JPS54136382A - Partial discharge measuring circuit - Google Patents
Partial discharge measuring circuitInfo
- Publication number
- JPS54136382A JPS54136382A JP4400378A JP4400378A JPS54136382A JP S54136382 A JPS54136382 A JP S54136382A JP 4400378 A JP4400378 A JP 4400378A JP 4400378 A JP4400378 A JP 4400378A JP S54136382 A JPS54136382 A JP S54136382A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- detecting element
- high voltage
- partial discharge
- leds
- 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)
Abstract
PURPOSE: To detect partial discharge of test piece at high sensitivity by restricting the effect of external noise, by using light emitting diode as detecting element and inserting it into the high voltage side.
CONSTITUTION: If a test piece 1' is defective, a leak current flows through a detecting element 31 composed of two LEDs D1, D2 which are connected parallel in reverse direction to each other in the high voltage circuit side, and LEDs light up alternately. This light is passed into electron multiplier circuit 33, high pass filter 34, and waveform shaping circuit 35 to be inputted into a comparator-discriminator circuit consisting of operation circuit 37, etc. The output terminal of detecting element 2 delivers a pulse output of capacitor 1 which is charged and discharged with alternating-current voltage from the high voltage supply line, and this output is passed into a high pass filter 36 and is inputted into the operation circuit 37. In this circuit, external noise is discriminated, and the same output is compared with the reference value, so that presence or absence of insulation detect of the test piece may be indicated. Thus, by disposing the detecting element composed of LEDs at the high voltage side, partial discharge may be measured at high sensitivity.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4400378A JPS54136382A (en) | 1978-04-14 | 1978-04-14 | Partial discharge measuring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4400378A JPS54136382A (en) | 1978-04-14 | 1978-04-14 | Partial discharge measuring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54136382A true JPS54136382A (en) | 1979-10-23 |
Family
ID=12679519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4400378A Pending JPS54136382A (en) | 1978-04-14 | 1978-04-14 | Partial discharge measuring circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54136382A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707115A (en) * | 2016-11-29 | 2017-05-24 | 国网辽宁省电力有限公司沈阳供电公司 | Device using reflective high energy electron diffraction technology to detect high voltage cable partial discharge |
| JP2020109398A (en) * | 2018-12-28 | 2020-07-16 | パロ アルト リサーチ センター インコーポレイテッド | Partial discharge detector |
| JP2020109397A (en) * | 2018-12-28 | 2020-07-16 | パロ アルト リサーチ センター インコーポレイテッド | Partial discharge converter |
-
1978
- 1978-04-14 JP JP4400378A patent/JPS54136382A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707115A (en) * | 2016-11-29 | 2017-05-24 | 国网辽宁省电力有限公司沈阳供电公司 | Device using reflective high energy electron diffraction technology to detect high voltage cable partial discharge |
| JP2020109398A (en) * | 2018-12-28 | 2020-07-16 | パロ アルト リサーチ センター インコーポレイテッド | Partial discharge detector |
| JP2020109397A (en) * | 2018-12-28 | 2020-07-16 | パロ アルト リサーチ センター インコーポレイテッド | Partial discharge converter |
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