IT981649B - ELECTRIC MOTOR WITH SWITCHABLE POLES WITH PROTECTION DEVICE AGAINST OVERLOADS WORKING DEPENDING ON THE CURRENT - Google Patents

ELECTRIC MOTOR WITH SWITCHABLE POLES WITH PROTECTION DEVICE AGAINST OVERLOADS WORKING DEPENDING ON THE CURRENT

Info

Publication number
IT981649B
IT981649B IT2219273A IT2219273A IT981649B IT 981649 B IT981649 B IT 981649B IT 2219273 A IT2219273 A IT 2219273A IT 2219273 A IT2219273 A IT 2219273A IT 981649 B IT981649 B IT 981649B
Authority
IT
Italy
Prior art keywords
current
electric motor
protection device
device against
against overloads
Prior art date
Application number
IT2219273A
Other languages
Italian (it)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT981649B publication Critical patent/IT981649B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
IT2219273A 1972-03-29 1973-03-27 ELECTRIC MOTOR WITH SWITCHABLE POLES WITH PROTECTION DEVICE AGAINST OVERLOADS WORKING DEPENDING ON THE CURRENT IT981649B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722215414 DE2215414B2 (en) 1972-03-29 1972-03-29 POLE-CHANGING ELECTRIC MOTOR WITH CURRENT-DEPENDENT OVERLOAD PROTECTION

Publications (1)

Publication Number Publication Date
IT981649B true IT981649B (en) 1974-10-10

Family

ID=5840574

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2219273A IT981649B (en) 1972-03-29 1973-03-27 ELECTRIC MOTOR WITH SWITCHABLE POLES WITH PROTECTION DEVICE AGAINST OVERLOADS WORKING DEPENDING ON THE CURRENT

Country Status (4)

Country Link
DE (1) DE2215414B2 (en)
FR (1) FR2178148B1 (en)
GB (1) GB1405363A (en)
IT (1) IT981649B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0409286B1 (en) * 1984-07-28 1995-06-21 Mitsubishi Denki Kabushiki Kaisha Overheat preventing system of A.C. motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629848A (en) * 1951-05-26 1953-02-24 Westinghouse Electric Corp Thermal protection for single-phase motors
US2808555A (en) * 1956-06-25 1957-10-01 Gen Electric Motor protector circuit and thermal protector therefor

Also Published As

Publication number Publication date
FR2178148A1 (en) 1973-11-09
GB1405363A (en) 1975-09-10
FR2178148B1 (en) 1977-02-04
DE2215414B2 (en) 1972-12-28
DE2215414A1 (en) 1972-12-28

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