JPS5533659A - Troubled point locator of power cable - Google Patents
Troubled point locator of power cableInfo
- Publication number
- JPS5533659A JPS5533659A JP10714478A JP10714478A JPS5533659A JP S5533659 A JPS5533659 A JP S5533659A JP 10714478 A JP10714478 A JP 10714478A JP 10714478 A JP10714478 A JP 10714478A JP S5533659 A JPS5533659 A JP S5533659A
- Authority
- JP
- Japan
- Prior art keywords
- time
- surge
- optical
- optical signal
- detected
- 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
- Locating Faults (AREA)
Abstract
PURPOSE: To provide a device having excellent characteristics for locating a troubled point of a power cable by converting the surge detected at end into an optical signal by a photoelectric converting element and by transmitting the converted signal to the other end so that the time difference between the arriving time of the optical signal at the end and the surge detecting time at the other end.
CONSTITUTION: The surge, which is detected at the terminal A of a powef cable 1, is fed through a high frequency filter 3 and then has its time measured by a time meter 4. The surge detected the other terminal B is also fed through the high frequency filter 3 to an optical voltage switch 7. Thus, the optical signal pulses from a light source 10 are transmitted through an optical fiber 9 to a photoelectric converter 8. These optical signals are returned by the converter 8 into the electric pulse signals, which are measured by the time meter 4. The time period, for which the optical signal pulses run through the optical fiber 9 from the switch 7 to the coverter 8, is known to be constant because the length of the cable is known, so that the timing correction is made in advance in the time meter 4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10714478A JPS5533659A (en) | 1978-09-01 | 1978-09-01 | Troubled point locator of power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10714478A JPS5533659A (en) | 1978-09-01 | 1978-09-01 | Troubled point locator of power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5533659A true JPS5533659A (en) | 1980-03-08 |
Family
ID=14451621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10714478A Pending JPS5533659A (en) | 1978-09-01 | 1978-09-01 | Troubled point locator of power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5533659A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61210970A (en) * | 1985-03-14 | 1986-09-19 | Showa Electric Wire & Cable Co Ltd | Method for plotting accident point of cable line |
| JPS61278769A (en) * | 1985-06-03 | 1986-12-09 | Sumitomo Electric Ind Ltd | Power transmission and distribution line trouble section locating system |
| JPH02232570A (en) * | 1989-03-06 | 1990-09-14 | Tokyo Electric Power Co Inc:The | Fault detector for power equipment |
| CN106124925A (en) * | 2016-06-12 | 2016-11-16 | 广东电网有限责任公司惠州供电局 | The distance-finding method of transmission line malfunction and device and locating verification method and system |
-
1978
- 1978-09-01 JP JP10714478A patent/JPS5533659A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61210970A (en) * | 1985-03-14 | 1986-09-19 | Showa Electric Wire & Cable Co Ltd | Method for plotting accident point of cable line |
| JPS61278769A (en) * | 1985-06-03 | 1986-12-09 | Sumitomo Electric Ind Ltd | Power transmission and distribution line trouble section locating system |
| JPH02232570A (en) * | 1989-03-06 | 1990-09-14 | Tokyo Electric Power Co Inc:The | Fault detector for power equipment |
| CN106124925A (en) * | 2016-06-12 | 2016-11-16 | 广东电网有限责任公司惠州供电局 | The distance-finding method of transmission line malfunction and device and locating verification method and system |
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