FR640368A - Improvements to electrical relays - Google Patents

Improvements to electrical relays

Info

Publication number
FR640368A
FR640368A FR640368DA FR640368A FR 640368 A FR640368 A FR 640368A FR 640368D A FR640368D A FR 640368DA FR 640368 A FR640368 A FR 640368A
Authority
FR
France
Prior art keywords
electrical relays
relays
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Application granted granted Critical
Publication of FR640368A publication Critical patent/FR640368A/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
    • H02H3/44—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 the rate of change of electrical quantities
FR640368D 1926-09-02 1927-09-01 Improvements to electrical relays Expired FR640368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US640368XA 1926-09-02 1926-09-02

Publications (1)

Publication Number Publication Date
FR640368A true FR640368A (en) 1928-07-11

Family

ID=22053143

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640368D Expired FR640368A (en) 1926-09-02 1927-09-01 Improvements to electrical relays

Country Status (2)

Country Link
DE (1) DE605434C (en)
FR (1) FR640368A (en)

Also Published As

Publication number Publication date
DE605434C (en) 1934-11-13

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