Electrical Engineering > GATE 2023 > DC Motors
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 armature resistance is 1.2 Ω. If the supply voltage drops by 10% with field current unaltered then the resultant speed of the motor in RPM is _______. (Round off to the nearest integer).

Correct : 1350

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motor speed control separately excited DC motor constant torque load GATE Electrical Engineering 2023 armature resistance voltage drop motor speed DC motor speed calculation GATE electrical motor speed RPM motor performance under load field current effect motor speed drop 10% motor RPM calculation

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