JPH10332757A - Static electricity measuring device - Google Patents
Static electricity measuring deviceInfo
- Publication number
- JPH10332757A JPH10332757A JP9147814A JP14781497A JPH10332757A JP H10332757 A JPH10332757 A JP H10332757A JP 9147814 A JP9147814 A JP 9147814A JP 14781497 A JP14781497 A JP 14781497A JP H10332757 A JPH10332757 A JP H10332757A
- Authority
- JP
- Japan
- Prior art keywords
- static electricity
- liquid
- filter
- holder
- insulating
- 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.)
- Pending
Links
Landscapes
- Testing Relating To Insulation (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば油入変圧
器等の絶縁性液体の静電気現象を診断するための静電気
の測定装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static electricity measuring device for diagnosing static phenomena of an insulating liquid such as an oil-immersed transformer.
【０００２】[0002]
【従来の技術】高絶縁流体が固体絶縁物の表面を流動す
るときに流体中の正負イオンのうちいずれか一方が選択
的に固体表面に吸着されて生ずる静電気現象は、よく知
られている。油入変圧器等の絶縁油を評価する方法とし
ては、稼動中の電気機器から採取した絶縁油を別置きの
静電気監視装置で静電気現象を診断する方法や、稼動中
の電気機器に静電気監視装置を直接取り付けて静電気現
象を診断する方法が考えられる。図５は特開昭５４−１
１９９６７号公報に記載された従来の静電気測定装置の
構成を示す概略図である。図において、１は例えば油入
変圧器等の電気機器、２は電気機器１内の絶縁性液体で
ある絶縁油、３は絶縁油２を冷却する冷却器（図示せ
ず）を介して電気機器１内に連通された冷却流路、４は
冷却流路３に配置された油ポンプで、これら１〜４で被
測定装置５が構成されている。６は冷却流路３のヘッド
差を生じている任意の２点間にそれぞれバルブ１１ａ，
１１ｂを介して連通する静電気測定流路、７，８は静電
気測定流路６に順次接続された静電気発生部，流量計で
ある。静電気発生部７は図示してないが容器内に電気機
器１の静電気発生部材を模擬するためのセルロース繊維
でできたモールドパイプ等を、絶縁油２の流れ方向に配
置して形成されている。９は静電気発生部７と配線９ａ
で接続され接地線８ｂを備えた電流計で、こられ６〜１
０で静電気測定部１２が構成されている。2. Description of the Related Art When a highly insulating fluid flows on the surface of a solid insulator, an electrostatic phenomenon that occurs when one of positive and negative ions in the fluid is selectively adsorbed on the solid surface is well known. Methods for evaluating insulating oil such as oil-immersed transformers include a method of diagnosing electrostatic phenomena by using a separate static electricity monitoring device for insulating oil collected from operating electrical equipment, and a method of evaluating static electricity monitoring by using a static electricity monitoring device for operating electrical equipment. There is a method of diagnosing the electrostatic phenomenon by directly attaching the device. FIG.
It is the schematic which shows the structure of the conventional static electricity measuring device described in 199767 gazettes. In the figure, 1 is an electric device such as an oil-immersed transformer, 2 is an insulating oil which is an insulating liquid in the electric device 1, and 3 is an electric device via a cooler (not shown) for cooling the insulating oil 2. The cooling flow path 4 communicated with the inside 1 is an oil pump disposed in the cooling flow path 3, and the device to be measured 5 is constituted by these 1-4. Numeral 6 designates valves 11a, 11a between any two points of the cooling flow path 3 which have a head difference.
The static electricity measuring channels 7 and 8 communicate with each other via the static electricity measuring channel 6 via the static electricity measuring channel 6 and the flow meter 11. Although not shown, the static electricity generating section 7 is formed by arranging a mold pipe made of cellulose fiber for simulating the static electricity generating member of the electric device 1 in a container in the flow direction of the insulating oil 2. 9 is a static electricity generating unit 7 and a wiring 9a
Ammeter provided with a ground wire 8b
0 indicates that the static electricity measuring unit 12 is configured.
