KR20030063498A - Structure for unifying earthing switch units of gas insulated switchgear - Google Patents

Structure for unifying earthing switch units of gas insulated switchgear Download PDF

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Publication number
KR20030063498A
KR20030063498A KR1020020003642A KR20020003642A KR20030063498A KR 20030063498 A KR20030063498 A KR 20030063498A KR 1020020003642 A KR1020020003642 A KR 1020020003642A KR 20020003642 A KR20020003642 A KR 20020003642A KR 20030063498 A KR20030063498 A KR 20030063498A
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South Korea
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unit
assembly
linear
conductor
bus
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KR1020020003642A
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Korean (ko)
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최희준
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엘지산전 주식회사
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Priority to KR1020020003642A priority Critical patent/KR20030063498A/en
Publication of KR20030063498A publication Critical patent/KR20030063498A/en

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    • 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
    • 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H02B5/06Non-enclosed substations; Substations with enclosed and non-enclosed equipment gas-insulated

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

Abstract

PURPOSE: A structure for unifying earthing switch units of gas insulated switchgear is provided to reduce a total size and a manufacturing cost by installing a linear ES(Earthing Switch) and a bus DS/ES unit within one insulating tank. CONSTITUTION: A gas insulator switchgear includes a linear ES unit and a bus DS/ES unit. The linear ES unit is used for connecting a line to an earth portion by the first ES assembly(13) installed within an insulating tank(20) when an abnormal voltage is generated or a mending process is performed. The bus DS/ES is connected to the linear ES unit through a conductor(22) in order to connect a disconnecting switch(23) to the earth portion by the second ES assembly(24). The linear ES unit is included within the bus DS/ES unit since the first ES assembly of the linear ES unit is connected to a lower portion of the conductor of the bus DS/ES unit in order to connect the line to the earth portion.

Description

가스절연개폐장치의 ES유니트 일체화구조{structure for unifying Earthing Switch units of Gas Insulated Switchgear}Structure for unifying Earthing Switch units of Gas Insulated Switchgear

본 발명은 가스절연개폐장치(GIS; Gas Insulator Switchgear)에 관한 것으로서, 좀 더 상세히 기술하면 가스절연개폐장치를 구성하는 직선 ES유니트와 모선 DS/ES유니트를 일체화하여서 된 것이다.The present invention relates to a gas insulator switchgear (GIS), which is described in more detail by integrating a straight line ES unit and a bus DS / ES unit constituting the gas insulator switchgear.

일반적으로 가스절연개폐장치는 옥, 내외 변전소용으로 사용 조건에 따라 정상상태의 개폐뿐만 아니라, 사고 또는 단락 등의 이상상태에 있어서도 선로를 안전하게 개폐하여 전력 계통을 적절히 보호하는 장치이다.In general, the gas insulated switchgear is a device that protects the power system appropriately by safely opening and closing a line even in an abnormal state such as an accident or a short circuit as well as opening and closing of a normal state according to a use condition for an indoor and outdoor substation.

상기 가스절연개폐장치는 통상 SF6가스로 충진밀폐된 철재용기(Enclosure) 내에 단로기(DS; Disconnecting Switch), 접지개폐기(ES; Earthing Switch), 차단기(CB; Circuit Breaker) 등의 개폐설비와 모선을 내장시킨 개폐장치이다.The gas insulated switch is a switchgear and busbar such as a disconnecting switch (DS), an earthing switch (ES), and a circuit breaker (CB) in a steel container (Enclosure) filled with SF 6 gas. It is a built-in switchgear.

통상 상기 가스절연개폐장치는 금속제 밀폐용기(Tank) 내에 절연성능과 소호기능이 우수한 SF6가스를 절연매체로 사용하여 도체와 각종 보호기기들을 수납시켜 신뢰성을 향상시킨 수변전 설비로서 각종 기기 및 접속관들을 유니트화시켜 조합함으로써 전체적인 시스템을 구축한다.In general, the gas insulated switchgear is a water substation facility in which a conductor and various protective devices are improved by using SF 6 gas having excellent insulation performance and extinguishing function as an insulating medium in a metal sealed container (Tank). Unitize pipes together to build a complete system.

