Q5) write true or false in the following sentences: 1. Load torques which always oppose the motion and change their sign on the reversal of motion are called passive load torques. 2. The control rectifier drive has low anmature current ripple compare to de to de chopper drives. 3. The main difference between dynamic breaking and regenerative braking of de motor is the disconnection the source from de motor in dyTiamic braking.

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Q5) write true or false in the following sentences:
1. Load torques which always oppose the motion and change their sign on the reversal of motion are
called passive load tonques.
2. The control rectifier drive has low amature current ripple compare to de to de chopper drives.
3. The main difference between dynamic breaking and regenerative braking of de motor is the
disconnection the source from de motor in dynamic braking.
4. Two quadrant operation of de motor can be obtained from thee phase semiconverter.
5. de-de four-quadrant drives can be supply high power than ac-de four-quadrant drives
6. Principle of regenerative brake control of de motor applied by using :step down choppers.
7. The main disadvantage of stator voltage control of induction motor is low speed rang.
8. For speed higher than rated speed of DC motor its required to apply armature control
9. A stepper mntor is brushless de motor whose otor mtates in continuous angular displacements.
10. In permanent magnet synchruneIs machines, the reluctance of direct axis is always greuter than the
quadrature axis reluctance.
Transcribed Image Text:Q5) write true or false in the following sentences: 1. Load torques which always oppose the motion and change their sign on the reversal of motion are called passive load tonques. 2. The control rectifier drive has low amature current ripple compare to de to de chopper drives. 3. The main difference between dynamic breaking and regenerative braking of de motor is the disconnection the source from de motor in dynamic braking. 4. Two quadrant operation of de motor can be obtained from thee phase semiconverter. 5. de-de four-quadrant drives can be supply high power than ac-de four-quadrant drives 6. Principle of regenerative brake control of de motor applied by using :step down choppers. 7. The main disadvantage of stator voltage control of induction motor is low speed rang. 8. For speed higher than rated speed of DC motor its required to apply armature control 9. A stepper mntor is brushless de motor whose otor mtates in continuous angular displacements. 10. In permanent magnet synchruneIs machines, the reluctance of direct axis is always greuter than the quadrature axis reluctance.
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