【０００３】次に動作について説明する。流量計８によ
って所定の流量にコントロールされた絶縁油２がバルブ
１１ａ，１１ｂを介して静電気発生部７の導入され、こ
の静電気発生部７からの漏れ電流を電流計９で測定する
ことにより被測定装置５内の絶縁油２の流動を連続的に
監視している。Next, the operation will be described. The insulating oil 2 controlled to a predetermined flow rate by the flow meter 8 is introduced into the static electricity generating unit 7 via the valves 11a and 11b, and the leakage current from the static electricity generating unit 7 is measured by the ammeter 9 to be measured. The flow of the insulating oil 2 in the device 5 is continuously monitored.
【０００４】[0004]
【発明が解決しようとする課題】従来の静電気測定部１
２は上記のように構成され、静電気測定部１２の静電気
測定流路６を被測定装置５の冷却流路３から直接分岐さ
せているため、循環する絶縁油２の量が多くなり静電気
測定部１２が大掛りになるという問題点があった。A conventional static electricity measuring unit 1
2 is configured as described above, and since the static electricity measuring channel 6 of the static electricity measuring unit 12 is directly branched from the cooling channel 3 of the device under test 5, the amount of the circulating insulating oil 2 increases and the static electricity measuring unit 2 There was a problem that 12 became large.
【０００５】この発明の上記のような問題点を解消する
ためになされたもので、装置の小形化が可能で保守点検
の容易な静電気測定装置を得ることを目的とする。It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an electrostatic measurement device which can be downsized and which can be easily maintained and inspected.
【０００６】[0006]
【課題を解決するための手段】この発明の請求項１に係
わる静電気測定装置は、被測定装置の絶縁性液体が採取
される液体採取容器と、液体採取容器と連通し絶縁性液
体が循環する流路を形成する液体循環路と、液体循環路
に配置され絶縁性液体を循環させる液体ポンプと、液体
循環路に電気的に絶縁して連通する流路に多孔質の絶縁
材でなるフィルタを有する静電気発生部と、静電気発生
部からの漏れ電流を検出する静電気検出部とで構成した
ものである。According to a first aspect of the present invention, there is provided a static electricity measuring apparatus, comprising: a liquid collecting container for collecting an insulating liquid of the device to be measured; and a circulating insulating liquid communicating with the liquid collecting container. A liquid circulation path forming a flow path, a liquid pump disposed in the liquid circulation path to circulate the insulating liquid, and a filter made of a porous insulating material in a flow path electrically insulated and communicating with the liquid circulation path. And a static electricity detecting section for detecting a leakage current from the static electricity generating section.
【０００７】また、この発明の請求項２に係わる静電気
測定装置は、請求項１において、液体採取容器はベロー
ズ式で容積可変に形成されているものである。According to a second aspect of the present invention, there is provided the static electricity measuring device according to the first aspect, wherein the liquid collection container is a bellows type and has a variable volume.
【０００８】また、この発明の請求項３に係わる静電気
測定装置は、請求項１において、静電気発生部は、フィ
ルタを保持して形成された第１のホルダと、第１のホル
ダと対向し第１のホルダと着脱可能に形成されフィルタ
を押圧することにより第１のホルダ内に固定する第２の
ホルダで構成されたものである。According to a third aspect of the present invention, in the static electricity measuring device according to the first aspect, the static electricity generating section includes a first holder formed by holding the filter, and a first holder facing the first holder. It is constituted by a second holder which is detachably formed with the first holder and is fixed in the first holder by pressing the filter.
【０００９】また、この発明の請求項４に係わる静電気
測定装置は、請求項３において、フィルタは、流路の下
流側に接して配置されるメッシュ状の金属板とともに積
層されているものである。According to a fourth aspect of the present invention, in the static electricity measuring device according to the third aspect, the filter is laminated together with a mesh-shaped metal plate disposed in contact with the downstream side of the flow path. .
【００１０】また、この発明の請求項５に係わる静電気
測定装置は、請求項３において、フィルタは、多数の微
小な貫通孔が形成された絶縁性の板状部材であるもので
ある。According to a fifth aspect of the present invention, there is provided a static electricity measuring device according to the third aspect, wherein the filter is an insulating plate-like member having a large number of minute through holes formed therein.
【００１１】また、この発明の請求項６に係わる静電気
測定装置は、請求項３において、両ホルダは、Ｌ形状を
なし一端がいずれか一方のホルダに軸支され他端が他方
のホルダと係合するように形成された複数のヒンジによ
って着脱されるものである。According to a sixth aspect of the present invention, in the static electricity measuring apparatus according to the third aspect, each of the holders has an L shape, and one end is pivotally supported by one of the holders and the other end is engaged with the other holder. It is detachable by a plurality of hinges formed so as to fit together.
