How many machines are considered for the design of field regulators for dc machines?
(a) 2
(b) 3
(c) 4
(d) 5
This question was posed to me by my college professor while I was bunking the class.
This key question is from Motor Starters, Calculation of Resistance Steps & Design of Field Regulators topic in chapter Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines