JPS5246456A - Protective relay device - Google Patents

Protective relay device

Info

Publication number
JPS5246456A
JPS5246456A JP50122566A JP12256675A JPS5246456A JP S5246456 A JPS5246456 A JP S5246456A JP 50122566 A JP50122566 A JP 50122566A JP 12256675 A JP12256675 A JP 12256675A JP S5246456 A JPS5246456 A JP S5246456A
Authority
JP
Japan
Prior art keywords
relay device
protective relay
locking
protective circuit
protective
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
Application number
JP50122566A
Other languages
Japanese (ja)
Inventor
Yuji Haishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP50122566A priority Critical patent/JPS5246456A/en
Publication of JPS5246456A publication Critical patent/JPS5246456A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: When a fault occurs in some devices of a protective relay device, by establishing a locking only channel and locking the main protective circuit of each terminal to prevent unnecessary operations, the fault elimination function is entrusted to the second reserve protective circuit and reliability is heightened.
COPYRIGHT: (C)1977,JPO&Japio
JP50122566A 1975-10-13 1975-10-13 Protective relay device Pending JPS5246456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50122566A JPS5246456A (en) 1975-10-13 1975-10-13 Protective relay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50122566A JPS5246456A (en) 1975-10-13 1975-10-13 Protective relay device

Publications (1)

Publication Number Publication Date
JPS5246456A true JPS5246456A (en) 1977-04-13

Family

ID=14839055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50122566A Pending JPS5246456A (en) 1975-10-13 1975-10-13 Protective relay device

Country Status (1)

Country Link
JP (1) JPS5246456A (en)

Similar Documents

Publication Publication Date Title
JPS52147288A (en) Misoperation prevention equipment
JPS5230381A (en) Semiconductor integrating circuit
JPS5246456A (en) Protective relay device
JPS536856A (en) Digital protective relay inspection system
JPS52151A (en) Distributor
JPS51128543A (en) Cable for photo communication
JPS535743A (en) Observati on device of bus protecting relay
JPS51134850A (en) D.c. earth protective relay
JPS52133590A (en) Screwless erminal device
JPS5219217A (en) Overcurrent limiting device
JPS51136147A (en) Phase comparing protection relay
JPS5369504A (en) Ring trip circuit
JPS5267268A (en) Formation of oxidization film
JPS5394712A (en) Ring trip circuit
JPS51119928A (en) Inverter protecting device
JPS51128000A (en) Discharge protection device
JPS5269526A (en) Color difference signal processor for color tv receiver
JPS51127341A (en) Inverter protective device inverter
JPS5218291A (en) Vibration machining device
JPS538718A (en) Trip system at many motors operating time
JPS51147919A (en) Memory device
JPS5365950A (en) Multi-terminal protective relay system
JPS51133745A (en) Digital protective relay system
JPS5321731A (en) Inverter device
JPS51133723A (en) Overvoltage prevention circuit