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JP4088376B2 - Instrument transformer transportation device and method - Google Patents
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JP4088376B2 - Instrument transformer transportation device and method - Google Patents

Instrument transformer transportation device and method Download PDF

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Publication number
JP4088376B2
JP4088376B2 JP31431298A JP31431298A JP4088376B2 JP 4088376 B2 JP4088376 B2 JP 4088376B2 JP 31431298 A JP31431298 A JP 31431298A JP 31431298 A JP31431298 A JP 31431298A JP 4088376 B2 JP4088376 B2 JP 4088376B2
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JP
Japan
Prior art keywords
instrument transformer
cylindrical container
transformer
insulating spacer
ceiling cover
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP31431298A
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Japanese (ja)
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JP2000152439A (en
Inventor
佳一 津々楽
和彦 高橋
順三 木田
実 矢吹
真一 岩本
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.)
Hitachi Ltd
Takaoka Toko Co Ltd
Original Assignee
Hitachi Ltd
Toko Electric Corp
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
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Priority to JP31431298A priority Critical patent/JP4088376B2/en
Publication of JP2000152439A publication Critical patent/JP2000152439A/en
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Publication of JP4088376B2 publication Critical patent/JP4088376B2/en
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Expired - Lifetime legal-status Critical Current

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  • Patch Boards (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、計器用変圧器の輸送装置及び方法に係わり、特に信頼性の向上を図るのに好適な計器用変圧器の輸送装置及び輸送方法に関する。
【0002】
【従来の技術】
計器用変圧器は、いくつかの密閉容器内に遮断器,断路器,接地開閉器等を互いに電気的に接続する通電導体を収納し絶縁性ガスを充填してなり、縮小化や絶縁性能及び安全性に優れているガス絶縁開閉装置の構成機器の一つとして広く設置されている。
【0003】
このような計器用変圧器において、従来の機器は、特開平10−75513 号公報,特開昭60−187217号公報,特開昭60−183908号公報に記載のように、接続導体,接続導体に接続された断路器,断路器に接続されたケーブルヘッド、断路器とケーブルヘッドとの間に一端が接続された避雷器、三相のうちの一相に設けられ断路器とケーブルヘッドとの間に一端が接続された単相電圧変成器を収納した線路側ユニットに組み込まれている。
【0004】
【発明が解決しようとする課題】
上記したように、従来の計器用変圧器は、線路側ユニットの他の複数の機器と共に一つの密閉容器内に収納されているため、計器用変圧器は線路側ユニットに組み込む際に大気中に開放される。ところが、大気中に開放する時間に比例して計器用変圧器の巻線に水分や塵埃等が付着することにより信頼性が低下してしまうという問題があった。
【0005】
本発明の第1の目的は、計器用変圧器を組立てた後、線路側ユニットに組み込むまでの間、計器用変圧器を大気に曝さない計器用変圧器の輸送装置を提供することにある。
【0006】
本発明の第2の目的は、計器用変圧器の組立てから計器用変圧器の絶縁試験を実施でき、輸送用タンクから計器用変圧器を容易に取り出すことのできる計器用変圧器の輸送方法を提供することにある。
【0007】
【課題を解決するための手段】
上記第1の目的を達成するために、本発明の計器用変圧器の輸送装置は、円筒容器と、該円筒容器の下部に設けられた絶縁スペーサ及び脚部と、前記円筒容器の上部に付設されたフランジと、該フランジに取付けられて、計器用変圧器に設けられている天井カバーと、前記円筒容器内を真空引きし、絶縁性ガスを充填するためのガスバルブとを備え、前記円筒容器と絶縁スペーサ及び天井カバーとで密閉空間を形成し、この密封空間内に、前記ガスバルブにより絶縁性ガスを充填すると共に前記計器用変圧器を内蔵し、かつ前記天井カバーは、前記円筒容器から前記計器用変圧器と共に取り出し可能に前記フランジに取付けられていることを特徴とする。
【0008】
又、上記第2の目的を達成するために、本発明の計器用変圧器の輸送方法は、計器用変圧器を、請求項1,2、又は3に記載の計器用変圧器の輸送装置に収納し、前記計器用変圧器の一次巻線と前記絶縁スペーサに埋め込まれた導体を電気的に接続し、前記計器用変圧器の二次巻線と前記天井カバーに設けられた端子部を電気的に接続して組立てて前記計器用変圧器の絶縁試験を行った後に、その状態で輸送することを特徴とする。
【0009】
【発明の実施の形態】
本発明の一実施例を図1,図2を用いて説明する。図1に示すように、本実施例の線路側ユニット1の容器は、垂直方向の円筒容器部分2aと、この円筒容器部分2aの上部で水平方向に形成された円筒容器部分2bで構成されている。円筒容器部分2bの端部には絶縁スペーサ3が設けられており、円筒容器部分2aの上端部にはフランジ部が設けられ、このフランジ部には、円形の穴部5を有する天板4が取付けられている。天板4の穴部5には、計器用変圧器6に設けられた天板カバー7が取付けられている。天板カバー7には、端子部8が設けられている。計器用変圧器6は、一次巻線を内蔵したシールド部10と鉄心部9及び二次巻線から電圧を取り出すための端子部11で構成されている。
【0010】
この計器用変圧器6輸送する際は、輸送装置内に密封されて輸送され、線路側ユニット1を組立てる時に、線路側ユニット1の内部を組立てた後、輸送用装置から取り出して、図1に示すように、天板4に設けられた穴部5から挿入して、天板カバー7を天板4に取付けることにより組立てられる。なお、計器用変圧器を挿入する穴部5の位置は、計器用変圧器をガス絶縁開閉装置のタンク内に設置する位置により変更できる。
【0011】
輸送装置の輸送用タンク20は、図2に示すように円筒容器21及び下部に設けられた絶縁スペーサ22,脚部23により構成されている。円筒容器21には、輸送用タンク20を吊り上げるための吊り耳24及びガスバルブ25,吸着剤を入れるための収納部26が取付けられている。絶縁スペーサ22に埋め込まれた導体27とシールド部28の下端に設けられている端子29とは、ばね30により電気的に接続されている。絶縁スペーサ22の下方には脚部23が取付けられており、地上に載置できるようになっている。円筒容器21の上端にはフランジ31が設けられており、フランジ31に天板カバー32がシール材を介してボルトで固定されている。フランジ31には保護カバー33が取付けられており、端子部34を保護している。輸送用タンク20内に計器用変圧器6を組み込んだ後、タンク内を真空引きし、絶縁性ガスを充填するためにガスバルブ25を設けている。
【0012】
輸送用タンク20を上記のように構成しているので、計器用変圧器6は輸送時及び保管時に大気中に曝されることがなく、絶縁性能の低下を招く水分及び塵埃が計器用変圧器6の巻線内に浸入するのを防ぐことができる。
【0013】
また、計器用変圧器6を線路側ユニット1に組み込むときは、天板4に設けられた穴部5から挿入して、天板カバー32を取付ければ真空引きできるため、組立時間が短縮され、水分や塵埃の浸入を少なくできるので、計器用変圧器の信頼性を向上できる。
【0014】
また、絶縁スペーサ22を設けて外部に引き出された導体27と計器用変圧器6の端子29とをばね30により電気的に接続しており、ガスバルブ25により輸送用タンク20内のガス圧力を所望の圧力に設定できるため、計器用変圧器6の絶縁耐圧試験を適切な時期に行うことができる。
【0015】
【発明の効果】
以上のように本発明によれば、計器用変圧器を輸送タンク内に組み込んでから絶縁耐圧試験を経て線路側ユニットに組み込むまでの間、大気中に曝されることなく輸送及び保管ができるため計器用変圧器の信頼性の向上を図ることができる。また、計器用変圧器を線路側ユニットに組み込む時間を短縮することができるので、絶縁性能の低下の原因となる水分や塵埃の浸入を少なくできるので、計器用変圧器の信頼性を向上できる。
