Which of the following is an example of a manual speed controller for a wound-rotor motor? a. Variable frequency drive b. Timers/Control Relays c. SCR Controller d. Faceplate Controller

Q: motor has an armature resistance of 1.55 ohms. If the armature takes 14.8 amp at full load,…

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Q: 3. HOW THE BACK EMF OR COUNTER EMF IS PRODUCED? 4. DIFFERENTIATE THE TYPES OF DC MOTOR THROUGH: a.…

A: Since there are multiple questions asked in the same question, hereby solving the first question…

Q: 3. What feature is found in servomotors but not in stepper motors? a. automatic c. forward b.…

A: Stepper motor has no feedback system So it can be more prone to error Due to lack of feedback it…

Q: nswer the following questions about a 460-V, ~-COlUlected. two-pole. 75-hp. 60-Hz.…

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Q: A 205 V shunt motor is rated at 5 HP and 1000 rpm. At rated output it draws 29 A of line current.…

A: Given:RSH=101ΩRa=0.5Ω total current, I=29A   Total current is equal to summation of armature current…

Q: Q9. DC motors are often used as the main actuator within control and mechatronics systems. a)…

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Q: What type of speed control method provides above the normal speed of the DC series motor? O a.…

A: Find method for above speed

Q: 7- The increase of the DC voltage feeding the switched reluctance motor will increase: a- Its…

A: 7. The speed of switched reluctance motor is increases with applied voltage hence, Option  A: The…

Q: 3. What feature is found in servomotors but not in stepper motors? a. automatic c. forward b.…

A: Steeper motor operates in an open loop but Servo motor operates in a closed loop.

Q: For the armature controlled DC motor shown, find the transfer function. Assume the following…

A: Solution

Q: . a)Briefly explain ‘armature reaction’ and its effect with the help of a suitable diagram.…

A: Armature reaction is the effect that armature field is made in main field. Or we can say that it is…

Q: for the shunt excited motor running at 1250 rpm, the shunt field current is 0.6A and the armature…

A: total current input to motor=Field current+Armature current=3.4+0.6=4 A Voltage input to rotor= 220…

Q: Explain wave stepping and full stepping in stepper motor control. What is the main difference…

A: The fundamental technique for operating a stepper motor involves correctly energizing and…

Q: 17.A. The arrangement which can NOT be used to control the speed of a universal motor operating from…

A: Here we discuss about the universal motor & a 1phase ac motor.

Q: Q 2) A d.c. shunt motor has the armature and field resistance is 0.012 and 50 Q, when the input…

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Q: A shunt motor is connected to line with 110V and rotating with 2000 r/min. Line current is 40A.…

A: This question belongs to electrical machine . It is based on the d.c. shunt motor . Motor converts…

Q: 22.a. The maximum torque produced by a split-phase motor is also called the A. full-load torque. B.…

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Q: Question 1: A DC Shunt excited motor is connected to a variable DC supply. The motor is used to…

A: Shunt Excited Dc-motor is used to drive the Constant load Torque of 40 Nm. Armature Resistance= 2…

Q: Please answer all subparts please answer in typing format

A: Step 1: Step 2: Step 3: Step 4:

Q: Explain the use of scr control used to control the speed of a DC motor?

A: Types of DC Machine Self-Excited DC Machine Shunt DC Machine Series DC Machine Compound DC Machine…

Q: HOME WORK: Draw the block diagram of dc motor

A: Take a DC motor which has a armature circuit shown with Rotor free body diagram V-input voltage…

Q: Describe the construction and operation of a DC Motor. How is speed controlled and can the motor be…

A: Asked to explain the construction of DC motor?Operation of DC motor?Speed control and motor reversal…

Q: determine "A" through "G" for the DC motor on worksheet 5 when it is running at capacity and its…

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Q: Explain with mathematical reasons why direct current motors cannot be operated from a constant…

A: The voltage of the dc motor is as follows:   V=I.R+Ldidt+E   =I.R+EE=ke.ωso, V=I.R+ke.ωke=Electrical…

Q: 55 hp, 440 V, 400 rpm DC shunt motor draws 107 A when operating at rated conditions. The motor has…

A: In this question we will draw diagram of dc shunt motor showing all  resistance,currents and…

Q: 2pole ,225v ,DC shunt motor develops an output power of 22KW , if Ra=.05 ohms and Rsh =85 ohms ,the…

A: 2pole ,225v ,DC shunt motor develops an output power of 22KW , if Ra=.05 ohms and Rsh =85 ohms ,the…

Q: A switched reluctance motor has salient poles on ..................... a. neither stator or rotor b.…

A: Option B: A switched reluctance motor has salient poles on both the stator and the rotor A Switched…

Q: B.2. Discuss the advantages of following ac motor starting methods (consider Starting torque, the…

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Q: 1. Explain briefly in one(1) sentence how do we maximize the value of the armature current in a…

A: (1) When the load gets added to shunt wound DC motor the speed gets reduced and along with the speed…

Q: a)Explain the speed control methods of direct current motor. b)Compare linear current series motor,…

A: For a) Speed control of a DC motor is either done manually by the operator or by employing an…

Q: What are the applications of vibration motor and Vacuum Pump in Mechatronics systems?

A: It is asked to tell the applications of vibration motor and Vacuum pump in Mechactronic systems.

Q: Q1) Synchronous motors are not self-starting machines. a) Briefly explain why this machine is not…

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Q: Explain the operation of a reluctance motor. Explain why reluctance motor ir termed as a variahle…

A: The reluctance is the opposition to the magnetic flux as resistance is the opposition to electric…

Q: Describes the Armature Resistance Control method in shunt DC motor and sketch the related circuits…

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Q: 4. A d.c. series motor is controlled by a DC-DC drive. Drive parameters are as follows: (Ra + Rf) =…

A: Given that a dc series motor is supplied by 110V dc source through a dc-dc drive. a) Given armature…

Q: Q3: What are the main differences between the following solid rotor, high speed synch operation…

A: Permanent magnet motor: The operation of DC machine is based on a magnetic field. The magnetic…

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.