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KR100199097B1 - Earth device of load switch - Google Patents

Earth device of load switch Download PDF

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Publication number
KR100199097B1
KR100199097B1 KR1019960024482A KR19960024482A KR100199097B1 KR 100199097 B1 KR100199097 B1 KR 100199097B1 KR 1019960024482 A KR1019960024482 A KR 1019960024482A KR 19960024482 A KR19960024482 A KR 19960024482A KR 100199097 B1 KR100199097 B1 KR 100199097B1
Authority
KR
South Korea
Prior art keywords
grounding
bushing
switch
ground
mold cone
Prior art date
Application number
KR1019960024482A
Other languages
Korean (ko)
Other versions
KR980006684A (en
Inventor
이석원
Original Assignee
이종수
엘지산전주식회사
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Publication date
Application filed by 이종수, 엘지산전주식회사 filed Critical 이종수
Priority to KR1019960024482A priority Critical patent/KR100199097B1/en
Publication of KR980006684A publication Critical patent/KR980006684A/en
Application granted granted Critical
Publication of KR100199097B1 publication Critical patent/KR100199097B1/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/075Earthing arrangements

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

Abstract

본 발명에 의한 부하 개폐기의 접지장치는 개폐기 내부의 3-포지션기구의 접지점점과 도통되며 개폐기 외부로 돌출형성된 접지부싱과, 일단은 상기 접지부싱에 도전부가 노출되지 않게 결합되며 타단은 접지되도록 한 몰드콘 접속재로 구성됨으로써, 개폐기의 본체 일측에 설치한 접지부싱에 체결단부를 몰드콘으로 형성한 접속재를 결합하고, 그 반대편 단부를 바닥의 접지단자와 연결하여, 개폐기 내부의 3-포지션기구의 동작으로 방전되도록 함으로써, 방전동작을 안전하고 간단하게 하며, 상기 접속재를 통해 손쉽게 테스트를 할 수 있도록 하였다.The grounding device of the load switch according to the present invention is connected to the ground point of the three-position mechanism inside the switch, and the ground bushing protruding out of the switch, and one end is coupled so that the conductive portion is not exposed to the ground bushing and the other end is grounded. The mold cone connecting member is connected to the grounding bushing provided on one side of the main body of the switch, and the connecting member formed of the mold cone is joined to the grounding terminal on the opposite side thereof. By discharging in an operation, the discharging operation is made safe and simple, and the test can be easily performed through the connecting member.

Description

부하 개폐기의 접지장치Grounding device of load switch

제1도는 종래의 기술에 의한 다회로 개폐기의 정면도.1 is a front view of a multi-circuit switch according to the prior art.

제2도는 종래의 기술에 의한 다회로 개폐기의 측면도.2 is a side view of a multi-circuit switch according to the prior art.

제3도는 종래의 기술에 의한 개폐기의 동작상태도.3 is an operating state diagram of a switch according to the prior art.

제4도의 (a)(b)는 종래 개폐기의 접속재 단말 키트(kit)의 결합상태도 및 분해상태도.Figure 4 (a) (b) is a coupling state and disassembled state diagram of a conventional connection member terminal kit (kit) of the switch.

제5도는 종래 접속재 단말키트에 의한 방전동작을 보인 것으로, (a)도는 절연캡이 제거되는 상태도.5 is a view illustrating a discharge operation by a conventional terminal member kit, (a) is a state in which the insulating cap is removed.

(b)도는 접지엘보를 삽입하는 상태도.(b) is a state diagram in which the grounding elbow is inserted.

제6도는 본 발명에 의한 3-포지션 다회로 개폐기를 나타내는 정면도.6 is a front view showing a three-position multi-circuit switch according to the present invention.

제7도는 본 발명에 의한 3-포지션 다회로 개폐기를 나타내는 측면도.7 is a side view showing a three-position multi-circuit switch according to the present invention.

제8도는 본 발명에 의한 부하 개폐기의 접지장치를 나타내는 결합도.8 is a coupling diagram showing the grounding device of the load switch according to the present invention.

제9도는 본 발명에 의한 개폐기의 접속재를 이용한 방전동작을 나타내는 상태도.9 is a state diagram showing a discharging operation using a connection member of a switch according to the present invention.

제10도는 본 발명에 의한 개폐기의 접속재를 이용한 테스트동작을 나타내는 상태도.10 is a state diagram showing a test operation using the connection member of the switch according to the present invention.