첨부된 도 1은 종래 가스절연개폐장치의 요부 구성도로서, 직선 ES유니트 및 모선 DS/ES유니트의 결합상태를 보인 정면도 및 측면도이다.1 is a front view and a side view showing a main configuration of a conventional gas insulated switchgear, a coupling state of a linear ES unit and a busbar DS / ES unit.

상기 도면을 참조할 때, 먼저 직선 ES유니트(1)는 SF6가 충진되는 절연탱크(10)의 일측에 스페이서(11)가 결합되고, 상기 스페이서에 의해 복수개의 도체(12)가 절연탱크(10) 내부에서 수평한 상태로 취부되는데, 이 때 상기 도체의 상측 공간부에는 제1 ES어셈블리(13)가 접속된 형상을 갖는다.Referring to the drawings, firstly, the straight ES unit 1 has a spacer 11 coupled to one side of the insulating tank 10 filled with SF 6 , and the plurality of conductors 12 are connected to the insulating tank by the spacer. 10) It is mounted in a horizontal state inside, in which the first ES assembly 13 is connected to the upper space portion of the conductor.

또한 상기 직선 ES유니트(1)에 결합된 모선 DS/ES유니트(2)는 절연탱크(20)일측에 구비된 스페이서(21)에 복수개의 도체(22)가 수평한 상태로 설치되고, 상기 도체(22)의 상부에는 단로부(23)가 수직한 형태로 설치되는데, 이 때 상기 단로부의 일측에는 접지를 위한 제2 ES어셈블리(24)가 접속됨과 함께 상기 단로부(23)를 단로조작하기 위한 조작기(25)가 설치되어 있다.In addition, the busbar DS / ES unit 2 coupled to the straight ES unit 1 is provided with a plurality of conductors 22 in a horizontal state in a spacer 21 provided on one side of the insulated tank 20, and the conductor In the upper portion of the 22, the disconnecting unit 23 is installed in a vertical form, at which time the second ES assembly 24 for grounding is connected to one side of the disconnecting unit, and the disconnecting unit 23 is disconnected. Manipulator 25 is provided.

이러한 구성요소의 작용을 간략하게 살펴보면 다음과 같다.The operation of these components is briefly described as follows.

먼저, 평상시에는 상기 직선 ES유니트(1)의 제1 ES어셈블리(13)가 개로된 상태인 데, 작업자가 보수 및 점검 등을 실시하고자 할 때에는 상기 제1 ES어셈블리(13)를 조작함에 따라 제1 ES어셈블리가 폐로상태로 전환되는데, 이 때에는 상기 제1 ES어셈블리(13)에 의해 도체(12)에 남아있던 잔류전류가 모두 접지되므로 이와 같이 기기의 보수점검 전에는 반드시 감전 등의 사고를 일으킬 수 있는 잔류전류를 모두 제거하는 작업을 선행하게 된다.First, the first ES assembly 13 of the straight ES unit 1 is normally opened. When a worker wants to perform maintenance and inspection, the first ES assembly 13 is operated. 1 The ES assembly is switched to the closed state. At this time, since the residual current remaining in the conductor 12 is grounded by the first ES assembly 13, an electric shock or the like may occur before maintenance of the device. The work of removing all residual currents is preceded.

이와 마찬가지로 모선 DS/ES유니트(2)의 단로부(23)에 남아있던 잔류전류 또한 작업자가 제2 ES어셈블리(24)를 조작함에 따라 상기 제2 ES어셈블리를 폐로상태로 전환시키고, 이에 따라 상기 단로부(23)에 남아있던 잔류전류가 모두 제거됨은 이해 가능하다.Similarly, the residual current remaining in the disconnection section 23 of the busbar DS / ES unit 2 also switches the second ES assembly to the closed state as the operator manipulates the second ES assembly 24. It is understood that all of the residual current remaining in the disconnecting unit 23 is removed.

