Residential Construction Academy: House Wiring (MindTap Course List)
Residential Construction Academy: House Wiring (MindTap Course List)
5th Edition
ISBN: 9781337402415
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Question
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Chapter 14, Problem 1RQ
To determine

The full-load current for a single-phase motor.

Expert Solution & Answer
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Answer to Problem 1RQ

12 A

Explanation of Solution

Given:

The power of motor is 2 hp.

The voltage is 230 V.

Table 430.248 of the National Electric Code (NEC) is used to determine the full-load current of a single-phase motor.

The table 430.248 of the National Electric Code (NEC) is shown below:

    Horsepower115 V200 V208 V230 V
    1/64.42.52.42.2
    1/45.83.33.22.9
    3/47.24.14.03.6
    1/29.85.65.44.9
    ¾13.87.97.66.9
    1169.28.88.0
    1 ½2011.511.010
    22413.813.212
    33419.618.717
    55632.230.828
    7 ½8046.044.040
    1010057.555.050

Here, the full-load current is in Ampere (A).

Thus, the full-load current for 2 hp and 230 V is 12 A.

Conclusion:

The full-load current for single-phase motor is 12 A.

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Chapter 14 Solutions

Residential Construction Academy: House Wiring (MindTap Course List)

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Residential Construction Academy: House Wiring (M...
Civil Engineering
ISBN:9781337402415
Author:Gregory W Fletcher
Publisher:Cengage Learning