【００１２】[0012]
実施の形態１．以下この発明の実施の形態１を図につい
て説明する。図１はこの発明の実施の形態１による静電
気測定装置の構成を示す概略図、図２は図１における静
電気測定装置の静電気発生部の構成を示す側面断面図で
ある。図において、１３は例えば油入変圧器等の電気機
器、１４は電気機器１３内の絶縁性液体である絶縁油、
１５は電気機器１３に設けられている検油用のバルブ、
１６はバルブ１５に取り付けられているフランジで、こ
れら１３〜１６で被測定装置１７が構成されている。１
８は容積可変のベローズ部１８ａの一端に取付フランジ
１８ｂを他端に調整フランジ１８ｃを有して形成され絶
縁油１４が採取されるベローズ式容器、１９は一方が取
付フランジ１８ｂに固定され他方が調整フランジ１８ｃ
のガイドをなす複数のガイド棒、２０はガイド棒１９の
他方と螺合し調整フランジ１８ｃを係合してガイド棒１
９に固定する固定ナット、２１はベローズ式容器１８に
連通して配置された排出バルブでこれら１８〜２１で液
体採取容器２２が構成され、この液体採取容器２２は取
付フランジ１８ｂをボルト４０を介してフランジ１６に
取り付けられることにより被測定装置１７と接続され
る。２３は液体採油容器２２と連通し絶縁油１４の循環
する流路を形成する液体循環路、２４，２５，２６は液
体循環路２３に順次接続された液体ポンプ，流量計，静
電気発生部である。Embodiment 1 FIG. Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a configuration of a static electricity measuring device according to Embodiment 1 of the present invention, and FIG. 2 is a side sectional view showing a configuration of a static electricity generating unit of the static electricity measuring device in FIG. In the figure, 13 is an electric device such as an oil-filled transformer, 14 is an insulating oil which is an insulating liquid in the electric device 13,
15 is a valve for oil inspection provided in the electric device 13,
Reference numeral 16 denotes a flange attached to the valve 15, and these devices 13 to 16 constitute a device to be measured 17. 1
Reference numeral 8 denotes a bellows-type container which is formed with a mounting flange 18b at one end of a variable-volume bellows portion 18a and an adjusting flange 18c at the other end and from which the insulating oil 14 is collected, and 19 is fixed to the mounting flange 18b and the other is Adjusting flange 18c
A plurality of guide rods 20, which form the guide, are screwed with the other one of the guide rods 19 to engage with the adjustment flange 18c to guide the guide rods 1.
9 is a fixing nut, 21 is a discharge valve arranged in communication with the bellows-type container 18, and these 18 to 21 constitute a liquid collecting container 22. The liquid collecting container 22 is connected to the mounting flange 18b via bolts 40. By being attached to the flange 16, it is connected to the device under test 17. Reference numeral 23 denotes a liquid circulation path which communicates with the liquid oil collecting container 22 and forms a flow path for circulating the insulating oil 14. .
【００１３】静電気発生部２６は、多孔質の例えば紙基
材など絶縁材で板状に形成されたフィルタ２７と、フィ
ルタ２７を保持して椀状に形成され中央に貫通孔２８ａ
を内面にねじ部２８ｂを有する第１のホルダ２８と、第
１のホルダ２８と対向するフランジ状に形成され中央に
貫通孔２９ａを外周にねじ部２９ｂを有し第１のホルダ
２８と螺合してフィルタ２７を押圧するようにしてフィ
ルタ２７を第１のホルダ２８内に固定する第２のホルダ
２９と、フィルタ２７の下流側に接して積層されフィル
タ２７の変形を防止するメッシュ状の金属板３０と、両
ホルダ２８，２９間をシールドするＯリング３１とで構
成されている。３２は静電気発生部２６を液体循環路２
３と電気的に絶縁するための絶縁用チューブ、３３，３
４は静電気発生部２６の両端にそれぞれ接続されたバル
ブ、３５は静電気発生部２６を配線３５ａで接続され静
電気検出部をなす電流計、３６は液体循環路２３にバル
ブ３７を介在して連結された真空ポンプ、３８，３９は
液体採取容器２２および電流計３５それぞれに設けられ
ている接地線である。The static electricity generating section 26 has a filter 27 formed of a porous insulating material such as a paper base in a plate shape, a bowl shape holding the filter 27 and a through hole 28a in the center.
