NEMA standard three-phase asynchronous motors (Design D, dedicated for oil well pump)

NEMA Oil Well Pump Motors are single speed, totally enclosed, self-ventilated, continuous duty, low voltage cage three phase induction motors which conform to NEMA MG1 design D Standard and have high slip ratio which is ≥5% , and large starting torque. The whole series motors adopt casting iron frames. The service factor is 1.15. And the motors have obtained Canada CSA Certification.

Technical Data of NEMA Series

Type

Rated

At full load

Efficiency

Locked

Current

A

under

230/460V

Locked

Torque

Rated

Torque

%

Max

Torque

Rated

Torque

%

Speed

r/min

Current

A

under

Connection

 

Power

Factor

cosφ

HP

KW

230/460/796V

575V

230/460/796V

575V

 

Synchronous Speed  1200r/min   60Hz

213T

3

2.2

1110

9.4/4.7/2.71

3.8

2△/△/Y

0.76

79.0

50/25

300

270

215T

5

3.7

1105

15/7.51/4.34

6.0

2△/△/Y

0.76

82.0

80/40

300

270

254T

7.5

5.5

1135

20.6/10.3/5.95

8.2

2△/△/Y

0.79

86.5

127/63.5

280

340

256T

10

7.5

1135

27.2/13.6/7.85

10.9

2△/△/Y

0.79

87.0

162/81

310

270

284T

15

11

1135

38/19/11

15.2

2△/△/Y

0.85

87.0

232/116

275

300

286T

20

15

1130

50.4/25.2/14.5

20.1

2△/△/Y

0.85

87.5

290/145

275

280

324T

25

18.5

1135

60.8/30.4/17.6

24.3

2△/△/Y

0.87

88.5

390/195

310

300

326T

30

22

1135

74.7/37.3/21.5

29.9

2△/△/Y

0.85

88.5

435/217.5

350

320

365T

40

30

1130

96.7/48.4/27.9

38.7

2△/△/Y

0.87

89.0

580/290

290

270

404T

50

37

1130

122/61.2/35.3

48.8

2△/△/Y

0.87

88.0

725/362.5

330

300

405T

60

45

1130

147/73.4/42.4

58.8

2△/△/Y

0.87

88.0

870/435

340

330

444T

75

55

1130

178/89.2/51.5

71.2

2△/△/Y

0.90

87.5

1085/542.5

280

270

445T

100

75

1130

238/119/68.7

95.2

2△/△/Y

0.90

87.5

1670/835

290

270

447T

125

90

1135

285/142.5/82.3

114

2△/△/Y

0.88

90.0

1824/912

280

270

449T

150

110

1135

352/176/101.6

141

2△/△/Y

0.87

90.0

2170/1085

275

275

Outline and Mounting Dimensions

Frame

No.

      Dimensions(inch)

MAX

A

MAX

B

C

D

E

2F

G

H

J

N-W

O

P

R

S

U

T

MIN

V

MIN

ES

AA

AB

BA

 

213T

10.5

7.5

18

5.25

4.25

5.5

0.71

0.41

2.4

3.38

10.6

10.4

1.201

0.312

1.375

1.73

3.12

2.41

1

8.5

3.5

 

215T

9

19.5

7

 

254T

12.5

10.3

23.5

6.25

5

8.25

0.79

0.53

2.4

4

12. 9

12.6

1.416

0.375

1.625

2.05

3.75

2.91

1-1/2

10.5

4.25

 

256T

12

25.3

10

 

284T

14

12.4

26.6

7

5.5

9.5

0.87

0.53

2.8

4.62

14.3

14

1.591

0.5

1.875

2.05

4.38

3.28

1-1/2

11.5

4.75

 

286T

13.9

28.1

11

 

324T

16

13.5

29.6

8

6.25

10.5

0.99

0.66

2.8

5.25

16

15.7

1.845

0.5

2.125

2.44

5.00

3.91

2

14.5

5.25

 

326T

15

31.2

12

 

365T

17

16

33.5

9

7

12.25

1.102

0.66

3

5.88

18.13

17.5

2.021

0.625

2.44

2.44

5.62

4.28

3

15.0

5.88

 

404T

20

15.5

36.5

10

8

12.25

1.18

0.81

3.2

7.25

21.1

21.6

2.45

0.75

2.875

2.84

7.00

5.65

3

19

6.62

 

405T

17

38.1

13.75

 

444T

22

18.5

41.9

11

9

14.5

1.38

0.81

3.4

8.5

23

23.5

2.88

0.875

3.375

3.47

8.25

6.91

2×3

20

7.5

 

445T

20.5

44

16.5

 

447T

22

24

47.4

11

9

20

1.38

0.81

3.4

8.5

23

23.5

2.88

0.875

3.375

3.47

8.5

6.91

2×3

20

7.5

 

449T

22

31

58

25

1.58

4.25

7.01

 

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