IT1098755B - SYSTEM TO PROTECT ELECTRIC POWER DISTRIBUTION CYCLES AGAINST EARTH FAULTS - Google Patents

SYSTEM TO PROTECT ELECTRIC POWER DISTRIBUTION CYCLES AGAINST EARTH FAULTS

Info

Publication number
IT1098755B
IT1098755B IT27131/78A IT2713178A IT1098755B IT 1098755 B IT1098755 B IT 1098755B IT 27131/78 A IT27131/78 A IT 27131/78A IT 2713178 A IT2713178 A IT 2713178A IT 1098755 B IT1098755 B IT 1098755B
Authority
IT
Italy
Prior art keywords
electric power
power distribution
protect electric
earth faults
against earth
Prior art date
Application number
IT27131/78A
Other languages
Italian (it)
Other versions
IT7827131A0 (en
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT7827131A0 publication Critical patent/IT7827131A0/en
Application granted granted Critical
Publication of IT1098755B publication Critical patent/IT1098755B/en

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
    • H02H3/34—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 of a three-phase system
    • H02H3/347—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 of a three-phase system using summation current transformers

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
IT27131/78A 1977-09-09 1978-08-30 SYSTEM TO PROTECT ELECTRIC POWER DISTRIBUTION CYCLES AGAINST EARTH FAULTS IT1098755B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83170977A 1977-09-09 1977-09-09

Publications (2)

Publication Number Publication Date
IT7827131A0 IT7827131A0 (en) 1978-08-30
IT1098755B true IT1098755B (en) 1985-09-18

Family

ID=25259676

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27131/78A IT1098755B (en) 1977-09-09 1978-08-30 SYSTEM TO PROTECT ELECTRIC POWER DISTRIBUTION CYCLES AGAINST EARTH FAULTS

Country Status (6)

Country Link
JP (1) JPS5453239A (en)
CA (1) CA1121497A (en)
DE (1) DE2838804A1 (en)
FR (1) FR2402959A1 (en)
GB (1) GB1604711A (en)
IT (1) IT1098755B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121044B (en) * 2014-07-24 2015-12-30 江苏永钢集团有限公司 The method of controlling security of generator jumped by a kind of turbine emergency protector connection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044395A (en) * 1976-08-02 1977-08-23 General Electric Company Ground fault protection system

Also Published As

Publication number Publication date
FR2402959A1 (en) 1979-04-06
DE2838804A1 (en) 1979-03-15
GB1604711A (en) 1981-12-16
IT7827131A0 (en) 1978-08-30
JPS5453239A (en) 1979-04-26
CA1121497A (en) 1982-04-06

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