SE8302829L - CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATING - Google Patents
CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATINGInfo
- 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
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)
- Motor And Converter Starters (AREA)
- Control Of Electric Motors In General (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>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823219199 DE3219199C2 (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) | DE3219199C2 (en) |
GB (1) | GB2120877B (en) |
SE (1) | SE451783B (en) |
Families Citing this family (5)
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)
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 |
-
1982
- 1982-05-21 DE DE19823219199 patent/DE3219199C2/en not_active Expired
-
1983
- 1983-05-13 CH CH261483A patent/CH658953A5/en not_active IP Right Cessation
- 1983-05-19 SE SE8302829A patent/SE451783B/en not_active IP Right Cessation
- 1983-05-20 GB GB08313988A patent/GB2120877B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH658953A5 (en) | 1986-12-15 |
GB2120877B (en) | 1985-09-11 |
DE3219199C2 (en) | 1987-04-16 |
DE3219199A1 (en) | 1983-11-24 |
GB2120877A (en) | 1983-12-07 |
GB8313988D0 (en) | 1983-06-29 |
SE8302829D0 (en) | 1983-05-19 |
SE451783B (en) | 1987-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR860003746A (en) | Electric blanket | |
KR830004580A (en) | Starters and heat protectors for refrigerators Motor-compressor units | |
JPS5510080A (en) | Preheating control device for engine | |
SE8302829D0 (en) | CLUTCH CIRCUIT FOR MONITORING OF ELECTRICALLY DRIVED ENGINE HEATING | |
SE8107862L (en) | TENDSYSTEM | |
KR870005726A (en) | Electric discharge processing equipment | |
KR880009533A (en) | How to prevent corrosion of microwave ovens and terminals with heating chamber temperature detection circuit | |
SE8005497L (en) | SET TO REGULATE AN ELECTRIC ENGINE | |
JPS5746067A (en) | Glow plug preheating device | |
JPS5752649A (en) | Oxygen sensor heating device | |
JPS6432919A (en) | Overheat preventing device | |
GB1263373A (en) | Safety devices for electrical heating apparatus | |
JPS5736680A (en) | Heat-sensitive recording system | |
GB793783A (en) | Improvements in and relating to electric control or indicating circuits | |
JPS55118524A (en) | Temperature control device for heater device | |
EP0140844A3 (en) | Level measuring device for liquids, particularly for controlling lubricant level in internal combustion engines | |
KR860000516A (en) | Control Unit of Air Conditioner | |
SU120231A1 (en) | Device for automatically controlling the power of a two-speed asynchronous fan motor | |
FR2450526A1 (en) | Electric drill overheating protection circuit - has resistive temp. sensor in motor windings connected to triac to operate acoustic warning | |
JPS5730698A (en) | Protection device for power steering unit | |
JPS55163417A (en) | Liquid level alarm | |
JPS5640037A (en) | Detecting device for operation of temperature controller in cooling or heating apparatus | |
JPS5621207A (en) | Temperature control unit | |
JPS5463745A (en) | Automatic anti-dewing device of drums | |
JPS58133875U (en) | Food vending machine safety device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8302829-0 Effective date: 19921204 Format of ref document f/p: F |