KR200143981Y1 - Conductor holding device in connector tube for gas insulated switchgear - Google Patents

Conductor holding device in connector tube for gas insulated switchgear Download PDF

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Publication number
KR200143981Y1
KR200143981Y1 KR2019940030325U KR19940030325U KR200143981Y1 KR 200143981 Y1 KR200143981 Y1 KR 200143981Y1 KR 2019940030325 U KR2019940030325 U KR 2019940030325U KR 19940030325 U KR19940030325 U KR 19940030325U KR 200143981 Y1 KR200143981 Y1 KR 200143981Y1
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South Korea
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conductor
support
connection pipe
gas insulated
insulated switchgear
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KR2019940030325U
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Korean (ko)
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KR960018193U (en
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김종훈
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이종수
엘지산전주식회사
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    • 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
    • H02B13/0352—Gas-insulated switchgear for three phase switchgear

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Installation Of Bus-Bars (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

본 고안은 가스절연 개폐기용 접속관의 내부도체를 다른 기기에 바로 접속시킬 수 있도록 함과 동시에 단락사고시 지지체가 전자반발력을 충분히 견딜 수 있도록 한 것이다.The present invention allows the inner conductor of the connection tube for gas insulated switchgear to be directly connected to other equipment, and at the same time, the support can sufficiently withstand the electromagnetic repulsive force in a short circuit accident.

이를 위해, 본 고안은 접속관(1)내의 내부도체(2)의 상간거리를 접소관(1)에 설치되처 내부도처(2)를 지지함과 동시에 다른 기기와 접속관(1)을 구획하는 스페이서(3)의 상간거리와 일치시켜서 된 가스절연 개폐기용 접속관의 도체 지지장치이다.To this end, the present invention is to install the interphase distance of the inner conductor (2) in the connection pipe (1) to the eye contact pipe (1) to support the internal parts (2) and at the same time partitioning the connection pipe (1) with other equipment It is a conductor support apparatus of the connection pipe for gas insulated switchgear which matched the phase distance of the spacer 3.

Description

가스절연개폐기용 접속관의 도체지지장치Conductor support device for connecting pipe for gas insulated switchgear

제1도는 종래의 가스절연개폐기용 접속관을 나타낸 종단면도.1 is a longitudinal sectional view showing a conventional connection pipe for a gas insulated switchgear.

제2도는 제1도의 A-A선 나타낸 단면도.2 is a cross-sectional view taken along the line A-A of FIG.

제3도는 제1도의 스페이서를 나타낸 종단면도.3 is a longitudinal sectional view showing the spacer of FIG.

제4도는 본 고안을 나타낸 종단면도.Figure 4 is a longitudinal cross-sectional view showing the present invention.

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

1 : 접속관 2 : 내부도체1 connection tube 2 inner conductor

3 : 스페이서 4 : 지지애자 어셈블리3 spacer 4 support insulator assembly

6 : 지지체6: support

본 고안은 가스절연 개폐기용 접속관의 도체지지장치에 관한 것으로서, 더욱 상세하게는 접속관내의 도체를 다른 기기에 용이하게 접속시킬 수 있을 뿐만 아니라 단락시 도체지지체가 전자반발력을 충분히 견딜 수 있도록 한 것이다.The present invention relates to a conductor supporting device for a connection tube for a gas insulated switchgear, and more particularly, to facilitate the connection of the conductor in the connection tube to other equipment, and to allow the conductor support to withstand the electromagnetic repulsive force in a short circuit. will be.

일반적으로, 가스절연개폐기(GIS)는 재래식 변전소를 하나의 장치속에 축소시켜 수납하여 변전소의 기능을 수행할 수 있도록 하므로써 설치공간의 효율 및 신뢰성을 향상시킨 것이다.In general, the gas insulated switchgear (GIS) is to reduce the conventional substation in one device to accommodate the substation to perform the function of the substation to improve the efficiency and reliability of the installation space.

또한, 가스절연 개폐기는 차단기, 단락기, 피뢰기, 계전기등의 보호장치가 수납된 각 압력용기내에 절연성능이 우수한 SF6가스가 채워지게 되며, 전력용량과 전압의 크기에 따라 각 장치의 규모가 달라진다.In addition, the gas insulated switchgear is filled with SF 6 gas with excellent insulation performance in each pressure vessel containing protection devices such as breakers, short circuits, lightning arresters, and relays. Different.

