JPH0220133U - - Google Patents
Info
- Publication number
- JPH0220133U JPH0220133U JP9814688U JP9814688U JPH0220133U JP H0220133 U JPH0220133 U JP H0220133U JP 9814688 U JP9814688 U JP 9814688U JP 9814688 U JP9814688 U JP 9814688U JP H0220133 U JPH0220133 U JP H0220133U
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- guard electrode
- minute current
- leakage current
- current detector
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims 2
- 239000004020 conductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000615 nonconductor Substances 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案に係る真空度低下検出装置の一
実施例を示す構成説明図、第２図は本考案の他の
実施例を示す構成説明図である。
１０……真空開閉器、１１，１１Ａ，１１Ｂ…
…絶縁筒、１２……固定電極、１３……可動電極
、２１，２１Ａ，２１Ｂ……漏れ電流ガード電極
、２２……検電碍子、２３，２４……微少電流検
出器、２５，２６……光フアイバー、２７……変
換・判定部。
FIG. 1 is a structural explanatory diagram showing one embodiment of a vacuum degree drop detection device according to the present invention, and FIG. 2 is a structural explanatory diagram showing another embodiment of the present invention. 10...Vacuum switch, 11, 11A, 11B...
...Insulating tube, 12...Fixed electrode, 13...Movable electrode, 21, 21A, 21B...Leakage current guard electrode, 22...Electrical insulator, 23, 24...Minimum current detector, 25, 26... Optical fiber, 27...conversion/judgment section.
Claims (1)
に形成した漏れ電流ガード電極と、この漏れ電流
ガード電極に接続した検電碍子と、前記漏れ電流
ガード電極と真空開閉器の負荷側導電体または中
間シールドの間に接続した第１の微少電流検出器
と、前記検電碍子のアース端子側に挿設した第２
の微少電流検出器と、前記第１、第２の微少電流
検出器に光フアイバーを介して接続し、両検出値
の関係から真空度の適否を判定する変換・判定部
とを備えたことを特徴とする真空度低下検出装置
。 A leakage current guard electrode formed on the surface of an insulating tube constituting the vacuum container of the vacuum switch, a voltage detecting insulator connected to the leakage current guard electrode, and the leakage current guard electrode and the load side conductor of the vacuum switch or A first minute current detector connected between the intermediate shield, and a second minute current detector inserted into the ground terminal side of the voltage detecting insulator.
a minute current detector, and a conversion/judgment unit that is connected to the first and second minute current detectors via an optical fiber and determines whether or not the degree of vacuum is appropriate based on the relationship between the detected values. Characteristic vacuum level drop detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9814688U JPH0220133U (en) | 1988-07-25 | 1988-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9814688U JPH0220133U (en) | 1988-07-25 | 1988-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0220133U true JPH0220133U (en) | 1990-02-09 |
Family
ID=31324149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9814688U Pending JPH0220133U (en) | 1988-07-25 | 1988-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220133U (en) |
-
1988
- 1988-07-25 JP JP9814688U patent/JPH0220133U/ja active Pending
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