제11도는 본 발명에 의한 개폐기의 접지부싱을 나타내는 일부절결 단면도.Figure 11 is a partially cutaway cross-sectional view showing a ground bushing of the switch according to the present invention.

제12도는 본 발명에 의한 개폐기의 접속재를 나타내는 일부절결 단면도.12 is a partially cutaway sectional view showing a connection member of a switch according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

30 : 접지부싱 31 : 컨덕터30: grounding bushing 31: conductor

32, 43 : 접속단자 33 : 에폭시32, 43: connection terminal 33: epoxy

40 : 절연 접속재 41 : 몰드콘40: insulating connection material 41: mold cone

42 : 케이블동심 44 : 케이블42: cable concentric 44: cable

50 : 접지단자50: ground terminal

본 발명은 부하 개폐기의 접지장치에 관한 것으로, 특히 개폐기의 본체 일측에 설치한 접지부싱에 체결단부를 몰드콘으로 형성한 접속재를 결합하고, 그 반대편 단부를 바닥의 접지단자와 연결하여, 개폐기 내부의 3-포지션기구의 동작으로 방전되도록 함으로써, 방전동작을 안전하고 간단하게 하며, 상기 접속재를 통해 손쉽게 테스트를 할 수 있도록 한 부하 개폐기의 접지장치에 관한 것이다.The present invention relates to a grounding device for a load switchgear, in particular, to the grounding bushing installed on one side of the switchgear, connecting the connecting member formed of the mold cone with the coupling end, and connecting the opposite end to the grounding terminal of the floor, the inside of the switchgear The present invention relates to a grounding device for a load switchgear that is discharged by the operation of the 3-position mechanism, which makes the discharge operation safe and simple, and enables easy testing through the connecting member.

본 발명 기술은 주요 도심부 및 주변 간선도로의 송배전 계통상 적합한 위치에 설치되어 광범위한 수용가에 전력을 공급 또는 중단할 수 있으며, 전력회사의 계획에 의해서 또는 불의의 사고로 정전작업이 요구될 때는 일정구간을 차단할 수 있도록 한 것이다.The present invention can be installed at a suitable location on the transmission and distribution system of major urban centers and surrounding main roads to supply or stop power to a wide range of customers, and when a power outage is required by a power company's plan or an accident, It is to block the.

이와 같이 지중선로에 포설된 케이블의 긍장거리를 감안한다면 반드시 정전작업 전에 1종 접지작업이 우선되어야 하는바, 이러한 접지작업을 위해서 본 발명은 최대한 작업자의 안전성을 보장하고, 나아가 신설 또는 교체된 지응 고압케이블의 포설상태를 별도의 추가작업을 하지 않고 직접 테스팅하도록 한 유용한 기술인 것이다.Considering the distance between cables installed in underground lines, the first kind of grounding work must be prior to the blackout operation. For this grounding work, the present invention guarantees the safety of the workers as much as possible, and the newly installed or replaced It is a useful technique to directly test the installation status of high voltage cable without any additional work.

일반적으로 선로의 보수, 점검 또는 증설작업시에 가장 중요한 요소는 작업자의 안전을 도모하는 장치를 마련하는 것인데, 종래의 가스부하 개폐기에서는 이를 담보하지 못한 결함이 있었다.In general, the most important factor in the repair, inspection or extension of the track is to provide a device for the safety of the operator, there was a defect that the conventional gas load switch was not guaranteed.

이는 종래의 가스부하개폐기가 전력의 공급 및 차단을 주목적으로 제작된 2-포지션(2-position)방식 즉, 개-폐방식에 한정된 구조이기 때문에, 작업자에게 항시 사고의 위험부담을 주는 케이블에 잔류하는 전류의 처리는 접속단말을 이용한 기중(氣中)방전 형태를 취할 수 밖에 없었다.This is because the conventional gas load switch has a 2-position, that is, a structure that is limited to the open / close method, which is mainly designed to supply and cut power, and thus remain on a cable that always presents a risk of an accident to an operator. The electric current processing to take the form of air discharge using the connection terminal was inevitably taken.

이를 부연하여 설명하면, 선로의 분기작업시에 한쪽 개폐기의 스위치와 다른쪽 개폐기의 스위치를 개방하고, 투입을 방지하기 위해 자물쇠를 잠근 상태에서 충전유무를 검전하고, 기중접지 및 충전전류의 방전을 실시하며, 케이블을 분리하고, 선로를 접지하여 부싱으로 절연하는 공정을 거쳐야 했다.In detail, the switch of one switch and the switch of the other switch are opened during the branching operation of the track, the lock is locked to prevent the charging, and the charge is checked. They had to go through the process of disconnecting the cables, grounding the lines, and insulating them with bushings.

