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= A4. (a) A buck chopper shown in Fig. A4 is fed by a 600 V D.C., and the motor has the following circuit parameters. •
Posted: Mon May 09, 2022 8:00 am
by answerhappygod
- A4 A A Buck Chopper Shown In Fig A4 Is Fed By A 600 V D C And The Motor Has The Following Circuit Parameters 1 (31.23 KiB) Viewed 33 times
= A4. (a) A buck chopper shown in Fig. A4 is fed by a 600 V D.C., and the motor has the following circuit parameters. • Armature current I. - 100 A • Amature resistance Rs = 0.050 • Duty cycle = 0.6 • back e m.f constant kao of the motor=0.398 V /rpm Vs M Fig A4 1) Evaluate the output voltage of the chopper. (i) Evaluate the motor speed in rev/min. (1 mark) (3 marks) 6) Briefly describe the operating condition of armature voltage control on each of the following issues in DC drives. (1) Level of field curent, (1 mark) (11) Range of motor speed, (1 mark) (11) Motor torque, and (1 mark) (iv) Motor power (1 mark)