【図面の簡単な説明】
【図1】本発明の一実施例である線路側ユニットの部分縦断面図である。
【図2】本実施例の輸送装置の構成を示す正面図である。
【符号の説明】
1…線路側ユニット、2…円筒容器部分、3,22…絶縁スペーサ、4…天板、5…穴部、6…計器用変圧器、7…天板カバー、8,11,34…端子部、
10,28…シールド部、20…輸送用タンク、21…円筒容器、23…脚部、
24…吊り耳、25…ガスバルブ、26…収納部、27…導体、29…端子、
30…ばね、31…フランジ、32…天板カバー、33…保護カバー。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an instrument transformer transport apparatus and method, and more particularly to an instrument transformer transport apparatus and method suitable for improving reliability.
[0002]
[Prior art]
Instrument transformers are composed of several airtight containers containing energized conductors that electrically connect circuit breakers, disconnectors, earthing switches, etc., and filled with insulating gas. It is widely installed as one of the components of gas-insulated switchgear with excellent safety.
[0003]
In such an instrument transformer, conventional devices include a connection conductor and a connection conductor as described in JP-A-10-75513, JP-A-60-187217, JP-A-60-183908. Disconnector connected to, cable head connected to disconnector, lightning arrester connected at one end between disconnector and cable head, between disconnector and cable head provided in one of three phases It is incorporated in a line-side unit that houses a single-phase voltage transformer that is connected to one end.
[0004]
[Problems to be solved by the invention]
As described above, a conventional instrument transformer is housed in a single sealed container together with a plurality of other devices on the line side unit. Opened. However, there has been a problem that reliability is lowered due to adhesion of moisture, dust, or the like to the windings of the instrument transformer in proportion to the time of release to the atmosphere.
[0005]
A first object of the present invention is to provide a transport device for an instrument transformer in which the instrument transformer is not exposed to the atmosphere after the instrument transformer is assembled and then assembled into the line side unit.
[0006]
The second object of the present invention is to provide a method of transporting an instrument transformer that can perform an insulation test of the instrument transformer from the assembly of the instrument transformer and can easily take out the instrument transformer from the transport tank. It is to provide.
[0007]
[Means for Solving the Problems]
In order to achieve the first object, a transport device for an instrument transformer according to the present invention includes a cylindrical container, an insulating spacer and a leg provided at a lower part of the cylindrical container, and an upper part of the cylindrical container. A cylindrical cover, a ceiling cover attached to the flange and provided in an instrument transformer, and a gas valve for evacuating the inside of the cylindrical container and filling with an insulating gas. And an insulating spacer and a ceiling cover to form a sealed space, the insulating gas is filled with the gas valve in the sealed space, and the instrument transformer is built in, and the ceiling cover is removed from the cylindrical container. characterized in that attached to Shi capable the flange Eject with potential transformer.
[0008]
In order to achieve the second object, a method for transporting an instrument transformer according to the present invention is the method for transporting an instrument transformer according to claim 1, 2 or 3. And electrically connecting the primary winding of the instrument transformer and the conductor embedded in the insulating spacer, and electrically connecting the secondary winding of the instrument transformer and the terminal provided on the ceiling cover. After connecting and assembling and conducting an insulation test of the instrument transformer, the instrument transformer is transported in that state .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the container of the line side unit 1 of the present embodiment is composed of a cylindrical container part 2a in the vertical direction and a cylindrical container part 2b formed in the horizontal direction above the cylindrical container part 2a. Yes. An insulating spacer 3 is provided at the end of the cylindrical container portion 2b. A flange portion is provided at the upper end of the cylindrical container portion 2a. A top plate 4 having a circular hole 5 is provided on the flange portion. Installed. A top cover 7 provided on the instrument transformer 6 is attached to the hole 5 of the top 4. A terminal portion 8 is provided on the top cover 7. The instrument transformer 6 includes a shield part 10 incorporating a primary winding, an iron core part 9, and a terminal part 11 for taking out a voltage from the secondary winding .