이와 같이 종래에는 접지작업이 완료도기 전까지는 활성상태(충전상태)로 간주하고, 신중한 작업을 요구하게 되는데, 숙련된 작업자들도 무의식적으로 공기중의 케이블의 방전작업중 종종 안전사고를 유발하는 문제가 있다.As such, conventionally, the grounding work is considered to be active (charged) until completed, and careful work is required, and even skilled workers unknowingly cause a safety accident during the discharging of cables in the air. have.

상기한 바와 같은 종래 가스 개폐기의 구성을 제1도 내지 제5도에 도시하였는 바, 종래의 개폐기는 조작핸들(4)의 조작에 의해 차단부가 스위칭되면, 이동접점(7)이 고정접점(6)으로 삽입 또는 이탈되어 주회로 부싱(5)을 통해 개폐기 본체(1)의 외부로 연결된 전로가 접속재 단말키트를 통해 케이블(3)로 빠져나가거나, 들어오게 되는 구조이다. 미설명 부호 2는 접속제 키트이다.The configuration of the conventional gas switch as described above is shown in FIGS. 1 to 5, when the breaker is switched by the operation of the operation handle 4, the movable contact 7 is fixed to the fixed contact 6. ) Is connected to the outside of the main body bushing (1) through the main circuit bushing (5) is the structure through which the cable (3) through the connecting member terminal kit, or come out. Reference numeral 2 is a connection kit.

한편 제4도의 (a)는 상기 접속재 단말키트의 조립상태도이고, 제4도의 (b)는 분해상태도이며, 제5도의 (a)(b)는 접지엘보의 삽입상태를 보인 동작도로서, 보수, 점검, 증설작업과 같은 작업상의 이유로 개폐기를 차단할 때, 조작자의 안전을 위해 절연 스틱(13)을 이용하여 절연캡(12)을 제거한 후, 접지엘보(14)를 순간적으로 삽입 및 이탈시켜줌으로써 케이블의 충전전류를 방전시키도록 하고 있다. 부호 8은 엘보커넥터, 9는 접속단자, 10은 케이블 어댑터, 11은 접속 플러그이다.On the other hand, Figure 4 (a) is an assembled state of the connector terminal kit, Figure 4 (b) is an exploded state diagram, Figure 5 (a) (b) is an operation diagram showing the insertion state of the ground elbow, When the switch is shut off for work reasons such as inspection, inspection, or extension work, the insulation cap 12 is removed using the insulation stick 13 for the safety of the operator, and then the ground elbow 14 is temporarily inserted and removed. The charging current of the cable is discharged. Reference numeral 8 is an elbow connector, 9 is a connection terminal, 10 is a cable adapter, and 11 is a connection plug.

이상에서와 같이, 종래의 가스 개폐기는 개폐에 따른 두가지 스위치(2-포지션)조작방식이므로, 필요에 따라 개방한 후, 케이블의 접지시 케이블의 말단에 접속재를 통한 기중 아크방전을 실시하기 때문에 안전사고를 대비하여 작업의 신중함이 요구되고, 이를 위해 접속재 단말 키트를 분해해야 하는 등의 추가작업이 필요하게 되는 번거로움이 있었다.As described above, since the conventional gas switch is a two-switch (two-position) operation method according to the opening and closing, it is safe to open, if necessary, since the air arc discharge through the connecting material at the end of the cable when the cable is grounded Careful work is required in case of an accident, and additional work such as disassembling the terminal kit for this purpose is required.

또한, 정전작업중에 접지형태가 기계적으로 완벽하다고 할 수 없기 때문에 작업자에게 항시 위험부담이 따르는 문제가 있었다.In addition, there is a problem that the worker is always at risk because the grounding form is not mechanically perfect during the blackout operation.

