JPS5341971A - Fault detector of electromagnetic device - Google Patents
Fault detector of electromagnetic deviceInfo
- Publication number
- JPS5341971A JPS5341971A JP11576276A JP11576276A JPS5341971A JP S5341971 A JPS5341971 A JP S5341971A JP 11576276 A JP11576276 A JP 11576276A JP 11576276 A JP11576276 A JP 11576276A JP S5341971 A JPS5341971 A JP S5341971A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic device
- fault detector
- fault
- thevariation
- inductance
- 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
- Relay Circuits (AREA)
Abstract
PURPOSE: To detect the fault of electromagnetic devices surely under a simple constitution by detecting the inductance of a exciting coil or thevariation of a current.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11576276A JPS5341971A (en) | 1976-09-29 | 1976-09-29 | Fault detector of electromagnetic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11576276A JPS5341971A (en) | 1976-09-29 | 1976-09-29 | Fault detector of electromagnetic device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5341971A true JPS5341971A (en) | 1978-04-15 |
JPS6215982B2 JPS6215982B2 (en) | 1987-04-10 |
Family
ID=14670404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11576276A Granted JPS5341971A (en) | 1976-09-29 | 1976-09-29 | Fault detector of electromagnetic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5341971A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05290704A (en) * | 1992-02-25 | 1993-11-05 | Internatl Business Mach Corp <Ibm> | Electromagnetic contactor |
JP2014049208A (en) * | 2012-08-29 | 2014-03-17 | Fuji Electric Co Ltd | Electromagnetic contactor |
JP2014154487A (en) * | 2013-02-13 | 2014-08-25 | Nippon Soken Inc | Contact fusion detecting system of relay |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4895166A (en) * | 1972-03-14 | 1973-12-06 | ||
JPS4935867A (en) * | 1972-08-09 | 1974-04-03 |
-
1976
- 1976-09-29 JP JP11576276A patent/JPS5341971A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4895166A (en) * | 1972-03-14 | 1973-12-06 | ||
JPS4935867A (en) * | 1972-08-09 | 1974-04-03 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05290704A (en) * | 1992-02-25 | 1993-11-05 | Internatl Business Mach Corp <Ibm> | Electromagnetic contactor |
JP2014049208A (en) * | 2012-08-29 | 2014-03-17 | Fuji Electric Co Ltd | Electromagnetic contactor |
JP2014154487A (en) * | 2013-02-13 | 2014-08-25 | Nippon Soken Inc | Contact fusion detecting system of relay |
Also Published As
Publication number | Publication date |
---|---|
JPS6215982B2 (en) | 1987-04-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS51117078A (en) | Magnetic field measuring method | |
JPS5341971A (en) | Fault detector of electromagnetic device | |
JPS532045A (en) | Coordinates read method and its device | |
JPS5219238A (en) | Phase deficit detection apparatus | |
JPS524896A (en) | Gas detector | |
JPS5357737A (en) | Magnetic control circuit | |
JPS5227699A (en) | Coin inspection circuit | |
JPS52106446A (en) | Absent phase detector | |
JPS5335939A (en) | Leakage safety device of electrical apparatus | |
JPS5356086A (en) | Magnetic field controller | |
JPS52102086A (en) | Inspecting method by vortex electric current | |
JPS5236742A (en) | Testing method of leak alarm device | |
JPS51137847A (en) | An earth trouble detecting apparatus with a detection circuit | |
JPS52154059A (en) | Protective device for dc motor | |
JPS51112400A (en) | Processing device for coin counting | |
JPS5290779A (en) | Electromagnetic brake-function detection device | |
JPS5333342A (en) | Discharge detector for electrical equipment | |
JPS52109114A (en) | Current transformer | |
JPS5418509A (en) | Chopper control device with bypass contactor | |
JPS5226294A (en) | Coin inspecting device | |
JPS5333341A (en) | Discharge detector for electrical equipment | |
JPS5213623A (en) | Mono-anode type d-c transformer | |
JPS5374219A (en) | Field current detector | |
JPS5363524A (en) | Winding for static induction electrical device | |
JPS531523A (en) | Film measuring device |