Flywheel is used with DC compound motor to reduce the peak demand by the motor, compound motor has to be _____________(a) Level compounded(b) Under compounded(c) Cumulatively compounded(d) Differentially compoundedThis question was addressed to me in a national level competition.My question is based upon Operating Characteristics of DC Compound Motor topic in chapter Characteristics of DC Motors of DC Machines

Flywheel is used with DC compound motor to reduce the peak demand by t

1.	Flywheel is used with DC compound motor to reduce the peak demand by the motor, compound motor has to be _____________(a) Level compounded(b) Under compounded(c) Cumulatively compounded(d) Differentially compoundedThis question was addressed to me in a national level competition.My question is based upon Operating Characteristics of DC Compound Motor topic in chapter Characteristics of DC Motors of DC Machines
Answer» The correct choice is (c) Cumulatively compounded The best I can explain: In case of cumulative compound DC motor, WHENEVER a mechanical load is SUBJECT to fluctuations for short durations, a flywheel is generally provided for CARRYING peaks. Flywheel will smooth out the load on the motor and will also reduce peaks on power SYSTEM.

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