And a first holder 28 having a threaded portion 28b on the inner surface, a flange formed opposite to the first holder 28, having a through hole 29a at the center and a threaded portion 29b on the outer periphery, and screwing with the first holder 28. A second holder 29 for fixing the filter 27 in the first holder 28 by pressing the filter 27 and a mesh-shaped metal laminated in contact with the downstream side of the filter 27 to prevent the filter 27 from being deformed. It comprises a plate 30 and an O-ring 31 for shielding between the holders 28 and 29. Reference numeral 32 designates the static electricity generator 26 as the liquid circulation path 2
3, an insulating tube for electrically insulating from 3
4 is a valve connected to both ends of the static electricity generating unit 26, 35 is an ammeter connected to the static electricity generating unit 26 by a wiring 35a to form a static electricity detecting unit, and 36 is connected to the liquid circulation path 23 via a valve 37. The vacuum pumps 38 and 39 are ground lines provided in the liquid collection container 22 and the ammeter 35, respectively.
【００１４】次に、上記のように構成された実施の形態
１の操作手順および動作について説明する。まず、フラ
ンジ１６と取付フランジ１８ｂを結合して被測定装置１
３に静電気測定装置の液体採取容器２２を接続する。次
に真空ポンプ３６を運転し液体循環路２３および配置さ
れている機器内の空気を真空除去する。その後バルブ１
５を開けベローズ式容器１８の中に絶縁油１４を入れた
後バルブ１５を閉じる。排出バルブ２１を開き初期の絶
縁油１４を廃却しその後排出バルブ２１を閉じる。この
状態でのベローズ式容器１８の内容積はガイド棒１９と
固定ナット２０で調整されヘッド圧が緩衝される。次に
バルブ１５を開けベローズ式容器１８内に絶縁油１４を
入れた状態で、液体ポンプ２４を運転して液体循環路２
３に絶縁油１４を循環させる。Next, the operation procedure and operation of the first embodiment configured as described above will be described. First, the flange 16 and the mounting flange 18b are connected to each other to
3 is connected to the liquid sampling container 22 of the static electricity measuring device. Next, the vacuum pump 36 is operated to remove the air in the liquid circulation path 23 and the equipment in the vacuum. Then valve 1
5 is opened, the insulating oil 14 is put into the bellows type container 18, and the valve 15 is closed. The discharge valve 21 is opened, the initial insulating oil 14 is discarded, and then the discharge valve 21 is closed. The inner volume of the bellows-type container 18 in this state is adjusted by the guide rod 19 and the fixing nut 20, and the head pressure is buffered. Next, with the valve 15 opened and the insulating oil 14 placed in the bellows type container 18, the liquid pump 24 is operated to operate the liquid circulation path 2.
3 circulates the insulating oil 14.
【００１５】液体採取容器２２に採取され循環する絶縁
油１４は流量計２５で静電気発生部２６への流量が調節
され静電気発生部２６のフィルタ２７を通過してベロー
ズ式容器１８内に戻り循環を繰り返す。循環する絶縁油
１４が静電気発生部２６のフィルタ２７を通過する際、
その多孔質部からの漏れ電流が両ホルダ２８，２９から
配線３５ａを経て電流計３５で測定される。The flow rate of the insulating oil 14 collected and circulated in the liquid collecting container 22 is adjusted by a flow meter 25 to the static electricity generating unit 26, passes through the filter 27 of the static electricity generating unit 26, returns to the bellows type container 18, and circulates. repeat. When the circulating insulating oil 14 passes through the filter 27 of the static electricity generator 26,
The leakage current from the porous portion is measured by the ammeter 35 from the holders 28 and 29 via the wiring 35a.
