FR643137A - Process for the protection of transformers, feedback coils, switches, motors, generators and other electrical devices - Google Patents

Process for the protection of transformers, feedback coils, switches, motors, generators and other electrical devices

Info

Publication number
FR643137A
FR643137A FR643137DA FR643137A FR 643137 A FR643137 A FR 643137A FR 643137D A FR643137D A FR 643137DA FR 643137 A FR643137 A FR 643137A
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 FR643137A publication Critical patent/FR643137A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR643137D 1926-11-02 1927-10-22 Process for the protection of transformers, feedback coils, switches, motors, generators and other electrical devices Expired FR643137A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE130549X 1926-11-02
DE280209T 1926-11-02
DE643137X 1926-11-02
DE261126X 1926-11-26
DE180127X 1927-01-18

Publications (1)

Publication Number Publication Date
FR643137A true FR643137A (en) 1928-09-10

Family

ID=59522784

Family Applications (1)

Application Number Title Priority Date Filing Date
FR643137D Expired FR643137A (en) 1926-11-02 1927-10-22 Process for the protection of transformers, feedback coils, switches, motors, generators and other electrical devices

Country Status (3)

Country Link
CH (1) CH130549A (en)
FR (1) FR643137A (en)
GB (1) GB280209A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755544C (en) * 1941-06-04 1953-08-31 Siemens Schuckertwerke A G Protective device for displaying malfunctions in liquid-filled containers, in particular electrical equipment and machine housings
DE1171310B (en) * 1960-02-26 1964-05-27 Cerberus Ag Fire alarm with an aerosol indicator for the detection of combustion products suspended in the air
DE102020114596A1 (en) 2020-06-02 2021-12-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Electric motor cooling arrangement

Also Published As

Publication number Publication date
GB280209A (en) 1928-11-08
CH130549A (en) 1928-12-15

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