JP7088760B2 - Replacing or repairing disconnector members - Google Patents

Replacing or repairing disconnector members Download PDF

Info

Publication number
JP7088760B2
JP7088760B2 JP2018126327A JP2018126327A JP7088760B2 JP 7088760 B2 JP7088760 B2 JP 7088760B2 JP 2018126327 A JP2018126327 A JP 2018126327A JP 2018126327 A JP2018126327 A JP 2018126327A JP 7088760 B2 JP7088760 B2 JP 7088760B2
Authority
JP
Japan
Prior art keywords
insulator
jig
disconnector
support
replacing
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.)
Active
Application number
JP2018126327A
Other languages
Japanese (ja)
Other versions
JP2020010416A (en
Inventor
吉記 松本
一夫 安次嶺
義満 宗像
Original Assignee
株式会社関電工
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 株式会社関電工 filed Critical 株式会社関電工
Priority to JP2018126327A priority Critical patent/JP7088760B2/en
Publication of JP2020010416A publication Critical patent/JP2020010416A/en
Application granted granted Critical
Publication of JP7088760B2 publication Critical patent/JP7088760B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Electric Cable Installation (AREA)

Description

この発明は、変電所等に設置された気中断路器の部材の取り替えや部材の修理の工法に関するものである。 The present invention relates to a method of replacing a member of an air interruption path device installed in a substation or the like and repairing the member.

変電所に設置された、単柱操作三角錐支持型の５５０ｋＶ気中断路器（以下、単に「断路器Ａ」と言う）は、図１２に示す様に、複数の碍子を長手方向に沿って接続した支持碍子１の接続体を３個用意し、これらの支持碍子１の接続体を三角錐形状に組み、支柱３を形成する。そして、これらの３個の支持碍子１の接続体の中央部に、複数の碍子を長手方向に沿って接続した操作碍子２の接続体を配置する。この操作碍子２を有する支柱３を二つ並べて基台６上に設け、各支柱３の頂部に、ブレード４ａの先端に主接触部４ｂを有し、基部にヒンジ部４ｃを有する導電部４の前記ヒンジ部４ｃを支持して、各ブレード４ａを夫々水平回転自在に設けたものである。 As shown in FIG. 12, a single-column operation triangular pyramid-supported 550 kV air interruption path (hereinafter, simply referred to as "disconnector A") installed at a substation has a plurality of insulators along the longitudinal direction. Three connecting bodies of the connected support insulator 1 are prepared, and these connecting bodies of the support insulator 1 are assembled in a triangular pyramid shape to form a support column 3. Then, at the center of the connection body of these three support insulators 1, a connection body of the operation insulator 2 in which a plurality of insulators are connected along the longitudinal direction is arranged. Two columns 3 having the operation insulator 2 are arranged side by side on the base 6, and the conductive portion 4 has a main contact portion 4b at the tip of the blade 4a at the top of each column 3 and a hinge portion 4c at the base. The hinge portion 4c is supported, and each blade 4a is provided so as to be horizontally rotatable.

従来の断路器Ａは、過去の地震の際に操作碍子が破損したことを踏まえて、地震動による応力が集中する操作碍子の中間部にピンジョイント機構を設け、操作碍子の曲げ応力を緩和する免震構造としていた。しかしながら、２０１１年の東北地方太平洋沖地震は、日本の耐震設計基準（ＪＥＡＧ５００３）を大きく上回る地震動レベルであったため、中間ピンジョイントは、振幅限界を超える変位量で振られ、構成部品同士が激しく衝突した。この様な設計値を上回る応力によって断路器の操作碍子や支持碍子等の破損が発生した。特に、操作碍子中央の可動部（中間ピンジョイント部）周辺での破損が多数発生した。 In the conventional disconnector A, based on the fact that the insulator was damaged during a past earthquake, a pin joint mechanism is provided in the middle part of the insulator where the stress due to the seismic motion is concentrated, and the bending stress of the insulator is relaxed. It had a seismic structure. However, since the 2011 off the Pacific coast of Tohoku Earthquake had a seismic motion level that greatly exceeded Japan's seismic design standards (JEAG5003), the intermediate pin joints were shaken with a displacement exceeding the amplitude limit, and the components collided violently. did. The stress exceeding the design value caused damage to the operation insulator and the support insulator of the disconnector. In particular, many damages occurred around the movable part (intermediate pin joint part) in the center of the operation insulator.

そこで、操作碍子２の接続体の可動部（中間ピンジョイント部）への衝撃力を抑制する衝撃緩衝装置の追加及び導電部の軽量化を図った取り替えを実施することにより耐震性能の向上を図ることが実施されている。 Therefore, we will improve the seismic performance by adding an impact shock absorber that suppresses the impact force to the movable part (intermediate pin joint part) of the connecting body of the operation insulator 2 and replacing the conductive part to reduce the weight. Is being carried out.