【００１６】このように、測定用の絶縁油１４を一度液
体採取容器２２に採取して液体採取容器２２からの循環
路を形成するようにしたことにより被測定装置の構造に
限定されることなく容易に取り付け可能でかつ、装置が
小形化し循環させる油量を少なくすることが可能にな
る。また、静電気発生を多孔質絶縁材でなるフィルタ２
７の通過部にするとともにフィルタ２７を着脱自在のホ
ルダ２８，２９で保持するようにしたことにより、少量
の油量で測定が可能になるとともにフィルタの交換が簡
単となり保守点検が容易となる。さらに液体採取容器２
２にベローズ式容器１８を用いたことにより真空引きや
被測定装置１３に取り付けた状態でのヘッド圧を緩衝す
ることができ測定精度を向上させる。As described above, since the insulating oil 14 for measurement is once collected in the liquid collecting container 22 to form a circulation path from the liquid collecting container 22, the structure is not limited to the structure of the device to be measured. The device can be easily attached, and the size of the device can be reduced, so that the amount of oil to be circulated can be reduced. In addition, a filter 2 made of a porous insulating material is used to generate static electricity.
7, the filter 27 is held by the detachable holders 28 and 29, so that the measurement can be performed with a small amount of oil, the filter can be easily replaced, and the maintenance and inspection can be facilitated. In addition, liquid collection container 2
By using the bellows type container 18 in 2, the head pressure in a state of being evacuated or attached to the device 13 to be measured can be buffered, and the measurement accuracy is improved.
【００１７】実施の形態２．上記実施の形態１ではフィ
ルタ２７を多孔質の板状絶縁材で形成したものとした
が、この実施の形態２では図３に示すとおり、例えば被
測定装置１３に使用されているものと同等の絶縁性の硬
い板状部材に多数の微小貫通孔４１ａが形成されている
フィルタ４１としたものである。Embodiment 2 FIG. In the first embodiment, the filter 27 is formed of a porous plate-shaped insulating material. In the second embodiment, for example, as shown in FIG. This is a filter 41 in which a large number of minute through holes 41a are formed in an insulating hard plate member.
【００１８】このように上記実施の形態２によれば絶縁
性の硬い板状部材のフィルタ４１を用いたので実施の形
態１で使用のメッシュ状の金属板３０が不用で構成が簡
単になる。また被測定装置１３の電気機器と同等の絶縁
材を使用しているので、電気機器内で発生するものと類
似の流動帯電現象の測定が可能になる。As described above, according to the second embodiment, since the filter 41 made of a hard insulating plate member is used, the mesh-shaped metal plate 30 used in the first embodiment is not required, and the configuration is simplified. Further, since the same insulating material as that of the electric equipment of the device under test 13 is used, it is possible to measure the flow electrification phenomenon similar to that generated in the electric equipment.
【００１９】実施の形態３．上記実施の形態１では、静
電気発生部２６をフィルタ２７を保持して椀状に形成さ
れた第１のホルダ２８とフランジ状の第２のホルダ２９
を螺合して結合させる構成のものを示したが、この実施
の形態３では図４に示すとおり、フィルタ２７を保持し
て椀状に形成され、中央に貫通孔４２ａを有する第１の
ホルダ４２と、第１のホルダ４２と対向するフランジに
形成され中央に貫通孔４３ａを有する第２のホルダ４３
と、Ｌ形状をなし一端が第２のホルダ４３の外周部にピ
ン４４ａで軸支され他端が第１のホルダ４２の外平面と
係合するように形成された複数のヒンジ４４で構成し、
ヒンジ４４を第１のホルダ４２に係合させることによ
り、フィルタ２７を第２のホルダ４３が押圧し、第１の
ホルダ４２内にフィルタ２７を固定するようにしたもの
である。なお、図中実施の形態１におけると同様な部分
は同一符号を付してその説明は省略する。Embodiment 3 In the first embodiment, a first holder 28 formed in a bowl shape and a second holder 29 in a flange shape are formed by holding a static electricity generating portion 26 while holding a filter 27.
In the third embodiment, as shown in FIG. 4, the first holder is formed in a bowl shape while holding the filter 27, and has a through hole 42a in the center. And a second holder 43 formed on a flange facing the first holder 42 and having a through hole 43a in the center.
A plurality of hinges 44 having an L shape, one end of which is pivotally supported on the outer peripheral portion of the second holder 43 by a pin 44a and the other end of which is formed to engage with the outer plane of the first holder 42. ,
By engaging the hinge 44 with the first holder 42, the filter 27 is pressed by the second holder 43, and the filter 27 is fixed in the first holder 42. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００２０】このようにヒンジ４４によって両ホルダ４
２，４３の着脱を容易にしたことにより、静電気発生部
２６を液体循環路２３から切り離すことなくフィルタ２
７の交換が可能となる。As described above, the two holders 4 are hinged by the hinge 44.
