125%TABLE 18.24 APPROXIMATE FULL LOAD RATING FOR SELECTEDMOTORS, IN AMPERES, BASED ON HORSEPOWER,PHASE, AND LINE VOLTAGE.Single PhaseThree PhaseHorsepower120 V208 V230 V208 V240 V460 V1/27.03.83.52.12.01.0/28.44.64.22.62.41.29.65.34.83.02.81.411.86.55.93.73.41.71.515.69.18.35.04.82.420.811.410.46.26.03.018.315.69.89.64.825.023.014.514.27.11029.028.014.015142.040.050.060.020.02052.025.02530.03072.036.040104.052.050120.060.0it60146.0184.073.07592.0e100230.0115.0125290.0145.0ot150330.0165.0d.123 474040 4 o O o 2 4. From tables provided in this chapter, approximate the full load rating forthe following motors, in amperes:a. 3 hp, 230 V, single-phase electric motorb. 10 hp, 240 V, Three-phase electric motorc. 25 hp, 460 V, Three-phase motor

4. From tables provided in this chapter, approximate the full load rating for the following motors, in amperes: a. 3 hp, 230 V, single-phase electric motor b. 10 hp, 240 V, Three-phase electric motor c. 25 hp, 460 V, Three-phase motor

4. From tables provided in this chapter, approximate the full load rating for the following motors, in amperes: a. 3 hp, 230 V, single-phase electric motor b. 10 hp, 240 V, Three-phase electric motor c. 25 hp, 460 V, Three-phase motor

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 3PA: You are an electrician working in an industrial plant. A 30-hp three-phase squirrel- cage motor...

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Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

125%
TABLE 18.24 APPROXIMATE FULL LOAD RATING FOR SELECTED
MOTORS, IN AMPERES, BASED ON HORSEPOWER,
PHASE, AND LINE VOLTAGE.
Single Phase
Three Phase
Horsepower
120 V
208 V
230 V
208 V
240 V
460 V
1/2
7.0
3.8
3.5
2.1
2.0
1.0
/2
8.4
4.6
4.2
2.6
2.4
1.2
9.6
5.3
4.8
3.0
2.8
1.4
11.8
6.5
5.9
3.7
3.4
1.7
1.5
15.6
9.1
8.3
5.0
4.8
2.4
20.8
11.4
10.4
6.2
6.0
3.0
18.3
15.6
9.8
9.6
4.8
25.0
23.0
14.5
14.2
7.1
10
29.0
28.0
14.0
15
142.0
40.0
50.0
60.0
20.0
20
52.0
25.0
25
30.0
30
72.0
36.0
40
104.0
52.0
50
120.0
60.0
it
60
146.0
184.0
73.0
75
92.0
e
100
230.0
115.0
125
290.0
145.0
ot
150
330.0
165.0
d.
123 474
040 4 o O o 2

4. From tables provided in this chapter, approximate the full load rating for
the following motors, in amperes:
a. 3 hp, 230 V, single-phase electric motor
b. 10 hp, 240 V, Three-phase electric motor
c. 25 hp, 460 V, Three-phase motor

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