JPH0457774U - - Google Patents
Info
- Publication number
- JPH0457774U JPH0457774U JP10065790U JP10065790U JPH0457774U JP H0457774 U JPH0457774 U JP H0457774U JP 10065790 U JP10065790 U JP 10065790U JP 10065790 U JP10065790 U JP 10065790U JP H0457774 U JPH0457774 U JP H0457774U
- Authority
- JP
- Japan
- Prior art keywords
- output
- outputs
- insulation
- cubicle
- difference
- 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
- 238000009413 insulation Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Testing Relating To Insulation (AREA)
Description
第１図はこの考案の実施例を示す回路図、第２
図は第１図の回路の詳細な回路図、第３図は従来
例の回路図、第４図は第３図の回路の詳細な回路
図図である。
１……キユービクル、２……アンテナ、３……
絶縁判定器、１０……比較判定器、１１……オア
ー回路、１２……レベル比較器、１３……アンド
回路。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a circuit diagram showing an embodiment of this invention.
1 is a detailed circuit diagram of the circuit shown in FIG. 1, FIG. 3 is a circuit diagram of a conventional example, and FIG. 4 is a detailed circuit diagram of the circuit shown in FIG. 1... Cubicle, 2... Antenna, 3...
Insulation judgment device, 10... Comparison judgment device, 11... OR circuit, 12... Level comparator, 13... AND circuit.
Claims (1)
に設置されてあつて、前記各キユービクルに収納
されてある電気機器に絶縁異常が生じたときに発
生する電磁波を受信するアンテナと、 前記各アンテナの各出力を検出し、その検出値
と基準値とを比較し、その差が判定基準を満たし
たときに出力を出す絶縁判定器と、 前記各アンテナの各出力のレベル間の差が一定
値以上となつたときに出力を出すレベル比較器と
を備え、 前記絶縁判定器のうち、いずれかひとつでも出
力を出し、及び前記レベル比較器が出力を出した
とき、前記絶縁異常の発生を意味する出力を出す
ようにしてなる キユービクルの絶縁異常検出装置。[Claims for Utility Model Registration] An antenna installed in each of a plurality of cubicles arranged in parallel to receive electromagnetic waves generated when an insulation abnormality occurs in electrical equipment housed in each cubicle. and an insulation determiner that detects each output of each of the antennas, compares the detected value with a reference value, and outputs an output when the difference satisfies a determination criterion; and a level comparator that outputs an output when the difference between A cubicle insulation abnormality detection device that outputs an output that indicates the occurrence of an abnormality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10065790U JPH0457774U (en) | 1990-09-25 | 1990-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10065790U JPH0457774U (en) | 1990-09-25 | 1990-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457774U true JPH0457774U (en) | 1992-05-18 |
Family
ID=31843463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10065790U Pending JPH0457774U (en) | 1990-09-25 | 1990-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222537A (en) * | 2008-03-17 | 2009-10-01 | Meidensha Corp | Partial discharge detecting method by electromagnetic wave measurement |
| JP2010032450A (en) * | 2008-07-31 | 2010-02-12 | Meidensha Corp | Method of determining presence or absence of partial discharge electromagnetic wave from object electric apparatus |
-
1990
- 1990-09-25 JP JP10065790U patent/JPH0457774U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009222537A (en) * | 2008-03-17 | 2009-10-01 | Meidensha Corp | Partial discharge detecting method by electromagnetic wave measurement |
| JP2010032450A (en) * | 2008-07-31 | 2010-02-12 | Meidensha Corp | Method of determining presence or absence of partial discharge electromagnetic wave from object electric apparatus |
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