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Electrical Current location:Shanghai Technical By-Products Int'l Corp. Co., Ltd. > Electrical
High Efficiency Motors

NEMA standard high efficiency three phase asynchronous motors are totally enclosed fan cooled type(TEFC).The design and the manufacture of the motors conform to National Electrical Manufacfurers Associafion(NEMA) with new style,carefully manufacturing,safe and reliable performance.The motors have such advantages as high efficiency low temperature rise and low vibration level.

The protection degree of the motors is of IP55 with F-class insulation and IC411 cooling methed voltage is 230/460v and the rated frequency is 1.15. The ambient temperature is limited to-15℃-40℃ and the height does not exceed 3300 feet above the sea level.They are applicable for the paces where are no special requirements for the motors.They can be used as team equipment for various machines .

The motors can also be specially designed and manufacturde upon the request of the users such as Ttype or H-class insulation,different voltage or different frequency。

Meanings of the Type

28 ---The valus is 4 times of the central height of the frame (in)

4 ---length code of the axial foot holes on the frame

T ---frame symbols for standard size

36--- The value is 4 times of the central height of the frame (in)

5--- Length code of the axial foot holes on the frame

TS ---Frame symbols for standard short shaft extension

Corresponding Relationship among Frame, Power and Speed

Terminal Box

The motor carries 9 or 12 lead-out cables, the length of which 6 inches from the extension part onward.

The symbols of the cable ends and the connection diagram conform to the regulations in MG1-2.62. In the terminal box are the grounding marks and screw, the connection is as follows:

Mounting Type

T-type---general mouting with motor feel;TC-type---C-type flat mounting with motor feet.

The mounting types should conform to the regulations of MG-4.03 and the mounting symbols conform to Table2

The mounting symbols F-1,W-2,W-3,W-6,W-8,C-2indicate that the terminal box,the feet and the shaft extension are on the same corresponding positon.

(See Table 1)

Table 1

Frame size

Synchronous Speed r/min

3600

1800

1200

Power

HP

KW

HP

KW

HP

KW

143T

1.5

1.1

1

0.75

145T

2

1.5

1.5

1.1

1

0.75

145T

2

1.5

182T

3

2.2

3

2.2

1.5

1.1

184T

5

3.7

5

3.7

2

1.5

213T

7.5

5.5

7.5

5.5

3

2.2

215T

10

7.5

10

7.5

5

3.7

254T

15

11

15

11

7.5

5.5

256T

20

15

20

15

10

7.5

284TS
T

25

18.5

25

18.5

15

11

286TS
T

30

22

30

22

20

15

324TS
T

40

30

40

30

25

18.5

326TS
T

50

37

50

37

30

22

364TS
T

60

45

60

45

40

30

365TS
T

75

55

75

55

50

37

404T

60

45

405TS
T

100

75

100

75

75

55

444TS
T

125

90

125

90

100

75

445TS
T

150

110

150

110

125

90

447TS
T

200

150

200

150

150

110

Terminal Box

The motor carries 9 or 12 lead-out cables, the length of which 6 inches from the extension part onward.

The symbols of the cable ends and the connection diagram conform to the regulations in MG1-2.62. In the terminal box are the grounding marks and screw, the connection is as follows:

Y-connection,double voltage 140T-180T,210 T-6 POLES

Volt

L1 L2 L3

Connection

230V

(T1,T7) (T2,T8)(T3,T9)

(T4,T5,T6)

460V

T1 T2 T3

(T4,T7)(T5,T8)(T6,T9)


Connection,double voltage 280T -440T

Volt

L1 L2 L3

Connection

230V

(T1,T6,T7,T12) (T2,T4,T8,T10)(T3,T5,T9,T11)

460V

(T1,T12)(T2,T10)(T3,T11)

(T4,T7)(T5,T8)(T6,T9)


Connection,double voltage 140T -180T,210T-6 Poles

Volt

L1 L2 L3

Connection

230V

(T1,T6,T7) (T2,T4,T8)(T3,T5,T9)

460V

T1 T2 T3

(T4,T7)(T5,T8)(T6,T9)

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