この断路器Ａの部材取替えの方法は、従来、図１３に示す様に、断路器Ａの一方の導電部４を有する支柱３の、支持碍子１の接続体の上部の支持碍子１と、この支持碍子１より下方に伸びた操作碍子２の接続体とから成る上部断路器Ａ－１を、支柱３の本体から切り離して、クレーンで吊り上げ「図中(１)」、この上部断路器Ａ－１を支柱３の本体の脇の空スペースに下ろし、クレーンで吊りながら支持碍子１の接続体の下部の支持碍子１を切り離し、また、操作碍子２の接続体のうちの下部の操作碍子２や中間ピンジョイント部７を外す「図中(２)」。さらに、上部断路器Ａ－１の導電部４を外す。 Conventionally, as shown in FIG. 13, the method of replacing the member of the disconnector A is to use the support insulator 1 on the upper part of the connection body of the support insulator 1 of the support column 3 having one conductive portion 4 of the disconnector A and the support insulator 1. The upper disconnector A-1, which consists of the connecting body of the operation insulator 2 extending below the support insulator 1, is separated from the main body of the support column 3 and lifted by a crane "in the figure (1)", this upper disconnector A- 1 is lowered into an empty space beside the main body of the support column 3, and the support insulator 1 at the lower part of the connection body of the support insulator 1 is disconnected while being suspended by a crane. "(2) in the figure" to remove the intermediate pin joint portion 7. Further, the conductive portion 4 of the upper disconnector A-1 is removed.

その後、新しく軽量化したブレードを有する新導電部４´を前記上部断路器Ａ－１の頂部に取付け、最上段の支持碍子１の下に複数の支持碍子１を接続し、また、操作碍子２に衝撃緩衝装置付き中間ピンジョイント部７´を取付け「図中(３)」、さらに、衝撃緩衝装置付き中間ピンジョイント部７´の下に操作碍子２を取付け「図中(４)」、再度クレーンで前記上部断路器Ａ－１を吊り上げて支柱３の本体に取付けて取替えが完了する「図中(５)」。 After that, a new conductive portion 4'with a new lightweight blade is attached to the top of the upper disconnector A-1, a plurality of support insulators 1 are connected under the support insulator 1 on the uppermost stage, and an operation insulator 2 is also used. Attach the intermediate pin joint part 7'with a shock shock absorber to "in the figure (3)", and further attach the operation insulator 2 under the intermediate pin joint part 7'with a shock shock absorber "in the figure (4)", again. “In the figure (5)”, the upper disconnector A-1 is lifted by a crane and attached to the main body of the support column 3 to complete the replacement.

耐震強化型５５０ｋＶ気中断路器 東光高岳技報Ｖｏｌ．２ ２０１５Seismic strengthening type 550kV air interruption path device Toko Takadake Giho Vol. 2 2015

しかしながら、上記の取替え工法では、クレーンで吊り上げた状態での碍子の取り外しや取付け作業となり、作業対象物が搖動する中での作業となり、熟練を要するとともに、安全面で問題がある。また、多数の支持碍子の接続を全て取り外すため、手間や時間を要する。さらに、多数の支持碍子や操作碍子の取付け、取り外し作業において、これらの碍子が接触等の衝撃により損傷する恐れもある。 However, in the above replacement method, the insulator is removed and attached while it is lifted by a crane, and the work is performed while the work object is in motion, which requires skill and has a safety problem. In addition, it takes time and effort to disconnect all the connections of many support insulators. Further, in the installation and removal work of a large number of support insulators and operation insulators, these insulators may be damaged by an impact such as contact.

そこで、この発明は上述の課題を解決するため、気中断路器の上記耐震強化工事を含む、部材の取替えや部材を修理する工法において、より安全かつ作業の容易な工法を提供することを目的としたものである。 Therefore, in order to solve the above-mentioned problems, it is an object of the present invention to provide a safer and easier work method in a method of replacing a member or repairing a member, including the above-mentioned seismic strengthening work of an air interruption path device. It is the one that was made.

請求項１の発明は、３本の支持碍子の接続体とその中央部に位置する１本の操作碍子の接続体から成る、単柱操作三角錐型断路器の部材の取替え又は修理の工法において、前記３本の支持碍子の接続体の上部の支持碍子を、下部の支持碍子を残して本体から切り離し、また、前記操作碍子の接続体の全部又は上部の操作碍子を、本体から切り離して、上部の支持碍子の中央部から操作碍子の接続体を垂下させた状態の上部断路器をクレーンで吊り上げ、中央部に操作碍子の接続体が入る孔を有する略直方体形状の枠体から成る治具の中に入れて、三本の上部支持碍子の各下端部を前記治具に固定し、また、操作碍子の接続体の下端を、治具の下部で支持し、この状態で取替え部材を取り替え、又は部材を修理し、前記部材の取り替え又は部材の修理後に、三本の上部支持碍子の各下端部の治具との固定及び操作碍子の下端の治具との支持を解除して、前記上部断路器を治具から吊り上げ、前記切り離した本体に再度接続、固定することを特徴とする、断路器の部材取替え又は修理工法とした。 The invention of claim 1 is a method for replacing or repairing a member of a single-column operation triangular cone type breaker, which comprises a connection body of three support insulators and a connection body of one operation insulator located at the center thereof. , The upper support insulator of the connection body of the three support insulators is separated from the main body except for the lower support insulator, and the entire or upper operation insulator of the connection body of the operation insulator is separated from the main body. A jig consisting of a substantially rectangular frame with a hole in the center where the insulator connection is inserted by lifting the upper breaker with the operation insulator hanging from the center of the upper support insulator. The lower end of each of the three upper support insulators is fixed to the above-mentioned jig, and the lower end of the connecting body of the operation insulator is supported by the lower part of the jig, and the replacement member is replaced in this state. Or, after repairing the member and replacing the member or repairing the member, fixing the three upper support insulators to the jigs at the lower ends and releasing the support from the lower end jigs of the operation insulators are released. The method of replacing or repairing the members of the breaker is characterized in that the upper breaker is lifted from the insulator and reconnected and fixed to the separated main body.

