|
l'/2 |
20 |
11.5 |
11.0 |
10 |
|
2 |
24 |
13.8 |
13.2 |
12 |
|
3 |
34 |
19.6 |
18.7 |
17 |
|
5 |
56 |
32.2 |
30.8 |
28 |
|
7'/2 |
80 |
46.0 |
44.0 |
40 |
|
10 |
100 |
57.5 |
55.0 |
50 |
Table 430.249 Full-Load Current, Two-Phase
Alternating-Current Motors (4-Wire)
The following values of full-load current are for motors running at speeds usual for belted motors and motors with normal torque characteristics. Current in the common conductor of a 2-phase, 3-wire
Table 430.249 Continued
Induction-Type Squirrel Cage and Wound Rotor (Amperes)
230 Volts
2300
Volts
system will be 1.41 times the value given. The voltages listed are rated motor voltages. The currents listed shall be permitted for system voltage ranges of 110 to 120, 220 to 240, 440 to 480, and 550 to 600 volts.
115
Volts
Horsepower
460
Volts
575
Volts
Induction-Type Squirrel Cage and
Wound Rotor (Amperes)
115
Volts
230 Volts
Horsepower
460
Volts
575
Volts
2300
Volts
'/2
3A 1
P/2
2
3
5
7'/2
Table 430.250 Full-Load Current, Three-Phase Alternating-Current Motors
The following values of full-load currents are typical for motors running at speeds usual for belted motors and motors with normal torque characteristics.
The voltages listed are rated motor voltages. The currents listed shall be permitted for system voltage ranges of
110 to 120, 220 to 240, 440 to 480, and 550 to 600 volts.
Synchronous-Type Unity Power
Induction-Type Squirrel Cage and Wound Rotor (Amperes) Factor* (Amperes)
|
Horsepower |
115 Volts |
200 Volts |
208 Volts |
230 Volts |
460 Volts |
575 Volts |
2300 Volts |
230 Volts |
460 Volts |
575 Volts |
2300 Volts |
|
»/2 4.4 |
2.5 |
2.4 |
2.2 |
1.1 |
0.9 |
_ |
_ |
||||
|
y* 6.4 |
3.7 |
3.5 |
3.2 |
1.6 |
1.3 |
— |
— |
— |
— |
— |
|
|
I 8.4 |
4.8 |
4.6 |
4.2 |
2.1 |
1.7 |
— |
— |
— |
— |
— |
|
|
l'/2 12.0 |
6.9 |
6.6 |
6.0 |
3.0 |
2.4 |
— |
— |
— |
— |
— |
|
|
2 13.6 |
7.8 |
7.5 |
6.8 |
3.4 |
2.7 |
— |
— |
— |
— |
— |
|
|
3 — |
11.0 |
10.6 |
9.6 |
4.8 |
3.9 |
— |
— |
— |
— |
— |
|
|
5 — |
17.5 |
16.7 |
15.2 |
7.6 |
6.1 |
— |
— |
— |
— |
— |
7'/2 — 25.3 24.2 22 11 9 — — — — —
10 32.2 30.8 28 14 11 _ _ _
15 — 48.3 46.2 42 21 17 —
20 — 62.1 59.4 54 27 22 — —
25 — 78.2 74.8 68 34 27 — 53 26 21
30 — 92 88 80 40 32 — 63 32 26 —
40 — 120 114 104 52 41 — 83 41 33 —
50 150 143 130 65 52
104 52 42
60 — 177 169 154 77 62 16 123 61 49 12
75 — 221 211 192 96 77 20 155 78 62 15
100 — 285 273 248 124 99 26 202 101 81 20
125 — 359 343 312 156 125 31 253 126 101 25
150 — 414 396 360 180 144 37 302 151 121 30
200 552 528 480 240 192 49 400 201 161 40
250
302 242 60 _
300 — — — — 361 289 72
350 — — — — 414 336 83