A. MCQ 15. An out-of-balance condition in an AC threephase system can be detected by means of: (a) voltage sensors connected across each output line
A. MCQ 15. An out-of-balance condition in an AC threephase system can be detected by means of: (a) voltage sensors connected across each output line
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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A. MCQ
15. An out-of-balance condition in an AC threephase system can be detected
by means of:
(a) voltage sensors connected across each output line
(b) a dedicated field coil monitoring circuit
(c) a current transformer connected in the neutral line.
14. When combined with a CSD, a brushless threephase AC generator is often
referred to as:
(a) a compound generator
(b) a frequency wild ' generator
(c) an IDG.
13. In a shunt-wound generator:
(a) none of the armature current flows through the field
(b) some of the armature current flows through the field
(c) all of the armature current flows through the field.
B. TAKE A REASAN AND CORRECTION THE FOLOWING PRAGRAPH.
1. Low voltage on any one generator.
2. Generator cuts out.
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