FR1403698A - Three-phase undervoltage relay - Google Patents

Three-phase undervoltage relay

Info

Publication number
FR1403698A
FR1403698A FR973367A FR973367A FR1403698A FR 1403698 A FR1403698 A FR 1403698A FR 973367 A FR973367 A FR 973367A FR 973367 A FR973367 A FR 973367A FR 1403698 A FR1403698 A FR 1403698A
Authority
FR
France
Prior art keywords
undervoltage relay
phase undervoltage
phase
relay
undervoltage
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.)
Expired
Application number
FR973367A
Other languages
French (fr)
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Priority to FR973367A priority Critical patent/FR1403698A/en
Priority to BE660971D priority patent/BE660971A/xx
Priority to CH388065A priority patent/CH413060A/en
Priority to DE19651463039 priority patent/DE1463039C/en
Priority to GB1896565A priority patent/GB1100633A/en
Application granted granted Critical
Publication of FR1403698A publication Critical patent/FR1403698A/en
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
    • H02H3/343—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 phase sequence analysers
    • 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
    • H02H3/24—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 undervoltage or no-voltage
    • H02H3/253—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 undervoltage or no-voltage for multiphase applications, e.g. phase interruption
FR973367A 1964-05-05 1964-05-05 Three-phase undervoltage relay Expired FR1403698A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR973367A FR1403698A (en) 1964-05-05 1964-05-05 Three-phase undervoltage relay
BE660971D BE660971A (en) 1964-05-05 1965-03-11
CH388065A CH413060A (en) 1964-05-05 1965-03-19 Three-phase undervoltage relay
DE19651463039 DE1463039C (en) 1964-05-05 1965-05-04 Three-phase voltage minimum relay
GB1896565A GB1100633A (en) 1964-05-05 1965-05-05 Minimum voltage three-phase relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR973367A FR1403698A (en) 1964-05-05 1964-05-05 Three-phase undervoltage relay

Publications (1)

Publication Number Publication Date
FR1403698A true FR1403698A (en) 1965-06-25

Family

ID=8829327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR973367A Expired FR1403698A (en) 1964-05-05 1964-05-05 Three-phase undervoltage relay

Country Status (4)

Country Link
BE (1) BE660971A (en)
CH (1) CH413060A (en)
FR (1) FR1403698A (en)
GB (1) GB1100633A (en)

Also Published As

Publication number Publication date
BE660971A (en) 1965-09-13
DE1463039B2 (en) 1972-12-28
DE1463039A1 (en) 1969-03-27
GB1100633A (en) 1968-01-24
CH413060A (en) 1966-05-15

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