JPH0252813B2 - - Google Patents
Info
- Publication number
- JPH0252813B2 JPH0252813B2 JP57131441A JP13144182A JPH0252813B2 JP H0252813 B2 JPH0252813 B2 JP H0252813B2 JP 57131441 A JP57131441 A JP 57131441A JP 13144182 A JP13144182 A JP 13144182A JP H0252813 B2 JPH0252813 B2 JP H0252813B2
- Authority
- JP
- Japan
- Prior art keywords
- movable element
- leaf spring
- center hole
- mover
- lid
- 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
Links
- 230000005856 abnormality Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 230000005284 excitation Effects 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Gas-Insulated Switchgears (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Description
【発明の詳細な説明】
この発明は、電気機器の異常検出装置に関する
ものであり、もう少し詳しくいうと、内部を簡単
に見ることができない金属容器などで密封された
電気機器の内部異常を、容器外壁に伝播してくる
振動を利用して検知し表示する電気機器の異常検
出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abnormality detection device for electrical equipment, and more specifically, the present invention relates to an abnormality detection device for electrical equipment. This invention relates to an abnormality detection device for electrical equipment that detects and displays information using vibrations propagating to an outer wall.
従来、高電圧機器を絶縁性ガスと一体に密封容
器に収納し、これを複数個組合せて使用する電気
装置では、機器の内部放電や内絡事故など異常が
発生した場合、外部から見ることができないので
異常発生の早期発見がきわめて困難であつた。そ
こで、かような異常が生じると容器外壁に振動が
発生することが判明し、この振動を利用した検出
装置が提案された。第1図は従来のこの種の検出
装置である。 Conventionally, high-voltage equipment is housed together with insulating gas in a sealed container, and in electrical equipment that is used in combination, it is difficult to see from the outside if an abnormality occurs in the equipment, such as an internal discharge or an internal circuit accident. This made it extremely difficult to detect abnormalities early. It has been found that vibrations are generated on the outer wall of the container when such an abnormality occurs, and a detection device that utilizes this vibration has been proposed. FIG. 1 shows a conventional detection device of this type.
図において、胴体1の上部にネジ部1aによつ
て結合されたふた2に電気信号を出すリミツトス
イツチ3が設けてあり、胴体1内部に円周溝4a
を有する円筒形の可動子4が収納されている。胴
体1、ふた2およびスペーサ5で周辺が挾持固定
された1対の板バネ6は、第2図に示すように中
心孔6aから放射状の切欠き6bを有するもの
で、中心孔6aの直径dは可動子4の直径Dより
も小であり、中心孔6aの周辺が可動子4の円周
溝4aに圧接している。胴体1は電気機器本体の
容器7にボルト8で固定される。かような構成に
より、容器7の内部で電気機器に異常が発生し、
容器7外壁が振動すると、この振動は胴体1から
板バネ6を伝播し、可動子4が振動する。可動子
4の直径Dは板バネ6の中心孔6aの内径dより
大きいので、板バネ6は可動子4に角度θ1、θ2を
有して接している。この板バネ6の角度の向きを
すべて同じ方向にしておくことにより、可動子4
は板バネ6で狭まれており板バネ6を拡げなけれ
ば移動すなわち相対変位を発生することができな
い状態にある。この可動子4が振動すると、第1
図において上向きの方向に動くときは板バネ6を
拡げる力以上になると上方へ動き、逆向きの力が
働くと板バネ6で狭まれて可動子4は動かなくな
る。このような動作をくり返し行うと可動子4は
上方に少しづつ移動して行き、最後にはリミツト
スイツチ3を押して接点を切り替え、外部に異常
の信号として出される。このようにして異常が発
生した場所の当該検出装置を動作させて外部に知
らせる。 In the figure, a limit switch 3 is provided on the upper part of the body 1 to send an electric signal to a lid 2 connected by a threaded portion 1a, and a circumferential groove 4a inside the body 1 is provided.