따라서, 본 발명의 목적은 상기와 같은 문제점을 고려하여 안출한 것으로, 개폐기의 본체 일측에 설치한 접지부싱에 체결단부를 몰드콘으로 형성한 접속재를 결합하고, 그 접속재의 반대편 단부를 바닥의 접지단자와 연결하여, 개폐기 내부의 3-포지션기구의 동작으로 방전되도록 함으로써, 방전동작을 안전하고 간단하게 하며, 또한 상기 접속재를 통해 손쉽게 테스트를 할 수 있도록 한 부하 개폐기의 접지장치를 제공함에 있다.Accordingly, an object of the present invention is to conceive in view of the above problems, the coupling of the connection member formed of the mold cone to the grounding bushing provided on one side of the main body of the switchgear, and the opposite end of the connection material to the ground of the floor In connection with the terminal, by discharging by the operation of the three-position mechanism inside the switch, it provides a grounding device of the load switchgear to make the discharge operation safe and simple, and also to be easily tested through the connecting material.

이러한, 본 발명의 목적은 개폐기 내부의 3-포지션기구의 접지점점과 도통되며 개폐기 외부로 돌출형성된 접지부싱과, 일단은 상기 접지부싱에 도전부가 노출되지 않게 결합되며 타단은 접지되도록 한 몰드콘 접속재로 구성된 부하 개폐기의 접지장치에 의해 달성된다.This, the object of the present invention is connected to the ground point of the three-position mechanism inside the switch and the ground bushing protruding out of the switch, and one end is coupled to the ground bushing so that the conductive portion is not exposed and the other end is a mold cone connecting member It is achieved by the grounding device of the load switchgear.

이하, 본 발명에 의한 부가 개폐기의 접지장치를 첨부도면에 도시한 실시예에 따라서 설명한다.Hereinafter, the grounding device of the additional switch according to the present invention will be described according to the embodiment shown in the accompanying drawings.

제6도는 본 발명에 의한 3-포지션 다회로 개폐기를 나타내는 정면도이고, 제7도는 본 발명에 의한 3-포지션 다회로 개폐기를 나타내는 측면도이며, 제8도는 본 발명에 의한 부하 개폐기의 접지장치를 나타내는 결합도이고, 제9도는 본 발명에 의한 개폐기의 접속재를 이용한 방전동작을 나타내는 상태도 및 그 접속부위를 확대해서 나타낸 확대단면도이며, 제10도는 본 발명에 의한 개폐기의 접속재를 이용한 테스트동작을 나타내는 상태도이고, 제11도는 본 발명에 의한 개폐기의 접지부싱을 나타내는 일부절결 단면도이며, 제12도는 본 발명에 의한 개폐기의 접속재를 나타내는 일부절결 단면도를 각각 보인 것이다.6 is a front view showing a 3-position multi-circuit switch according to the present invention, FIG. 7 is a side view showing a 3-position multi-circuit switch according to the present invention, and FIG. 8 is a grounding device of a load switch according to the present invention. 9 is a state diagram showing a discharging operation using the connection member of the switchgear according to the present invention and an enlarged cross-sectional view showing an enlarged connection portion thereof, and FIG. 10 shows a test operation using the connection member of the switchgear according to the present invention. 11 is a partially cutaway sectional view showing a ground bushing of a switch according to the present invention, and FIG. 12 is a partially cutaway sectional view showing a connection member of a switch according to the present invention.

이에 도시한 바와 같이, 본 발명이 적용되는 3-포지션 다회로 개폐기는 중앙에 위치한 본체부(100)와, 그 본체부의 상부에 위치하며 제어를 담당하는 컨트롤러부(200)와, 상기 본체부의 하부에 위치한 구동부(300)로 구성된다.As shown in the figure, the three-position multi-circuit switch to which the present invention is applied has a main body part 100 located at the center, a controller part 200 positioned at the top of the main body part and responsible for control, and a lower part of the main body part. It consists of a driving unit 300 located in.

상기 본체부(100)에는 전면의 상단에 상시전원과 연결된 상시전원부싱(81)이 설치되고, 상기 상시전원부싱(81)의 하부에 네 개의 자동 접점조작기구(110)가 설치되며, 그 각각의 자동 접점조작기구(110) 옆에 내부의 3-포지션기구(120)의 작동상태를 육안으로 볼 수 있도록 한 뷰잉 윈도우(viewing window)(82)가 부착되어 있고, 상기 각각의 자동 접점조작기구(110) 밑에 3개의 메인부싱(85)과 1개의 접지부싱(30)으로 이루어진 입출력부가 설치되어 있다.The main body 100 is provided with a constant power bushing 81 connected to a constant power at the upper end of the front surface, and four automatic contact manipulation mechanisms 110 are installed at the bottom of the constant power bushing 81, respectively. Next to the automatic contact manipulation mechanism 110, a viewing window 82 for visually viewing the operating state of the internal three-position mechanism 120 is attached. An input / output unit consisting of three main bushings 85 and one ground bushing 30 is provided below 110.

