Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Question
DEGREE: ELECTRICAL ENGINEERING
SUBJECT/COURSE: AC CIRCUITS
NOTE: Please solve in this way.
1. Please have a good handwriting, some of the answers are not readable. Thank you!
2. GIVEN.(include symbols and units)
3. REQUIRED/FIND/MISSING (with symbol/s)
4. ILLUSTRATION (Required).
5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible
6. FINAL ANSWERS must be rounded up to three decimal places
PROBLEM:
• A 440V, 3-phase ac motor has a power output of 11.25kW and operates at a power factor of 0.8 lagging and with an efficiency of 84%. If the motor is delta connected determine:
(a) the power input,
(b) the line current and
(c) the phase current
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