종래의 가스절연 개폐기용 접속관은 제1도 내지 제3도에 나타낸 바와 같이, 압력용기인 접속관(1a)내주면에 고정된 상,하부의 베이스(5)에 주철재질(FC30)의 지지체(6a)가 볼트(13)로 체결되고, 상기 지지체(6a)에는 에폭시(Epoxy)재질의 지지애자(8)가 볼트(14)로 체결되며, 상기 지지애자(8)상부에는 내부도체(2)가 관통하는 통공(11)이 형성된 알루미늄 주물의 쉴드(10)가 볼트(9)로 체결되어 쉴드(10)의 통공(11)을 관통하는 내부도체(2)를 지지한다.As shown in FIGS. 1 to 3, the conventional gas insulated switch tube includes a support of cast iron material FC30 on the upper and lower bases 5 fixed to the inner circumferential surface of the tube 1a as a pressure vessel. 6a) is fastened by bolts 13, support insulator 8 of epoxy material is fastened by bolts 14 to the support 6a, and an inner conductor 2 on the support insulator 8 above. The shield 10 of the aluminum casting in which the through hole 11 is formed is fastened by a bolt 9 to support the inner conductor 2 passing through the through hole 11 of the shield 10.

또한, 상기 쉴드(10)의 통공(11)을 관통하는 내부도체(2)의 각 일단은 절곡된 주물도체(12)에 연결되고, 상기 주물도체(12)는 가스절연 개폐기의 일부분에 절연가스의 누출이 있더라도 다른 부분에서는 절연가스가 누출되지 않도록 각 기기사이를 구획함과 동시에 주물도체(12)를 지지하도록 접속관(1a)일단에 설치되는 주행물인 스페이서(spacer)(3)에 내장된 3상의 알루미늄 도체(7)에 접속된다.In addition, each end of the inner conductor 2 penetrating the through hole 11 of the shield 10 is connected to the bent casting conductor 12, the casting conductor 12 is an insulating gas to a part of the gas insulated switchgear Even if there is a leak, the other parts are embedded in the spacer (3), which is a traveling object installed at one end of the connection pipe (1a) to partition the space between the respective devices so as not to leak the insulating gas and to support the casting conductor (12). It is connected to the three-phase aluminum conductor 7.

한편, 170KV, 31.5KA 규격에 적용되는 가스절연 개폐기용 접속관(1a)의 경우 접속관(1a)내에 그립되어 내부도체(2)를 지지하는 좌,우측 지지애자 어셈블리(4)사이의 간격(L)은 685mm이고, 3상을 이루는 내부도체(2)의 상간거리는 제2도에 도시한 바와같이 접속관(1a)하부의 내부도체(2)사이의 상간거리(ℓ1')가 260mm이며, 상부의 내부도체(2)와 하부의 두 내부도체(2)의 중심을 잇는 선과 상간거리(ℓ2')가 225mm이다.Meanwhile, in the case of the connection tube 1a for the gas insulated switchgear applied to the 170KV and 31.5KA standards, the gap between the left and right support insulator assembly 4 that is gripped in the connection tube 1a to support the inner conductor 2 ( L) is 685mm, and the phase-to-phase distance between the connection pipe (1a), the inner conductor of the lower part (2) as shown in the interphase distance second view of the inner conductor (2) forming a three-phase (ℓ 1 ') is 260mm, and The line connecting the center of the upper inner conductor 2 and the lower inner conductor 2 and the distance between the phases (l 2 ') is 225 mm.

또한 주물도체(12)가 접속되는 표준형 3상 스페이서(3)의 3중심의 상간거리는 하부의 두 중심 사이의 상간거리(ℓ1)가 320mm이며, 상부와 하부의 중심사이의 상간거리(ℓ2)는 170mm이다.In addition, a casting conductor 12 is the phase-to-phase distance (ℓ 1) between the standard 3-phase spacer 3 3 the center of the phase-to-phase distance between the lower two centers of the 320mm which is connected, phase-to-phase distance between the top and the bottom center (ℓ 2 ) Is 170 mm.

따라서, 접속관(1a)의 내부도체(2)일측에는 스페이서(3)중심에 접속되는 주물도체(12)선단을 절곡시킨후, 내부도체(2)와 일치시킨 상태에서 용접하여 결합시키게 된다.Therefore, the end of the cast conductor 12 connected to the center of the spacer 3 is bent on one side of the inner conductor 2 of the connection pipe 1a, and then welded and joined in a state where the inner end of the connection tube 1 is matched with the inner conductor 2.

