JPH0353583B2 - - Google Patents
Info
- Publication number
- JPH0353583B2 JPH0353583B2 JP56074699A JP7469981A JPH0353583B2 JP H0353583 B2 JPH0353583 B2 JP H0353583B2 JP 56074699 A JP56074699 A JP 56074699A JP 7469981 A JP7469981 A JP 7469981A JP H0353583 B2 JPH0353583 B2 JP H0353583B2
- Authority
- JP
- Japan
- Prior art keywords
- power cable
- corona
- signal
- optical
- measured
- 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
- 239000004020 conductor Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56074699A JPS57189074A (en) | 1981-05-18 | 1981-05-18 | Corona measuring method for power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56074699A JPS57189074A (en) | 1981-05-18 | 1981-05-18 | Corona measuring method for power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57189074A JPS57189074A (en) | 1982-11-20 |
| JPH0353583B2 true JPH0353583B2 (da) | 1991-08-15 |
Family
ID=13554728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56074699A Granted JPS57189074A (en) | 1981-05-18 | 1981-05-18 | Corona measuring method for power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57189074A (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6072578U (ja) * | 1983-10-21 | 1985-05-22 | 三菱電線工業株式会社 | ケ−ブルの部分放電測定装置 |
| JPH0718908B2 (ja) * | 1985-02-15 | 1995-03-06 | 昭和電線電纜株式会社 | 電力ケ−ブルの絶縁試験装置 |
| NO302494B1 (no) * | 1989-10-25 | 1998-03-09 | Hitachi Cable | Fremgangsmåte for deteksjon av en partiell utladning i en isolasjon av en elektrisk kraftkabel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5543465A (en) * | 1978-09-22 | 1980-03-27 | Showa Electric Wire & Cable Co Ltd | Detection method of partial discharge pulse |
| JPS5637567A (en) * | 1979-09-05 | 1981-04-11 | Central Res Inst Of Electric Power Ind | Noise rejection system in corona detection apparatus |
-
1981
- 1981-05-18 JP JP56074699A patent/JPS57189074A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5543465A (en) * | 1978-09-22 | 1980-03-27 | Showa Electric Wire & Cable Co Ltd | Detection method of partial discharge pulse |
| JPS5637567A (en) * | 1979-09-05 | 1981-04-11 | Central Res Inst Of Electric Power Ind | Noise rejection system in corona detection apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57189074A (en) | 1982-11-20 |
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