그러므로 상기한 바와 같이 종래 가스절연개폐장치는 직선 ES유니트의 도체에 제1 ES어셈블리가 설치되어 있음에 따라 필요시 작업자가 상기 직선 ES유니트의 잔류전류를 접지하고, 한편 상기 직선 ES유니트와 결합되는 모선 DS/ES유니트의 단로부에는 제2 ES어셈블리가 별도로 설치되어 있음에 따라 필요시 상기 단로부의 잔류전류를 접지하도록 양 유니트가 서로 분리된 구조로 되어 있었다.Therefore, as described above, in the conventional gas insulation switchgear, since the first ES assembly is installed in the conductor of the linear ES unit, the worker grounds the residual current of the linear ES unit if necessary, and is coupled with the linear ES unit. As the second ES assembly is separately installed in the disconnection unit of the bus DS / ES unit, both units are separated from each other so as to ground the residual current of the disconnection unit if necessary.

이에 따라 상기 가스절연개폐장치에는 직선 ES유니트와 모선 DS/ES유니트가 별도로 구비되어야만 하기 때문에 상기 가스절연개폐장치가 차지하는 용적 및 용지를 줄이는 데 한계가 있을 뿐만 아니라, 기기의 보수점검시 각각의 유니트를 별도로 점검해야만 했으므로 기기의 관리사항이 많이 발생할 뿐만 아니라, 기기의 생산단가도 상승하게 되는 등 여러 가지 문제점이 있었다.Accordingly, since the gas insulated switchgear must be provided separately with the straight ES unit and the busbar DS / ES unit, there is a limit in reducing the volume and the paper occupied by the gas insulated switchgear, and each unit when checking the equipment. Since it was necessary to check separately, there were many problems such as not only the management of the equipment occurred a lot but also the production cost of the equipment increased.

본 발명은 상기한 종래의 문제점을 해결하고자 안출한 것으로, 종래 가스절연개폐장치에서 각각 별도로 구비되었던 직선 ES유니트와 모선 DS/ES유니트를 하나의 절연탱크 내에 포함되도록 일체화하는 데에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object thereof is to integrate the straight ES unit and the busbar DS / ES unit, which are separately provided in the conventional gas insulation switchgear, to be included in one insulation tank. .

도 1은 종래 가스절연개폐장치의 요부 구성도로서, 직선 ES유니트 및 모선 DS/ES유니트의 결합상태를 보인 정면도 및 측면도1 is a main configuration diagram of a conventional gas insulated switchgear, a front view and a side view showing a coupling state of a linear ES unit and a busbar DS / ES unit.

도 2는 본 발명 가스절연개폐장치의 요부 구성도로서, 직선 ES유니트 및 모선 DS/ES유니트가 일체화된 상태를 보인 정면도 및 측면도2 is a main configuration diagram of the gas insulated switchgear according to the present invention, a front view and a side view showing a state in which a straight ES unit and a busbar DS / ES unit are integrated.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

