KR20130127818A - Structure of earthing switch in gas insulated switchgear - Google Patents

Structure of earthing switch in gas insulated switchgear Download PDF

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Publication number
KR20130127818A
KR20130127818A KR1020120051608A KR20120051608A KR20130127818A KR 20130127818 A KR20130127818 A KR 20130127818A KR 1020120051608 A KR1020120051608 A KR 1020120051608A KR 20120051608 A KR20120051608 A KR 20120051608A KR 20130127818 A KR20130127818 A KR 20130127818A
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KR
South Korea
Prior art keywords
ground terminal
contact portion
coupled
enclosure
insulated switchgear
Prior art date
Application number
KR1020120051608A
Other languages
Korean (ko)
Inventor
정이식
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020120051608A priority Critical patent/KR20130127818A/en
Publication of KR20130127818A publication Critical patent/KR20130127818A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms
    • 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
    • H02B13/075—Earthing arrangements

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

Abstract

The present invention relates to a ground switch of a gas insulated switchgear, and more particularly, to a structure of a ground switch of a gas insulated switchgear that can simplify the structure of the ground switch and reduce the number of parts to realize cost reduction and assembly time. It is about.
The present invention is a ground terminal is installed in the enclosure; A ground terminal coupled to the ground terminal; A housing coupled to the ground terminal inside the enclosure; A movable contact portion coupled to the housing so as to be movable up and down; A first link having one end coupled to an upper portion of the movable contact portion; A second link having one end coupled to the other end of the first link, and the other end coupled to an axis of the manipulator where a driving force is generated by an operator's operation; And a fixed contact portion provided to face the movable contact portion to a conductor installed in the enclosure.

Description

Structure of earthing switch in gas insulated switchgear {Structure of earthing switch in gas insulated switchgear}

The present invention relates to a ground switch of a gas insulated switchgear, and more particularly, to a structure of a ground switch of a gas insulated switchgear that can simplify the structure of the ground switch and reduce the number of parts to realize cost reduction and assembly time. It is about.

Gas Insulated Switchgear (GIS) is a power switch used in indoor and outdoor power plants and substations.It can safely open and close the lines in abnormal conditions such as power accidents and short circuits under normal conditions. Appropriate protection of the system.

Such gas insulated switchgear includes main bus, disconnecting switch (DS), earthing switch (ES), current transformer (CT), line grounding switch (LES) and bushing (Gas to Air Bushing), operation box and the like.

At this time, the ground switch is an important device for the operation of the equipment and substation, and grounds the converter to the ground during the inspection and maintenance of the converter, and is usually provided with a driving device for driving the ground switch, the ground by driving the drive device The operation is made.

As an example of such a grounding switch, a conductor is coupled to an insulating spacer installed in an enclosure, a fixed contact portion is coupled to a conductor, a fixed contact portion is positioned inside the enclosure, and a movable contact is connected to a ground terminal on an upper portion of the fixed contact portion. The contact portion and the movable contact portion were moved up and down to contact and separate the movable contact portion from the fixed contact portion to short-circuit or open the contact.

At this time, in order to move the movable contact portion, a lever, a control device is built into the ground switch, the lever and the control device is connected to the main shaft for rotational movement, while the linear axis by the rotational movement of the main shaft It consists of a structure that is connected to the insulating operating rod for driving the movable contact.

In addition, as the ground terminal extends to the upper side of the enclosure, a support extending downward from the upper inner surface of the enclosure and a plate vertically coupled to the support should be provided for the support.

The ground switch of the conventional gas insulated switchgear as described above has a problem in that a large installation space is secured due to its complicated structure and cumbersome assembly work.

The present invention proposed to solve the above problems of the prior art aims to provide a structure of a ground switch of a gas insulated switchgear which can simplify the structure, reduce the number of parts, and realize cost reduction and assembly time. It is done.

