JPS6117215B2 - - Google Patents
Info
- Publication number
- JPS6117215B2 JPS6117215B2 JP54027855A JP2785579A JPS6117215B2 JP S6117215 B2 JPS6117215 B2 JP S6117215B2 JP 54027855 A JP54027855 A JP 54027855A JP 2785579 A JP2785579 A JP 2785579A JP S6117215 B2 JPS6117215 B2 JP S6117215B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transformer
- inspection
- input device
- current
- 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
- 238000007689 inspection Methods 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2785579A JPS55120332A (en) | 1979-03-09 | 1979-03-09 | Inspecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2785579A JPS55120332A (en) | 1979-03-09 | 1979-03-09 | Inspecting circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55120332A JPS55120332A (en) | 1980-09-16 |
JPS6117215B2 true JPS6117215B2 (enrdf_load_stackoverflow) | 1986-05-06 |
Family
ID=12232522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2785579A Granted JPS55120332A (en) | 1979-03-09 | 1979-03-09 | Inspecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55120332A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5743523A (en) * | 1980-08-29 | 1982-03-11 | Hitachi Ltd | Bus protecting current differential relay inspecting system |
-
1979
- 1979-03-09 JP JP2785579A patent/JPS55120332A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS55120332A (en) | 1980-09-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2608701B2 (ja) | 保護装置の点検回路 | |
US4466041A (en) | Fault protection system for power supplies that use ferro-resonant transformers | |
US5768077A (en) | Earthing wire disconnection detection apparatus and leakage detection apparatus having an earthing wire disconnection detection function conductor | |
JPH04222417A (ja) | 差動電流保護回路 | |
US3303390A (en) | Distance relaying | |
JPS6117215B2 (enrdf_load_stackoverflow) | ||
US20020080535A1 (en) | Multiple ground fault trip function system and method for same | |
US3414772A (en) | Differential relay with restraining means responsive to transformer bank voltage | |
Masson | Circuit for the dynamic control of magnetic flux in current transformers | |
US6307725B1 (en) | Fault-current protective switchgear | |
US3668516A (en) | Apparatus for inspecting a.c. electric relay systems during the operation thereof by use of a high frequency modulated signal | |
US4217621A (en) | Circuit for detecting diode shorting | |
JPH08162332A (ja) | 計器用変流器への配線断線試験回路 | |
US4013952A (en) | Means for current measuring in static convertors | |
JPH0145294B2 (enrdf_load_stackoverflow) | ||
JPS6026412A (ja) | 保護継電器の点検装置 | |
US3114140A (en) | Pilot-wire systems | |
JPS5836111A (ja) | 保護継電器の点検装置 | |
JPH07131927A (ja) | 計器用変圧器の2次短絡保護装置 | |
JPH0334285B2 (enrdf_load_stackoverflow) | ||
JPH09233680A (ja) | 停電検出装置 | |
JPH01224674A (ja) | 計器用変成器およびこれを用いた電流検出装置 | |
SU412653A1 (enrdf_load_stackoverflow) | ||
JPH0396444A (ja) | き電システム | |
JPS627333A (ja) | 静止電力変換装置の欠相検出回路 |