1 : 직선 ES유니트 10: 절연탱크1: straight ES unit 10: insulated tank

11: 스페이서 12: 도체11: spacer 12: conductor

13: 제1 ES어셈블리 2 : 모선 DS/ES유니트13: 1st ES Assembly 2: Mothership DS / ES Unit

20: 절연탱크 21: 스페이서20: insulated tank 21: spacer

22: 도체 23: 단로부22: conductor 23: disconnection part

24: 제2 ES어셈블리24: 2nd ES Assembly

상기 목적을 달성하기 위한 본 발명에 따르면, 이상전압 발생 및 사고 기타 보수점검시 절연탱크 내에 구비된 제1 ES어셈블리에 의해 선로를 접지하는 직선 ES유니트와, 상기 직선 ES유니트와 도체로 연결되어 상기 도체의 상부에 접속된 단로부가 제2 ES어셈블리에 의해 상기 단로부의 잔류전류를 접지하는 모선 DS/ES유니트를 포함하여서 된 가스절연개폐장치에 있어서, 상기 직선 ES유니트의 제1 ES어셈블리가 모선 DS/ES유니트의 도체 하부에 접속됨에 따라 선로의 접지가 가능하고, 이에 따라 상기 직선 ES유니트가 별도로 구비될 필요없이 모선 DS/ES유니트 내에 포함된 것을 특징으로 하는 가스절연개폐장치의 ES유니트 일체화구조가 제공된다.According to the present invention for achieving the above object, a straight ES unit for grounding the line by the first ES assembly provided in the insulating tank during the occurrence of abnormal voltage and accidents and maintenance, connected to the straight ES unit and the conductor In the gas insulated switchgear, wherein the disconnecting unit connected to the upper part of the conductor comprises a busbar DS / ES unit for grounding the residual current of the disconnecting unit by a second ES assembly, wherein the first ES assembly of the straight ES unit is the busbar DS. The grounding of the line is possible as it is connected to the lower portion of the conductor of the / ES unit, and thus the ES unit integrated structure of the gas insulated switchgear, which is included in the bus DS / ES unit without requiring the linear ES unit to be separately provided. Is provided.

이하 본 발명을 첨부된 도 2를 참고로 하여 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIG. 2.

첨부된 도 2는 도 2는 본 발명 가스절연개폐장치의 요부 구성도로서, 직선 ES유니트 및 모선 DS/ES유니트가 일체화된 상태를 보인 정면도 및 측면도로서, 본 발명의 구성요소 중 종래의 구성요소와 동일한 구성에 있어서는 그 설명을 생략하기로 하고, 다만 도면상에는 종래에서 부여한 번호를 그대로 부여하기로 한다.2 is a front view and a side view of a main configuration diagram of the gas insulated switchgear according to the present invention, in which a straight ES unit and a busbar DS / ES unit are integrated with each other. In the same configuration as that of the element, the description thereof will be omitted. However, in the drawing, the conventionally assigned number will be given as it is.

이하 본 발명에 따른 장치의 요부 구성을 구체적으로 설명하면, 모선 DS/ES유니트(2)의 외관을 형성하는 하나의 절연탱크(20) 내에는 스페이서(21)에 의해 취부된 복수개의 도체(22)가 수평한 상태로 구비되는데, 이 때 상기 도체의 우측 일단에는 제1 ES어셈블리(13)가 접속된 상태로서 상기 제1 ES어셈블리가 도체(22)의 하방으로 위치된다.Hereinafter, the main configuration of the apparatus according to the present invention will be described in detail. In one insulating tank 20 forming the outer appearance of the busbar DS / ES unit 2, a plurality of conductors 22 mounted by spacers 21 are provided. ) Is provided in a horizontal state, in which the first ES assembly 13 is connected to the right end of the conductor, and the first ES assembly is positioned below the conductor 22.

또한 상기 도체(22)의 상부에는 단로부(23) 및 상기 단로부를 조작하기 위한 조작기(25)가 설치되는데, 이는 종래에서 설명한 구조와 동일하므로 생략하기로 한다.In addition, the upper part of the conductor 22 is provided with a disconnection unit 23 and a manipulator 25 for operating the disconnection unit, which will be omitted because it is the same as the structure described in the prior art.

이와 같이 구성된 본 발명의 작용을 설명하면, 먼저 평시에는 상기 모선 DS/ES유니트(2)의 절연탱크(20) 내에 포함된 제1 ES어셈블리(13) 및 제2 ES어셈블리(24)가 모두 개로상태이나, 작업자가 기기의 보수점검을 실시하고자 할 때에는 상기 보수점검에 앞서 작업자가 상기 제1 ES어셈블리(13) 및 제2 ES어셈블리(24)를 동시에 조작하여 폐로상태로 전환시키면 된다.Referring to the operation of the present invention configured as described above, first of all, the first ES assembly 13 and the second ES assembly 24 included in the insulating tank 20 of the bus DS / ES unit 2 are opened. When the operator wants to perform maintenance on the device, the operator may operate the first ES assembly 13 and the second ES assembly 24 at the same time and switch to the closed state prior to the maintenance inspection.