また、請求項２の発明は、前記治具に、操作碍子の接続体が通る中央孔を有する中段ステージを設け、当該中段ステージの三か所に、傾斜した円板を上端に有する支持碍子受台を設け、前記上部断路器の３本の支持碍子の下端部を当該三か所の支持碍子受台に載置して固定する、請求項１に記載の断路器の部材取替え又は修理工法とした。 Further, according to the second aspect of the present invention, the jig is provided with a middle stage having a central hole through which the connecting body of the operation insulator passes, and the support insulator receiver having an inclined disc at the upper end at three places of the middle stage. The method for replacing or repairing a member of the disconnector according to claim 1, wherein a stand is provided and the lower ends of the three support insulators of the upper disconnector are placed and fixed on the support insulator pedestals at the three places. did.

また、請求項３の発明は、前記治具が、左右に分割自在な２つの分割体から成り、各分割体は下端に複数個のキャスターを具備し、当該各分割体を突き合せて接続部材で一体とした、請求項１又は２に記載の断路器の部材取替え又は修理工法とした。 Further, in the third aspect of the present invention, the jig is composed of two split bodies that can be freely split to the left and right, each split body is provided with a plurality of casters at the lower ends, and the split bodies are butted against each other to form a connecting member. The method for replacing or repairing the disconnector member according to claim 1 or 2 was adopted.

また、請求項４の発明は、前記治具の中に、ジャッキ付台車を設け、当該ジャッキ付台車に前記上部断路器の操作碍子の下端又は中間ピンジョイント部を載置する、請求項１～３のいずれかに記載の断路器の部材取替え又は修理工法とした。 Further, in the invention of claim 4, a trolley with a jack is provided in the jig, and the lower end or an intermediate pin joint portion of the operation sill of the upper disconnector is placed on the trolley with a jack. The member replacement or repair method of the disconnector described in any one of 3 was adopted.

また、請求項５の発明は、前記治具は、前記中段ステージの上方の治具の外周に沿った足場状の上段ステージを有し、当該上段ステージに作業員がのって、前記上部断路器の支持碍子や操作碍子をロープを用いて当該治具に固定することを特徴とする、請求項２に記載の断路器の部材取替え又は修理工法とした。 Further, in the invention of claim 5, the jig has a scaffold-shaped upper stage along the outer periphery of the jig above the middle stage, and a worker rests on the upper stage to disconnect the upper part. The method for replacing or repairing a disconnector member according to claim 2 , wherein the support insulator and the operation insulator of the vessel are fixed to the jig by using a rope.

請求項１の発明によれば、従来の様に断路器本体から切り離した導電部を有する上部断路器をクレーンで吊るした状態で、その下で操作碍子を取り外したり、中間ピンジョイント部を取り替えたりする作業をする必要がなく、上部断路器を治具に固定し、その状態で作業ができるため、作業も容易で、迅速に行え、また、安全に作業が行える。また、支持碍子も必要最小限のものを切り離せばよく、従来のように、接続している多数の支持碍子を取り外す必要がなく、手間がかからない。 According to the invention of claim 1, in a state where the upper disconnector having the conductive portion separated from the disconnector main body is suspended by a crane as in the conventional case, the operation insulator can be removed or the intermediate pin joint portion can be replaced under the upper disconnector. Since the upper disconnector can be fixed to the jig and the work can be performed in that state, the work can be performed easily, quickly, and safely. In addition, it is only necessary to separate the minimum necessary support insulators, and it is not necessary to remove a large number of connected support insulators as in the conventional case, which saves time and effort.

また、請求項２の発明によれば、治具に中段ステージを設け、この中段ステージに３個の支持碍子受台を設け、上部断路器の３本の支持碍子の下端をこれらの支持碍子受台に載置、固定することが出来るため、上部断路器の治具への固定が容易であり、工事作業を迅速にすることが出来る。 Further, according to the invention of claim 2, a middle stage is provided in the jig, three support insulator receiving stands are provided in the middle stage, and the lower ends of the three support insulators of the upper disconnector are used to receive these support insulators. Since it can be placed and fixed on a table, it is easy to fix the upper disconnector to the jig, and the construction work can be speeded up.

また、特に、請求項３の発明によれば、治具は左右に二分されており、かつ、これらの各分割体は下端に複数個のキャスターを有するため、容易に一体化することができる。 Further, in particular, according to the invention of claim 3, since the jig is divided into left and right and each of these divided bodies has a plurality of casters at the lower ends, they can be easily integrated.

また、請求項４の発明によれば、前記治具の中に、ジャッキ付台車を設け、当該ジャッキ付台車に前記上部断路器の操作碍子の下端又は中間ピンジョイント部を載置するため、上部断路器の操作碍子や中間ピンジョインント部の吊り下がった高さに合わせてジャッキで台車の高さ調節が容易である。 Further, according to the invention of claim 4, a trolley with a jack is provided in the jig, and the lower end or an intermediate pin joint portion of the operation sill of the upper disconnector is placed on the trolley with a jack. Operation of the disconnector It is easy to adjust the height of the bogie with a jack according to the hanging height of the jig and the intermediate pin joint.

