JPS54142542A - Phase relay - Google Patents

Phase relay

Info

Publication number
JPS54142542A
JPS54142542A JP4932578A JP4932578A JPS54142542A JP S54142542 A JPS54142542 A JP S54142542A JP 4932578 A JP4932578 A JP 4932578A JP 4932578 A JP4932578 A JP 4932578A JP S54142542 A JPS54142542 A JP S54142542A
Authority
JP
Japan
Prior art keywords
phase
transmission
slice level
circuit
failure
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
JP4932578A
Other languages
Japanese (ja)
Inventor
Takayoshi Iwamoto
Shiro Furusawa
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 JP4932578A priority Critical patent/JPS54142542A/en
Publication of JPS54142542A publication Critical patent/JPS54142542A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To enable one to decide a failure of the continuous trip permitted side of the phase relay transmission by deciding the three-phase AND condition of square wave output of the transmission slice level detector on applying three-phase balancing current as a check current.
CONSTITUTION: The input circuit 201, transmission slice level (L) 202, transmission part 204, adapter 214, carrier-frequency terminal equipment 215 and checkinginput applying circuit 218 are represented by three phases, the three-phase AND circuit 219 of the transmission slice level (L) 202 output and the transmission signal decision part 220 are provided. In this way, even if only one phase of square wave output of the transmission slice level detector (L) is made a failure of the continuous trip permitted side by certain cause, the three-phase AND condition of square waves 219R, 219S and 219T holds and is delivered to the transmission signal decision part 220.
COPYRIGHT: (C)1979,JPO&Japio
JP4932578A 1978-04-27 1978-04-27 Phase relay Pending JPS54142542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4932578A JPS54142542A (en) 1978-04-27 1978-04-27 Phase relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4932578A JPS54142542A (en) 1978-04-27 1978-04-27 Phase relay

Publications (1)

Publication Number Publication Date
JPS54142542A true JPS54142542A (en) 1979-11-06

Family

ID=12827820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4932578A Pending JPS54142542A (en) 1978-04-27 1978-04-27 Phase relay

Country Status (1)

Country Link
JP (1) JPS54142542A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10830265B2 (en) 2015-09-03 2020-11-10 Nok Corporation Gasket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10830265B2 (en) 2015-09-03 2020-11-10 Nok Corporation Gasket

Similar Documents

Publication Publication Date Title
JPS5614323A (en) Control method of electric power equipment
JPS54142542A (en) Phase relay
GB2008345A (en) Monitoring polyphase currents
ES8103469A1 (en) Static instantaneous overcurrent relay with low transient overreach
JPS54108248A (en) Static type trip device
JPS54113044A (en) Ground faulted phase detecting relay
JPS54136639A (en) Transformer protective relay
JPS5471347A (en) State detector
JPS5350776A (en) Phase discrimination circuit
JPS5385468A (en) Polyphase power detector
JPS5383046A (en) Digital protective relay
JPS5496755A (en) Static relay
JPS5494628A (en) Governor device of alternating current generator
JPS53105393A (en) Three phase x-ray generating unit
JPS53130078A (en) Ground-fault phase detecting relay
JPS5317948A (en) Protective circuit for overcurrent
JPS54122844A (en) Earthing protection relay system
JPS5579684A (en) Multiplex current type inverter system
JPS5366546A (en) Three-phase low voltage wiring system
JPS5759493A (en) Overcurrent detecting system at variable frequency controlling time
JPS54108247A (en) Static type protective relay
JPS5458845A (en) Step-out relay
JPS5374257A (en) Insulation monitor
JPS5475051A (en) Phase comparison relay
JPS5429031A (en) Disconnection detector relay