Describe the efficiency of an electric motor decreases at part load.
Q: Indicate the parts of DC motor illustrated below.
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Q: Explain the effects of power factor on motor effects
A: Given: Effect of power factor on motors
Q: 3.An induction motor has a rotor resistance and reactance at standstill of 0.1 ohm and 3.5 ohm…
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Q: 2. DC Motor has 100 mWeb/pole of flux, 120 no. of conductors, 4 field poles, and it has wave winding…
A: Given a DC motor has, Flux per pole, φ=100 mWbpole Total number of conductors, Z=120 Total number of…
Q: a) What is the operating principle of induction motor? b) Differentiate between induction motor and…
A: Induction motor works on the principle of Faraday's law of Electromagnetic Induction. Operating…
Q: discuss how the dc motor is used in washing machine
A: The answer as given below:
Q: In the speed current characteristics of DC series motor, the speed is increasing when the current…
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Q: types of power losses of DC motor
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Q: Calculate the torque in newton-meter developed by a 440-V dc motor having an armature resistance of…
A: Considering the given motor as series motor and it can be shown as from the given information as…
Q: a) Explain about the stator, rotor and carbon brush used in of AC motor.
A: For the above given question we need to define rotor, stator and carbon brushes used in AC motor.
Q: 3. How does the armature reaction vary with the power factor of loads in an alternator?
A: Unity power factor: In case of unity power factor tha generated EMF lag the field flux by 90 degree.…
Q: Q4: a) In the experiment of performance study of three-phase wound rotor induction motor, what are…
A: Approximate Equivalent circuit diagram of wound rotor induction motor is given by Where V is the…
Q: 16 In the speed current characteristics of DC series motor, the speed is decreasing when the…
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Q: If the losses of the armature wingdings of dc motor which is running at 1200 RPM is neglected and…
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Q: A de electrical shunt motor rated 50 kW connected to a 250 V supply is loaded as to draw 200 A when…
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Q: A 220V series generator has an armature resistance of 0.4ohms. If the generated emf is 230V and the…
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Q: Find the line current, shaft speed, load torque, induced torque and rotor frequency of an induction…
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Q: discuss how the dc motor is used in refrigerator
A: Electrical machines can be either generator, transformer or motors. They can be either Ac machines…
Q: A 230v DC series motor takes 30A when giving its rated output at 1400 rpm. It has a field resistance…
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Q: Appliances in home that use DC motor and briefly explain why it works as reverse DC generator
A: => Dc motor are commonly used in the household appliances Like -: vacuum cleaner, food mixer…
Q: Draw the equivalent circuit of Induction motor and explain its different parameters.
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Q: At no load, a 250V shunt motor runs at 1000 rpm and draws 8A. Armature and field resistances are…
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Q: what is the conclusion for the concepts of rotating amature and rotating field in an alternator?
A: There are two types of alternators are used one is rotating armature type and the other one is…
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Q: 200 +21. If maximum torque of an induction motor is kg-m at a slip of 12%, the torque at 6% slip…
A: Given: The torque is 200 kg-m The maximum torque slip is sm=12% The objective is to determine torque…
Q: A 400 V DC series motor develops shaft torque of 200 Nm at 80 percent efficiency while running at…
A: Given, A DC series motor has, Voltage, V = 400 V Shaft torque, T = 200 Nm Efficiency, η=80 %=0.8…
Q: Qi (a) With aid of suitable diagram, explain the losses and power-flow of an induction motor.
A: To know how the power flow in the case of an induction machine we need to draw power flow diagram.…
Q: Indicate the relevant changes in induction motor performance (output power, speed, efficiency, power…
A: Since you have asked more than one question, I will answer the first question and all its subparts.…
Q: 1. A 200V de shunt generator can deliver 10 kW at half load with efficiency of 83 %. If the armature…
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Q: (a) Describe a single wire DC motor with the help of a diagram.