また、請求項５の発明は、治具の中段ステージの上方に上段ステージを有するため、当該上段ステージに作業員がのって、上部断路器の上部の支持碍子や操作碍子をロープを用いて治具に容易に固定することが出来る。 Further, in the invention of claim 5, since the upper stage is provided above the middle stage of the jig, a worker can ride on the upper stage and use a rope to mount the support insulator and the operation insulator on the upper part of the upper disconnector. It can be easily fixed to the jig.

この発明の実施の形態例１の断路器の部材取替え又は修理工法の第１工程を示す概略構成図である。It is a schematic block diagram which shows the 1st process of the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法の第２工程を示す概略構成図である。It is a schematic block diagram which shows the 2nd process of the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法の第３工程を示す概略構成図である。It is a schematic block diagram which shows the 3rd process of the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法の第４工程を示す概略構成図である。It is a schematic block diagram which shows the 4th process of the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法の第１工程での要部断面図である。It is sectional drawing of the main part in the 1st step of the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法に使用する治具の正面図である。It is a front view of the jig used for the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法に使用する治具の右側面図である。It is a right side view of the jig used for the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法に使用する治具の図６のＡ－Ａ線端面図である。FIG. 6 is an end view taken along line AA of FIG. 6 of a jig used for the member replacement or repair method of the disconnector according to the first embodiment of the present invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法に使用する治具の図６のＢ－Ｂ線端面図である。FIG. 6 is an end view taken along the line BB of FIG. 6 of a jig used for the member replacement or repair method of the disconnector according to the first embodiment of the present invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法に使用する治具の図６のＣ－Ｃ線端面図である。FIG. 6 is an end view taken along the line CC of FIG. 6 of a jig used for the member replacement or repair method of the disconnector according to the first embodiment of the present invention. この発明の実施の形態例１の断路器の部材取替え又は修理工法に使用する治具の支持碍子受台の斜視図である。It is a perspective view of the support insulator pedestal of the jig used for the member replacement or repair method of the disconnector of Embodiment 1 of this invention. この発明の対象である断路器の正面図である。It is a front view of the disconnector which is the object of this invention. この発明の断路器の部材取替え又は修理工法の従来例を示す概略構成図である。It is a schematic block diagram which shows the conventional example of the member replacement or repair method of the disconnector of this invention.

（実施の形態例１）
まず、この発明の実施の形態例１の断路器Ａの部材取替え又は修理工法に使用する治具Ｂを図６～図１１に基づいて説明する。 (Example 1 of the embodiment)
First, the jig B used for the member replacement or repair method of the disconnector A of the first embodiment of the present invention will be described with reference to FIGS. 6 to 11.

この治具Ｂは、断路器本体から切り離した上部断路器を支持する略直方体形状の枠体から成る治具Ｂである。この治具Ｂ内に断路器Ａの支柱３の本体から切り離した上部断路器Ａ－１の操作碍子２の接続体を入れ、前記支持碍子１の各下端を中段ステージに固定するものである。なお、前記操作碍子２の接続体の下部のものは切り離し、所定の操作碍子２の下端部を当該治具Ｂ内で支持する。 This jig B is a jig B made of a substantially rectangular parallelepiped frame body that supports the upper disconnector separated from the disconnector main body. A connecting body of the operation insulator 2 of the upper disconnector A-1 separated from the main body of the support 3 of the disconnector A is inserted in the jig B, and each lower end of the support insulator 1 is fixed to the middle stage. The lower part of the connection body of the operation insulator 2 is separated, and the lower end portion of the predetermined operation insulator 2 is supported in the jig B.

前記治具Ｂは、図６において、左右２つに分かれて分割体８ａ及び分割体８ｂから構成されており、これらの分割体８ａ，８ｂの突き合せた端部の支柱の複数箇所で接続金具９により一体に接続されて治具Ｂを構成している。また、各分割体８ａ，８ｂの下端には複数個のブレーキ付キャスター１０を具備し、水平移動しやすいようになっている。また各分割体８ａ，８ｂを一体に接続し、所定箇所に止めた際、四隅に転倒防止用架台１１を取付け、治具Ｂの外側に張り出す構成となっている。また、これらの各転倒防止用架台１１には、高さ調整ジャッキ１１ａが設けられている。 In FIG. 6, the jig B is divided into two parts on the left and right sides, and is composed of a divided body 8a and a divided body 8b. The jig B is integrally connected by 9. Further, a plurality of casters 10 with brakes are provided at the lower ends of the divided bodies 8a and 8b so that they can be easily moved horizontally. Further, when the divided bodies 8a and 8b are integrally connected and fixed at predetermined positions, the fall prevention pedestals 11 are attached to the four corners so as to project to the outside of the jig B. Further, each of these fall prevention pedestals 11 is provided with a height adjusting jack 11a.

更に当該治具Ｂ内部は、五角形状の中央孔１２を有する中段ステージ１３、及びこの中段ステージ１３の上方に上段ステージ１４を夫々有している。当該上段ステージ１４は、治具Ｂの外周に沿った足場を形成している。そして、前記中段ステージ１３の中央孔１２の周囲の３か所に、支持碍子受台１５を設けている。 Further, the inside of the jig B has a middle stage 13 having a pentagonal central hole 12 and an upper stage 14 above the middle stage 13, respectively. The upper stage 14 forms a scaffolding along the outer circumference of the jig B. Support insulator pedestals 15 are provided at three locations around the central hole 12 of the middle stage 13.