그러나, 이와같은 종래의 가스절연 개폐기용 접속관(1a)은 표준형 3상 스페이서(3)중심에 접속된 주물도체(12)와 내부도체(2)가 접속될 때 주물도체(12)의 선단을 절곡시킨후 내부도체(2)에 용접하여 접속시키므로 인해 작업에 많은 불편함이 따르게 된다.However, such a conventional gas insulated switch connecting tube 1a has a leading end of the casting conductor 12 when the casting conductor 12 and the inner conductor 2 connected to the center of the standard three-phase spacer 3 are connected. After bending, welding and connecting to the inner conductor 2 is accompanied by a lot of inconvenience in the work.

또한, 접속관(1a)내면의 베이스(5)에 고정된 지지체(6a)는 FC30(허용응력 =9.3Kgf/㎟)재질이므로 170KV, 31.5KA급의 경우에 접속관(1a)축방향의 지지애자 어셈블리(4)사이 간격(L)을 685mm이상으로 띄울경우 단락사고가 발생할때 내부도체(2)간에 적용하는 전기적 반발력으로 인해 지지체(6a)에 회전모멘트가 작용하게 되며 이를 견디지 못하고 지지체(6a)가 부러지는 경우가 발생한다.In addition, since the support body 6a fixed to the base 5 of the inner surface of the connection pipe 1a is made of FC30 (allowable stress = 9.3 Kgf / mm 2), it is supported in the axial direction of the connection pipe 1a in the case of 170 KV and 31.5KA class. If the distance (L) between the insulator assemblies (4) is more than 685mm, the rotation moment acts on the support (6a) due to the electrical repulsive force applied between the inner conductors (2) when a short circuit accident occurs, the support (6a) ) Breaks.

따라서 지지체(6a)가 부러지면 내부도체(2)를 지지할 수 없게 되므로 단락사고에 견딜 수 있도록 접속관(1a)의 축방향으로 설치된 지지체 어셈블리(4)사이의 간격 685mm이하가 되도록 설치하게 되며, 이에 따라 접속관(1a)의 축방향길이가 길어질수록 쉴드(10), 지지애자(8) 및 지지체(6a)를 많이 설치하므로 인해 접속관(1a)의 제조비용이 상승하는등 많은 문제점이 있었다.Therefore, when the support body 6a is broken, the inner conductor 2 cannot be supported, so that the space between the support assembly 4 installed in the axial direction of the connection pipe 1a is 685 mm or less to withstand a short circuit accident. Accordingly, the longer the axial length of the connection pipe (1a), the more the shield 10, the support insulator (8) and the support (6a) is installed because of a lot of problems, such as the manufacturing cost of the connection pipe (1a) increases there was.

본 고안은 상기한 제반 문제점을 해결하기 위한 것으로서, 가스절연 개폐기용 접속관내의 내부도체를 다른 기기에 용이하게 접속시킬 수 있도록 할 뿐만 아니라, 단락사고시 전자반발력을 충분히 견딜 수 있도록 한 가스절연 개폐기용 접속관의 도체지지장치를 제공하는데 그 목적이 있다.The present invention is to solve the above problems, the gas insulated switchgear that can not only easily connect the inner conductor in the connection pipe for gas insulated switchgear to other equipment, but also to withstand the electromagnetic repulsive force in the event of a short circuit accident It is an object of the present invention to provide a conductor support device for a connection pipe.

상기한 목적을 달성하기 위해 본 고안은 접속관내의 내부도체의 상간거리를 접속관에 설치되어 내부도체를 지지함과 동시에 다른 기기와 접속관을 구획하는 스페이서의 상간거리와 일치시켜서 된 가스절연 개폐기용 접속관의 도체지지장치이다.In order to achieve the above object, the present invention is a gas insulated switchgear which is made by matching the phase distance of the inner conductor in the connection pipe to the distance between the spacers separating the connection pipe from other equipment while supporting the inner conductor. It is a conductor supporting device for connection pipe.

이하, 본 고안의 일실시예를 첨부도면 제4도를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to FIG. 4.

제4도는 본 고안을 나타낸 종단면도로서, 접속관(1)내의 내부도체(2)의 상간거리를 접속관(1)일단에 내부도체(2)를 지지함과 동시에 다른 기기와 접속관(1)을 구획하는 역할을 하도록 설치되는 스페이서(3)중심의 상간거리와 일치하도록 지지애자 어셈블리(4)를 접속관(1)내주면에 고정된 베이스(5)에 체결한다.4 is a longitudinal sectional view showing the present invention, while supporting the inner conductor 2 at one end of the inner tube 2 of the inner conductor 2 in the connecting tube 1, and at the same time as the other device and the connecting tube 1 The support insulator assembly 4 is fastened to the base 5 fixed to the inner circumferential surface of the connection pipe 1 so as to coincide with the phase distance between the centers of the spacers 3, which are installed to partition the cover plate.