2 and 43, the static electricity generating section 26 can be separated from the liquid circulation path 23 without separating the filter 2.
7 can be exchanged.
【００２１】なお、上記実施の形態１〜３では被測定装
置が油入電気機器の静電気測定装置の場合について述べ
たが、ガス絶縁変圧器等の不燃性の絶縁液体を用いた電
気機器についても同様の効果を奏する。さらに、上記実
施の形態１〜３では被測定装置に取り付けて絶縁油の流
動電流を測定する場合について述べたが、被測定装置と
接続する場合と同様にあらかじめ被測定装置から採取し
た容器に取り付ければ光や空気にさらされることなく油
の流動電流の測定が可能となり、測定精度の向上が図れ
ることは言うまでもない。In the first to third embodiments, the case where the device to be measured is an electrostatic measurement device for oil-filled electrical equipment has been described. However, electrical equipment using a nonflammable insulating liquid, such as a gas-insulated transformer, may also be used. A similar effect is achieved. Furthermore, in the above-described first to third embodiments, the case where the measuring device is attached to the device to be measured and measures the flowing current of the insulating oil has been described. Needless to say, it is possible to measure the flowing current of the oil without being exposed to light or air, thereby improving the measurement accuracy.
【００２２】[0022]
【発明の効果】以上のように、この発明の請求項１によ
れば、被測定装置の絶縁性液体が採取される液体採取容
器と、液体採取容器と連通し絶縁性液体が循環する流路
を形成する液体循環路と、液体循環路に配置され絶縁性
液体を循環させる液体ポンプと、液体循環路に電気的に
絶縁して連通する流路に多孔質の絶縁材でなるフィルタ
を有する静電気発生部と、静電気発生部からの漏れ電流
を検出する静電気検出部とで構成したので、取り付けが
容易でかつ装置が小形化できるとともに少量の絶縁性液
体量で測定が可能となる静電気測定装置が得られる効果
がある。As described above, according to the first aspect of the present invention, there is provided a liquid collecting container for collecting the insulating liquid of the device to be measured, and a flow passage communicating with the liquid collecting container and circulating the insulating liquid. And a liquid pump arranged in the liquid circulation path to circulate the insulating liquid and a filter made of a porous insulating material in a flow path electrically insulated and communicating with the liquid circulation path. Since it is composed of a generator and a static detector that detects leakage current from the static generator, there is an electrostatic measurement device that is easy to install, can be downsized, and can be measured with a small amount of insulating liquid. There is an effect that can be obtained.
【００２３】また、この発明の請求項２によれば、請求
項１において、液体採取容器はベローズ式で容積可変に
形成されているので、液体循環路内のヘッド圧を緩衝す
ることができ測定の信頼性の向上が可能な静電気測定装
置が得られる効果がある。According to a second aspect of the present invention, in the first aspect, since the liquid collecting container is formed in a bellows type and has a variable volume, the head pressure in the liquid circulation path can be buffered and measured. There is an effect that an electrostatic measurement device capable of improving the reliability of the device can be obtained.
【００２４】また、この発明の請求項３によれば、請求
項１において、静電気発生部は、フィルタを保持して形
成された第１のホルダと、第１のホルダと対向し第１の
ホルダと着脱可能に形成されフィルタを押圧することに
より第１のホルダ内に固定する第２のホルダで構成され
ているので、静電気発生部が小形でフィルタ交換の容易
な静電気測定装置が得られる効果がある。According to a third aspect of the present invention, in the first aspect, the static electricity generating section includes a first holder formed by holding the filter, and a first holder opposed to the first holder. And the second holder fixed in the first holder by pressing the filter by being detachably attached to the first holder, so that the static electricity generating unit is small and the static electricity measuring device which can easily replace the filter can be obtained. is there.
【００２５】また、この発明の請求項４によれば、請求
項３において、フィルタは、流路の下流側に接して配置
されるメッシュ状の金属板とともに積層されているの
で、多孔質のフィルタが変形することなく静電気発生部
で正確に静電気を発生する静電気測定装置が得られる効
果がある。According to a fourth aspect of the present invention, in the third aspect, the filter is laminated with a mesh-shaped metal plate disposed in contact with the downstream side of the flow path, so that the porous filter is provided. Thus, there is an effect that an electrostatic measurement device that accurately generates static electricity in the static electricity generating unit without deforming the static electricity can be obtained.