[0010]
When the instrument transformer 6 is transported, the instrument transformer 6 is sealed and transported in the transport apparatus. When the line side unit 1 is assembled, the interior of the line side unit 1 is assembled and then removed from the transport apparatus. As shown in FIG. 4, the top plate 4 is assembled by being inserted through the hole 5 provided in the top plate 4 and attaching the top plate cover 7 to the top plate 4. The position of the hole 5 into which the instrument transformer 6 is inserted can be changed depending on the position where the instrument transformer 6 is installed in the tank of the gas insulated switchgear.
[0011]
As shown in FIG. 2, the transport tank 20 of the transport apparatus includes a cylindrical container 21, an insulating spacer 22 provided at a lower portion, and a leg portion 23. The cylindrical container 21 is attached with a hanging ear 24 for lifting the transport tank 20, a gas valve 25, and a storage portion 26 for containing an adsorbent. A conductor 27 embedded in the insulating spacer 22 and a terminal 29 provided at the lower end of the shield portion 28 are electrically connected by a spring 30. A leg portion 23 is attached below the insulating spacer 22 so that it can be placed on the ground. A flange 31 is provided at the upper end of the cylindrical container 21, and a top plate cover 32 is fixed to the flange 31 with a bolt via a sealing material. A protective cover 33 is attached to the flange 31 to protect the terminal portion 34. A gas valve 25 is provided in order to evacuate the tank and fill it with an insulating gas after the instrument transformer 6 is installed in the transport tank 20.
[0012]
Since the transport tank 20 is configured as described above, the instrument transformer 6 is not exposed to the atmosphere during transportation and storage, and moisture and dust that cause a decrease in insulation performance are removed from the instrument transformer. 6 can be prevented from entering the winding.
[0013]
Further, when incorporating the instrument transformer 6 into the line side unit 1, it can be evacuated by inserting it through the hole 5 provided in the top plate 4 and attaching the top cover 32, so that the assembly time is shortened. Since the intrusion of moisture and dust can be reduced, the reliability of the instrument transformer can be improved.
[0014]
In addition, an insulating spacer 22 is provided to electrically connect the conductor 27 drawn to the outside and the terminal 29 of the instrument transformer 6 by a spring 30, and the gas pressure in the transport tank 20 can be set by a gas valve 25. Therefore, the dielectric strength test of the instrument transformer 6 can be performed at an appropriate time.
[0015]
【The invention's effect】
As described above, according to the present invention, it can be transported and stored without being exposed to the atmosphere from the time when the instrument transformer is assembled in the transport tank to the time when it is incorporated into the line side unit through the dielectric strength test. The reliability of the instrument transformer can be improved. Moreover, since the time for incorporating the instrument transformer into the line side unit can be shortened, the intrusion of moisture and dust that cause a decrease in the insulation performance can be reduced, so that the reliability of the instrument transformer can be improved.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal sectional view of a line side unit according to an embodiment of the present invention.
FIG. 2 is a front view showing the configuration of the transportation apparatus of the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Line side unit, 2 ... Cylindrical container part, 3,22 ... Insulating spacer, 4 ... Top plate, 5 ... Hole part, 6 ... Instrument transformer, 7 ... Top plate cover, 8, 11, 34 ... Terminal part ,
DESCRIPTION OF SYMBOLS 10,28 ... Shield part, 20 ... Transport tank, 21 ... Cylindrical container, 23 ... Leg part,
24 ... hanging ear, 25 ... gas valve, 26 ... storage part, 27 ... conductor, 29 ... terminal,
30 ... Spring, 31 ... Flange, 32 ... Top plate cover, 33 ... Protective cover.

