Why is the ac induction motor used more often than other types?

Question

Why is the ac induction motor used more often than other types?

asked Aug 18, 2021 by anonymous

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Related questions

What determines the amount of slip in an induction motor?

Description : What determines the amount of slip in an induction motor?

Last Answer : Load.

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Description : In the illustrated ground detection system with a ground on phase A, if the switch is opened __________. EL-0009 A. lamp A will dim or go out depending on the severity of the ground B. all three ... lamp A will be brighter D. lamp A will start flickering if the ground is in an AC induction motor

Last Answer : Answer: B

The reversal of an AC, three-phase, induction motor is accomplished by ______________. A. changing all three motor leads B. reversing the position of the slip rings C. interchanging any two of the three motor leads D. interchanging any two brushes

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Last Answer : Answer: C

The most suitable servomotor for low power applications is (A) a dc series motor. (B) a dc shunt motor. (C) an ac two-phase induction motor. (D) an ac series motor.

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Last Answer : (B) a dc shunt motor.

To reverse the direction of rotation of a three-phase AC induction motor, do one of the following: w) reverse any two of the three-phase connections x) change the frequency of the applied AC power y) operate the motor below the stall torque at very high slip z) none of the above

Description : To reverse the direction of rotation of a three-phase AC induction motor, do one of the following: w) reverse any two of the three-phase connections x) change the frequency of the applied AC power y) operate the motor below the stall torque at very high slip z) none of the above

Last Answer : ANSWER: W -- REVERSE ANY TWO OF THE THREE-PHASE CONNECTIONS

is induction motor ac or dc?

Last Answer : Induction motor is a AC motor it is also known as asynchronous motor .

What type of ac motor is most widely used?

Description : What type of ac motor is most widely used?

Last Answer : Single-phase induction motor.

What are the three basic types of ac motors?

Description : What are the three basic types of ac motors?

Last Answer : Series, synchronous, induction.

Which of the following types of motors is often designed for use in correcting power factor? A. Polyphase B. Wound-rotor C. Induction D. Synchronous

Description : Which of the following types of motors is often designed for use in correcting power factor? A. Polyphase B. Wound-rotor C. Induction D. Synchronous

Last Answer : Answer: D

What types of slots are preferred for the induction motor?

Description : What types of slots are preferred for the induction motor?

Last Answer : Semi enclosed slots are preferred for induction motor. It results in less air gap contraction factor giving a small value of magnetizing currents, low tooth pulsation loss and much quieter operation(less noise)

What are the different types of stator winding in induction motor?

Description : What are the different types of stator winding in induction motor?

Last Answer : The different types of stator windings are mush winding, lap winding and wave winding.

Mention different types of speed control of slip ring induction motor?

Description : Mention different types of speed control of slip ring induction motor?

Last Answer : a) By changing supply frequency b) By changing the number of stator poles c) By rotor rheostat control d) By operating two motors in cascade

State the types of Induction motor ?

Description : State the types of Induction motor ?

Last Answer : 1) Squirrel cage Induction motor 2) Wound or slip ring Induction motor.

What are the types starters used for starting of induction motor?

Description : What are the types starters used for starting of induction motor?

Last Answer : a. Direct on line starter (air break) mechanically. b. Direct on line starter (air break or oil immersed) electrically. c. Star delta starter. d. Slipring motor starter. e. Auto transformer starter.

How many induction motor types

Description : And application.

Last Answer : AC and DC motar

Types of three phase induction motor rotor

Description : Types of three phase induction motor rotor

Last Answer : Types of three phase induction motor rotorSquirrel cage rotor : There are two types of three phase induction motor rotor one is squirrel cage rotor and second is wound rotor. About 80 to ... control of three phase induction motor via rotor resistance control method is possible with this rotor.

What three types of storage elements most often are used in modulators?

Description : What three types of storage elements most often are used in modulators?

Last Answer : Capacitor, artificial transmission line, or pulse-forming network.

What three types of storage elements most often are used in modulators?

Description : What three types of storage elements most often are used in modulators?

Last Answer : Capacitor, artificial transmission line, or pulse-forming network.

Which of the two types of deflection coils (fixed or rotating) is used most often?

Description : Which of the two types of deflection coils (fixed or rotating) is used most often?

Last Answer : Fixed.

How do split-phase induction motors become self-starting?

Description : How do split-phase induction motors become self-starting?

Last Answer : By using combinations of inductance and capacitance to apply out-of phase currents in starting windings.

Magnetic induction occurs when there is relative motion between what two elements?

Description : Magnetic induction occurs when there is relative motion between what two elements?

Last Answer : A conductor and a magnetic field.

The operating torque of the upper induction disc-type element, or timer element, of an AC reverse power relay is obtained from ____________. A. the main bus B. a separate battery source C. line voltage D. electromagnets

Description : The operating torque of the upper induction disc-type element, or timer element, of an AC reverse power relay is obtained from ____________. A. the main bus B. a separate battery source C. line voltage D. electromagnets

Last Answer : Answer: D

A switchboard for an AC electrical system requires the use of which of the following devices? A. Frequency meter. B. Ohmmeter. C. Induction voltage regulator. D. Current transformer governor.

