JPS5217643A - 1 line grounding accident detecting relay apparatus - Google Patents
1 line grounding accident detecting relay apparatusInfo
- Publication number
- JPS5217643A JPS5217643A JP9315275A JP9315275A JPS5217643A JP S5217643 A JPS5217643 A JP S5217643A JP 9315275 A JP9315275 A JP 9315275A JP 9315275 A JP9315275 A JP 9315275A JP S5217643 A JPS5217643 A JP S5217643A
- Authority
- JP
- Japan
- Prior art keywords
- relay apparatus
- line grounding
- detecting relay
- grounding accident
- accident detecting
- 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
Abstract
PURPOSE: The sole detection of the 1 line grounding accident on the direct grounding system by judging the phase difference between the antiphase voltage and the zero-phase voltage on the basis of the line voltage.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9315275A JPS5217643A (en) | 1975-08-01 | 1975-08-01 | 1 line grounding accident detecting relay apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9315275A JPS5217643A (en) | 1975-08-01 | 1975-08-01 | 1 line grounding accident detecting relay apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5217643A true JPS5217643A (en) | 1977-02-09 |
JPS5731382B2 JPS5731382B2 (en) | 1982-07-05 |
Family
ID=14074555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9315275A Granted JPS5217643A (en) | 1975-08-01 | 1975-08-01 | 1 line grounding accident detecting relay apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5217643A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5998973U (en) * | 1982-12-23 | 1984-07-04 | 東陶機器株式会社 | flush urinal |
-
1975
- 1975-08-01 JP JP9315275A patent/JPS5217643A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5731382B2 (en) | 1982-07-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5217643A (en) | 1 line grounding accident detecting relay apparatus | |
JPS5234332A (en) | System disturbance detector | |
JPS528453A (en) | Fault detection relay | |
JPS5268938A (en) | One line earth ground trouble detecting relay | |
JPS5234340A (en) | Coded grounding system for wire-breaking detection | |
JPS5221636A (en) | Detecting relay of one line earthed trouble | |
JPS51127357A (en) | Protecting relay system | |
JPS51147734A (en) | Leak detecting apparatus | |
JPS5371244A (en) | Grounding direction relay system | |
JPS51126885A (en) | Inflation pressure detecting apparatus | |
JPS5288747A (en) | Protecting system for inverter | |
JPS51120511A (en) | Starting current detector of electrical vehicle | |
JPS51133740A (en) | Disconnection detection system | |
JPS5344850A (en) | Earthing direction relay | |
JPS52140842A (en) | Defectiveness detecting system for differential protection relay system | |
JPS5316840A (en) | Stepout detection and protection method for power system | |
JPS53138025A (en) | Protective equipment for abnormal operation of driver | |
JPS5373335A (en) | Relay system for detecting departure from harmony | |
JPS5314320A (en) | Detector of inverter operating condition | |
JPS525103A (en) | Electric car control system | |
JPS5253248A (en) | Directional relay | |
JPS52106514A (en) | Electric car protection apparatus | |
JPS5373336A (en) | System for detecting trouble in cable | |
JPS5262832A (en) | Course detect system of driverless car | |
JPS51115634A (en) | Protective relay |