JPS4886050A - - Google Patents

Info

Publication number
JPS4886050A
JPS4886050A JP48007445A JP744573A JPS4886050A JP S4886050 A JPS4886050 A JP S4886050A JP 48007445 A JP48007445 A JP 48007445A JP 744573 A JP744573 A JP 744573A JP S4886050 A JPS4886050 A JP S4886050A
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
JP48007445A
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 JPS4886050A publication Critical patent/JPS4886050A/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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/331—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers responsive to earthing of the neutral conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
JP48007445A 1972-01-18 1973-01-18 Pending JPS4886050A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21877172A 1972-01-18 1972-01-18

Publications (1)

Publication Number Publication Date
JPS4886050A true JPS4886050A (ja) 1973-11-14

Family

ID=22816443

Family Applications (2)

Application Number Title Priority Date Filing Date
JP48007445A Pending JPS4886050A (ja) 1972-01-18 1973-01-18
JP1978034806U Pending JPS53135539U (ja) 1972-01-18 1978-03-20

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1978034806U Pending JPS53135539U (ja) 1972-01-18 1978-03-20

Country Status (5)

Country Link
JP (2) JPS4886050A (ja)
AT (1) AT318051B (ja)
CA (1) CA1016262A (ja)
DE (1) DE2301757A1 (ja)
ZA (1) ZA728755B (ja)

Also Published As

Publication number Publication date
DE2301757A1 (de) 1973-07-26
AT318051B (de) 1974-09-25
CA1016262A (en) 1977-08-23
JPS53135539U (ja) 1978-10-26
AU5005272A (en) 1974-06-20
ZA728755B (en) 1973-08-29

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