Claims (4)

円筒容器と、該円筒容器の下部に設けられた絶縁スペーサ及び脚部と、前記円筒容器の上部に付設されたフランジと、該フランジに取付けられて、計器用変圧器に設けられている天井カバーと、前記円筒容器内を真空引きし、絶縁性ガスを充填するためのガスバルブとを備え、
前記円筒容器と絶縁スペーサ及び天井カバーとで密閉空間を形成し、この密封空間内に、前記ガスバルブにより絶縁性ガスを充填すると共に前記計器用変圧器を内蔵し、かつ前記天井カバーは、前記円筒容器から前記計器用変圧器と共に取り出し可能に前記フランジに取付けられていることを特徴とする計器用変圧器の輸送装置。
A cylindrical container, an insulating spacer and a leg provided at the lower part of the cylindrical container, a flange attached to the upper part of the cylindrical container, and a ceiling cover attached to the flange and provided in the instrument transformer And a gas valve for evacuating the inside of the cylindrical container and filling with an insulating gas,
A sealed space is formed by the cylindrical container, the insulating spacer, and the ceiling cover, the insulating gas is filled in the sealed space by the gas valve, the instrument transformer is built in, and the ceiling cover is formed by the cylinder. instrument transformer of the transport device, characterized in that the container is attached to the output Shi capable the flange takes together with the potential transformer.
前記計器用変圧器の一次巻線から引き出された端子と、前記絶縁スペーサに埋め込まれた導体と、前記端子と導体とを接続するばねと、前記天井カバーに設けられ、前記計器用変圧器の二次巻線から引き出された端子部とを備えていることを特徴とする請求項1に記載の計器用変圧器の輸送装置。  A terminal drawn from a primary winding of the instrument transformer, a conductor embedded in the insulating spacer, a spring connecting the terminal and the conductor, and provided on the ceiling cover; The instrument transformer transport device according to claim 1, further comprising: a terminal portion drawn from the secondary winding. 前記円筒容器は、吸着剤を入れるための吸着剤収納部を備えていることを特徴とする請求項1又は2に記載の計器用変圧器の輸送装置。  The said cylindrical container is equipped with the adsorbent accommodating part for putting in adsorbent, The transport apparatus of the transformer for measuring instruments of Claim 1 or 2 characterized by the above-mentioned. 計器用変圧器を、請求項1,2、又は3に記載の計器用変圧器の輸送装置に収納し、前記計器用変圧器の一次巻線と前記絶縁スペーサに埋め込まれた導体を電気的に接続し、前記計器用変圧器の二次巻線と前記天井カバーに設けられた端子部を電気的に接続して組立てて前記計器用変圧器の絶縁試験を行った後に、その状態で輸送することを特徴とする計器用変圧器の輸送方法。  The instrument transformer is housed in the instrument transformer transport device according to claim 1, 2, or 3, and the conductor embedded in the primary winding of the instrument transformer and the insulating spacer is electrically connected. After connecting, assembling by electrically connecting the secondary winding of the instrument transformer and the terminal portion provided on the ceiling cover, and carrying out an insulation test of the instrument transformer, it is transported in that state. A method for transporting an instrument transformer.
JP31431298A 1998-11-05 1998-11-05 Instrument transformer transportation device and method Expired - Lifetime JP4088376B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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JP31431298A JP4088376B2 (en) 1998-11-05 1998-11-05 Instrument transformer transportation device and method

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JP4088376B2 true JP4088376B2 (en) 2008-05-21

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