SE8302829L - CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATING - Google Patents

CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATING

Info

Publication number
SE8302829L
SE8302829L SE8302829A SE8302829A SE8302829L SE 8302829 L SE8302829 L SE 8302829L SE 8302829 A SE8302829 A SE 8302829A SE 8302829 A SE8302829 A SE 8302829A SE 8302829 L SE8302829 L SE 8302829L
Authority
SE
Sweden
Prior art keywords
motor
monitoring
engine heating
clutch circuit
electrically
Prior art date
Application number
SE8302829A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8302829D0 (en
SE451783B (en
Inventor
H Rollecke
Original Assignee
Hartmann & Braun 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 Hartmann & Braun Ag filed Critical Hartmann & Braun Ag
Publication of SE8302829D0 publication Critical patent/SE8302829D0/en
Publication of SE8302829L publication Critical patent/SE8302829L/en
Publication of SE451783B publication Critical patent/SE451783B/en

Links

Classifications

    • 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
    • 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
    • H02H7/0816—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 concerning the starting sequence, e.g. limiting the number of starts per time unit, monitoring speed during starting

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Control Of Electric Motors In General (AREA)
  • Motor And Converter Starters (AREA)

Abstract

A motor protective relay 10 with electrically imaged thermal time constants 7,11 allows at least one motor run-up even in the warm state of the motor, and takes account of the different cooling periods when running and stationary. Circuit 2,3,5,6 supplies store capacitor 7 with a signal which depends upon the square of the motor current to be monitored, and a time control unit (14) determines the number of times the motor (M) switches on and off in unit time and in dependence thereon alters the content of the store (7) in such a way that this represents a measure of the operating temperature for the motor. <IMAGE>
SE8302829A 1982-05-21 1983-05-19 CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATING SE451783B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823219199 DE3219199A1 (en) 1982-05-21 1982-05-21 CIRCUIT ARRANGEMENT FOR MONITORING THE HEATING OF ELECTRICALLY OPERATED MOTORS

Publications (3)

Publication Number Publication Date
SE8302829D0 SE8302829D0 (en) 1983-05-19
SE8302829L true SE8302829L (en) 1983-11-22
SE451783B SE451783B (en) 1987-10-26

Family

ID=6164225

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8302829A SE451783B (en) 1982-05-21 1983-05-19 CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATING

Country Status (4)

Country Link
CH (1) CH658953A5 (en)
DE (1) DE3219199A1 (en)
GB (1) GB2120877B (en)
SE (1) SE451783B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401447A1 (en) * 1994-01-19 1995-07-27 Rhebau Rheinische Beton Und Ba Protection circuit for pump motors
US6294888B1 (en) * 1999-03-12 2001-09-25 Eaton Corporation Frequent start protection and economizer control for a motor starter
US6297607B1 (en) * 1999-03-12 2001-10-02 Eaton Corporation Thermal compensation control for a motor starter
FR2958339B1 (en) * 2010-03-30 2012-11-23 Valeo Equip Electr Moteur METHOD FOR CONTROLLING THE RESTART FUNCTION OF A SYSTEM FOR AUTOMATIC STARTING / STOPPING OF A THERMAL MOTOR OF A VEHICLE, AND CORRESPONDING SYSTEM
GB201020258D0 (en) * 2010-11-30 2011-01-12 B D G El S P A Motor control systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3942074A (en) * 1974-09-27 1976-03-02 General Electric Company Static overcurrent relay
CH623431A5 (en) * 1978-02-03 1981-05-29 Sprecher & Schuh Ag Circuit for simulating the heat budget of an electrical apparatus or machine

Also Published As

Publication number Publication date
GB8313988D0 (en) 1983-06-29
DE3219199C2 (en) 1987-04-16
GB2120877B (en) 1985-09-11
GB2120877A (en) 1983-12-07
CH658953A5 (en) 1986-12-15
SE8302829D0 (en) 1983-05-19
SE451783B (en) 1987-10-26
DE3219199A1 (en) 1983-11-24

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