In case of conductively compensated D.C. series motors, the compensating winding is provided
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Electrical Engineering · all questionsD.C. Motors
D.C. Motors
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If a D.C. motor is to be selected for conveyors, which rioter would be preferred?
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Torque developed by a D.C. motor depends upon
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The starting resistance of a D.C. motor is generally
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D.C. motor is to drive a load which has certain minimum value for most of the time and some peak value for short duration. We will select the
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As the load is increased the speed of D.C. shunt motor will
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The total losses in a well designed D.C. generator of 10 kW will be nearly
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Sparking, is discouraged in a D.C. motor because
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Why are the D.C. motors preferred for traction applications?
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D.C. generators are installed near the load centers to reduce
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The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load of the generator?
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Which of the following load normally needs starting torque more than the rated torque?
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Which of the following motors is most suitable for signaling devices and many kinds of timers?
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D.C. shunt motors are used for driving
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The condition for maximum power in case of D.C. motor is
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Which of the following law/rule can he used to determine the direction of rotation of D.C. motor?
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The speed of a D.C. motor can be varied by varying
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Following motor is used where high starting torque and wide speed range control is required.
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The current drawn by the armature of D.C. motor is directly proportional to
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The speed of a D.C. shunt motor more than its full-load speed can be obtained by
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