FR1060403A - Improvement in thermal control devices for polyphase currents - Google Patents

Improvement in thermal control devices for polyphase currents

Info

Publication number
FR1060403A
FR1060403A FR1060403DA FR1060403A FR 1060403 A FR1060403 A FR 1060403A FR 1060403D A FR1060403D A FR 1060403DA FR 1060403 A FR1060403 A FR 1060403A
Authority
FR
France
Prior art keywords
improvement
control devices
thermal control
polyphase currents
polyphase
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique 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 La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Application granted granted Critical
Publication of FR1060403A publication Critical patent/FR1060403A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
FR1060403D 1952-07-18 1952-07-18 Improvement in thermal control devices for polyphase currents Expired FR1060403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1003331X 1952-07-18

Publications (1)

Publication Number Publication Date
FR1060403A true FR1060403A (en) 1954-04-01

Family

ID=9562908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1060403D Expired FR1060403A (en) 1952-07-18 1952-07-18 Improvement in thermal control devices for polyphase currents

Country Status (5)

Country Link
US (1) US2713623A (en)
BE (1) BE521499A (en)
DE (1) DE1003331B (en)
FR (1) FR1060403A (en)
GB (1) GB740282A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866035A (en) * 1955-02-17 1958-12-23 C T Electrical Controls Ltd Thermally operated electric switching mechanisms
BE549732A (en) * 1955-07-21
DE1014636B (en) * 1955-11-26 1957-08-29 Voigt & Haeffner Ag Arrangement for switches and relays in multi-phase alternating current circuits to actuate a trip device
US2964602A (en) * 1956-04-02 1960-12-13 Joe Davidson Snap acting mechanism
BE566795A (en) * 1957-05-03
DE1051952B (en) * 1957-08-06 1959-03-05 Siemens Ag Gear for bimetal overcurrent release
US3265831A (en) * 1962-06-21 1966-08-09 Westinghouse Electric Corp Thermally responsive electrical control device
US3743992A (en) * 1972-08-04 1973-07-03 Westinghouse Electric Corp Thermally responsive electrical control device for polyphase currents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1652527A (en) * 1924-11-08 1927-12-13 Westinghouse Electric & Mfg Co Protective device
US2177775A (en) * 1936-07-25 1939-10-31 Square D Co Circuit breaker
GB624957A (en) * 1947-07-17 1949-06-20 British Thomson Houston Co Ltd Improvements in and relating to current sensitive devices for the protection of polyphase circuits
BE488162A (en) * 1948-05-04

Also Published As

Publication number Publication date
US2713623A (en) 1955-07-19
BE521499A (en)
DE1003331B (en) 1957-02-28
GB740282A (en) 1955-11-09

Similar Documents

Publication Publication Date Title
CH319008A (en) Thermal switch
FR1060403A (en) Improvement in thermal control devices for polyphase currents
FR1074826A (en) Improvements made to manometrically controlled electrical contactors
FR1078796A (en) Improvement in boumerange
FR1079287A (en) Improvements in insulating materials for electrical devices
CH311960A (en) AC switchgear.
CH318608A (en) Lever disconnector with auxiliary disconnector
FR1056646A (en) Improvements to time devices
FR1072573A (en) Improvement in frontofocometers
FR1058088A (en) Improvement in heating devices
FR1047514A (en) Improvements to micronizing devices
AT185463B (en) AC switchgear
FR64444E (en) Improvement in projection devices
FR1163400A (en) Thermal switch
FR1063565A (en) Improvement in projection devices
FR1065905A (en) Contactor improvements
FR1062228A (en) Improvements to machines and electrical devices
FR1087822A (en) AC polyphase switch
FR1174508A (en) Thermal control device for polyphase currents
FR1077647A (en) Improvement in sanitary appliances
FR64388E (en) Improvements to projection devices
FR1137440A (en) Improvement in sliding contacts
FR1136517A (en) Improvements to electric latching relays
FR1134895A (en) Improvements to control circuits for electric heating devices
FR1107811A (en) Improvement in stereo-photographic devices