The following figure shows the circuit of a DC drive system. Choose the right expression concerning this system.L1L2L3123ArmatureShuntfieldMotor field regulatorO a. None of the choicesO b. This drive allows controlling the motor speed above its rated speed by decreasing the armature voltage; and below its rated speedby decreasing the field voltageO c. This drive allows controlling the motor speed below its rated speed by decreasing the armature voltage; and above its rated speedby decreasing the field voltageO d. This drive allows controlling the motor speed below its rated speed by decreasing the armature voltage; and above its rated speedby decreasing the field voltagee. This drive allows controlling the motor speed below its rated speed by increasing the armature voltage; and above its rated speed byincreasing the field voltage The following figure shows the circuit of a DC drive system. Choose the right expression concerning this system.Forward bridgeReverse bridgeL1L1L2L323ArmatureShuntfieldL323L2O a. This drive is a Regenerative DC drive. It allows controlling the motor speed ONLY below its base speed. Changing the rotationdirection requires to feed the motor from the reverse bridge. The reverse bridge is also used while braking to transform the excessenergy into AC and feed it to grid linesO b. This drive is a Non-regenerative DC drive. It allows controlling the motor speed below and above its base speed. Changing therotation direction requires external contactors to be connected. The reverse bridge is used while braking to direct the excess energyto braking resistor bankOc. None of the choicesOd. This drive is a Regenerative DC drive. It allows controlling the motor speed below and above its base speed. Changing the rotationdirection requires to change the pulses fed into the forward bridge. The reverse bridge is used while braking to transform the excessenergy into AC and feed it to grid linesOe. This drive is a Non-regenerative DC drive. Changing the rotation direction requires to feed the motor from the reverse bridge. Thereverse bridge is used while braking to direct the excess energy to braking resistor bank

Two DC drive circuits are given. We need to explain the behavior of DC drive control.

The following figure shows the circuit of a DC drive system. Choose the right expression concerning this system. L1 L2 L3 123 Armature Shunt field O a. None of the choices Motor field regulator O b. This drive allows controlling the motor speed above its rated speed by decreasing the armature voltage; and below its rated speed by decreasing the field voltage Oc. This drive allows controlling the motor speed below its rated speed by decreasing the armature voltage; and above its rated speed by decreasing the field voltage O d. This drive allows controlling the motor speed below its rated speed by decreasing the armature voltage; and above its rated speed by decreasing the field voltage Oe. This drive allows controlling the motor speed below its rated speed by increasing the armature voltage; and above its rated speed by increasing the field voltage

The following figure shows the circuit of a DC drive system. Choose the right expression concerning this system. L1 L2 L3 123 Armature Shunt field O a. None of the choices Motor field regulator O b. This drive allows controlling the motor speed above its rated speed by decreasing the armature voltage; and below its rated speed by decreasing the field voltage Oc. This drive allows controlling the motor speed below its rated speed by decreasing the armature voltage; and above its rated speed by decreasing the field voltage O d. This drive allows controlling the motor speed below its rated speed by decreasing the armature voltage; and above its rated speed by decreasing the field voltage Oe. This drive allows controlling the motor speed below its rated speed by increasing the armature voltage; and above its rated speed by increasing the field voltage

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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a)Explain the speed control methods of direct current motor. b)Compare linear current series motor, shunt motor and component motors in terms of torque and speed.
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