Compare between the capacitor-start and the shaded pole motors.
Q: Can single phase induction motor be self-started? Explain the operation of a split phase single…
A: No, the single-phase induction motor cannot be self-started if the auxiliary winding stator winding…
Q: No-load speed of which of the ollowing DC motor will be highest? *
A: For DC motor Eb∝Nφ Eb is back emf N is speed φ magnetic flux For DC series motor at no load current…
Q: What is the main precaution feature of running the series-wound dc motor Explain with the aid of…
A: The series-wound motor has poor speed regulation as compared to other DC motors. When the shaft of…
Q: Draw Star/Delta control and power circuit diagram for 3 Phase Induction motor?
A: Power circuit requires 440V whereas the control circuit requires 220vac ,120vac or 24vdc depending…
Q: In Experiment Star-Delta Starting of 3-Phase Induction Motor, How it was made sure in the control…
A: Star-Delta starter: This method can only be applied to the motor where the stator of the motor is…
Q: List the methods of speed control of three phase induction motor from both stator and rotor sides?
A: The list of methods of speed control of three-phase induction motor from the stator side is as…
Q: |Compare between the capacitor-start and the shaded pole motors.
A:
Q: 2)List the methods of speed control of three phase induction motor from both stator and rotor sides?
A: Since you posted the multiple question so I solve 2nd questions for you List of speed control from…
Q: Q/ How to reverse the direction of rotation of the DC motor in the series connection once and in the…
A:
Q: load, ascertain whether it is running at lagging power factor or a leading power factor without the…
A: An AC motor is an electrical machine which takes AC electrical input energy and produces mechanical…
Q: Explain briefly the capacitor start single phase induction motor, how can you determine the value of…
A: Need to explain about capacitor start single phase induction motor and find capacitor of maximum…
Q: Explain how the loaded operation experiment of the induction motor is done by drawing the experiment…
A: The loaded operation experiment of the induction motor: The loaded operation on the induction motor…
Q: Why small voltage is built up immediately in rotating shunt machine eve without field excitation?
A: For every self excited generator there must exist some residual flux . When armature rotates…
Q: b) Draw the speed control block diagram of the DC motor, which can be controlled with armature…
A: Ac speed control motors- Constructio motor- the construction of the single phase and three-phase…
Q: 4. At 75% from the rated speed in the motor we isolated the auxiliary winding from the cct why?…
A: 4. Auxiliary winding is connected at the starting to maintain torque. At 75% of rated speed in…
Q: Draw and explain the block diagram for speed control of an Induction machine by variable voltage…
A: Speed Control of IM There are many methods to control the speed of IM. Variable Voltage Control…
Q: Name three characteristics that make the synchronous motor different from an induction motor?
A:
Q: Field divertor method of speed control in DC series motor is used for (estimated time 1 minute) a.…
A: In this question, Choose the correct option Field divertor method of speed control in DC series…
Q: A- Explain how you can control the speed of D.C shunt motor ?
A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.
Q: discuss a) the magetising current (Im) of 3-phase motor b) how will you design the rotor of a…
A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…
Q: mpare Permanent Magnet DC motor, Series DC Motor, Shunt DC Motor, and Compound DC Motor by: Speed…
A: 1) The speed regulation of the motor is basically the speed of the motor when the motor is at no…
Q: What is energy efficient induction motor and conventional indcuction motor?
A: Now a days, the demand of electricity is increasing day by day which requires additional power. Due…
Q: How high is the rated torque of the separately excited shunt wound de motor?
A: DC Motor DC motor is a rotating electrical machine that converts direct current electrical into…
Q: 4-What is the main function of a diverter used in series wound DC motor?
A:
Q: What is the typical speed regulation on a synchronous motor?
A: Consider that the synchronous motor is a motor that rotates with synchronous speed.
Q: Can single phase induction motor be self-started? Explain the operation of a capacitor run single…
A: The single-phase induction motor is not self-starting if we don't have auxiliary winding. The main…
Q: What is the common speed for jet pump motors?
A: A motors of very speed are needed because the jet pump is needed to pump the water with very high…
Q: - In speed control of dc shunt motor, the speed is inversely proportional
A: The relation of back emf generated in D.C. motor is given as, Here, k is the proportionality…
Q: (V/F) speed control can be adopted in wound rotor induction motor?* True- O Páise,
A: V/F control is an induction motor control method which ensures the output voltage is proportional…
Q: 3- What is the function of a commutator in the DC motor?
A: DC motor converts electrical energy into mechanical energy.
Q: Briefly explain why a synchronous motor requires starting mechanism. Is there any starting problem…
A: The synchronous motor requires a starting mechanism because; - over a certain measure, synchronous…
Q: Outline the locked rotor and no load tests for an induction motor
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: What are the methods for Starting Torque of a Squirrel-cage Motor, Explain one?