Description : A switchboard for an AC electrical system requires the use of which of the following devices? A. Frequency meter. B. Ohmmeter. C. Induction voltage regulator. D. Current transformer governor.

Last Answer : Answer: A

The principle of AC generator is: a. Mutual induction b. self induction c. electromagnetic induction d. Induction

Description : The principle of AC generator is: a. Mutual induction b. self induction c. electromagnetic induction d. Induction

Last Answer : b. self induction

Consider the following statements with regard to induction type wattmeter : 1. Can be used on both ac and...

Description : Consider the following statements with regard to induction type wattmeter : 1. Can be used on both ac and dc systems. 2. Power consumption is relatively low. 3. It is accurate only at stated frequency and temperature. Which ... /are correct ? (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

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What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?

Description : What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?

Last Answer : A commutator

Why is the dc scale on a multimeter different than the ac scale?

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Last Answer : The meter movement reacts to average ac voltage and current and the effective value is desired.

If an ac voltmeter is connected between the S2 and S3 windings on a TX, at what two rotor positions should the voltmeter read maximum voltage?

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Last Answer : . 150º and 330º

What leads in a simple synchro system are connected to the ac power line?

Description : What leads in a simple synchro system are connected to the ac power line?

Last Answer : The rotor leads.

When used for ac current control, during which alternation of the ac cycle does the TRIAC control current flow?

Description : When used for ac current control, during which alternation of the ac cycle does the TRIAC control current flow?

Last Answer : During both alternations.

What is the basic difference between the primaries of ac and dc rate generators?

Description : What is the basic difference between the primaries of ac and dc rate generators?

Last Answer : The method of primary excitation (ac and permanent magnet).

In the output of an ac error detector, what indicates the (a) direction and (b) amount of control necessary for correspondence?

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Most shipboard distribution systems use ac power that has what number of phases?

Description : Most shipboard distribution systems use ac power that has what number of phases?

Last Answer : Three.

What are the electrons called that give up energy to the ac field in a magnetron?

Description : What are the electrons called that give up energy to the ac field in a magnetron?

Last Answer : Working electrons.

Why does using ac vice dc bias voltage result in a stronger output signal?

Description : Why does using ac vice dc bias voltage result in a stronger output signal?

Last Answer : Because an ac bias voltage of the proper frequency and level places the input signal away from both steps in the magnetism curve. The result is two undistorted output signals that are combined into one strong output.

What are three advantages of adding an ac bias voltage to the input signal instead of adding a fixed dc bias voltage?

Description : What are three advantages of adding an ac bias voltage to the input signal instead of adding a fixed dc bias voltage?

Last Answer : a. Reproduces a stronger output signal. b. Greatly improves the SNR. c. Greatly reduces the natural tape hiss.

Why does adding dc vice ac bias voltage to the input signal result in a poor signal-to-noise ratio (SNR)?

Description : Why does adding dc vice ac bias voltage to the input signal result in a poor signal-to-noise ratio (SNR)?

Last Answer : With dc bias, the SNR is poor because only a small portion of the magnetism curve is straight enough to use, thus the output signal is weak compared with the natural tape hiss.

rid-leak biasing in effect rectifies the input ac signal. What feature

Description : rid-leak biasing in effect rectifies the input ac signal. What feature

Last Answer : Unequal charge and discharge paths of the coupling capacitor Cc.

If the mu of a tube is 85 and the signal at the control grid is 4 volts ac, the plate voltage will vary by what amount?

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Last Answer : 340 volts.

The plate voltage of a tube will vary 126 volts when a 3-volt ac signal is applied to the control grid. What is the gain of this tube?

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An ac voltage is applied across a diode. The tube will conduct when

Description : An ac voltage is applied across a diode. The tube will conduct when

Last Answer : Positive.

What is the difference between calculating impedance in a series ac circuit and in a parallel ac circuit?

Description : What is the difference between calculating impedance in a series ac circuit and in a parallel ac circuit?

Last Answer : In a series circuit impedance is calculated from the values of resistance and reactance. In a parallel circuit, the values of resistive current and reactive current must be used to calculate total impedance.

What is the reactive power in an ac circuit?

Description : What is the reactive power in an ac circuit?

Last Answer : Reactive power is the power returned to the source by the reactive components of the circuit.

What is the true power in an ac circuit?

Description : What is the true power in an ac circuit?

Last Answer : True power is the power dissipated in the resistance of the circuit or the power actually used in the circuit.

What is the value of Z in a series ac circuit where XL = 6ohms, XC = 3ohms, and R = 4ohms?

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Last Answer : X = XL – XC or X = XC - XL

What term is given to total opposition to ac in a circuit?

Description : What term is given to total opposition to ac in a circuit?

Last Answer : Impedance