【００２６】また、この発明の請求項５によれば、請求
項３において、フィルタは、多数の微小な貫通孔が形成
された絶縁性の板状部材であるので、フィルタの変形を
防ぐ支持部材が不用となり静電気発生部の構成が簡単な
静電気測定装置が得られる効果がある。According to a fifth aspect of the present invention, in the third aspect, since the filter is an insulating plate-like member having a large number of minute through holes formed therein, the supporting member prevents the filter from being deformed. This is advantageous in that a static electricity measuring device with a simple configuration of the static electricity generating section can be obtained.
【００２７】また、この発明の請求項６によれば、請求
項３において、両ホルダは、Ｌ形状をなし一端がいずれ
か一方のホルダに軸支され他端が他方のホルダと係合す
るように形成された複数のヒンジによって着脱されるよ
うにしたので、静電気発生部を液体循環路から切り離す
ことなくフィルタの交換が可能な静電気測定装置が得ら
れる効果がある。According to a sixth aspect of the present invention, in the third aspect, each of the holders has an L shape, and one end is pivotally supported by one of the holders and the other end is engaged with the other holder. Since it is configured to be attached and detached by a plurality of hinges formed on the liquid circulation path, there is an effect that an electrostatic measurement device capable of replacing the filter without separating the static electricity generating portion from the liquid circulation path is obtained.
【図１】 この発明の実施の形態１による静電気測定装
置の構成を示す概略図である。FIG. 1 is a schematic diagram showing a configuration of a static electricity measuring device according to a first embodiment of the present invention.
【図２】 図１における静電気測定装置の静電気発生部
の構成を示す断面側面図である。FIG. 2 is a sectional side view showing a configuration of a static electricity generating unit of the static electricity measuring device in FIG.
【図３】 この発明の実施の形態２における静電気発生
部のフィルタの構成を示す断面図である。FIG. 3 is a cross-sectional view illustrating a configuration of a filter of a static electricity generating unit according to Embodiment 2 of the present invention.
【図４】 この発明の実施の形態３における静電気測定
装置の静電気発生部の構成を示す断面側面図である。FIG. 4 is a cross-sectional side view illustrating a configuration of a static electricity generating unit of a static electricity measuring device according to a third embodiment of the present invention.
【図５】 従来の静電気測定装置の構成を示す概略図で
ある。FIG. 5 is a schematic diagram showing a configuration of a conventional static electricity measuring device.
１３ 電気機器、１４ 絶縁油（絶縁性液体）、１７
被測定装置、１８ ベローズ式容器、２２ 液体採取容
器、２３ 液体循環路、２４ 液体ポンプ、２６ 静電
気発生部、２７ フィルタ、２８ 第１のホルダ、２９
第２のホルダ、３０ メッシュ状の金属板、３２ 絶
縁チューブ、３５ 静電気検出部、４１ フィルタ、４
１ａ 微小貫通孔、４２ 第１のホルダ、４３ 第２の
ホルダ、４４ ヒンジ。13 electrical equipment, 14 insulating oil (insulating liquid), 17
Device to be measured, 18 bellows type container, 22 liquid sampling container, 23 liquid circulation path, 24 liquid pump, 26 static electricity generator, 27 filter, 28 first holder, 29
2nd holder, 30 mesh-shaped metal plate, 32 insulating tube, 35 static electricity detector, 41 filter, 4
1a Micro through hole, 42 first holder, 43 second holder, 44 hinge.
Claims (6)
体採取容器と、該液体採取容器と連通し上記絶縁性液体
が循環する流路を形成する液体循環路と、該液体循環路
に配置され上記絶縁性液体を循環させる液体ポンプと、
上記液体循環路に電気的に絶縁して連通する流路に多孔
質の絶縁材でなるフィルタを有する静電気発生部と、該
静電気発生部からの漏れ電流を検出する静電気検出部と
を備えたことを特徴とする静電気測定装置。1. A liquid collection container for collecting an insulating liquid of a device under test, a liquid circulation path communicating with the liquid collection container and forming a flow path through which the insulating liquid circulates, A liquid pump arranged and circulating the insulating liquid,
A static electricity generating section having a filter made of a porous insulating material in a flow path electrically insulated and communicating with the liquid circulation path; and an electrostatic detecting section for detecting a leakage current from the static electricity generating section. A static electricity measuring device characterized by the above-mentioned.