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Q: What are the types of 1-phase and 3-phase motors, explain with diagram and in detail
A: The difference between the single-phase motor and the three-phase motor is explained below:…
Q: 3- A series-resistance of series motor is 1 ohm. In driving a certain load at 1200 rpm, the current…
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Q: The DC shunt generator with the terminal voltage 350 V, armature drop 6 V and the total brush drop 4…
A: A dc shunt generator V=350V Armature drop=6v Brush drop= 4v
Q: A 4-pole dc motor has a wave wound armature with 800 conductors. The useful flux per pole is 20mWb.…
A: In this question, A 4-pole dc motor wave wound armature so Number of parallel path A= 2 Z=800…
Q: Compare the Universal Motor operating characteristics on AC and DC and list the major differences.
A: According to the question we need to Compare the Universal Motor operating characteristics on AC and…
Q: 1- What will happen if there is no counter emf in DC motor?
A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…
Q: A 4-pole series motor has 800 lap connected armature conductors. At a certain load, the flux per…
A: Given DC series motor with Number of poles P=4Armature conductors Z=800Flux per pole ϕ=60 mWbTotal…
Q: A 4-pole series motor has 800 lap connected armature conductors. At a certain load, the flux per…
A: Motor: It is an electromechanical device, that can convert the electrical power into mechanical…
Q: ) Describe a single wire DC motor with the help of a diagram.
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Q: Which of the following can be said about the power factor of an induction motor? a) power factor is…
A: The power factor of induction motors varies with load, typically from around 0.85 or 0.90 at full…
Q: The DC shunt generator with the terminal voltage 350 V, armature drop 7 V and the total brush drop 4…
A: Given that Terminal voltageVt = 350v Armature voltage drop Va= 7v Brush dro VB = 4v
Q: re the expression of average torque of an electrostatic motor supplied
A: When the current-carrying current is placed in a magnetic field, force is exerted in it which exerts…
Q: Please Explain the Following 1 How a DC motor works? 2.Compare and contrast DC generator and DC…
A: 1) DC motor works on the principle of Fleming's left hand rule states that, when current carrying…
Q: Write down the specification of motor and stator for (a) DC motor (b) AC motor
A: DC Motor:- A group of rotating electric motors that use direct current (DC) electricity to create…
Q: The core of a simple de motor is shown i
A: NOTE- “Since you have asked multiple questions, we will solve the first question for you. If you…
Q: A 75.0 kW, 230-V shunt generator has a generated emf of 243.5 V. If the field current is 12.5 A at…
A: Given Output power Pout=75 kW Terminal voltage V=230 V Generated emf E=243.5 V Field current…
Q: What are the different ways to supply DC power to rotor of an alternator? Which method is superior…
A: The different ways to supply DC current to the rotor of the alternator are as follows: 1-DC-DC…
Describe the efficiency of an electric motor decreases at part load.
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- AB Power Engineering Determine and explain the advantages and disadvantages of using an electric motor as compared to other sources of farm power.Question:A universal motor is controlled by using AC chopper. Suggest a method to reduce the harmonics of the source current.electrical and mechanical properties of an induction motor at no load, nominal load, and breakdown
- Appliances in home that use DC motor and briefly explain why it works as reverse DC generatorwhat is the conclusion for the concepts of rotating amature and rotating field in an alternator?Q#1:a) What is the operating principle of induction motor?b) Differentiate between induction motor and synchronous motor; give at least one practical example.
- Calculate the torque in newton-meter developed by a 440-V dc motor having anarmature resistance of 0.25 ohm and running at 750 rpm when taking a current of 60 A.- Why use an AC motor? - Different types of AC Generator. - Define the working principle of AC Motor[1.1]Discuss how stator and rotor losses are reduced in an energy efficient motor as compared to normal motors.
- At no load, a 250V shunt motor runs at 1000 rpm and draws 8A. Armature and field resistances are 0.20 ohm and 250 ohms, respectively. If the motor draws a current of 50A, its speed will beELECTRICAL MACHINES 2 Describe the difference in construction operation of dc shunt, series, and compound motor. Compare the speed characteristics of dc shunt, series, and compound motor.Answer completely and elaborate what is asked. Avoid plagiarism 1.) Compare AC Motor and DC Motor.2.) Define the parts and functions of AC Motor.