Dc motors unit i

Post on 20-May-2015

436 views 5 download

Tags:

Transcript of Dc motors unit i

1

ELECTRICAL MACHINESName : Mrs.A.Sangari & Mrs.P.T.Subasini Designation : Sr. Lecturer & Lecturer

Department : Electrical and Electronics Engineering

Subject code : 131307Year : II ECE A & BUnit : ITitle : DC MOTORS

2

DC MOTORS

• Principle of operation – Back emf and torque equation –

Characteristics of series, shunt and compound motors –

Starting of DC motors – Types of starters – Speed control

of DC series and shunt motors.

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26