FR974861A - Perfectionnements aux thermostats pour la protection d'installations électriques - Google Patents

Perfectionnements aux thermostats pour la protection d'installations électriques

Info

Publication number
FR974861A
FR974861A FR974861DA FR974861A FR 974861 A FR974861 A FR 974861A FR 974861D A FR974861D A FR 974861DA FR 974861 A FR974861 A FR 974861A
Authority
FR
France
Prior art keywords
thermostats
protection
electrical installations
installations
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
English (en)
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Application granted granted Critical
Publication of FR974861A publication Critical patent/FR974861A/fr
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
FR974861D 1947-11-13 1948-11-12 Perfectionnements aux thermostats pour la protection d'installations électriques Expired FR974861A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB974861X 1947-11-13

Publications (1)

Publication Number Publication Date
FR974861A true FR974861A (fr) 1951-02-27

Family

ID=10824489

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974861D Expired FR974861A (fr) 1947-11-13 1948-11-12 Perfectionnements aux thermostats pour la protection d'installations électriques

Country Status (1)

Country Link
FR (1) FR974861A (fr)

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