FR2020078B1 - - Google Patents

Info

Publication number
FR2020078B1
FR2020078B1 FR6934239A FR6934239A FR2020078B1 FR 2020078 B1 FR2020078 B1 FR 2020078B1 FR 6934239 A FR6934239 A FR 6934239A FR 6934239 A FR6934239 A FR 6934239A FR 2020078 B1 FR2020078 B1 FR 2020078B1
Authority
FR
France
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.)
Expired
Application number
FR6934239A
Other languages
French (fr)
Other versions
FR2020078A1 (es
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2020078A1 publication Critical patent/FR2020078A1/fr
Application granted granted Critical
Publication of FR2020078B1 publication Critical patent/FR2020078B1/fr
Expired 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
    • H02H3/34—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
    • 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
    • H02H3/08—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 excess current
    • H02H3/093—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 excess current with timing means
FR6934239A 1968-10-07 1969-10-07 Expired FR2020078B1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US76555268A 1968-10-07 1968-10-07
US76558268A 1968-10-07 1968-10-07
US76558368A 1968-10-07 1968-10-07

Publications (2)

Publication Number Publication Date
FR2020078A1 FR2020078A1 (es) 1970-07-10
FR2020078B1 true FR2020078B1 (es) 1973-05-25

Family

ID=27419612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6934239A Expired FR2020078B1 (es) 1968-10-07 1969-10-07

Country Status (5)

Country Link
BE (1) BE739905A (es)
BR (1) BR6913083D0 (es)
ES (1) ES371934A1 (es)
FR (1) FR2020078B1 (es)
GB (2) GB1292142A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000400A (en) * 1977-06-23 1979-01-04 Matthews G Overload protection circuit
US4255774A (en) * 1979-03-16 1981-03-10 General Electric Company Static instantaneous overcurrent relay with low transient overreach
US4513342A (en) * 1983-01-31 1985-04-23 General Electric Company Current-squared-time (i2 t) protection system
GB2140633A (en) * 1983-04-29 1984-11-28 Plessey Co Plc Load tripping circuits

Also Published As

Publication number Publication date
GB1292142A (en) 1972-10-11
BE739905A (es) 1970-03-16
FR2020078A1 (es) 1970-07-10
ES371934A1 (es) 1971-11-16
GB1292143A (en) 1972-10-11
BR6913083D0 (pt) 1973-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse