JPS59173777A - 可変電圧可変周波数電力系統の地絡検出装置 - Google Patents
可変電圧可変周波数電力系統の地絡検出装置Info
- Publication number
- JPS59173777A JPS59173777A JP58049742A JP4974283A JPS59173777A JP S59173777 A JPS59173777 A JP S59173777A JP 58049742 A JP58049742 A JP 58049742A JP 4974283 A JP4974283 A JP 4974283A JP S59173777 A JPS59173777 A JP S59173777A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- zero
- phase
- ground fault
- 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
- 238000001514 detection method Methods 0.000 claims description 23
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58049742A JPS59173777A (ja) | 1983-03-23 | 1983-03-23 | 可変電圧可変周波数電力系統の地絡検出装置 |
EP84103022A EP0123129B1 (en) | 1983-03-23 | 1984-03-20 | Apparatus for detecting ground fault in variable-voltage variable-frequency power system |
DE8484103022T DE3478655D1 (en) | 1983-03-23 | 1984-03-20 | Apparatus for detecting ground fault in variable-voltage variable-frequency power system |
CA000450217A CA1210453A (en) | 1983-03-23 | 1984-03-22 | Apparatus for detecting ground fault in variable- voltage variable-frequency power system |
US06/592,440 US4589046A (en) | 1983-03-23 | 1984-03-22 | Apparatus for detecting ground fault in variable-voltage variable-frequency power system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58049742A JPS59173777A (ja) | 1983-03-23 | 1983-03-23 | 可変電圧可変周波数電力系統の地絡検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59173777A true JPS59173777A (ja) | 1984-10-01 |
JPH0331231B2 JPH0331231B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-05-02 |
Family
ID=12839635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58049742A Granted JPS59173777A (ja) | 1983-03-23 | 1983-03-23 | 可変電圧可変周波数電力系統の地絡検出装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59173777A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1983
- 1983-03-23 JP JP58049742A patent/JPS59173777A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0331231B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-05-02 |
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