A cylindrical mover 4 having a shape is housed therein. A pair of leaf springs 6 whose peripheries are clamped and fixed by the body 1, the lid 2, and the spacer 5 have cutouts 6b radiating from the center hole 6a as shown in FIG. 2, and the diameter d of the center hole 6a. is smaller than the diameter D of the mover 4, and the periphery of the center hole 6a is in pressure contact with the circumferential groove 4a of the mover 4. The body 1 is fixed to the container 7 of the electrical equipment main body with bolts 8. With such a configuration, an abnormality may occur in the electrical equipment inside the container 7,
When the outer wall of the container 7 vibrates, this vibration propagates from the body 1 to the leaf spring 6, causing the mover 4 to vibrate. Since the diameter D of the movable element 4 is larger than the inner diameter d of the center hole 6a of the leaf spring 6, the leaf spring 6 is in contact with the movable element 4 at angles θ 1 and θ 2 . By keeping all the angles of the leaf springs 6 in the same direction, the movable element 4
is narrowed by the leaf spring 6, and cannot move or generate relative displacement unless the leaf spring 6 is expanded. When this mover 4 vibrates, the first
In the figure, when moving in an upward direction, if the force exceeds the force that expands the leaf springs 6, it will move upward, and if a force in the opposite direction is applied, the leaf springs 6 will narrow the movable element 4, and the mover 4 will not move. When such an operation is repeated, the movable element 4 moves upward little by little, and finally the limit switch 3 is pressed to change the contact, and an abnormality signal is output to the outside. In this way, the detection device at the location where the abnormality has occurred is operated to notify the outside.
しかし、以上のような従来の装置では、リミツ
トスイツチ3の接点信号を切り替える直前までの
動作があつても外部には信号として表われない。
また、このような状態のままにしておいた場合、
外部からの衝撃的な振動を受けると異常信号を出
すおそれがあるので、可動子4を必ず元の位置に
復帰させておかなければならない。このためには
胴体1とふた2をねじ部1aではずし、内部の可
動子4、板バネ6、スペーサ5を取り出し、再組
立を行なわなければならず、電気機器に取付けら
れている位置によつては作業が困難である等の欠
点があつた。 However, in the conventional device as described above, even if there is an operation immediately before switching the contact signal of the limit switch 3, it does not appear as a signal to the outside.
Also, if you leave it in this state,
Since there is a risk that an abnormal signal will be generated if the movable element 4 receives shocking vibrations from the outside, it is necessary to return the movable element 4 to its original position. To do this, it is necessary to remove the body 1 and lid 2 at the screw part 1a, take out the internal movable element 4, leaf spring 6, and spacer 5, and reassemble them, depending on the position where they are attached to the electrical equipment. However, there were drawbacks such as difficulty in working with the method.
この発明は、以上のような従来の装置の欠点を
解消しようとするもので、可動子の変位を装置の
外部から直視でき、可動子を元に復帰させる操作
を容易にした電気機器の異常検出装置を提供する
ことを目的とするものである。 This invention is an attempt to eliminate the above-mentioned drawbacks of conventional devices, and is a method for detecting abnormalities in electrical equipment that allows the displacement of a movable element to be directly viewed from outside the device and facilitates the operation of returning the movable element to its original position. The purpose is to provide a device.
以下、この発明を第3図、第4図および第5図
に示す一実施例について説明する。図において胴
体11に透明なふた12がふた押え13をねじ部
11aに螺合してパツキン14を介して取付けら
れ、胴体1の内部には板バネ16を必要以上に曲
げさせないためのスペーサ15と胴体11にねじ
17で固定された押え板18で板バネ16の周辺
を挾持固定している。板バネ16は第4図に示す
ように直径dの中心孔16a、切欠き16bが形
成された円板状をなし、可動子19に弾接してい
る。可動子19の上端は、ふた12の内部へ延び
て表示端19aを形成している。20は周囲に窓
が形成されている円筒状のフオークで、窓の下辺
が板バネ16の中心孔16a周辺の下面に係合し
ている。このフオーク20と可動子19それぞれ
の段部間に可動子19を復帰させるためのコイル
バネ21が介挿されている。胴体11の下端はパ
ツキン22を介してねじ23により底板24に結
合されている。可動子19には板バネ16の中心
孔16a周辺が弾接する多数の円周溝19bが形
成されている。可動子19は、上方には板バネ1
6を押し上げて上昇できるが、下方には板バネ1
6が可動子19を挟みつけていて移動はできな
い。また、可動子19はコイルバネ21で下方に
押されているが、板バネ16が接触している限り
下方には戻らない。板バネ16はラチエツトのよ
うな働きをしている。コイルバネ21の上端はフ
オーク20に当接しており、フオーク20は上方
に移動する力が働くが、板バネ16を可動子19
から外す力は、作用、反作用の関係から発生しな
い。 The present invention will be described below with reference to an embodiment shown in FIGS. 3, 4, and 5. In the figure, a transparent lid 12 is attached to a body 11 via a gasket 14 by screwing a lid holder 13 onto a threaded portion 11a, and a spacer 15 is provided inside the body 1 to prevent the leaf spring 16 from being bent more than necessary. A holding plate 18 fixed to the body 11 with screws 17 clamps and fixes the periphery of the leaf spring 16. As shown in FIG. 4, the leaf spring 16 has a disc shape with a center hole 16a having a diameter d and a notch 16b, and is in elastic contact with the movable member 19. The upper end of the mover 19 extends into the interior of the lid 12 to form a display end 19a. 20 is a cylindrical fork with a window formed around it, and the lower side of the window engages with the lower surface of the leaf spring 16 around the center hole 16a. A coil spring 21 is inserted between the stepped portions of the fork 20 and the movable element 19 to return the movable element 19 to its original position. The lower end of the body 11 is connected to a bottom plate 24 through a gasket 22 and a screw 23. A large number of circumferential grooves 19b are formed in the movable element 19, with which the periphery of the center hole 16a of the leaf spring 16 comes into elastic contact. The movable element 19 has a leaf spring 1 on the upper side.
You can lift up by pushing up 6, but there is a leaf spring 1 below.
6 is pinching the mover 19 and cannot move. Further, although the movable element 19 is pushed downward by the coil spring 21, it will not return downward as long as the leaf spring 16 is in contact with it. The leaf spring 16 acts like a ratchet. The upper end of the coil spring 21 is in contact with the fork 20, and a force is exerted on the fork 20 to move it upward.
The force that removes the object is not generated from the relationship of action and reaction.
次に作用効果について説明する。この検出装置
を電気機器本体を収容する容器の外壁にガス区分
ごとあるいは一定間隔ごとに取り付ける。電気機
器内部の異常によつて外壁に振動が発生すると、
従来の装置における動作と同様にして可動子19
が振動する。そうして可動子19の移動量がふた
12の外部の周囲全方向から直視できる。表示部
19aには見やすくするため塗料等が塗布されて
いるので動作の状態を目で見ることができる。可
動子19を復帰させるには、ふた押え13とふた
12をはずし、板バネ16の内周部下面に係接す
る復帰用のフオーク20を引き上げることによつ
て板バネ16の内周部を可動子19から離すと、
可動子19は復帰用のコイルバネ21によつて下
方に押しもどされ元の状態になる。このように復
帰操作を簡単にすることができる。また、可動子
19の直径D(>d)の部分に小さな円周溝19
bを多数設けたので、可動子19は外部からの衝
撃振動のような高周波の振動には動きにくく、内
部異常で発生する500Hzまでの振動に動作する。
さらに、構成部品の動作に関係するものはすべて
同心に配置されているので、はめ合い部のすきま
を小さくすることで、各部品の位置が正しく確保
される。また、この検出装置は屋外使用にもなる
ため、外気と通じる接続部にはパツキン14,2
2で気密を保つようにしてある。 Next, the effects will be explained. This detection device is attached to the outer wall of the container housing the electrical equipment main body for each gas category or at regular intervals. When vibration occurs on the outer wall due to an abnormality inside the electrical equipment,
The mover 19 operates in the same manner as in conventional devices.
vibrates. In this way, the amount of movement of the movable element 19 can be seen directly from all directions around the outside of the lid 12. Since the display section 19a is coated with paint or the like to make it easier to see, the operating status can be visually observed. To return the movable element 19, remove the lid holder 13 and the lid 12, and pull up the return fork 20 that engages the lower surface of the inner periphery of the leaf spring 16. When separated from 19,
The movable element 19 is pushed back downward by the return coil spring 21 to return to its original state. In this way, the return operation can be simplified. In addition, a small circumferential groove 19 is formed in the diameter D (>d) portion of the mover 19.
Since a large number of b are provided, the movable element 19 is difficult to move due to high frequency vibrations such as shock vibrations from the outside, but operates against vibrations up to 500 Hz caused by internal abnormalities.
Furthermore, since everything related to the operation of the component parts is arranged concentrically, the correct position of each part can be ensured by reducing the gap between the fitting parts. In addition, since this detection device is used outdoors, the connection part that communicates with the outside air has gaskets 14 and 2.
2 to keep it airtight.
可動子19は、振動しながら少しづつ動いてい
くものであり、トグルバネを利用して一気に動作
するものではない。また、板バネ16によつては
さまれている力以上の力が可動子19に働かない
と動き出さず、この動き出しの力は可動子19の
直径Dと板ばね16の直径dの関係、板バネ16
の材質、板厚、長さ、幅で決まるバネ特性、可動
子19の重量によつて変化させることができ、対
象機器に応じて最適値にすることが可能であり、
電気機器の容器の外壁に取付けるだけで動作状態
におくことができる。 The mover 19 moves little by little while vibrating, and does not move all at once using a toggle spring. In addition, unless a force greater than the force applied by the plate spring 16 acts on the movable element 19, it will not start moving, and this force for starting movement is determined by the relationship between the diameter D of the movable element 19 and the diameter d of the plate spring 16, and the plate spring 16
The spring characteristics determined by the material, plate thickness, length, and width of the movable member 19 can be changed, and the optimum value can be set depending on the target equipment.
