Why differential compound generator is not used in practice?(a) High cost(b) High maintenance(c) High drop down in voltage(d) Difficult constructionI have been asked this question during a job interview.This question is from Characteristics of Separately Excited Generators in portion DC Generator of DC Machines

Why differential compound generator is not used in practice?(a) High c

1.	Why differential compound generator is not used in practice?(a) High cost(b) High maintenance(c) High drop down in voltage(d) Difficult constructionI have been asked this question during a job interview.This question is from Characteristics of Separately Excited Generators in portion DC Generator of DC Machines
Answer» Correct CHOICE is (c) High drop down in voltage The best EXPLANATION: At a given value of load current, differential compound machine GIVES lowest voltage output. As the load current increases drop down in terminal voltage of DC differential compound GENERATOR is maximum.

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