BE889836A - THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS - Google Patents

THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS

Info

Publication number
BE889836A
BE889836A BE0/205565A BE205565A BE889836A BE 889836 A BE889836 A BE 889836A BE 0/205565 A BE0/205565 A BE 0/205565A BE 205565 A BE205565 A BE 205565A BE 889836 A BE889836 A BE 889836A
Authority
BE
Belgium
Prior art keywords
organs
constant
electric motor
time
protection circuit
Prior art date
Application number
BE0/205565A
Other languages
French (fr)
Inventor
C Cadet
G Baurant
B Dumortier
G Souques
Original Assignee
Telemecanique Electrique
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 Telemecanique Electrique filed Critical Telemecanique Electrique
Publication of BE889836A publication Critical patent/BE889836A/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
    • H02H7/09—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 over-voltage; against reduction of voltage; against phase interruption
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
BE0/205565A 1980-08-04 1981-08-03 THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS BE889836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8017424A FR2488458A1 (en) 1980-08-04 1980-08-04 THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS

Publications (1)

Publication Number Publication Date
BE889836A true BE889836A (en) 1981-12-01

Family

ID=9244980

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/205565A BE889836A (en) 1980-08-04 1981-08-03 THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS

Country Status (11)

Country Link
AT (1) AT389961B (en)
BE (1) BE889836A (en)
CH (1) CH642199A5 (en)
DE (1) DE3129730A1 (en)
ES (1) ES8207661A1 (en)
FR (1) FR2488458A1 (en)
GB (1) GB2081995B (en)
IT (1) IT1137790B (en)
NL (1) NL8103660A (en)
NO (1) NO159470C (en)
SE (1) SE447685B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819118A (en) * 1988-06-02 1989-04-04 Westinghouse Electric Corp. Electromagnetic contactor tandem control system for thermal protection of a bidirectional motor drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH534444A (en) * 1972-05-23 1973-02-28 Sprecher & Schuh Ag Electronic motor protection relay with current-dependent tripping
CH540587A (en) * 1972-08-22 1973-08-15 Sprecher & Schuh Ag Circuit arrangement that represents a thermal image of electrical equipment that is dependent on electrical losses
DE2600472C3 (en) * 1976-01-08 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Overload protection device for an electrical machine
DE2939938C2 (en) * 1979-09-28 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Overload protection arrangement for an electrical machine
FR2468238A1 (en) * 1979-10-16 1981-04-30 Telemecanique Electrique Phase loss or overvoltage protector for motor - has signal fed to comparator via Zener network and driving cut=off relay in motor supply

Also Published As

Publication number Publication date
DE3129730A1 (en) 1982-02-25
SE8104643L (en) 1982-02-05
DE3129730C2 (en) 1990-05-31
AT389961B (en) 1990-02-26
GB2081995A (en) 1982-02-24
FR2488458A1 (en) 1982-02-12
NO812629L (en) 1982-02-05
ATA341381A (en) 1989-07-15
CH642199A5 (en) 1984-03-30
FR2488458B1 (en) 1984-05-18
SE447685B (en) 1986-12-01
IT8123345A0 (en) 1981-08-03
ES504510A0 (en) 1982-09-16
NL8103660A (en) 1982-03-01
IT1137790B (en) 1986-09-10
NO159470B (en) 1988-09-19
GB2081995B (en) 1985-01-09
ES8207661A1 (en) 1982-09-16
NO159470C (en) 1989-01-04

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: LA TELEMECANIQUE ELECTRIQUE

Effective date: 19930831