この支持碍子受台１５は、図１１に示すように、断面この字型の枠体１５ａの上に円板１５ｂを傾斜させて載置、固定したもので、当該円板１５ｂの周縁にボルトを通す円弧状透孔１５ｃを複数個穿ったものである。そしてこれらの各円弧状透孔１５ｃを介して後述する支持碍子１の下端部をボルトで固定する構成となっている。 As shown in FIG. 11, the support insulator pedestal 15 has a disk 15b placed and fixed on an inclined frame 15a having a cross section of this shape, and a bolt is attached to the peripheral edge of the disk 15b. It is formed by drilling a plurality of arcuate through holes 15c through which it passes. The lower end portion of the support insulator 1, which will be described later, is fixed with a bolt through each of these arcuate through holes 15c.

また、この治具Ｂは、図６及び図７に示しように、複数の手摺や横桟を有し、また、ある箇所ではチェーンが掛かっている。これらの手摺や横桟等にレバーブロック（登録商標）・玉ロープ、チェーンブロック、その他の工具を吊下げておくことが出来る。さらに、当該治具Ｂ内の地面に、後述するジャッキ付台車１７が出し入れ自在となっている。 Further, as shown in FIGS. 6 and 7, this jig B has a plurality of handrails and cross rails, and a chain is hung at a certain place. Lever blocks (registered trademarks), ball ropes, chain blocks, and other tools can be hung from these handrails and cross rails. Further, a dolly with a jack 17, which will be described later, can be freely put in and taken out from the ground in the jig B.

次に、この発明の実施の形態例１の断路器の部材取替え又は修理工法について図１～図５に基づいて説明する。 Next, a member replacement or repair method for the disconnector according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

まず、断路器Ａの一方の支柱３の、３本の各１本の支持碍子１の接続体は４個の支持碍子１を長手方向に接続したものであり、この接続体の上の二つの支持碍子１を下の二つの支持碍子１から切り離し、また、操作碍子２の接続体はその下端を基台６から切り離し、切り離した上部断路器Ａ－１を図１の左図に示す様にクレーンで吊り上げて作業スペースに移動させる。 First, the connection body of each of the three support insulators 1 of the one support column 3 of the disconnector A is a connection of four support insulators 1 in the longitudinal direction, and two on the connection body. The support insulator 1 is separated from the lower two support insulators 1, and the lower end of the connecting body of the operation insulator 2 is separated from the base 6, and the separated upper disconnector A-1 is as shown in the left figure of FIG. Lift it with a disconnector and move it to the work space.

そして、前記治具Ｂの分割体８ａ及び８ｂを、図１の右図に示す様に、事前に接続金具９で一体とした治具Ｂに組み立てる。その後、クレーンで吊り上げた状態の上部断路器Ａ－１を一体化した治具Ｂの中に入れて、この状態で、最下端の操作碍子２及び中間ピンジョイント部７を上部断路器Ａ－１から切り離す。 Then, the divided bodies 8a and 8b of the jig B are assembled into the jig B integrated with the connection fitting 9 in advance as shown in the right figure of FIG. After that, the upper disconnector A-1 lifted by a crane is placed in the integrated jig B, and in this state, the lowermost operating insulator 2 and the intermediate pin joint portion 7 are placed in the upper disconnector A-1. Separate from.

この治具Ｂ内で、作業員が中段ステージ用梯子１８を用いて中段ステージ１３にのぼり、当該中段ステージ１３の３個の支持碍子受台１５に、前記上部断路器Ａ－１の３本の支持碍子１の各下端部を、それぞれボルトを用いて固定する。また、ジャッキ付台車１７を用いて衝撃緩衝装置付き中間ピンジョイント部７´（ダンパ）を、前記上部断路器Ａ－１の操作碍子２の下端へボルトで固定し、また、当該衝撃緩衝装置付き中間ピンジョイント部７´をジャッキ付台車１７に載置、支持する。この状態を図５は示している。 In this jig B, a worker climbs to the middle stage 13 using the ladder 18 for the middle stage, and the three support insulator cradle 15 of the middle stage 13 has the three upper disconnectors A-1. Each lower end of the support insulator 1 is fixed with a bolt. Further, the intermediate pin joint portion 7'(damper) with an impact shock absorber is fixed to the lower end of the operation insulator 2 of the upper disconnector A-1 with a bolt using a trolley 17 with a jack, and the shock shock absorber is attached. The intermediate pin joint portion 7'is placed and supported on the trolley 17 with a jack. FIG. 5 shows this state.

その後、図２の左図に示す様に、上段ステージ用梯子１９を用いて作業員が上段ステージにのぼり、レバーブロック（登録商標）・玉ロープ２０を使用して、支持碍子１を当該治具Ｂに固定する。また、中段ステージ１３の上や下で作業員は操作碍子２を、玉ロープ２１を用いて治具Ｂに固定する。 After that, as shown in the left figure of FIG. 2, a worker climbs up to the upper stage using the ladder 19 for the upper stage, and uses the lever block (registered trademark) and the ball rope 20 to support the insulator 1 to the jig. Fix to B. Further, above and below the middle stage 13, the worker fixes the operation insulator 2 to the jig B using the ball rope 21.

