Describe the operation of a variable speed drive used in industry. State advantages of variable speed drive bring to the industrial environment.
Q: DC motors are often used as the main actuator within control and mechatronics systems. a) Explain…
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Q: Indicate whether the following statement are true or false * True False Dc shunt motor is best…
A: In this question , we will see why shunt motors provide low starting torque.. Note:- I will answer…
Q: A 30 hp, 240 V, 1150 rpm DC shunt motor, operating at rated conditions, has an efficiency of 88.5…
A: According to the question we have to find (a) percentage of the total losses are due to rotational…
Q: Q/ 220Volt dc shunt motor has an armature resistance of 0.05ohms and field resistance of 220ohms. At…
A: 220Volt dc shunt motor armature resistance Ra 0.05ohms field resistance Rsh 220ohms. At full load…
Q: Q.4 (a) Sketch the equivalent circuit for a shunt connected DC motor. TM equation of shunt connected…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: A six-pole 60-Hz synchronous motor is operating with a developed power of 5 hp and a torque angle of…
A: Given that; Therefore the power developed is; Convert hp into watt we get; Now the developed…
Q: a) As an engineer in the era of Industry 4.0, discuss how it can benefit the drive system in any…
A: (a) Benefit of drive system: Drive system has very vast application. It is used for large number of…
Q: Explain with necessary Torque-Speed 'characteristics the operation of repulsion-start induction-run…
A: The repulsion motor depends on the principle of repulsion between two magnetic fields. Consider a…
Q: Explain different methods of speed control of induction motor drive.
A: Different speed control methods of induction motor are as follows- 1. Change the applying frequency…
Q: The speed control of an AC motor can be achieved by using 2 common types of drive circuit, namely…
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Q: A 230V DC shunt motor takes at rated voltage and run at 1000rpm It's field resistance is 100ohm and…
A: The rated voltage is not mentioned, so assuming rated voltage = 22 A
Q: The field winding resistance of DC shunt motor compared to its armature resistance is O Very high O…
A: DC Motor: DC Motor is an electromechanical device which converts electrical energy to mechanical…
Q: List and briefly explain the three (3) control strategies used in AC variable speed motors
A: There are various through which we can control speed of AC can be achieved. The speed adjustment…
Q: Discuss what the different between 'Regenerative' and 'Plugging' of braking mode control in…
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Q: Electrical Engineering. Explain briefly in one sentence how do we maximize the value of the…
A: Consider the formula for the armature current in terms of terminal voltage and armature voltage is,…
Q: Q4: Explain the meaning of the Torque-Speed characteristics of the stepper motor from the driver…
A: The torque-speed characteristics of the stepper is,
Q: iii) Estimate the stepping angle of the Variable Reluctance Stepper Motor with, 20 number of teeth…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: The resistance of the armature of a 250V shunt motor is 0.3ohm and its full load speed is 1000rpm.…
A: GIven Data, VT = 250 V Ra = 0.3 Ohm N1 = 1000 rpm N2 = 800 rpm Ia1 = 5 A
Q: (b) Differentiate the terms of 'Dynamic Braking’ and Plugging' in DC Motor drives when it is in…
A: The solution is given below
Q: 2000rpm, 240V DC shunt motor has armature resistance of 0.80 and the field resistance is XQ. When…
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Q: Briefly describe the working principle of induction motor speed control for below and above base…
A: The induction machine for the variable speed applications, especially the cage rotor type, is mostly…
Q: A 10-pole 60-Hz synchronous motor operates with a developed power of 100 hp, which is its rated full…
A: NO OF POLES, P = 10 FREQUENCY, f = 60 Hz TORQUE ANGLE, θ = 20o DEVELOPED POWER, Po = 100 HP =…
Q: The field winding resistance of DC shunt motor compared to its armature resistance is Very high…
A: In this answer we will try to find about different windings in the DC machine as shown below and…
Q: A shunt DC motor has a shunt field resistance of400 and an armature resistance of 0.2Ω . The…
A: Hello. Since you have posted question with multiple subparts and not specified which part to solve.…
Q: From the curves above find: the stall torque ?? in mN-m, the no-load speed ?max in rpm and the…
A: From given data, we have to find i) stall torque in mN-m ii) the no-load speed max in rpm iii)…
Q: A series motor, having an armature resistance of 0.1 ohm and a field resistance of 0.15ohm, takes 48…
A: Given a Series motor having, Armature resistance, Ra= 0.1 ohm Field Resistance, Rse= 0.15 ohm…
Q: 5. In a DC shunt motor, speed is related to armature current as _____________ a) Directly…
A: 5.) As the armature current increases there is a decrease in speed. Hence the armature current and…
Q: Explain the speed control of DC shunt motor
A: According to the question, Explain the speed control of DC shunt motor.
Q: A 100-volt shunt motor is developing 6 hp while operating at an over-all efficiency of 86%. The…
A: Given, A 100-volt shunt motor having, Output power, Pop=6 hp= 6×745.5=4473 watt Efficiency, η=…
Q: Write the theoretical equation of speed/ torque characteristic for cumulatively compound…
A: cumulatively compound:- As the load increases armature current increases and the series flux also…
Q: SOLVE THE PROBLEM COMPLETELY AND CORRECTLY. The input current to a 220-V, long shunt compound motor…
A: We are given a long shunt compound DC motor for which: Terminal Voltage (Vt) = 220 Volt; Shunt…
Q: Q/ A 7.46 kW, 220 V, 900 rpm shunt motor has a full-load efficiency of 88 percent, an armature…
A: According to the question, we have to find, the motor output, the armature current, and the inserted…
Q: (3) Draw the electrical equivalent circuits for DC shunt motor and DC serial motor carefully and as…
A: The electrical equivalent circuit of DC shunt motor is shown below:
Q: What us the no load speed of DC Shunt motor?