It can be put into operation simply by attaching it to the outer wall of the container of electrical equipment.
以上のように、この発明は、可動子の変位量を
外部の周囲全方向から視認することができ、可動
子の復帰操作が簡単であるに加え、動作の信頼性
が高いなどの効果を奏する。 As described above, the present invention has the following effects: the amount of displacement of the mover can be visually confirmed from all directions around the outside, the return operation of the mover is simple, and the operation is highly reliable. .
第1図は従来の装置の縦断面図、第2図は同じ
く一部平面図、第3図はこの発明の一実施例の縦
断面図、第4図は同じく一部平面図、第5図は同
じく要部斜視図である。
11……胴体、11a……ねじ部、12……ふ
た、13……ふた押え、14,22……パツキ
ン、15……スペーサ、16……バネ板、16a
……中心孔、16b……切欠き、17,23……
ねじ、18……押え板、19……可動子、19a
……表示端、19b……円周溝、20……フオー
ク、21……コイルバネ、24……底板。
FIG. 1 is a vertical cross-sectional view of a conventional device, FIG. 2 is a partial plan view, FIG. 3 is a vertical cross-sectional view of an embodiment of the present invention, FIG. 4 is a partial plan view, and FIG. is also a perspective view of the main part. 11...Body, 11a...Threaded portion, 12...Lid, 13...Lid holder, 14, 22...Putskin, 15...Spacer, 16...Spring plate, 16a
...Center hole, 16b...Notch, 17, 23...
Screw, 18... Pressing plate, 19... Mover, 19a
... Display end, 19b ... Circumferential groove, 20 ... Fork, 21 ... Coil spring, 24 ... Bottom plate.
Claims (1)
を有する円形の板バネと、この板バネの前記中心
孔周辺が弾接する多数の円周溝が形成され加振に
伴つて上方へ移動する円筒状の可動子と、前記胴
体の上端に着脱可能に配設された透明なふたと、
前記可動子と一体にして前記ふたの内部に延出し
た表示端と、前記板バネの前記中心孔周辺の下面
に係接して前記板バネと前記可動子の係合を解く
ためのフオークと、この係合解除時に前記可動子
を復帰させるコイルバネとを備えてなることを特
徴とする電気機器の異常検出装置。1. A body, a circular leaf spring whose periphery is fixed in the body and has a center hole, and a number of circumferential grooves are formed in which the periphery of the center hole of this leaf spring comes into elastic contact, and moves upward with excitation. a cylindrical mover; a transparent lid removably disposed on the upper end of the body;
a display end that is integrated with the movable element and extends into the interior of the lid; a fork that engages a lower surface around the center hole of the leaf spring to disengage the leaf spring and the movable element; An abnormality detection device for electrical equipment, comprising a coil spring that returns the movable element when the engagement is released.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57131441A JPS5919820A (en) | 1982-07-26 | 1982-07-26 | Abnormality detecting device of electric instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57131441A JPS5919820A (en) | 1982-07-26 | 1982-07-26 | Abnormality detecting device of electric instrument |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5919820A JPS5919820A (en) | 1984-02-01 |
JPH0252813B2 true JPH0252813B2 (en) | 1990-11-14 |
Family
ID=15058028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57131441A Granted JPS5919820A (en) | 1982-07-26 | 1982-07-26 | Abnormality detecting device of electric instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5919820A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5268045A (en) * | 1975-12-05 | 1977-06-06 | Osaka Transformer Co Ltd | Electron beam welding device |
JPS52126653A (en) * | 1976-04-16 | 1977-10-24 | Nippon Electric Co | Electron beam welder |
JPS54161554A (en) * | 1978-06-12 | 1979-12-21 | Kawasaki Heavy Ind Ltd | Vacuum shielding device for electron beam welding |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6035855Y2 (en) * | 1977-12-23 | 1985-10-24 | 三菱電機株式会社 | vibration detection device |
-
1982
- 1982-07-26 JP JP57131441A patent/JPS5919820A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5268045A (en) * | 1975-12-05 | 1977-06-06 | Osaka Transformer Co Ltd | Electron beam welding device |
JPS52126653A (en) * | 1976-04-16 | 1977-10-24 | Nippon Electric Co | Electron beam welder |
JPS54161554A (en) * | 1978-06-12 | 1979-12-21 | Kawasaki Heavy Ind Ltd | Vacuum shielding device for electron beam welding |
Also Published As
Publication number | Publication date |
---|---|
JPS5919820A (en) | 1984-02-01 |
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