そして、前記上部断路器Ａ－１の導電部４と支持碍子１及び操作碍子２との取付けボルトを外し、導電部４を前記上部断路器Ａ－１から切り離す。その際、図示は省略したが、前記上部断路器Ａ－１の重心が変化するため、チェーンブロックにより水平調整する。この様にして前記導電部４をクレーンで吊り上げ、図２の右図に示す様に、導電部４を解体スペースへ移動させ、流用品を取り外して、軽量化したブレードを有する新導電部４´に付け替える。 Then, the mounting bolts of the conductive portion 4 of the upper disconnector A-1 and the support insulator 1 and the operation insulator 2 are removed, and the conductive portion 4 is separated from the upper disconnector A-1. At that time, although not shown, the center of gravity of the upper disconnector A-1 changes, so that the horizontal adjustment is performed by the chain block. In this way, the conductive portion 4 is lifted by a crane, the conductive portion 4 is moved to the dismantling space as shown in the right figure of FIG. 2, the diversion is removed, and the new conductive portion 4'having a lightweight blade is provided. Replace with.

次に、図３に示す様に、新導電部４´をクレーンで吊り上げて前記治具Ｂの上方に移動させ、前記上部断路器Ａ－１の支持碍子１及び操作碍子２の上端に取付けボルトを用いて新導電部４´を取付け固定する。また、図示は省略したが、新導電部４´の取付けによる重心変化に合わせてチェーンブロックにて水平調整を行う。 Next, as shown in FIG. 3, the new conductive portion 4'is lifted by a crane and moved above the jig B, and a mounting bolt is attached to the upper ends of the support insulator 1 and the operation insulator 2 of the upper disconnector A-1. The new conductive portion 4'is attached and fixed using. Although not shown, the chain block is used for horizontal adjustment according to the change in the center of gravity due to the attachment of the new conductive portion 4'.

そして、図４の左図に示す様に、前記上部断路器Ａ－１をクレーンで吊りながら、支持碍子１の下端と支持碍子受台１５とのボルト固定を解除し、また、支持碍子１からレバーブロック（登録商標）・玉ロープ２０の取り外し及び操作碍子２から玉ロープ２１を取り外し、さらに、衝撃緩衝装置付き中間ピンジョイント部７´を載置していたジャッキ付台車１７を外す。 Then, as shown in the left figure of FIG. 4, while suspending the upper disconnector A-1 with a crane, the bolt fixing between the lower end of the support insulator 1 and the support insulator pedestal 15 is released, and from the support insulator 1 Removal and operation of lever block (registered trademark) and ball rope 20 The ball rope 21 is removed from the insulator 2, and the trolley with a jack 17 on which the intermediate pin joint portion 7'with a shock shock absorber is placed is also removed.

その後、クレーンで前記上部断路器Ａ－１を吊り上げ、図４の右図の様に、衝撃緩衝装置付き中間ピンジョイント部７´の下に操作碍子２を取付け、既設の断路器Ａの上部が外れた本体の上から前記上部断路器Ａ－１を下げて、これらを再度接続する。そして、治具Ｂを解体する。 After that, the upper disconnector A-1 is lifted by a crane, and the operating insulator 2 is attached under the intermediate pin joint portion 7'with an impact shock absorber as shown in the right figure of FIG. 4, and the upper part of the existing disconnector A is The upper disconnector A-1 is lowered from above the detached main body, and these are reconnected. Then, the jig B is disassembled.

なお、上記実施の形態例１では、中間ピンジョイント部７を衝撃緩衝装置付き中間ピンジョイント部７´に取替え、導電部４を軽量化したブレードを有する新導電部４´に取替える作業の工法を説明したが、これらの取替え作業に限らず、当該断路器の部材の取替え又は修理の際に、当該発明の工法は適用できる。 In the first embodiment, the method of replacing the intermediate pin joint portion 7 with an intermediate pin joint portion 7'with a shock shock absorber and replacing the conductive portion 4 with a new conductive portion 4'having a lightweight blade is used. As described above, the construction method of the present invention can be applied not only to these replacement operations but also to the replacement or repair of the member of the disconnector.

また、治具Ｂも上記実施の形態例１のものに限らず、前記上部断路器Ａ－１を支持固定できるものであれば、他の構成のものでも良い。また、上記実施の形態例１では治具Ｂの分割体８ａ、８ｂを一体に組み立てた後に、クレーンで吊るした上部断路器Ａ－１を一体化した前記治具Ｂ内に入れているが、これに限らず、クレーンで吊るした上部断路器Ａ－１を地上近くに下ろした状態で、治具Ｂの分割体８ａ、８ｂを左右から近づけ、上部断路器Ａ－１を挟むようにして分割体８ａ、８ｂ相互を接続してもよい。 Further, the jig B is not limited to that of the first embodiment, and may have another configuration as long as it can support and fix the upper disconnector A-1. Further, in the first embodiment, after the divided bodies 8a and 8b of the jig B are integrally assembled, the upper disconnector A-1 suspended by a crane is put in the integrated jig B. Not limited to this, with the upper disconnector A-1 suspended by a crane lowered near the ground, the divided bodies 8a and 8b of the jig B are brought closer from the left and right, and the divided body 8a is sandwiched between the upper disconnector A-1. , 8b may be connected to each other.

