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How many machines are considered in the calculation of the resistance steps?(a) 2(b) 3(c) 4(d) 5The question was posed to me during a job interview.My question is from Motor Starters, Calculation of Resistance Steps & Design of Field Regulators in chapter Design of Small Electrical Machines, Starters and Field Regulators of Design of Electrical Machines

Answer» RIGHT ANSWER is (b) 3

Explanation: There are 3 machines considered in the calculation of the resistance steps. They are starters for dc SHUNT motors, starters for dc series motors, starters for three PHASE slip RING induction motor.


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