또한, 접속관(1)내주면의 베이스(5)에 고정되는 지지체(6)는 접속관(1)의 축방향으로 설치된 지지체(6)간의 간격(L)을 늘릴 수 있도록 지지체(6)를 단조강으로 제작하여 구성된다.Moreover, the support body 6 fixed to the base 5 of the inner peripheral surface of the connection pipe 1 forges the support body 6 so that the space | interval L between the support bodies 6 installed in the axial direction of the connection pipe 1 can be extended. It is made of steel.

이와같이, 구성된 본 고안은 제3도에 나타낸 바와같이, 가스절연 개폐기용 접속관(1)내의 내부도체(2)간의 상간거리가 접속관(1)일측 또는 양측에 설치되는 스페이서(3)중심의 상간거리와 일치되도록 형성되므로 내부도체(2)는 스페이서(3)에 내장되어 3상을 이루는 알루미늄 도체(7)에 바로 연결된다.As described above, according to the present invention, as shown in FIG. 3, the distance between the inner conductors 2 in the connection pipe 1 for the gas insulated switchgear is the center of the spacer 3 provided on one side or both sides of the connection pipe 1. Since the inner conductor 2 is formed to coincide with the interphase distance, the inner conductor 2 is directly connected to the aluminum conductor 7 forming three phases by being embedded in the spacer 3.

이를 170KV급에 사용되는 규격의 접속관(1)을 예를 들어 상세히 설명하면 다음과 같다.The connection pipe 1 of the standard used for the 170KV class will be described in detail as follows.

접속관(1)내에 지지애자(8)에 볼트(9)로 체결된 쉴드(10)의 통공(11)을 관통하는 내부도체(2)의 상간거리(ℓ1,ℓ2)를 하부의 내부도체(2)간의 상간거리(ℓ1)를 320mm로 변경시키고, 상부의 내부도체(2)와 하부의 두 내부도체(2)와의 상간거리(ℓ2)를 170mm로 변경시킨다.The phase distance (l 1 , l 2 ) of the inner conductor 2 passing through the through hole 11 of the shield 10 fastened to the support insulator 8 with the bolt 9 in the connection pipe 1 is located inside the lower part. and changing the phase distance (ℓ 1) between the conductors (2) by 320mm, thereby changing the phase distance (ℓ 2) between the inner conductor of the upper part (2) of the two inner conductor and the bottom (2) by 170mm.

이때, 상간거리는 접속관(1)내주면에 내부도체(2)를 지지하도록 설치되는 지지애자 어셈블리(4)의 베이스(5) 고정위치를 적절히 조절하여 지지체(6)를 베이스(5)에 고정시키므로써 원하는 상,하부 상간거리를 이루도록 할 수 있다.At this time, the phase distance is fixed to the base 5 by adjusting the position of the base (5) of the support insulator assembly (4) that is installed to support the inner conductor (2) on the inner peripheral surface of the connection pipe (1) You can achieve the desired distance between the upper and lower phases.

또한, 접속관(1)의 축방향으로의 지지체 어셈블리(4) 설치간격을 800mm까지 연장시킬 수 있도록 지지체(6)의 재질을 S53C의 단조강(허용응력 =26.5Kgf/㎟)으로 변경하여 제작하게 된다.In addition, the material of the support body 6 is changed to forged steel of S53C (allowable stress = 26.5Kgf / mm 2) so as to extend the installation interval of the support assembly 4 in the axial direction of the connecting pipe 1 to 800 mm. Done.

한편, 접속관(1)은 170KV급 이외에 362KV급, 72.5KV급등 용량에 따라 접속관(1), 지지애자 어셈블리(4) 및 스페이서(3)의 크기와 상간거리 각각 달라지는데 이때에도 역시 내부도체(2)의 상간거리를 각 규격에 따른 스페이서(3)의 상간거리에 맞춰 변경하므로써 내부도체(2)를 다른기기와 접속되도록 스페이서(3)에 내장되어 3상()을 이루는 알루미늄 도체(7)에 바로 접속시킬 수 있게 된다.On the other hand, the connection pipe (1) in addition to the 170KV class 362KV class, 72.5KV class capacity, such as the connection tube (1), support insulator assembly (4) and the spacer (3), respectively, and the distance between the phases and also the internal conductor ( By changing the phase distance of 2) according to the phase distance of the spacer 3 according to each standard, the internal conductor 2 is embedded in the spacer 3 so as to be connected with other equipment, It is possible to directly connect to the aluminum conductor (7) forming a).