In order to achieve the above object, the present invention is a ground terminal is installed in the enclosure; A ground terminal coupled to the ground terminal; A housing coupled to the ground terminal inside the enclosure; A movable contact portion coupled to the housing so as to be movable up and down; A first link having one end coupled to an upper portion of the movable contact portion; A second link having one end coupled to the other end of the first link, and the other end coupled to an axis of the manipulator where a driving force is generated by an operator's operation; And a fixed contact portion provided to face the movable contact portion to a conductor installed in the enclosure.

At this time, the ground terminal is installed long in the horizontal direction on one side of the enclosure, one end protrudes to the outside of the enclosure, the inner end is formed at the other end located inside the enclosure.

In addition, the ground terminal is installed long in the ground terminal in the horizontal direction, one end is located in the inner space of the ground terminal, the other end is exposed to the outside through one end of the ground terminal.

On the other hand, the housing is a flange portion coupled to one end of the ground terminal; And it may include a body extending downward from the flange portion.

At this time, the movable contact portion may be installed to be movable up and down through the body of the housing.

In addition, the other end of the second link is rotatably provided on the shaft.

According to the configuration of the present invention as described above, by coupling the ground terminal to the ground terminal provided on one side of the enclosure, by moving the movable contact portion to the housing coupled to the ground terminal, the installation structure of the movable contact portion is simplified, By reducing the number of parts, cost reduction and assembly time can be realized.

1 is a state diagram showing an open state in a structure of a ground switch of a gas insulated switchgear according to an embodiment of the present invention.
2 is a state diagram showing a closed state in the structure of the ground switch of the gas insulated switchgear according to the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the drawings showing preferred embodiments, details of the objects, technical constructions and effects of the present invention will be described in detail. The terms defined in describing the present invention are defined in consideration of the functions of the present invention and should not be construed to limit the technical elements of the present invention.

1 and 2, the structure of the ground switch of the gas insulated switchgear according to an embodiment of the present invention is a ground terminal 20 installed in the enclosure 10, a ground terminal coupled to the ground terminal 20 30, a housing 40 coupled to the ground terminal 30 inside the enclosure 10, a movable contact portion 50 coupled to the housing 40 so as to be movable up and down, and the movable contact portion ( The first link 60, one end is coupled to the upper portion of the 50, one end is coupled to the first link 60, the other end is coupled to the shaft 80 of the manipulator generated by the operator's operation driving force is generated And a fixed contact portion 90 which is installed to face the movable contact portion 50 to the two links 70 and the conductor 100 installed in the enclosure 10.

Specifically, the enclosure 10 is filled with SF6 gas having a high insulation force therein, the ground terminal 20 is fixedly installed on one side of the enclosure 10, in this case, the ground terminal 20 Is installed long in the horizontal direction, one end protrudes to the outside of the enclosure 10, the inner end is formed at the other end located inside the enclosure (10).

Meanwhile, the ground terminal 20 is formed of an insulating material to insulate between the enclosure 10 and the ground terminal 30 installed in the ground terminal 20.

The ground terminal 20 is installed in the ground terminal 30 in a horizontal direction, one end is located in the inner space of the ground terminal 20, the other end is exposed to the outside through one end of the ground terminal 20. do.

The housing 40 is coupled to one end of the ground terminal 30 in the enclosure 10, and the housing 40 is coupled to one end of the ground terminal 30 and the housing 41. The body 43 extends downward from the flange portion 41 of the 40, the body 43 is provided with the movable contact portion 50.

In this case, the housing 40 is formed of a metal material such that the ground terminal 30 and the movable contact portion 50 are energized with each other, and for a firm fixing of the housing 40, the body of the housing 40. 43 is preferably fixed to the ground terminal 20.

The movable contact portion 50 is installed to be moved up and down through the body 43 at a substantially central portion of the body 43 of the housing 40.

The first link 60 and the second link 70 are sequentially installed on the movable contact portion 50.

That is, one end of the first link 60 is installed above the movable contact portion 50, and one end of the second link 70 is installed on the other end of the first link 60. The other end of the two links 70 is provided on the shaft 80 of the manipulator (not shown) in which driving force is generated by the operator's operation. At this time, the other end of the second link 70 is rotatably installed on the shaft (80).

