FR1167687A - Electrical protection relay device and systems using them - Google Patents

Electrical protection relay device and systems using them

Info

Publication number
FR1167687A
FR1167687A FR1167687DA FR1167687A FR 1167687 A FR1167687 A FR 1167687A FR 1167687D A FR1167687D A FR 1167687DA FR 1167687 A FR1167687 A FR 1167687A
Authority
FR
France
Prior art keywords
systems
relay device
protection relay
electrical protection
electrical
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
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Application granted granted Critical
Publication of FR1167687A publication Critical patent/FR1167687A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/16—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for conjoint, e.g. additive, operation of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/34—Energising current supplied by magnetic amplifier
    • 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
FR1167687D 1955-06-17 1956-05-04 Electrical protection relay device and systems using them Expired FR1167687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1754955A GB841866A (en) 1955-06-17 1955-06-17 Improvements in and relating to electromagnetic relays

Publications (1)

Publication Number Publication Date
FR1167687A true FR1167687A (en) 1958-11-27

Family

ID=10097132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1167687D Expired FR1167687A (en) 1955-06-17 1956-05-04 Electrical protection relay device and systems using them

Country Status (3)

Country Link
DE (1) DE1029077B (en)
FR (1) FR1167687A (en)
GB (1) GB841866A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508121A (en) * 1965-10-13 1970-04-21 Matsushita Electric Ind Co Ltd Alternating current electromagnetic apparatus
US11462345B2 (en) * 2019-09-30 2022-10-04 Rockwell Automation Technologies, Inc. Systems and methods for controlling contactor bounce

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573249A (en) * 1944-05-03 1951-10-30 Asea Ab Saturable reactor impedance relay

Also Published As

Publication number Publication date
DE1029077B (en) 1958-04-30
GB841866A (en) 1960-07-20

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