Example-10.3 A separately-excited de motor is supplied from 230 V, 50 Hz source through a single-phase half-wave controlled converter. Its field is fed through 1-phase semiconverter with zero degree firing-angle delay. Motor resistance - 0.7 Q and motor constant = 0.5 V-sec/rad. For rated load torque of 15 Nm at 1000 rpm and for continuous ripple free currents, determine. (a) Firing angle delay of the armature converter

Q: Discuss the advantages of flux weakening operating regime in a DC motor.

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Q: A three-phase, 460 V, 100 hp, 60 Hz four-pole induction machine delivers rated output power at a…

A: Given: A 46 V, 100 hp induction motor has, Number of poles, P=4. Frequency, f=60 Hz. Slip, s=0.05.

Q: Needs Complete solution with 100 % accuracy.

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Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.