Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Chapter 49, Problem 3RQ
A motor is tripping out on overload. The motor nameplate reveals a full-load current of 68 amperes. When the motor is operating under load, an ammeter indicates the following: Phase 1 = 106 amperes, Phase 2 = 104 amperes, and Phase 3 = 105 amperes. What is the most likely problem with this motor?
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Chapter 49 Solutions
Industrial Motor Control
Ch. 49 - Prob. 1RQCh. 49 - What is the advantage of a plunger-type voltage...Ch. 49 - A motor is tripping out on overload. The motor...Ch. 49 - A motor is tripping out on overload. The motor...Ch. 49 - Prob. 5RQCh. 49 - Refer to the circuit shown in Figure 4916. Assume...Ch. 49 - Prob. 7RQCh. 49 - Refer to the circuit shown in Figure 49–20. Assume...Ch. 49 - Prob. 9RQCh. 49 - Refer to the circuit shown in Figure 4920. Assume...
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