JPS5226449A - Differential relay apparatus - Google Patents

Differential relay apparatus

Info

Publication number
JPS5226449A
JPS5226449A JP50102072A JP10207275A JPS5226449A JP S5226449 A JPS5226449 A JP S5226449A JP 50102072 A JP50102072 A JP 50102072A JP 10207275 A JP10207275 A JP 10207275A JP S5226449 A JPS5226449 A JP S5226449A
Authority
JP
Japan
Prior art keywords
relay apparatus
differential relay
ammeters
systemis
obviate
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
JP50102072A
Other languages
Japanese (ja)
Inventor
Hiroya Sakata
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 JP50102072A priority Critical patent/JPS5226449A/en
Publication of JPS5226449A publication Critical patent/JPS5226449A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: On inspecting whether or not all the systemis normally operated, the ammeters are inserted to the differential circuit, to be able to be tested rapidly and easily by actuating the ammeters only when testing, to obviate the error on the wiring.
COPYRIGHT: (C)1977,JPO&Japio
JP50102072A 1975-08-25 1975-08-25 Differential relay apparatus Pending JPS5226449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50102072A JPS5226449A (en) 1975-08-25 1975-08-25 Differential relay apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50102072A JPS5226449A (en) 1975-08-25 1975-08-25 Differential relay apparatus

Publications (1)

Publication Number Publication Date
JPS5226449A true JPS5226449A (en) 1977-02-28

Family

ID=14317550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50102072A Pending JPS5226449A (en) 1975-08-25 1975-08-25 Differential relay apparatus

Country Status (1)

Country Link
JP (1) JPS5226449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147943U (en) * 1984-03-14 1985-10-01 株式会社明電舎 ratio differential relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147943U (en) * 1984-03-14 1985-10-01 株式会社明電舎 ratio differential relay

Similar Documents

Publication Publication Date Title
JPS5239342A (en) Ballot terminal device which can be remote tested
JPS5216178A (en) Airtightness testing device
JPS5213642A (en) Panel board for temporary works
JPS52122446A (en) Circuit tester
JPS53141582A (en) Character test system of semiconductor device
JPS5441799A (en) Error checking device in punching machine
JPS5397894A (en) High frequency circuit for nuclear magnetism resonance device
JPS52122084A (en) Inspection system for semiconductor substrates
JPS5313447A (en) Operating panel for car tester
JPS549846A (en) Tester for automibile electronic controller
JPS51121229A (en) A console for a micro-computer
JPS5233440A (en) Automatic wiring test system
JPS5245234A (en) Device for testing circuit
JPS5247138A (en) Inspector for electronic fuel injector
JPS5250187A (en) Xxray inspecting device
JPS51131002A (en) Car inspection and examination device
JPS5232231A (en) Indicating device
JPS5232236A (en) Testing device for interrupt processing circuit
JPS5297776A (en) Tramcar circuit line insulation testing apparatus
JPS5362953A (en) Test method for logical device
JPS5233556A (en) Leakage test method
JPS52152254A (en) Operation checking method of electronic apparatus
JPS524897A (en) Gas detector
JPS5269109A (en) Testing apparatus for electric car
JPS5219032A (en) Ic memory function testing method