FR644814A - Process for the protection of transformers, switches, motors, generators and similar electrical devices - Google Patents

Process for the protection of transformers, switches, motors, generators and similar electrical devices

Info

Publication number
FR644814A
FR644814A FR644814DA FR644814A FR 644814 A FR644814 A FR 644814A FR 644814D A FR644814D A FR 644814DA FR 644814 A FR644814 A FR 644814A
Authority
FR
France
Prior art keywords
transformers
generators
motors
switches
protection
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)
Inventor
Max Buchholz
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 filed Critical
Application granted granted Critical
Publication of FR644814A publication Critical patent/FR644814A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
FR644814D 1926-12-15 1927-10-27 Process for the protection of transformers, switches, motors, generators and similar electrical devices Expired FR644814A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE644814X 1926-12-15
DE1774961X 1926-12-15

Publications (1)

Publication Number Publication Date
FR644814A true FR644814A (en) 1928-10-15

Family

ID=49182582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR644814D Expired FR644814A (en) 1926-12-15 1927-10-27 Process for the protection of transformers, switches, motors, generators and similar electrical devices

Country Status (2)

Country Link
US (1) US1774961A (en)
FR (1) FR644814A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483102A (en) * 1945-05-02 1949-09-27 Robert M Pierson Refractometer employing photosensitive devices and use of the same
US3774044A (en) * 1972-02-03 1973-11-20 R Langeron Method of detection in an alarm system

Also Published As

Publication number Publication date
US1774961A (en) 1930-09-02

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