A: As per our policy, i am attempting first question. A DC shunt motor is a type of self-excited DC…
Q: (a) A d.c. shunt motor takes an armature current of 30 A from a voltage supply given 210V. Armature…
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Q: 1. Define the DC motor drive 2. Classify the DC motor drive 3. How can be controlling on the speed…
A: NOTE- As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the…
Q: For a load such as PWM adjustable speed drives, the true power factor is equal to the displacement…
A: the true power factor is same as the displacement power factor in case of the linear load.
Q: For a certain polyphase induction motor, which at full load operates at Its maximum power factor,…
A: Under the voltage control method, the torque is directly proportional to the square of the voltage.…
Q: Figure (in video) shows a 250V series dc mofor with compensating windings, and the total series…
A: Given data, Armature current, Ia=50 A Total series resistance, Ra+Rs=0.08 ohm Terminal voltage V…
Q: Describe simply, in one(1) sentence, how we can increase the value of the armature current in a…
A: In this question we will write how we can increase the value of the armature current in a shunt dc…
Q: Explain with diagrams the operation of single stack variable reluctance stepper motor. Is it…
A: The principal of the variable reactance stepper motor is based on the property of flux lines which…
Q: What do you understand by multi quadrant operation in an Electric drive? What are the advantages of…
A: Types of quadrant operation in Electric Drive Forward Motoring Reverse Motoring Forward Braking…
Q: Explain how we can use the frequency for speed control of the asynchronous motor. And describe the…
A: consider the given question;
Q: Explain with diagrams the operation of single stack variable reluctance stepper motor. Is it…
A: To Explain with diagrams the operation of single stack variable reluctance stepper motor.
Q: Briefly identify and explain all the essential components of Direct-Torque Control method.
A: Direct torque control: It is a method to control the torque of the 3-phase ac motor in variable…
Q: The no-load speed of a 230 V separately excited de motor is 1400 rpm. The armature resistance drop…
A: Given that DC motor is separately excited and all voltage drop is zero. Given values are -…
Q: Draw the speed torque characteristics of de series motor and explain
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Q: 28/ How can the speed of a shunt dc motor be ontrolled? Explain in detail.
A:
Describe the operation of a variable speed drive used in industry.
State advantages of variable speed drive bring to the industrial environment.
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Solved in 2 steps
- List and briefly explain the three (3) control strategies used in AC variable speed motorsDescribe simply, in one(1) sentence, how we can increase the value of the armature current in a shunt dc motor in the case of an increase in load while keeping the input power supply constant?For a load such as PWM adjustable speed drives, the true power factor is equal to the displacement power factor. " True False
- Q4: Explain the meaning of the Torque-Speed characteristics of the stepper motor from the driver design point of view?A 100-volt shunt motor is developing 6 hp while operating at an over-all efficiency of 86%. The armature and shunt field resistances are 0.06 and 50 ohms respectively. Determine the stray power losses.Explain how we can use the frequency for speed control of the asynchronous motor. And describe the speed-dependent torque and stator voltage changes by drawing.
- Electrical Engineering. Explain briefly in one sentence how do we maximize the value of the armature currentin a shunt dc motor in the event of increase load, maintaining the input power supply thesame?A 10-pole 60-Hz synchronous motor operates with a developed power of 100 hp, which is its rated full load. The torque angle is 20°. Plot the torque–speed characteristic to scale, showing the values for rated torque and for the pull-out torque.A 200V shunt motor drives a 200 Nm torque load when running at 1400 rpm. The armature and shunt field resistance are 0.008Ώ and 50Ώ.Calculate the value of the dynamic braking resistor that will be capable of 750 Nm torque at 1000rpm.The current drawn by the motor is 504 A .
- A 75-HP, three-phase, six-pole, 60-Hz, Y-connected, cylindrical-rotor synchronous motor has synchronous reactance of 9.6 Ω per phase. Its rated terminal voltage is 500 v per phase. (a) Find the value of excitation voltage that makes maximum torque to be 120 percent of rated torque. (b) The machine is operated with the excitation voltage set as in part (a). For rated load torque, find the armature current, the power factor, and the torque angle.Given a 10-hp 230-volt 1000-rpm series motor having rated load efficiency of 85.5%, Ra = 0.28 Ω, and Rs = 0.15 Ω. a) Assuming that the field flux varies directly with the armature current, what value of resistance should be placed in series with this motor when starting, in order that the starting current maybe limited to a value that will exert a starting torque equal to 1.5 times rated-load torque?Q/ A 3-phase squirrel-cage induction motor, at rated voltage and frequency, has a maximum torque of 225 percent and starting torque of 150 percent of full-load torque. Neglect stator resistance and rotational losses and assume costant rotor resistance. Calculate:i) the slip at maximum torque.ii) the slip at full load.
