Subject 'Electrical Drives'

Year:   2004/2005    2005/2006    2006/2007    2007/2008    2008/2009    

General description of the electrical drive, development history. Electrical drive as the element of an automatics control system and as a control object of the system. Alternative current, three-phase alternative current, rotating magnetic field. Classification of electrical motors, work regimes, warming. Electromechanical conversion. Direct current machine. Three- and single phase asynchronous motor. Contactor control of electrical motors. Soft start of the asynchronous motor, drives with frequency control.

- to provide basic knowledge about three-phase alternative current;
- to provide knowledge about the physical basics of the work of electrical motors, their construction;
- to describe the electrical drive as an automatic control system of an electrical motor,
- to give a survey and knowledge about the control problems, control devices and usage of electrical motors.

The student:
- knows the properties of three-phase alternative current and can compute three-phase electrical schemes;
- knows the physical basics of the work of electrical motors, can choose motors, depending on the field of usage;
- knows the control tasks and control possibilities of electrical motors, can compile contactor control schemes.

Lectures, tests (homework), laboratory works, written examination paper.

1. R.Lahtmets. Elektrotehnika I. Alalisvool. Tallinn.2002.

2. R.Lahtmets. Elektrotehnika II. Vahelduvvool. Tallinn.2002.

3. T.Lehtla. Elektriajamid. Tallinn. 2008, 201 lk;


4. J.Võrk. Automaatika alused. Tallinn, 2008, 83 lk


5. http://sise.ttu.ee/eta/Ope.htm , edasi vali: AME AME3120 vastavalt küsimuse sisule.

2012: RT*  

2011: RT*  

2010: RT*  

2009: RT*  

2008: RT*  

2007: RA*  

2006: RA*  

2005: RA  

2004: RA  

* Optional subject