A 220V, 1450 rpm, 100 A separately excited dc motor has an armature resistance of the machine is driven by a half controlled converter operating from a , 220 V, 50 Hz supply. The motor operates at rated speed and rated load current. Assume continuous conduction % THD in source current at AC mains is given by
70.5%
31%
None
68.2%
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go