일측의 3상 메인부싱(85)은 입력부가 되고, 상기 입력부를 제외한 나머지 메인부싱(86)(87)(88)은 출력부가 되어 수용가로 전달된다. 즉 좌측단의 메인부싱(85)은 입력부가 되어 외부에서 3상의 전력을 공급받게 되고, 나머지 메인부싱(86)(87)(88)들은 출력부가 되어 수용가나 다른 개폐기로 전력을 공급하게 되며, 특히 마지막 개폐기일 경우는 좌측단의 입력부를 제외하고는 모두 수용가로 전력을 공급하는 수용가 출력부가 된다.One side of the three-phase main bushing 85 is an input unit, the remaining main bushings 86, 87, 88 except the input unit is an output unit is delivered to the customer. That is, the main bushing 85 at the left end becomes an input part and receives power from the three phases from the outside, and the remaining main bushings 86, 87 and 88 become output parts to supply power to a customer or another switchgear. In particular, in the case of the last switch, all except the input of the left end is a customer output unit for supplying power to the customer.

상기 각각의 메인부싱(86)(87)(88)의 옆에 내부의 3-포지션기구의 접지점점과 도통되며 개폐기 외부로 돌출형성된 접지부싱(30)과, 일단은 상기 접지부싱에 도전부가 노출되지 않게 결합되며 타단은 접지되도록 한 몰드콘 접속재(40)가 구성된다.Next to each of the main bushings 86, 87 and 88, a ground bushing 30 is formed which is connected to the ground point of the internal 3-position mechanism and protrudes out of the switch, and one end of which exposes the conductive portion to the ground bushing. The mold-con connection member 40 is configured so that the other end is grounded and the other end is grounded.

상기 접지부싱(30)은 내부에 컨덕터(31)를 형성하고, 상기 컨덕터의 단부에 접속단자(32)를 형성하며, 본체 밖으로 노출된 상기 컨덕터의 둘레를 에폭시(33)로 형성한다.The ground bushing 30 forms a conductor 31 therein, forms a connection terminal 32 at an end of the conductor, and forms a circumference of the conductor exposed out of the main body with an epoxy 33.

상기 몰드콘 접속재는 일측단부에 형성한 몰드콘(41)과, 그 몰드콘의 내부에 위치한 케이블동심(42)과, 그 케이블동심의 단부에 압착되며 상기 접지부싱에 결합되는 접속단자(43)와, 상기 몰드콘(41)과 연결되어 형성한 케이블(44)로 구성된다.The mold cone connecting member includes a mold cone 41 formed at one end, a cable concentric portion 42 located inside the mold cone, and a connection terminal 43 which is compressed to an end of the cable concentric and coupled to the ground bushing. And a cable 44 connected to the mold cone 41.

상기 접지부싱(30)의 접속단자(32)는 암나사이고, 상기 절연 접속재(40)의 접속단자(43)는 숫나사인 것을 특징으로 한다.The connecting terminal 32 of the ground bushing 30 is a female screw, and the connecting terminal 43 of the insulating connecting member 40 is characterized in that a male screw.

이와 같이 구성된 본 발명에 의한 부하 개폐기의 접지장치의 작용효과를 설명하면 다음과 같다.Referring to the effect of the grounding device of the load switch according to the present invention configured as described above are as follows.

개폐기 내부의 3-포지션기구가 '오프' 접점에서 '접지' 접점으로 이동하게 되면 상기 접지접점과 도통하도록 설치한 본체 외부의 접지부싱(30)을 통해 도전부가 완전히 가려진 몰드콘 접속재를 통해 바닥에 설치한 접지단자(50)로 접지가 된다.When the 3-position mechanism inside the switch moves from the 'off' contact point to the 'ground' contact point, the conductive part is completely covered by the mold cone connecting member, which is completely covered by the ground bushing 30 outside the main body installed to conduct with the ground contact point. It is grounded by the installed ground terminal 50.

한편, 종래에는 테스트를 위해 접속재를 변경해야 하나, 본 발명에서는 바닥의 접지단자와 연결한 절연접속재의 단부를 이용하여 간편하게 테스트를 할 수 있다.Meanwhile, in the related art, the connection material should be changed for the test, but in the present invention, the test can be easily performed using the end of the insulating connection material connected to the ground terminal of the floor.