A:
Q: Is it possible for the line-line voltages of a wye connected induction motor during the blocked…
A: Blocked rotor test Less voltage applied to Each phase of motor Rotor are blocked Full load current…
Q: How high is the rated torque of separately excited shunt wound DC Motor?
A:
Q: b) Explain the repulsion-start type universal motors.
A: Here the repulsion-start type universal motor operation will be discussed, along with the advantages…
Q: Five Advantages of squirrel cage motors...
A: The rotor of an induction motor with a cylindrical winding and copper bars along the edge parallel…
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: 3. How does exceeding the pull – out torque affect the synchronous motor? 4. How can a self- start…
A: 3. When load to be increased then the torque angle also increases until the conditions arises when…
Q: Define critical resistance for a shunt generator. Can you describe the electronic speed control…
A: The critical speed of a DC generator is the low speed at which it fails to get excite. It is the…
Q: ) Explain the shunt-winding type universal motors. ) Explain the repulsion-start type universal…
A: a) to explain the shunt winding type universal motors b) to explain the repulsion start type…
Q: In the experiment of finding the parameters of synchronous machine, the field winding should be *…
A: 1. In synchronous machine, field winding is connected with dc supply.
Q: 5. How does the saturation in the machine affect the speed of shunt motor?
A: We can find that how the saturation in the machine affect the speed of the shunt motor by the speed…
Q: Discuss the operation of capacitor-start-and-run motors with a diagram.
A: Single phase induction motor is not self starting motor. To start this motor different methods are…
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Solved in 4 steps with 2 images
- 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(Qld) A three-phase 20-pole induction motor is rated at 800 V, 50 Hz. What is the synchronous speed of this machine if the voltage at its terminals is reduced to 400 V (a) 150 rpm, (b) 300 rpm, (c) 600 rpm, (d) 3000 rpmDesign and develop equivalent circuit model of a single phase Induction motor with th consideration of core losses present with the parameter consideration of stator resistance R1 and reactance X1 and two rotor parameters which includes r2,x2 and magnetising reactance xm. (Illustration is required) Draw by hand please
- 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.3.An induction motor has a rotor resistance and reactance at standstill of 0.1 ohm and 3.5 ohm respectively. At standstill the voltage induced to the rotor is 60volts per phase. If the slip is 5%, determine the rotor currentL-1). The 3-phase wound-rotor induction motor has .... . a) high starting torque b) low starting current c) both "a" and "b" d) neither "a" nor "b" L-2). The 3-phase wound-rotor induction.........a) motor has a wire wound rotor b) motor's rotor can be connected to an external resistive load by way of slip rings and brushes c) motor requires more maintenance than the 3-phase squirrel-cage induction motor d) all of the above L-3). The 3-phase wound-rotor induction motor's rotor circuit's resistance should be adjusted so it is__________ during starting. a) low b) high c) either "a" or "b" d) neither "a" nor "b" L-4). Will a 3-phase wound-rotor induction motor start with no external circuit connected to its rotor leads? a) yes b) no
- The name plate of single phase induction motor has following data output 373W,230V, frequency 50Hz. Input current 2.9A and power factor is 0.71. Speed 1420 rpm What is efficiency of motor.A value of magnetizing current in a 3-phase induction motor * gives power factor smaller .. larger smaller. .poor large . better O large...poor OA freewheeling DC motor is driven with 1000 rpm and a nominal load torque of 80Nm. The field circuit resistance is 200 and the armature circuit resistance is 0.2 O. The field coils are fed with a zero degree transmission angle through a single-phase fully controlled converter connected to a single-phase 240V source. The armature circuit is fed from a single phase 400V source through another fully controlled converter. Magnetic saturation has been neglected, the motor constant is given as 0.8 V - s / A - rad. Assuming that there is no fluctuation in armature and field current, find the control angle of the converter feeding the armature at nominal load. If you want to leave the question blank, click again on the option you marked.
- The other possible methods of starting 3-phase induction motors.B/ Fill in the blanks: TV ezur 1- In a three-phase induction motor iron losses in stator will be..... that in rotor. 2- In three-phase induction motors sometimes copper bars are placed deep in the rotor to........... 3- Blocked rotor test on induction motors is used to find out. R..., ke, X. 4- The maximum torque in an induction motor depends on .............and .....3-Phase 50Hz 6 pole induction motor has rotor resistance of 0.1 ohm and reactance of 0.92. ignore voltage drop in stator and assume thee rotor resistance is constant. Full load slip is 3%, then find Tmax /Tfl