形成されていることを特徴とする請求項１に記載の静電
気測定装置。2. The static electricity measuring device according to claim 1, wherein the liquid collection container is a bellows type and has a variable volume.
成された第１のホルダと、上記第１のホルダと対向し上
記第１のホルダと着脱可能に形成され上記フィルタを押
圧することにより上記第１のホルダ内に固定する第２の
ホルダで構成されたことを特徴とする請求項１記載の静
電気測定装置。3. A static electricity generating section comprising: a first holder formed to hold a filter; and a first holder formed to be opposed to the first holder and detachably attached to the first holder to press the filter. 2. The static electricity measuring device according to claim 1, further comprising a second holder fixed in said first holder.
されるメッシュ状の金属板とともに積層されていること
を特徴とする請求項３に記載の静電気測定装置。4. The static electricity measuring device according to claim 3, wherein the filter is laminated with a mesh-shaped metal plate arranged in contact with the downstream side of the flow path.
された絶縁性の板状部材であることを特徴とする請求項
３に記載の静電気測定装置。5. The static electricity measuring device according to claim 3, wherein the filter is an insulating plate-like member having a large number of minute through holes.
ずれか一方のホルダに軸支され他端が上記他方のホルダ
と係合するように形成された複数のヒンジによって着脱
されることを特徴とする請求項３に記載の静電気測定装
置。6. Both holders are L-shaped, one end of which is pivotally supported by one of the holders, and the other end of which is detachably mounted by a plurality of hinges formed to engage with the other holder. The static electricity measuring device according to claim 3, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9147814A JPH10332757A (en) | 1997-06-05 | 1997-06-05 | Static electricity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9147814A JPH10332757A (en) | 1997-06-05 | 1997-06-05 | Static electricity measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10332757A true JPH10332757A (en) | 1998-12-18 |
Family
ID=15438834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9147814A Pending JPH10332757A (en) | 1997-06-05 | 1997-06-05 | Static electricity measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10332757A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316569A (en) * | 2014-10-15 | 2015-01-28 | 中国航空工业集团公司沈阳飞机设计研究所 | Oiling static test method |
| CN107121610A (en) * | 2017-05-23 | 2017-09-01 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Simulate external pressure environment electronic component test system |
| JP2017183477A (en) * | 2016-03-30 | 2017-10-05 | 中部電力株式会社 | Flow charge evaluation diagnosis method for electrical equipment, and flow charge evaluation diagnosis device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215376A (en) * | 1975-07-25 | 1977-02-04 | Toshiba Corp | Charge-degree meter |
| JPS5242799A (en) * | 1975-10-01 | 1977-04-02 | Toshiba Corp | Device of measuring fluid charge of insulating oil |
| JPS5482022A (en) * | 1977-12-13 | 1979-06-29 | Mitsubishi Electric Corp | Static electricity supervisory unit for transformers |
| JPS5847263A (en) * | 1981-09-14 | 1983-03-18 | Meidensha Electric Mfg Co Ltd | Measuring device for degree of electrification |
-
1997
- 1997-06-05 JP JP9147814A patent/JPH10332757A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215376A (en) * | 1975-07-25 | 1977-02-04 | Toshiba Corp | Charge-degree meter |
| JPS5242799A (en) * | 1975-10-01 | 1977-04-02 | Toshiba Corp | Device of measuring fluid charge of insulating oil |
| JPS5482022A (en) * | 1977-12-13 | 1979-06-29 | Mitsubishi Electric Corp | Static electricity supervisory unit for transformers |
| JPS5847263A (en) * | 1981-09-14 | 1983-03-18 | Meidensha Electric Mfg Co Ltd | Measuring device for degree of electrification |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316569A (en) * | 2014-10-15 | 2015-01-28 | 中国航空工业集团公司沈阳飞机设计研究所 | Oiling static test method |
| JP2017183477A (en) * | 2016-03-30 | 2017-10-05 | 中部電力株式会社 | Flow charge evaluation diagnosis method for electrical equipment, and flow charge evaluation diagnosis device |
| CN107121610A (en) * | 2017-05-23 | 2017-09-01 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Simulate external pressure environment electronic component test system |
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