JPS544341A - Protective relay system - Google Patents
Protective relay systemInfo
- Publication number
- JPS544341A JPS544341A JP7008377A JP7008377A JPS544341A JP S544341 A JPS544341 A JP S544341A JP 7008377 A JP7008377 A JP 7008377A JP 7008377 A JP7008377 A JP 7008377A JP S544341 A JPS544341 A JP S544341A
- Authority
- JP
- Japan
- Prior art keywords
- relay system
- protective relay
- operated
- braking
- relay
- 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.)
- Pending
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To prevent miss braking at trouble restored time, by providing a sequence circuit with which directional relay is operated at first, and braking instruction is issued, only when over current relay is operated afterwards.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7008377A JPS544341A (en) | 1977-06-14 | 1977-06-14 | Protective relay system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7008377A JPS544341A (en) | 1977-06-14 | 1977-06-14 | Protective relay system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS544341A true JPS544341A (en) | 1979-01-13 |
Family
ID=13421281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7008377A Pending JPS544341A (en) | 1977-06-14 | 1977-06-14 | Protective relay system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS544341A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6099440A (en) * | 1983-11-04 | 1985-06-03 | Hitachi Ltd | Low residual stress type rolled joint method |
-
1977
- 1977-06-14 JP JP7008377A patent/JPS544341A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6099440A (en) * | 1983-11-04 | 1985-06-03 | Hitachi Ltd | Low residual stress type rolled joint method |
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