도면중 미설명 부호 60은 테스터기를 나타낸다.In the figure, reference numeral 60 denotes a tester.

이상에서 설명한 바와 같이, 본 발명에 의한 3-포지션 다회로 개폐기의 접지장치는 개폐기 내부의 3-포지션기구의 접지접점과 도통되며 개폐기 외부로 돌출형성된 접지부싱과, 일단은 상기 접지부싱에 도전부가 노출되지 않게 결합되며 타단은 접지되도록 한 몰드콘 접속재로 구성됨으로써, 개폐기의 본체 일측에 설치한 접지부싱에 체결단부를 몰드콘으로 형성한 접속재를 결합하고, 그 반대편 단부를 바닥의 접지단자와 연결하여, 개폐기 내부의 3-포지션기구의 동작으로 방전되도록 함으로써, 방전동작을 안전하고 간단하게 하며, 상기 접속재를 통해 손쉽게 테스트를 할 수 있도록 한 효과가 있다.As described above, the grounding device of the three-position multi-circuit switch according to the present invention is connected to the ground contact of the three-position mechanism inside the switch, and the ground bushing protrudes out of the switch, and one end of the ground bushing is electrically conductive. Composed so as not to be exposed and the other end is made of a mold cone connecting member to be grounded, by coupling the connecting member formed of the mold cone to the grounding bushing installed on one side of the main body of the switchgear, and connecting the opposite end to the ground terminal of the floor Thus, by discharging by the operation of the three-position mechanism inside the switch, the discharge operation is safe and simple, there is an effect that can be easily tested through the connecting material.

Claims (5)

개폐기 내부의 3-포지션기구의 접지점점과 도통되며 개폐기 외부로 돌출형성된 접지부싱과, 일측단은 상기 접지부싱에 체결되며 타측단은 접지되도록 한 몰드콘 접속재로 구성된 것을 특징으로 하는 부하 개폐기의 접지장치.Grounding of the load switchgear, characterized in that the grounding bushing is in contact with the grounding point of the three-position mechanism inside the switchgear and protruded to the outside of the switchgear, and one end is fastened to the grounding bushing and the other end is grounded with a mold cone connection member Device. 제1항에 있어서, 상기 접지부싱은 내부에 컨덕터를 형성하고, 상기 컨덕터의 단부에 접속단자를 형성하며, 상기 컨덕터의 둘레를 에폭시로 형성한 것을 특징으로 하는 부하 개폐기의 접지장치.The grounding device of claim 1, wherein the ground bushing forms a conductor therein, a connection terminal is formed at an end of the conductor, and a periphery of the conductor is formed of epoxy. 제2항에 있어서, 상기 접속단자는 암나사인 것을 특징으로 하는 부하 개폐기의 접지장치.The grounding device of a load switchgear according to claim 2, wherein the connection terminal is a female screw. 제1항에 있어서, 상기 몰드콘 접속재는 일측단부에 형성한 몰드콘과, 그 몰드콘의 내부에 위치한 케이블동심과, 그 케이블동심의 단부에 압착되며 상기 접지부싱에 결합되는 접속단자와, 상기 몰드콘과 연결되어 형성한 절연 케이블로 구성된 것을 특징으로 하는 부하 개폐기의 접지장치.The mold cone connecting member of claim 1, wherein the mold cone connecting member comprises: a mold cone formed at one end, a cable concentrically located inside the mold cone, a connection terminal crimped to an end of the cable concentric, and coupled to the ground bushing; A grounding device for a load switch, characterized in that consisting of an insulated cable connected to the mold cone. 제4항에 있어서, 상기 접속단자는 숫나사인 것을 특징으로 하는 부하 개폐기의 접지장치.The grounding device of a load switchgear according to claim 4, wherein the connection terminal is a male screw.
KR1019960024482A 1996-06-27 1996-06-27 Earth device of load switch KR100199097B1 (en)

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Publication number Priority date Publication date Assignee Title
CN104682239A (en) * 2015-03-19 2015-06-03 国家电网公司 Detection device for earthing knife-switch of 110kV transformer substation

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KR100429238B1 (en) * 2002-02-21 2004-04-29 엘지산전 주식회사 bushing structure of earthing switch in GIS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104682239A (en) * 2015-03-19 2015-06-03 国家电网公司 Detection device for earthing knife-switch of 110kV transformer substation

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