따라서, 이 때에는 상기 제1 ES어셈블리(13)에 의해 도체(22)의 잔류전류가 제거됨과 동시에 제2 ES어셈블리(24)에 의해 단로부(23)의 잔류전류가 제거됨으로써 접지작업이 신속하게 수행되어진다.Therefore, at this time, the residual current of the conductor 22 is removed by the first ES assembly 13 and the residual current of the disconnecting unit 23 is removed by the second ES assembly 24, so that the grounding operation can be quickly performed. Is performed.

본 발명 가스절연개폐장치의 접지개폐기 유니트 일체화구조 접지개폐기는 직선 ES유니트와 모선 DS/ES유니트를 하나의 절연탱크 내에 일체화시킴으로써 전체 기기가 차지하는 용적을 최소화시킬 수 있을 뿐만 아니라, 구성부품의 감소로 기기의 생산단가를 대폭 절감할 수 있는 이점이 있다.The structure of the ground switch unit integrated structure of the gas insulated switchgear of the present invention is not only to minimize the volume occupied by the entire device by integrating the straight ES unit and busbar DS / ES unit in one insulation tank, There is an advantage that can significantly reduce the production cost of the device.

Claims (1)

이상전압 발생 및 사고 기타 보수점검시 절연탱크 내에 구비된 제1 ES어셈블리에 의해 선로를 접지하는 직선 ES유니트와, 상기 직선 ES유니트와 도체로 연결되어 상기 도체의 상부에 접속된 단로부가 제2 ES어셈블리에 의해 상기 단로부의 잔류전류를 접지하는 모선 DS/ES유니트를 포함하여서 된 가스절연개폐장치에 있어서,In case of abnormal voltage occurrence and other maintenance, a straight ES unit that grounds the line by the first ES assembly provided in the insulation tank, and a disconnection part connected to the upper ES unit by a conductor and connected to the upper part of the conductor are connected to the second ES. In the gas insulated switchgear comprising an busbar DS / ES unit for grounding the residual current of the disconnecting unit by the assembly, 상기 직선 ES유니트의 제1 ES어셈블리가 모선 DS/ES유니트의 도체 하부에 접속됨에 따라 선로의 접지가 가능하고, 이에 따라 상기 직선 ES유니트가 별도로 구비될 필요없이 모선 DS/ES유니트 내에 포함된 것을 특징으로 하는 가스절연개폐장치의 ES유니트 일체화구조.As the first ES assembly of the straight ES unit is connected to the lower part of the conductor of the bus DS / ES unit, grounding of the line is possible, and thus, the straight ES unit is included in the bus DS / ES unit without having to be separately provided. ES unit integrated structure of the gas insulated switchgear.
KR1020020003642A 2002-01-22 2002-01-22 Structure for unifying earthing switch units of gas insulated switchgear KR20030063498A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101460842B1 (en) * 2011-03-15 2014-11-11 현대중공업 주식회사 Maintenance method for gas insulated switchgear
CN111193218A (en) * 2019-12-20 2020-05-22 河南平高电气股份有限公司 Three-phase common-box bus turning structure and GIS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101460842B1 (en) * 2011-03-15 2014-11-11 현대중공업 주식회사 Maintenance method for gas insulated switchgear
CN111193218A (en) * 2019-12-20 2020-05-22 河南平高电气股份有限公司 Three-phase common-box bus turning structure and GIS
CN111193218B (en) * 2019-12-20 2021-05-11 河南平高电气股份有限公司 Three-phase common-box bus turning structure and GIS

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