JPS53141444A - Phase comparison protective relay - Google Patents

Phase comparison protective relay

Info

Publication number
JPS53141444A
JPS53141444A JP5541777A JP5541777A JPS53141444A JP S53141444 A JPS53141444 A JP S53141444A JP 5541777 A JP5541777 A JP 5541777A JP 5541777 A JP5541777 A JP 5541777A JP S53141444 A JPS53141444 A JP S53141444A
Authority
JP
Japan
Prior art keywords
phase comparison
power source
source end
protective relay
variable power
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
JP5541777A
Other languages
Japanese (ja)
Inventor
Masahide Muraoka
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 JP5541777A priority Critical patent/JPS53141444A/en
Publication of JPS53141444A publication Critical patent/JPS53141444A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To prevent an operation of unnecessary disconnection at a generation of external fault when the line is charged from a variable power source end, by selecting a phase comparison relay for variable power source end to power source end, if detected to be a line charge made from the variable power source end.
COPYRIGHT: (C)1978,JPO&Japio
JP5541777A 1977-05-16 1977-05-16 Phase comparison protective relay Pending JPS53141444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5541777A JPS53141444A (en) 1977-05-16 1977-05-16 Phase comparison protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5541777A JPS53141444A (en) 1977-05-16 1977-05-16 Phase comparison protective relay

Publications (1)

Publication Number Publication Date
JPS53141444A true JPS53141444A (en) 1978-12-09

Family

ID=12997989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5541777A Pending JPS53141444A (en) 1977-05-16 1977-05-16 Phase comparison protective relay

Country Status (1)

Country Link
JP (1) JPS53141444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5878734U (en) * 1981-11-19 1983-05-27 三菱電機株式会社 phase comparison relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5878734U (en) * 1981-11-19 1983-05-27 三菱電機株式会社 phase comparison relay

Similar Documents

Publication Publication Date Title
JPS528873A (en) Maximum demand monitor indication unit
JPS5330760A (en) Switch device for condenser
JPS53141444A (en) Phase comparison protective relay
JPS5211722A (en) Power failure protection circuit
JPS5321758A (en) Power supply for converter
JPS5414281A (en) Battery voltage detecting circuit
JPS5326523A (en) High-voltage generator circuit
JPS51127410A (en) Power generator for charging
JPS5216647A (en) Protection device for excess voltage
JPS52101441A (en) Increasing method of substations
JPS5429009A (en) Generation controller
JPS5232552A (en) Switch control circuit
JPS5340843A (en) Detector for step-out
JPS52116820A (en) Expectative load controller for power station
JPS5435322A (en) Inverter
JPS52106448A (en) Generator fluctuation suppressor
JPS5324551A (en) Power control circuit
JPS528872A (en) Maximum demand electric power indicator
JPS5384138A (en) Over currenct protective circuit
JPS51136150A (en) Condenser switching device
JPS52138177A (en) Corrector for electric power meter
JPS5324543A (en) Enclosed type switchboard
JPS5231350A (en) Electric protective circuit
JPS51116926A (en) D.c. converter
JPS5419142A (en) Protective ralay