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close this bookElectrical Machines - Basic Vocational Knowledge
close this folder7. Single-phase alternating current motors
close this folder7.4. Single-phase commutator motors (universal motors)
View the document7.4.1. Assembly
View the document7.4.2. Operating principles
View the document7.4.3. Operational behaviour
View the document7.4.4. Technical data

7.4.4. Technical data

Foot commutator motors


Figure 123 - Dimensional images of a foot commutator motor (e.g. 70/IM 1001)

(1) Length side, (2) Drive side, 1;2 Variable

Survey 18 - Characteristic values of foot commutator motors

Design/nominal size

Rated current

Rated speed

Power input

Power output


A

rpm

W

W

70/IM 1001

0.2

3000

30

12


0.15

3000

27.5

16


0.11

5000

25

12


0.27

5000

48

25

87/IM 1001

0.26

3000

57

25


0.48

3000

85

40


0.55

3000

92

50


0.45

5000

95

40


0.36

5000

140

80


0.78

8000

165

100


1.1

8000

210

125

119/IM 1001

1.2

3000

180

125


1.7

5000

300

200


2.2

8000

450

320

Flange commutator motors


Figure 124 - Dimensional images of a flange commutator motor (e.g. 70/IM 3001)

(1) Length side, (2) Drive side, 1;2 Variable, (3) Earthing screw

Survey 19 - Characteristic values of flange commutator motors

Design/nominal size

Rated current

Rated speed

Power input

Power output


A

rpm

W

W

70/IM 3001

0.2

3000

30

12


0.15

3000

27.5

16


0.11

5000

25

12


0.27

5000

48

25

87/IM 3001

0.26

3000

57

25


0.48

3000

85

40

without terminal boxes

0.45

5000

95

40


0.78

8000

165

100

87/IM 3001

0.55

3000

92

50

with terminal boxes

0.63

5000

140

80


1.1

8000

210

125

119/IM 3001

1.2

3000

180

125


1.7

5000

300

200


2.2

8000

450

320

Built-in commutator motors

Survey 20 - Characteristic values of built-in commutator motors

Design/nominal size

Rated voltage (Ws)

Rated current

Power input

Power output

Speed


V

A

W

W

rpm

Nominal sizes

220

0.6

105

50

3000



0.72

125

63

3000



0.86

165

80

3000

87/IM 5001


0.85

150

80

5000



1.0

175

100

5000



1.2

200

125

5000



1.2

235

125

8000



1.3

260

160

8000



1.65

315

200

8000

Nominal sizes

220

0.13

24

6

3000



0.17

28

8

3000



0.20

31

10

3000

52/IM 5001


0.18

37

10

5000



0.18

39

12

5000



0.25

47

16

5000



0.24

49

16

8000



0.30

55

20

8000



0.29

58

25

8000

Questions for repetition and control

1. How does a single-phase induction motor generate its rotating field?

2. Explain the operation of a three-phase asynchronous motor through a single-phase mains.

3. Explain the efficiency principles of the universal motor torque.

4. What must be heeded if a motor which had been connected to the alternating voltage mains, is to be driven by direct current?