Inspite of heavy initial investments, dc motors are used due to
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Hoists, cranes and battery powered vehicles use _________ motors in the locomotive.
There is an application which required pulsating loads, punch presses. The most preferred machines would be
The manufacturer has mentioned a medium starting torque and 15% speed regulation. The most appropriate motor for his requirement is
Most commercial compound dc generator are normally supplied by manufacturers as over compound machines because
Which of the following are applied with differential compound motor?
Most commercial compound dc generator are normally supplied by manufacturers as ______ compounded machines.
Long back ago, magnetic casette were in use, having permanent magnet dc motors which had
. If a dc shunt motor is stopped by forcing starter handle back to OFF position, then
Interpoles are used to start the dc motor above the base speed.
A 200 V dc motor has external resistances of Ra and Rf in armature and field circuits respectively. The starting current is reduced when
A d.c. generator has been provided tappings on the armature winding at intervals of 120 degrees from the side of commutator. The connection will be
19 videos|90 docs|25 tests
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19 videos|90 docs|25 tests
|