How many type of excitations does the universal commutator motors have?(a) 1(b) 2(c) 3(d) 4This question was posed to me by my college director while I was bunking the class.This key question is from Design of Small Universal Commutator Motors topic in portion Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines

How many type of excitations does the universal commutator motors have

1.	How many type of excitations does the universal commutator motors have?(a) 1(b) 2(c) 3(d) 4This question was posed to me by my college director while I was bunking the class.This key question is from Design of Small Universal Commutator Motors topic in portion Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines
Answer» Right option is (B) 2 To EXPLAIN I would say: There are two kinds of excitation PRESENT for the universal commutator motors. One winding is intended to run the motor to ac SUPPLY voltage. The other winding is connected in series with the first winding when the motor is operated from DC supply voltage.

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