Electrical Engineering > GATE 2014 SET-3 > DC Motors
The no-load speed of a 230 V separately excited dc motor is 1400 rpm. The armature resistance drop and the brush drop are neglected. The field current is kept constant at rated value. The torque of the motor in Nm for an armature current of 8 A is ________.
Correct : 12.45 to 12.65
Similar Questions
A 5 kW, 220 V DC shunt motor has 0.5 Ω armature resistance including brushes. The motor draws a no-load current of 3 A. The field current is constant at 1 A. As...
A separately excited DC motor rated 400 V, 15 A, 1500 RPM drives a constant torque load at rated speed operating from 400 V DC supply drawing rated current. The...
A separately excited dc motor has an armature resistance Ra=0.05 Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor...
Total Unique Visitors
Loading......