JPS6491067A - Fault point detection for power distribution system - Google Patents
Fault point detection for power distribution systemInfo
- Publication number
- JPS6491067A JPS6491067A JP24927187A JP24927187A JPS6491067A JP S6491067 A JPS6491067 A JP S6491067A JP 24927187 A JP24927187 A JP 24927187A JP 24927187 A JP24927187 A JP 24927187A JP S6491067 A JPS6491067 A JP S6491067A
- Authority
- JP
- Japan
- Prior art keywords
- fault point
- phase
- voltage
- moment
- fault
- 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.)
- Granted
Links
Landscapes
- Locating Faults (AREA)
Abstract
PURPOSE:To specify the position of a fault point on a trunk line or a branch line where the fault point is positioned, by measuring the moment of a change in a DC voltage waveform appearing with a dielectric breakdown at the fault point simultaneously and at the same position in terms of one phase and the remaining phase in which a pulse-like voltage is applied. CONSTITUTION:It is assumed that a fault point is located at a position AF in a phase A of a branch line 102 branched off a trunk line 100 separated from two side systems with zone switches 1 and 2 and with the removal of a fault at the fault point AF, insulation at the fault point is self-recovered. A left terminal of the switch 2 is short-circuited between phases while being charged with a DC voltage slightly smaller than a dielectric strength at the fault point through the phase A at a right terminal of the switch 1 and a pulse-like voltage is applied thereto to break insulation at the fault point. The moment of a change in a DC voltage waveform appearing with this dielectric breakdown is measured simultaneously and at the same position in terms of the phase A and the remaining phase B or C. Thus, the position of the fault point AF on the trunk line 100 or the branch line 10 where the fault point AF is located can be specified from a difference in the moment thus measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24927187A JPH0693001B2 (en) | 1987-10-02 | 1987-10-02 | Fault detection method for distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24927187A JPH0693001B2 (en) | 1987-10-02 | 1987-10-02 | Fault detection method for distribution system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6491067A true JPS6491067A (en) | 1989-04-10 |
| JPH0693001B2 JPH0693001B2 (en) | 1994-11-16 |
Family
ID=17190484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24927187A Expired - Fee Related JPH0693001B2 (en) | 1987-10-02 | 1987-10-02 | Fault detection method for distribution system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0693001B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016525210A (en) * | 2013-07-02 | 2016-08-22 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Problem detection in cable systems with fuses |
-
1987
- 1987-10-02 JP JP24927187A patent/JPH0693001B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016525210A (en) * | 2013-07-02 | 2016-08-22 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Problem detection in cable systems with fuses |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0693001B2 (en) | 1994-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |