00 V DC serial motor has a starting current value of 50 A. Total armature resistance (Ra) value is 4 times of serial field circuit total resistance (Rs) for this motor. And rated load (full load) line current lue is IL 5 A. Motor is rotating with 600 rpm value under rated load conditions. Find the starting resistance (Rst) for this motor to be connected between the electrical source and the motor, to nit the starting current to 10 A. Find the internal generated voltage (Ea) value under rated load (full load) conditions. If the load of this motor is changed till having a line current value of 2 A, d the new speed value of this motor in rpm (n2). Write the answers inside boxes below) Rst= Ea n2=
(100 V DC serial motor has a starting cent value of 50 A. Total armature resistance (Ra) value is 4 times of serial field circuit total resistance (Rs) for this motor. And rated load (full load) line curent value is IL=5 A. Motor is rotating with 600 rpm value under rated load conditions. Find the starting resistance (Rst) for this motor to be connected between the electrical source and the motor, to limit the starting current to 10 A. Find the internal generated voltage (Ea) value under rated load (full load) conditions. If the load of this motor is changed till having a line wrent value of 2 A, find the new speed value of this motor in rpm (n2). Write the answers inside boxes below.) Rst =? Ea=? n2=?
solve the question by using the rules of Electromechanical Energy Conversion 2
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