The fixed contact portion 90 is positioned to correspond to the lower portion of the movable contact portion 50, and is fixedly coupled to the conductor 100 installed inside the enclosure 10, such that the movable contact portion 50 is vertically up and down. As the furnace moves, it is connected to and disconnected from the movable contact portion 50.

The closing operation and the opening operation in the structure of the ground switch of the gas insulated switchgear having the above configuration will be briefly described as follows.

First, when an operator operates a manipulator (not shown) for closing operation, for example, when a lever (not shown) connected to the shaft 80 is rotated to the right, the force is transmitted through the shaft 80. As the second link 70 rotates counterclockwise in the drawing about the shaft 80, and the first link 60 moves downward as the second link 70 rotates, The movable contact portion 50 installed at one end of the first link 60 moves downward to connect with the fixed contact portion 90 to form a closed state as shown in FIG. 2.

On the contrary, when the operator operates the manipulator (not shown) for the opening operation, for example, when the lever (not shown) connected to the shaft 80 is rotated to the left side, the force in the closing operation through the shaft 80. When the force in the opposite direction is transmitted, the second link 70 rotates in the clockwise direction about the shaft 80 and the second link 70 rotates about the shaft 80. ) Moves upward, and the movable contact portion 50 installed at one end of the second link 60 moves upward to be separated from the fixed contact portion 90 to form an open state as shown in FIG. 1. do.

As described above with reference to the drawings illustrating the structure of the ground switch of the gas insulated switchgear according to the present invention, the present invention is not limited to the above-described embodiment, the scope of the present invention as claimed in the claims Without departing from the scope of the present invention, those skilled in the art can make various modifications and such modifications fall within the scope of the claims.

10: enclosure 20: ground terminal
30: ground terminal 40: housing
41: flange 43: body
50: movable contact portion 60: first link
70: second link 80: axis
90: fixed contact portion 100: conductor

Claims (6)

A ground terminal installed in the enclosure;
A ground terminal coupled to the ground terminal;
A housing coupled to the ground terminal inside the enclosure;
A movable contact portion coupled to the housing so as to be movable up and down;
A first link having one end coupled to an upper portion of the movable contact portion;
A second link having one end coupled to the other end of the first link, and the other end coupled to an axis of the manipulator where a driving force is generated by an operator's operation; And
A structure of a ground switch of a gas insulated switchgear including a fixed contact portion installed to face the movable contact portion in a conductor installed in the enclosure. The method of claim 1,
The ground terminal is installed long in the horizontal direction on one side of the enclosure, one end protrudes to the outside of the enclosure, the other end located inside the enclosure structure of the ground switch of the gas insulated switchgear is formed. 3. The method of claim 2,
The ground terminal is installed long in the horizontal direction in the ground terminal, one end is located in the inner space of the ground terminal, the other end of the structure of the ground switch of the gas insulated switchgear exposed to the outside through one end of the ground terminal. The method of claim 3, wherein
The housing is a flange portion coupled to one end of the ground terminal; And
A structure of a ground switch of the gas insulated switchgear including a body extending downward from the flange portion. 5. The method of claim 4,
The movable contact portion is a structure of a ground switch of the gas insulated switchgear installed to be movable up and down through the body of the housing. The method of claim 1,
The other end of the second link is a structure of a ground switch of the gas insulated switchgear is installed rotatably on the shaft.
KR1020120051608A 2012-05-15 2012-05-15 Structure of earthing switch in gas insulated switchgear KR20130127818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120051608A KR20130127818A (en) 2012-05-15 2012-05-15 Structure of earthing switch in gas insulated switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120051608A KR20130127818A (en) 2012-05-15 2012-05-15 Structure of earthing switch in gas insulated switchgear

Publications (1)

Publication Number Publication Date
KR20130127818A true KR20130127818A (en) 2013-11-25

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KR1020120051608A KR20130127818A (en) 2012-05-15 2012-05-15 Structure of earthing switch in gas insulated switchgear

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210071261A (en) * 2019-12-06 2021-06-16 일진전기 주식회사 Earthing switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210071261A (en) * 2019-12-06 2021-06-16 일진전기 주식회사 Earthing switch

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