また、上記実施の形態例では、治具Ｂの分割体８ａ，８ｂの接続を接続金具９で接続しているが、これは他の接続部材を用いてもよい。また、前記レバーブロック（登録商標）・玉ロープ２０や玉ロープ２１もこれらのものに限らず、適宜のロープやワイヤーを用いて支持碍子１や操作碍子２を治具Ｂに固定してもよい。 Further, in the above embodiment, the connection of the divided bodies 8a and 8b of the jig B is connected by the connecting metal fitting 9, but other connecting members may be used. Further, the lever block (registered trademark), the ball rope 20 and the ball rope 21 are not limited to these, and the support insulator 1 and the operation insulator 2 may be fixed to the jig B by using an appropriate rope or wire. ..

Ａ 断路器
Ｂ 治具
１ 支持碍子 ２ 操作碍子
３ 支柱 ４ 導電部
４´ 新導電部 ４ａ ブレード
４ｂ 主接触部 ４ｃ ヒンジ部
６ 基台 ７ 中間ピンジョイント部
７´ 衝撃緩衝装置付き中間ピンジョイント部
８ａ 分割体 ８ｂ 分割体
９ 接続金具 １０ ブレーキ付キャスター
１１ 転倒防止用架台 １１ａ 高さ調整ジャッキ
１２ 中央孔 １３ 中段ステージ
１４ 上段ステージ １５ 支持碍子受台
１５ａ 枠体 １５ｂ 円板
１５ｃ 円弧状透孔 １７ ジャッキ付台車
１８ 中段ステージ用梯子 １９ 上段ステージ用梯子
２０ レバーブロック（登録商標）・玉ロープ
２１ 玉ロープ A Disconnector B Jig 1 Support insulator 2 Operation insulator 3 Strut 4 Conductive part 4'New conductive part 4a Blade 4b Main contact part 4c Hinge part 6 Base 7 Intermediate pin joint part 7'Intermediate pin joint part with impact shock absorber
8a Split body 8b Split body 9 Connection bracket 10 Caster with brake 11 Fall prevention stand 11a Height adjustment jack 12 Central hole 13 Middle stage 14 Upper stage 15 Support porcelain cradle 15a Frame body 15b Disk 15c Arc-shaped through hole 17 Jack Attached trolley
18 Ladder for middle stage 19 Ladder for upper stage 20 Lever block (registered trademark) / Ball rope 21 Ball rope

Claims (5)

３本の支持碍子の接続体とその中央部に位置する１本の操作碍子の接続体から成る、単柱操作三角錐型断路器の部材の取替え又は修理の工法において、
前記３本の支持碍子の接続体の上部の支持碍子を、下部の支持碍子を残して本体から切り離し、また、前記操作碍子の接続体の全部又は上部の操作碍子を、本体から切り離して、上部の支持碍子の中央部から操作碍子の接続体を垂下させた状態の上部断路器をクレーンで吊り上げ、
中央部に操作碍子の接続体が入る孔を有する略直方体形状の枠体から成る治具の中に入れて、三本の上部支持碍子の各下端部を前記治具に固定し、
また、操作碍子の接続体の下端を、治具の下部で支持し、
この状態で取替え部材を取り替え、又は部材を修理し、
前記部材の取り替え又は部材の修理後に、三本の上部支持碍子の各下端部の治具との固定及び操作碍子の下端の治具との支持を解除して、前記上部断路器を治具から吊り上げ、前記切り離した本体に再度接続、固定することを特徴とする、断路器の部材取替え又は修理工法。 In the method of replacing or repairing the members of a single-column operation triangular pyramid disconnector, which consists of a connection body of three support insulators and a connection body of one operation insulator located in the center thereof.
The upper support insulator of the connection body of the three support insulators is separated from the main body except for the lower support insulator, and the entire or upper operation insulator of the connection body of the operation insulator is separated from the main body, and the upper part is separated. Lift the upper disconnector with the insulator of the operation insulator hanging from the center of the support insulator with a crane.
Put it in a jig consisting of a substantially rectangular parallelepiped-shaped frame having a hole in the center for connecting the insulator, and fix each lower end of each of the three upper support insulators to the jig.
In addition, the lower end of the insulator connection is supported by the lower part of the jig.
In this state, replace the replacement member or repair the member.
After replacing the member or repairing the member, the upper end disconnector is removed from the jig by fixing the three upper support insulators with the jig at the lower ends and releasing the support with the jig at the lower end of the operation insulator. A method for replacing or repairing a disconnector member, which comprises lifting, reconnecting and fixing to the separated main body. 前記治具に、操作碍子の接続体が通る中央孔を有する中段ステージを設け、当該中段ステージの三か所に、傾斜した円板を上端に有する支持碍子受台を設け、前記上部断路器の３本の支持碍子の下端部を当該三か所の支持碍子受台に載置して固定することを特徴する、請求項１に記載の断路器の部材取替え又は修理工法。 The jig is provided with a middle stage having a central hole through which the connecting body of the operation insulator passes, and support insulator cradle having an inclined disk at the upper end is provided at three places of the middle stage. The method for replacing or repairing a disconnector member according to claim 1, wherein the lower ends of the three support insulators are placed and fixed on the support insulator cradle at the three places. 前記治具が、左右に分割自在な２つの分割体から成り、各分割体は下端に複数個のキャスターを具備し、当該各分割体を突き合せて接続部材で一体としたことを特徴とする、請求項１又は２に記載の断路器の部材取替え又は修理工法。 The jig is composed of two split bodies that can be freely split to the left and right, and each split body is provided with a plurality of casters at the lower ends, and the split bodies are butted against each other and integrated with a connecting member. , The member replacement or repair method of the disconnector according to claim 1 or 2. 前記治具の中に、ジャッキ付台車を設け、当該ジャッキ付台車に前記上部断路器の操作碍子の下端又は中間ピンジョイント部を載置することを特徴とする、請求項１～３のいずれかに記載の断路器の部材取替え又は修理工法。 Any of claims 1 to 3, wherein a trolley with a jack is provided in the jig, and the lower end of the operation insulator of the upper disconnector or the intermediate pin joint portion is placed on the trolley with a jack. Replacement or repair method for disconnector members described in. 前記治具は、前記中段ステージの上方の治具の外周に沿った足場状の上段ステージを有し、当該上段ステージに作業員がのって、前記上部断路器の支持碍子や操作碍子をロープを用いて当該治具に固定することを特徴とする、請求項２に記載の断路器の部材取替え又は修理工法。 The jig has a scaffold-shaped upper stage along the outer periphery of the jig above the middle stage, and a worker sits on the upper stage to rope the support insulator and the operation insulator of the upper disconnector. The method for replacing or repairing a member of a disconnector according to claim 2 , wherein the jig is fixed to the jig using the above.
JP2018126327A 2018-07-02 2018-07-02 Replacing or repairing disconnector members Active JP7088760B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018126327A JP7088760B2 (en) 2018-07-02 2018-07-02 Replacing or repairing disconnector members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018126327A JP7088760B2 (en) 2018-07-02 2018-07-02 Replacing or repairing disconnector members

