounted on a third contact block, a first transmission rod is disposed on the vertical portion of the cylinder, a rack and pinion mechanism is disposed between the first transmission rod and the first movable contact, and the first transmission rod is driven by the driving device to rotate so as to drive the first movable contact to move directly on the third contact block.
  3. 3. The cable termination device according to claim 1, wherein the second movable contact is slidably mounted on a second contact seat, a second transmission rod is disposed on the horizontal portion of the barrel, a rack and pinion mechanism is disposed between the second transmission rod and the second movable contact, and the second transmission rod is driven by the driving device to rotate so as to drive the second movable contact to move directly on the second contact seat.
  4. 4. The cable termination device for the GIS according to claim 1, 2 or 3, wherein a transition cylinder is arranged between the second cylinder opening and the end cap, the edge of the second insulator is fixedly arranged between the second cylinder opening and the transition cylinder, and the end cap is fixedly arranged at one end of the transition cylinder far away from the second cylinder opening so as to seal the second cylinder opening.
  5. 5. The GIS cable terminal connection device according to claim 4, wherein the second insulator is a basin-shaped insulator, the convex part of the second insulator faces the outside of the cylinder, a static contact is fixedly arranged on the outer side of the insert of the second insulator, a shielding cover is arranged on the static contact, and the shielding cover is removed during a withstand voltage test.
  6. GIS, including GIS body and cable termination connecting device, its characterized in that, cable termination connecting device includes:
    the cable terminal is arranged in the cylinder body, the cable terminal is electrically connected with the first contact seat, the cylinder body is provided with a first cylinder opening and a second cylinder opening, the first cylinder opening is used for being in butt joint with the GIS body, and the second cylinder opening faces upwards and is used for being in butt joint with the pressure-resistant sleeve;
    the end cap is arranged at the second cylinder opening and used for plugging the second cylinder opening and removing the end cap during a pressure test;
    the first insulator is fixedly arranged at the first opening, and a second contact seat is fixedly arranged on the inner side of the insert on the first insulator and is used for being in conductive connection with the GIS body;
    the second insulator is positioned between the second barrel opening and the end cap, a third contact seat is fixedly arranged on the inner side of an insert on the second insulator, a first fracture is formed between the third contact seat and the first contact seat, and a second fracture is formed between the third contact seat and the second contact seat;
    the first moving contact is assembled on the first contact seat or the third contact seat in a sliding way so as to realize the connection and disconnection of the first contact seat and the third contact seat;
    and the second moving contact is assembled on the second contact seat or the third contact seat in a sliding manner so as to realize the connection and disconnection of the second contact seat and the third contact seat.
  7. 7. The GIS of claim 6 wherein the first movable contact is slidably mounted on the third contact block, and wherein a first driving rod is disposed on the vertical portion of the cylinder, and a rack and pinion mechanism is disposed between the first driving rod and the first movable contact, the first driving rod being driven by the driving device to rotate so as to drive the first movable contact to move directly on the third contact block.
  8. 8. The GIS of claim 6 wherein the second movable contact is slidably mounted on a second contact block, a second transmission rod is disposed on the horizontal portion of the cylinder, and a rack and pinion mechanism is disposed between the second transmission rod and the second movable contact, wherein the second transmission rod is driven by the driving device to rotate so as to drive the second movable contact to move directly on the second contact block.
  9. 9. The GIS of claim 6, 7 or 8 wherein a transition cylinder is disposed between the second nozzle and the end cap, the edge of the second insulator is fixed between the second nozzle and the transition cylinder, and the end cap is fixed at an end of the transition cylinder away from the second nozzle to close the second nozzle.
  10. 10. The GIS according to claim 9, wherein the second insulator is a basin insulator, the convex part of the basin insulator faces the outside of the cylinder, a static contact is fixedly arranged on the outer side of the insert of the second insulator, and a shielding cover is arranged on the static contact and is removed during a withstand voltage test.
CN202011406685.1A 2020-12-04 2020-12-04 GIS and cable terminal connecting device for GIS Active CN112383019B (en)

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CN101527431A (en) * 2009-04-13 2009-09-09 中国西电电气股份有限公司 Supervoltage/extra-high voltage GIS isolating device
CN102667993A (en) * 2009-12-14 2012-09-12 阿尔斯通技术有限公司 Shielded high- or medium-voltage electrical equipment having improved mounting and including rotation shaft and movable contact driven by said shaft, and use in three-phase stations
CN202696088U (en) * 2012-07-06 2013-01-23 厦门华电开关有限公司 Insulation support device used in bus bar
CN105932578A (en) * 2016-04-21 2016-09-07 国家电网公司 Charged and pressurized leak stopping device for GIS equipment gas leak
CN106328435A (en) * 2016-11-04 2017-01-11 平高集团有限公司 Arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber
CN206481030U (en) * 2017-01-09 2017-09-08 河南平高电气股份有限公司 A kind of GIS cable termination devices and the GIS device using the device
CN108828415A (en) * 2018-05-29 2018-11-16 河南平高电气股份有限公司 GIS device, GIS cable terminal connection device and its pressure resistant test method
CN110034509A (en) * 2019-03-26 2019-07-19 河南平高电气股份有限公司 A kind of electric switch and its conduction connecting structure
CN214124788U (en) * 2020-12-04 2021-09-03 平高集团有限公司 Cable terminal connecting device for GIS and GIS

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JPH06133419A (en) * 1992-10-19 1994-05-13 Toshiba Corp Gas-insulation switchgear
CN107831424B (en) * 2017-11-27 2024-04-02 许继（厦门）智能电力设备股份有限公司 Be used for GIS interval withstand voltage test testing arrangement

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CN101527431A (en) * 2009-04-13 2009-09-09 中国西电电气股份有限公司 Supervoltage/extra-high voltage GIS isolating device
CN102667993A (en) * 2009-12-14 2012-09-12 阿尔斯通技术有限公司 Shielded high- or medium-voltage electrical equipment having improved mounting and including rotation shaft and movable contact driven by said shaft, and use in three-phase stations
CN202696088U (en) * 2012-07-06 2013-01-23 厦门华电开关有限公司 Insulation support device used in bus bar
CN105932578A (en) * 2016-04-21 2016-09-07 国家电网公司 Charged and pressurized leak stopping device for GIS equipment gas leak
CN106328435A (en) * 2016-11-04 2017-01-11 平高集团有限公司 Arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber
CN206481030U (en) * 2017-01-09 2017-09-08 河南平高电气股份有限公司 A kind of GIS cable termination devices and the GIS device using the device
CN108828415A (en) * 2018-05-29 2018-11-16 河南平高电气股份有限公司 GIS device, GIS cable terminal connection device and its pressure resistant test method
CN110034509A (en) * 2019-03-26 2019-07-19 河南平高电气股份有限公司 A kind of electric switch and its conduction connecting structure
CN214124788U (en) * 2020-12-04 2021-09-03 平高集团有限公司 Cable terminal connecting device for GIS and GIS

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