JPS441371B1 - - Google Patents

Info

Publication number
JPS441371B1
JPS441371B1 JP3027966A JP3027966A JPS441371B1 JP S441371 B1 JPS441371 B1 JP S441371B1 JP 3027966 A JP3027966 A JP 3027966A JP 3027966 A JP3027966 A JP 3027966A JP S441371 B1 JPS441371 B1 JP S441371B1
Authority
JP
Japan
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
JP3027966A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS441371B1 publication Critical patent/JPS441371B1/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/40—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to ratio of voltage and current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0069—Details of emergency protective circuit arrangements concerning transmission of signals by means of light or heat rays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Inverter Devices (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Photovoltaic Devices (AREA)
JP3027966A 1965-05-14 1966-05-14 Pending JPS441371B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20476/65A GB1081576A (en) 1965-05-14 1965-05-14 Improvements in electrical measuring systems

Publications (1)

Publication Number Publication Date
JPS441371B1 true JPS441371B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-01-22

Family

ID=10146540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3027966A Pending JPS441371B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-05-14 1966-05-14

Country Status (4)

Country Link
US (1) US3467858A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS441371B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1516931A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1081576A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE338175B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1968-11-15 1971-08-30 Aga Ab
US3735250A (en) * 1970-07-08 1973-05-22 Shibaura Electric Comp Fault detecting apparatus for a capacitor type potential divider having an amplifier
US3758826A (en) * 1970-10-01 1973-09-11 G Zizola Photoelectronic safety device
US3696366A (en) * 1971-03-22 1972-10-03 Edwards Co Ground detector system having fast response and decoupling of detector circuit
US3754149A (en) * 1972-06-19 1973-08-21 Radiation Dynamics Optical detector for detecting rectifier tube failures and rf electrical discharges
US3842403A (en) * 1973-03-16 1974-10-15 Warwick Electronics Inc Optical remote control system
CH623963A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1977-10-28 1981-06-30 Bbc Brown Boveri & Cie
US4393518A (en) * 1981-01-16 1983-07-12 Bell Telephone Laboratories, Incorporated Optical communication arrangement
DE3712190A1 (de) * 1987-04-10 1988-10-27 Bbc Brown Boveri & Cie Elektrischer wandler
US5448161A (en) * 1992-07-24 1995-09-05 Lightning Protection Technology Transformer-coupled photodiode circuit for lightning and other light pulse detection
US5384534A (en) * 1992-10-21 1995-01-24 Honeywell Inc. Self-powered electro-optic rotational position sensor with magnetic pickup

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548796A (en) * 1947-06-02 1951-04-10 Rca Corp Double polarity pulse generator system
US2717992A (en) * 1951-10-20 1955-09-13 Itt Transient surge detector
US2689949A (en) * 1952-05-15 1954-09-21 Atomic Energy Commission Telementering system
US3048744A (en) * 1953-08-25 1962-08-07 English Electric Co Ltd Electrical protective relay systems
US2990516A (en) * 1956-05-29 1961-06-27 John C Simons Jr Pulse-width modulated amplifier and method
US3287636A (en) * 1962-07-24 1966-11-22 Charbonnages De France Method and apparatus including condenser means for measuring the insulation from earth of electrical networks
GB991198A (en) * 1962-12-07 1965-05-05 Ass Elect Ind Improvements in and relating to apparatus for detecting the location of an electric line fault
US3223889A (en) * 1963-01-22 1965-12-14 Jr Edmund O Schweitzer Means for protecting power circuits and the like
US3346811A (en) * 1964-02-24 1967-10-10 Allis Chalmers Mfg Co Means for sensing conditions in high potential region and for transmitting such intelligence by light means to low potential regions

Also Published As

Publication number Publication date
GB1081576A (en) 1967-08-31
DE1516931A1 (de) 1970-01-08
US3467858A (en) 1969-09-16

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