Write four disadvantages of stator voltage speed control method of 3-phase induction motor
Q: When we use this type of single phase induction motors
A: When we use this type of single phase induction motors?
Q: Which among the given harmonic frequency add voltage in neutral wire in induction drive system. a.…
A: This question is based on the concept of harmonic sequencing. For a 50Hz fundamental frequency the…
Q: The purpose of providing dummy coils in a generator is To provide mechanical balance for the. a.…
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Q: 2) What are the salient features of supply voltage control method? Speed control three phase…
A: In this question we will write about speed control of 3 phase induction motor by supply voltage....
Q: Write four disadvantages of stator voltage speed control method of 3phase induction motor.
A: 1. In the power circuit of the AC regulator in the stator voltage control method When there is a…
Q: a capacitor for a capacitor-start copacitor-run motor is connected in _____ with the windings to…
A: The solution is given below
Q: What is the major difference between induction motor and synchronous motor
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Q: Write four disadvantages of stator voltage speed control method of 3-phase Induction motor.
A: The speed of induction motor is given by: NR=120fP(1-s) So to vary the speed of induction motor we…
Q: Explain the applications of three phase wound rotor I.M?
A: Wound rotor induction motor has advantage that external resistance can be added to control the speed…
Q: Discuss two ways of starting a single-phase induction moto
A: Single Phase Induction Motor: Single-phase induction motors are constructed in the same way as…
Q: f the power measured per phase is increasing, what will happen to the speed of the three phase…
A: Speed of induction motor is given by, Ns=120fP Here, Ns is synchronous speed f is frequency and P is…
Q: (a) Write four disadvantages of stator voltage speed control method of 3-phase Induction motor. (b)…
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Q: In a single phase AC capacitor start and run induction motor, the starting torque is given by…
A: This problem is from single phase IM. The solution is given below
Q: Tapped field control method is used in a. DC shunt motor b. DC compound motor
A: Tapped field control is used for controling the speed by adjusting field winding turns.
Q: 11/ Name the type of three-phase induction motor, which provides low starting torque. a. Squirrel…
A: Option) a Squirrel cage rotor have the low starting torque , the starting cannot be increased by…
Q: How does the equivalent circuit of an induction motor simplify to under blocked rotor conditions?…
A: TESTING OF INDUCTION MOTOR: No-load test. Blocked rotor test. Stator winding resistance test.…
Q: Then, Determine the appropriate starting method for single phase and three phase induction motors.…
A: Starting methods of single phase and three phase Induction motor
Q: a) Can single phase induction motor be self-started? Explain the operation of a capacitor run single…
A: 3. (a) Can single phase induction motor be self-started? Explain the operation of a capacitor run…
Q: Comment about effect of decrease supply frequency on three phase induction motor speed.
A: Formula for sycronous speed in induction motor is Ns=120 fp Where f is supply frequency P is…
Q: why the slip of induction motor is never zero.
A: slip of the induction motor can be given by the following equation Slip = ( synchronous speed -…
Q: 19. What effect does slip have on rotor reactance of a 3-phase squirrel-cage induction motor? a)…
A: ROTOR: Based on the rotor construction, the induction motor is classified into Squirrel cage…
Q: Describe types of Starters used in three phase induction motor and their Function.
A: Once a supply is connected to a three phase induction motor a rotating magnetic field will be set up…
Q: Explain the operation of three phase induction machine. (Not too long). Define slip.
A: A three phase induction motor has a stator and a rotor. The stator carries a 3-phase winding called…
Q: While starting a synchronous motor by induction motor action, field winding is. usually Connected to…
A: we have damper winding on rotor surface to avoid oscillations and to start the synchronous motor .…
Q: Q2. A. Explain why a single-phase induction motor requires a means of starting. B. Explain the…
A: Given: Single phase induction motor
Q: Draw and label both the power and control circuits of a 3-phase direct-on-line(DOL) starter on an…
A: We need to draw and label two diagrams for 3 phase DOL induction machine starter that is, Power…
Q: Parts and functions of the squirrel cage induction motor
A: The explanation is as follows.
Q: 3. Describe types of Starters used in three phase induction motor and their Function.
A: The huge current flowing inside an induction motor immediately after switching on supply creates…
Q: A drive train of the wind turbine includes a. Rotor b. Electric alternator c. Drive shaft and Gear…
A: Given The drive train of the wind turbine
Q: How rotor winding is derived the power in the three-phase induction motor? O a. from Single phase…
A: The power flow diagram of a three phase induction motor is shown below,
Q: Draw torque vs slip for an induction motor.
A: we need to draw torque vs slip for an induction motor.
