JPS6248454B2 - - Google Patents
Info
- Publication number
- JPS6248454B2 JPS6248454B2 JP4752080A JP4752080A JPS6248454B2 JP S6248454 B2 JPS6248454 B2 JP S6248454B2 JP 4752080 A JP4752080 A JP 4752080A JP 4752080 A JP4752080 A JP 4752080A JP S6248454 B2 JPS6248454 B2 JP S6248454B2
- Authority
- JP
- Japan
- Prior art keywords
- ground
- phase
- ground voltage
- ground fault
- value
- 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
Links
- 238000000034 method Methods 0.000 claims description 23
- 238000012850 discrimination method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 229910001219 R-phase Inorganic materials 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4752080A JPS5717A (en) | 1980-04-11 | 1980-04-11 | Ground-fault phase identifying system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4752080A JPS5717A (en) | 1980-04-11 | 1980-04-11 | Ground-fault phase identifying system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5717A JPS5717A (en) | 1982-01-05 |
JPS6248454B2 true JPS6248454B2 (US07714131-20100511-C00024.png) | 1987-10-14 |
Family
ID=12777383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4752080A Granted JPS5717A (en) | 1980-04-11 | 1980-04-11 | Ground-fault phase identifying system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5717A (US07714131-20100511-C00024.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0522271Y2 (US07714131-20100511-C00024.png) * | 1986-12-11 | 1993-06-08 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59224628A (ja) * | 1983-06-06 | 1984-12-17 | 三井東圧化学株式会社 | 温室用炭酸ガスの供給制御方法 |
-
1980
- 1980-04-11 JP JP4752080A patent/JPS5717A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0522271Y2 (US07714131-20100511-C00024.png) * | 1986-12-11 | 1993-06-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS5717A (en) | 1982-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2735598B2 (ja) | 固体トリップ装置 | |
US5523938A (en) | Differential current fault protection for an AC/DC hybrid system and method therefor | |
WO1980000050A1 (en) | Method and apparatus for detecting faults in an electric power distribution system | |
US3699431A (en) | Selector circuit for determining faults in polyphase transmission systems | |
US3581152A (en) | Round protection and detecting for high voltage dc transmission system | |
JPS6248454B2 (US07714131-20100511-C00024.png) | ||
Daniel et al. | Three terminal line protection based on a superimposed component impedance relay | |
JP3287121B2 (ja) | 電圧低下検出回路 | |
JPS63265516A (ja) | 三相交流励磁装置 | |
JP3137029B2 (ja) | 系統連系装置における素子故障検出装置 | |
JPH1048286A (ja) | 非接地系架空送電線の地絡事故区間標定方法とその装置 | |
JPS6248452B2 (US07714131-20100511-C00024.png) | ||
JP3546396B2 (ja) | 高圧配電系統における地絡判別装置 | |
JP2702961B2 (ja) | 地絡回線選択装置 | |
JP3656824B2 (ja) | 地絡方向継電装置 | |
JPH05225891A (ja) | 漏電警報器の漏電感度測定方法 | |
JP3334008B2 (ja) | 単相3線式配線の中性線欠相検出装置 | |
JPH01170865A (ja) | 配電線地絡故障点検出装置 | |
JPS6248453B2 (US07714131-20100511-C00024.png) | ||
JP3028093B2 (ja) | 系統故障電流検出装置 | |
JPS61189119A (ja) | 断線検出装置 | |
KR910001232Y1 (ko) | 비접지 전로의 지락 경보장치 | |
JPS60173480A (ja) | 地絡電流方向判定装置 | |
SU1065951A1 (ru) | Устройство дл защиты сети переменного тока с изолированной нейтралью от однофазного замыкани на землю | |
JPH0843474A (ja) | 地中配電線の地絡事故原因判別装置 |