JPS5429033A - Protective relay - Google Patents
Protective relayInfo
- Publication number
- JPS5429033A JPS5429033A JP9435477A JP9435477A JPS5429033A JP S5429033 A JPS5429033 A JP S5429033A JP 9435477 A JP9435477 A JP 9435477A JP 9435477 A JP9435477 A JP 9435477A JP S5429033 A JPS5429033 A JP S5429033A
- Authority
- JP
- Japan
- Prior art keywords
- protective relay
- suppression
- flow
- flow current
- fault
- 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
- Emergency Protection Circuit Devices (AREA)
Abstract
PURPOSE: To remove a useless operation even for out-flow end CT saturated, with a protection made capable even with an out-flow current coming to be half of an in-flow current, by means of providing a small suppression when for an internal fault and a large suppression when for an external fault.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9435477A JPS5429033A (en) | 1977-08-05 | 1977-08-05 | Protective relay |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9435477A JPS5429033A (en) | 1977-08-05 | 1977-08-05 | Protective relay |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5429033A true JPS5429033A (en) | 1979-03-03 |
JPS5750130B2 JPS5750130B2 (en) | 1982-10-26 |
Family
ID=14107940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9435477A Granted JPS5429033A (en) | 1977-08-05 | 1977-08-05 | Protective relay |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5429033A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56132112A (en) * | 1980-03-17 | 1981-10-16 | Tokyo Shibaura Electric Co | Differential protection relay |
US5265819A (en) * | 1990-09-10 | 1993-11-30 | Fuji Photo Film Co., Ltd. | Photographic film cassette |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161221A (en) * | 1982-03-19 | 1983-09-24 | 三菱電機株式会社 | Electromagnetic switching device |
JPH0664346U (en) * | 1993-02-19 | 1994-09-09 | 春日電機株式会社 | Movable arc runner-fixed structure of electromagnetic contactor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939042A (en) * | 1972-08-25 | 1974-04-11 |
-
1977
- 1977-08-05 JP JP9435477A patent/JPS5429033A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939042A (en) * | 1972-08-25 | 1974-04-11 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56132112A (en) * | 1980-03-17 | 1981-10-16 | Tokyo Shibaura Electric Co | Differential protection relay |
US5265819A (en) * | 1990-09-10 | 1993-11-30 | Fuji Photo Film Co., Ltd. | Photographic film cassette |
Also Published As
Publication number | Publication date |
---|---|
JPS5750130B2 (en) | 1982-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52120317A (en) | Field overvoltage protector for synchronous machine | |
JPS5429033A (en) | Protective relay | |
JPS535743A (en) | Observati on device of bus protecting relay | |
JPS5438752A (en) | Fault detecting device for thyristor valve | |
JPS5225021A (en) | Method for preparing a mole repellent | |
JPS53116531A (en) | Forced absorbing and exhausting type combustion device | |
JPS5219217A (en) | Overcurrent limiting device | |
JPS5413844A (en) | Spark plug | |
JPS5323027A (en) | Transformer core standing device | |
JPS5313148A (en) | Protective relay | |
JPS5214849A (en) | Protecting device for hysteresis motor | |
JPS5441442A (en) | Protective relay | |
JPS545547A (en) | Inspection system for digital current difference protective device | |
JPS51147920A (en) | Memory device | |
JPS5222739A (en) | Protection gap device | |
JPS5438539A (en) | Overvoltage protector for ct | |
JPS5422551A (en) | Generator protector | |
JPS5326055A (en) | Grasping device | |
JPS53107642A (en) | Digital protective relaying equipment | |
JPS53124797A (en) | Construction method for long object to bottom of sea | |
JPS5297140A (en) | Transformer protection means | |
JPS51121158A (en) | Transformer protection relay means | |
JPS546453A (en) | Over-voltage portective device of thyristor | |
JPS52129145A (en) | Safety device for self-running crane | |
JPS5321731A (en) | Inverter device |