Q: Calculate the steps in a 4 section rotor resistance starter for a 3-phase slipring induction motor…
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Q: With neat diagram explain squirrel cage rotor of 3-phase induction motor. Also draw and explain the…
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Q: hat are the differences in terms of construction and working principle between shaded pole induction…
A: The working guideline and development of Capacitor turn over inductor engines and capacitor start…
Q: What are the factors that the induced voltage in three phase induction motor depends upon and…
A: Ans-: Factors depends on a magnitude of induced voltage is the change of magnetic flux & the…
Q: Explain briefly the differences of induction motor & synchronous motor
A: differences of induction motor & synchronous motor.
Q: In which type of induction motor, external resistance can be connected? squirrel cage Slip ring…
A: external resistance can be added based on the construction of motors. For single phase motors there…
Q: Name the type of three-phase induction motor, which provides low starting torque. a. Squirrel cage…
A: In this question we will write about indictor motor having low starting torque....
Q: IM
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Q: In a three phase induction motor, voltage between the slip rings at standstill is 50 V. At full load…
A: According to the question, given, voltage between the slip rings at standstill = 50 V full load the…
Q: Skils Explain DOL starter of Single Phase Induction Motor briefly.
A: DOL STARTER DOL DIRECT ON LINE This is one of the basic starter. Components 1.The Direct On Line…
Q: Discuss why the starting torque of a three phase wound rotor induction motor is higher per amperage…
A: Discussion is why starting torque of 3 phase wound motor is greater than squirrel cage induction…
Q: With neat diagram explain slip ring rotor of 3-phase induction motor. Also draw and explain the…
A: 3-Phase slip ring Induction motor- 3-Phase induction machine- When three-phase stator displaced by…
Q: 26. Is the amount of motor reactive power Q higher than the amount of motor active power P when the…
A: When a three-phase induction motor operates on no-load then the line current drawn by the motor is…
Q: At the time of starting of three phase wound rotor induction motor external rotor resistance must be…
A: External resistance is connected in the three-phase wound rotor induction motor to limit the…
Q: Compare the properties of induction motor and synchronous motor.
A:
Q: Te frequency of the rotor under the free shaft condition of an induction motor is it 0Hz
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Q: The armature reaction occurs when a separately excited generator supplies rated load: Is always…
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Q: n a three phase induction motor, voltage between the slip rings at standstill is 50 V. At full load…
A: Given that E =50 V s=0.04 Formula of voltage between the slip rings at full load is given by…
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Solved in 2 steps
- State the types of induction motor1. The operation of Commutator in DC Motor is * O a) to convert dc to ac O b) to convert ac to dc O c) to convert fixed dc to variable dc O reverse the current direction in the rotating windings each half turnThe other possible methods of starting 3-phase induction motors.
- 2. Describe the Torque-Slip characteristics of a three phase induction motor.What is a single - phase induction motor? How does a single- phase induction motor work? How do you test a single phase motor? Which capacitor is used in single phase motor? What are the advantages of single phase induction motor? What are the applications of single phase induction motor? How does an induction motor start? What are the differences between single and three phase I.M ? What are the types of induction motor? What is the difference between induction motor and normal motor? Why three-phase induction motor self start while single phase motor does not self start?6- Which of the following supply is given to the rotor winding of 3-Phase Induction Motor: a) DC Supply b) AC Supply c) No Supply d) Pulsating Supply 7- 3-Phase Induction Motor will have Starting Torque and Starting Current a) High, High b) Low, Low. c) High, Low d) Low, High 8- Which of the following method is used for controlling the speed of an induction motor: a) Changing number of stator poles b) Supply voltage control c) Frequency control d) All the options are correct 9- Which of the following method cannot be used for starting of 3-Phase Squirrel Induction Motor: a) Star-Delta Starting b) Line resistor startling c) transformer Starter d) Rotor Resistance Starting 10- The rotor of a stepper motor has no: a) windings b) commutator c) brushes d) all of the above
- T-a. The direction of rotation of a single-phase split-phase motor can be change by........ a) reversing the connection of the start winding b) reversing the connection of the run winding c) reversing the connection of the start and run winding at the same time d) "a" or "b", not "c" T-b. Single-phase split-phase motors using an electrolytic capacitor in the start winding circuit should not be cycled more than about__________ time per hour. a) 8 b) 12 c) 24 d) none of the above T-c. When replacing the capacitor in a capacitor-start induction-run motor, one must be sure to replace the bad capacitor with__________ . a) a smaller one b) one of the same size c) a larger one d) none of the aboveWhat are the main parts of an single phase induction motor? Explain the function of each.Discuss the following statements briefly 1. Adding auxiliary winding in single phase induction motors. The starting capacitor of a capacitor start capacitor run induction motor is 100 µF while the running capacitor is 14 µF.