What is the fundamental frequency of the following variable speed drive signal?+Volts-Voltsfrequency 25 Hzfrequency3KHzO a. None of the choicesO b. 1500 HertzO c. 50 HertzO d. 3000 Hertz○ e.25 Hertz The following signal is the output signal of a variable speed drive signal that will be fed to an AC motor. What should be done to the bluesignal in order to make the motor slow down?+Volts-Voltsfrequency 25 Hzfrequency3KHza.○ b.None of the choicesThe signal should be dilated by decreasing the time between the blue signal pulses○ c. The signal should be squeezed by decreasing the time between the blue signal pulsesOd. The signal should be dilated by increasing the time between the blue signal pulses○ e. The signal should be squeezed by increasing the time between the blue signal pulses

Question 1:-Determining the Fundamental Frequency :-Given:Red line frequency: 25 HzBlue line…

Answered: What is the fundamental frequency of…

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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Similar questions

A de machine is controlled by the step-down de-de converter shown below. The armature inductance La =0.2 mH and the armature resistance can be neglected. The armature current is 5A. The Buck converter is operating at the switching frequency is 30 kHz and the duty ratio is 0.8. L₁ + Answer the following questions: 1) Calculate the input voltage (Va) if the output voltage (ea = 200 V). 2) Find the ripple in the armature current (a). 3) Calculate the maximum and minimum values of the armature current (la). 4) Sketch the armature current (ia (t)) and the supply current (id (t)).
3. A 25 Kw shunt generator is delivering full output to 4O0V bus bars and is driven at 950 rpm by belt drive. The belt breaks suddenly but the machine continues to run as a motor taking 25 Kw from the bus bars. At what speed does it run? Take armature resistance including brush contact resistance as 0.5 ohm and field resistance as 160 ohms.
3LDC Motor or AC Servomotor 'Explain why a BLDC motor experiences no slip at all during acceleration. Some of BLDC motors don't have encoder. What is kind of applications that suitable with this type of motor? Explain why the encoder sensor is not required. Calculate motor efficiency for the following motor. a. b. C. AC Servomotor 3-14 kW 24 A 1500 RPM CONT. 20 Nm 200 V ins. F
DA de machine is controlled by the step-down de-de converter shown below. The armature inductance La =0.2 mH and the armature resistance can be neglected. The armature current is 5A. The Buck converter is operating at the switching frequency is 30 kHz and the duty ratio is 0.8. + > ~ Answer the following questions: 1) Calculate the input voltage (Va) if the output voltage (ea = 200 V). 2) Find the ripple in the armature current (la). 3) Calculate the maximum and minimum values of the armature current (la). 4) Sketch the armature current (ia (t)) and the supply current (ig(t)).
Q8. Briefly describe what is meant by the following terms in the context of system testing: i) Resolution ii) Accuracy iii) Precision A step input of 3300 RPM is applied 5 times to a DC motor and the measured results are presented in the table below. Determine the percentage error and precision of the system. Test Number Actual Speed (RPM) 1 3200 2 3530 3 3580 4 3460 3520
In a closed-loop drive system reference variable is not compared with the output variable. Select one: O True O False
Create the MikroC Code for this schematic. It is for controlling and monitoring multiple DC Motors using PIC16F877A. The temperature sensor will utilize the Analog-to-Digital Converter module of a PIC microcontroller, particularly the PIC16F877A. The temperature reading is then displayed continuously on a Liquid Crystal Display (LCD). The temperature sensor and the LCD are connected to the master microcontroller; on the other hand, the other output components are connected to the slave. The two microcontrollers will communicate using the Universal Asynchronous Receiver-Transmitter (UART) module. For the output part of the system, the robot will do its firefighting task if the sensor reaches a reading of 68 degrees Celsisus. Furthermore, the robot also utilizes RGB LED and a buzzer as an output indicator of the system. For the wheels, the researchers represented it using DC motors connected to relays in order for them to be easily turned on and off. In the same way, the water pump of…
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 atmature 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.
A stepper motor is configured in to a half step. If it rotate 32 steps. what data pulse is the last fed on the wires if the pulse starts with 1000? Select one: a.1010 b.0110c.1000 d.1100 e.0101
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…
7. The following table relates to the open-circuit curve of a shunt gen- erator running at 750 rev/min: Generated voltage (V) Field current (A) 10 172 300 360 385 395 0 1 2 3 4 Determine the no-load terminal voltage if the field circuit resistance is 125 N. If the speed is now halved, what is the resultant terminal voltage? At the reduced speed, what value of field circuit resistance will give a no-load terminal voltage of 175 V? (N.C.T.E.C., O.2)
A de shunt motor operating unloaded at a terminal voltage of 125V at a speed of 1420 rpm. When the motor is operated unloaded at the same terminal voltage but with an additional resistance of 8n in series with the shunt field, the motor speed is 1560rpm. (Ignore armature reaction and magnetic saturation) a) Calculate the resistance of the shunt field. b) Calculate the motor speed if the series resistance is increased from 80 to200. c) With the field resistance at its original value and no series resistance, calculate the motor speed if it is operated loaded at a terminal voltage of 90 V and a teminal current of 100A.

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