따라서, 내부도체(2)와 스페이서(3)의 3상()중심을 접속시키기 위해 주물도체(12)를 절곡시켜 용접하는 작업이 생략되므로 조립작업이 용이하며, 지지애자 어셈블리(4)를 지지하는 지지체(6)의 강도가 증하하여 접속관(1)내에 설치되는 지지애자 어셈블리(4)의 갯수를 줄여 제조비용을 줄일 수 있다.Therefore, the three phases of the inner conductor 2 and the spacer 3 ( Since the work of bending and welding the casting conductor 12 in order to connect the center is omitted, the assembling work is easy, and the strength of the support 6 supporting the support insulator assembly 4 decreases, so that the connection pipe 1 The manufacturing cost can be reduced by reducing the number of support insulator assemblies 4 to be installed.

뿐만 아니라, 지지체(6)의 강도가 강화되므로써 단락사고시 내부도체(2)간에 적용하는 전기적 반발력에 의해 지지체(6)가 부러지는 현상을 방지할 수 있게 된다.In addition, since the strength of the support 6 is strengthened, it is possible to prevent a phenomenon in which the support 6 is broken by an electric repulsive force applied between the inner conductors 2 during a short circuit accident.

이상에서와 같이 본 고안은 가스절연 개폐기용 접속관(1)의 내부도체(2)의 상간거리를 스페이서(3)의 상간거리와 일치하도록 하고 지지애자 어셈블리(4)를 지지하는 지지체(6)의 강도를 향상시켜 접속관(1)의 조립을 용이하게할 수 있을 뿐만 아니라, 단락사고시 지지체(6)가 내부도체(2)의 전기적 반발력을 견딜 수 있도록 하므로써 가스 절연개폐기의 신뢰성을 향상시킨 매우 유용한 고안이다.As described above, the present invention supports the support 6 for supporting the support insulator assembly 4 and making the phase distance of the inner conductor 2 of the connection pipe 1 for the gas insulated switchgear coincide with the phase distance of the spacer 3. In addition to facilitating the assembly of the connection pipe 1 by improving the strength of the circuit, and in the event of a short circuit, the support 6 can withstand the electrical repulsive force of the inner conductor 2, thereby improving the reliability of the gas insulation switch. It is a useful design.

Claims (3)

접속관(1)내의 내부도체(2)의 상간거리를 접속관(1)에 설치되어 내부도체(2)를 지지함과 동시에 다른 기기와 접속관(1)을 구획하는 스페이서(3)의 상간거리와 일치시켜서 된 것을 특징으로 하는 가스절연 개폐기용 접속관의 도체 지지장치.The phase distance between the inner conductors 2 in the connection pipe 1 is provided in the connection pipe 1 to support the internal conductors 2 and at the same time between the spacer 3 which partitions the connection pipe 1 with other equipment. A conductor support device for a connection pipe for a gas insulated switchgear, which is made to match the distance. 제1항에 있어서, 상기 접속관(1)내에 하부의 내부도체(2)간의 상간거리를 320mm로 하고, 상부의 내부도체(2)와 하부의 내부도체(2)간의 상간거리를 170mm로 하여 170KV급에 사용할 수 있도록 한 가스절연 개폐기용 접속관의 도체 지지장치.The phase distance between the lower inner conductor 2 in the connection pipe 1 is 320 mm, and the upper distance between the upper inner conductor 2 and the lower inner conductor 2 is 170 mm. Conductor support device for connecting pipe for gas insulated switchgear which can be used for 170KV class. 제1항에 있어서, 상기 접속관(1)에 고정되는 지지애자 어셈블리(4)를 지지하는 지지체(6)를 S35C단조강으로 제작하여 170KV급에 사용할 수 있도록 한 가스절연 개폐기용 접속관의 도체 지지장치.The conductor of a connection tube for gas insulated switchgear according to claim 1, wherein the support body (6) supporting the support insulator assembly (4) fixed to the connection tube (1) is made of S35C forged steel to be used for a 170 KV class. Support device.
KR2019940030325U 1994-11-16 1994-11-16 Conductor holding device in connector tube for gas insulated switchgear KR200143981Y1 (en)

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