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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)
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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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 Motor field regulator O a. None of the choices 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 O c. 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 e. 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
Transcribed Image Text: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 Motor field regulator O a. None of the choices 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 O c. 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 e. 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. Forward bridge Reverse bridge L1 L1 L2 L3 23 Armature Shunt field L3 23 L2 O a. This drive is a Regenerative DC drive. It allows controlling the motor speed ONLY below its base speed. Changing the rotation direction requires to feed the motor from the reverse bridge. The reverse bridge is also used while braking to transform the excess energy into AC and feed it to grid lines O b. This drive is a Non-regenerative DC drive. It allows controlling the motor speed below and above its base speed. Changing the rotation direction requires external contactors to be connected. The reverse bridge is used while braking to direct the excess energy to braking resistor bank Oc. None of the choices Od. This drive is a Regenerative DC drive. It allows controlling the motor speed below and above its base speed. Changing the rotation direction requires to change the pulses fed into the forward bridge. The reverse bridge is used while braking to transform the excess energy into AC and feed it to grid lines Oe. This drive is a Non-regenerative DC drive. Changing the rotation direction requires to feed the motor from the reverse bridge. The reverse bridge is used while braking to direct the excess energy to braking resistor bank
Transcribed Image Text:The following figure shows the circuit of a DC drive system. Choose the right expression concerning this system. Forward bridge Reverse bridge L1 L1 L2 L3 23 Armature Shunt field L3 23 L2 O a. This drive is a Regenerative DC drive. It allows controlling the motor speed ONLY below its base speed. Changing the rotation direction requires to feed the motor from the reverse bridge. The reverse bridge is also used while braking to transform the excess energy into AC and feed it to grid lines O b. This drive is a Non-regenerative DC drive. It allows controlling the motor speed below and above its base speed. Changing the rotation direction requires external contactors to be connected. The reverse bridge is used while braking to direct the excess energy to braking resistor bank Oc. None of the choices Od. This drive is a Regenerative DC drive. It allows controlling the motor speed below and above its base speed. Changing the rotation direction requires to change the pulses fed into the forward bridge. The reverse bridge is used while braking to transform the excess energy into AC and feed it to grid lines Oe. This drive is a Non-regenerative DC drive. Changing the rotation direction requires to feed the motor from the reverse bridge. The reverse bridge is used while braking to direct the excess energy to braking resistor bank
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