Publications (2)

Publication Number Publication Date
JP2020010416A JP2020010416A (en) 2020-01-16
JP7088760B2 true JP7088760B2 (en) 2022-06-21

Family

ID=69152567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018126327A Active JP7088760B2 (en) 2018-07-02 2018-07-02 Replacing or repairing disconnector members

Country Status (1)

Country Link
JP (1) JP7088760B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113922259A (en) * 2021-09-30 2022-01-11 马文龙 Portable isolating switch emergency instrument

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148424A (en) 2006-12-08 2008-06-26 Orino Densetsu Kk Method of replacing insulator string
JP2014120276A (en) 2012-12-14 2014-06-30 Takaoka Electric Mfg Co Ltd Shock absorbing device for disconnector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63194511A (en) * 1987-02-06 1988-08-11 三和鋼器株式会社 Elevating stage for maintenance and inspection of insulator in substation
JPH0715283Y2 (en) * 1992-11-26 1995-04-10 三和鋼器株式会社 Lifting platform for maintenance and inspection work of insulators in substations
JPH11355921A (en) * 1998-06-08 1999-12-24 Mitsubishi Electric Corp Electric apparatus replacement device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148424A (en) 2006-12-08 2008-06-26 Orino Densetsu Kk Method of replacing insulator string
JP2014120276A (en) 2012-12-14 2014-06-30 Takaoka Electric Mfg Co Ltd Shock absorbing device for disconnector

Also Published As

Publication number Publication date
JP2020010416A (en) 2020-01-16

Similar Documents

Publication Publication Date Title
JP7088760B2 (en) Replacing or repairing disconnector members
CN108254270A (en) A kind of impact test apparatus
JP6882019B2 (en) How to operate a tower crane
CN110080599B (en) Power transmission iron tower based on power transmission
CN208666838U (en) A kind of construction safety lifting device
CN208647154U (en) A kind of plant protection inspection unmanned plane
CN202808259U (en) Jack and push rod self-locking lengthening apparatus assembly
CN115520255A (en) Multifunctional multipurpose rotation transportation hoisting device and using method thereof
CN101908731A (en) Hoisting device for on-load tap changers of transformers
CN107487723A (en) A kind of substation equipment maintenance and repair hoisting apparatus
CN209353864U (en) A kind of 220kV high-tension apparatus area pinpoints safe fence bar
CN211622835U (en) Support convenient to street lamp installation
CN106760468A (en) The suspension platform that a kind of construction site uses
CN113264454A (en) Engine hanging bracket convenient to adjust and used for repair
JPH07102793A (en) Demolition of tower body and device therefor
CN101615766A (en) A kind of novel ladder that is used for the repairing high-voltage breaker operation
CN216005018U (en) Windproof fixing mechanism of tower crane for building
CN219117023U (en) Assembled tower crane stay bar pavement platform
CN108358041B (en) Large-scale mechanical hanger
CN217300112U (en) Scenic spot protection guardrail convenient to installation
CN116065799B (en) Anti-shaking climbing scaffold
CN209958720U (en) Quick installation maintenance platform in boiler stove
CN209536866U (en) A kind of conveyer frames of building iron structure
CN213923961U (en) Transformer overhauls one-time operation and overhauls platform
CN215485059U (en) Anti-seismic base for high-voltage power tower

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20180703

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210611

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20220207

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220301

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220418

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20220510

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20220609

R150 Certificate of patent or registration of utility model

Ref document number: 7088760

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150