In 4-point starters the resistance is added in series with NVC because __________________(a) To increase field current(b) To increase armature current(c) To limit the NVC current(d) To limit armature currentI have been asked this question by my college director while I was bunking the class.Question is from Starting of DC Motors in chapter DC Motors of DC Machines

In 4-point starters the resistance is added in series with NVC because

1.	In 4-point starters the resistance is added in series with NVC because __________________(a) To increase field current(b) To increase armature current(c) To limit the NVC current(d) To limit armature currentI have been asked this question by my college director while I was bunking the class.Question is from Starting of DC Motors in chapter DC Motors of DC Machines
Answer» The correct answer is (c) To limit the NVC CURRENT Explanation: To overcome the problem caused when the field current is low, NVC is connected across the two lines, ONE line connected to F terminal through the starter and other DIRECTLY to the second line from another L terminal of the starter. To limit the NVC current a protective resistance R is connected in series with it.

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