Why does a split- phase motor continue to operate after the start windings have been disconnected from the circuit?

Q: Explain why the alternators are never solidly grounded? How the short circuit current is limited in…

A: Alternators are the important parts of electrical machines and power systems in terms of power…

Q: Explain why an induction motor can not run at synchronous speed?

A:

Q: What removes the starting winding from the electrical circuit of an opentype split-phase motor once…

A: in the split-phase motor when the motor reaches to 75 % of the operating speed because the starting…

Q: In In Star-Delta Starting of 3-Phase Induction Motor Why we do not have the motor continue running…

A: During starting of induction motor, the machine draws very heavy current at the time of starting.…

Q: when determining the full load current of three phase motors, what is used to determine that value

A: The full load current of the three-phase motor exists when the motor operates at the maximum torque.…

Q: what are the three major types of split phase motors?

A: The three major types of split phase induction motors are: 1) resistance start induction motor…

Q: what device is generally used to disconnect the start windings of a split phase motor for open type…

A: In this question we need to answer which device is generally used to disconnect the start windings…

Q: A 3-phase, 60Hz, 4-pole induction motor has a rotor leakage reactance of 0.8Ω per phase and a rotor…

A: The solution is given below

Q: Why should the D.C series motor not be operated at no load and light load?

A: For a dc series motor , armature winding is in series with field winding ,which means armature…

Q: why automatic re-closers are not recommended in a system where large numbers of induction motors are…

A: Automatic Re-closer It is a protective switch-like circuit breaker designed to operate at a very…

Q: It is not advisable to start induction motors of higher ratings (generally above 25kW) rectly from…

A: An induction motor is similar to a short-circuiting secondary on a poly-phase transformer. As a…

Q: Comment about effect of decrease stator voltage on three phase induction motor speed

A: Basically, stator voltage control method which  is used to control the speed of an induction motor…

Q: How is the direction of rotation changed of a split phase

A: Split phase motor consists of two windings 1. Main winding 2. Starting winding

Q: Attempt the following: a- Draw and explain a completes equivalent circuit of three phase induction…

A: a

Q: IN Counter-Current Breaking o f a 3-Phase Induction Motor (Reversing the Operation o f a 3-Phase…

A: IN Counter-Current Breaking o f a 3-Phase Induction Motor(Reversing the Operation o f a 3-Phase…

Q: Why induction motor cannot run on synchronous speed? Explain using slip.

A: In an engine, simultaneous speed is the speed at which the attractive field pivots. Contingent upon…

Q: How could the direction of rotation of a single-phase capacitor-start induction motor be reversed?

A: The motor contains two windings first is the main winding and the second is the starter winding.…

Q: 1.a. Which one of the following statements is true about a dual-voltage capacitor-start motor? A.…

A: Dual- voltage capacitor start motor : Dual voltage capacitor-start motors are only possible, when…

Q: In Synchronous Motor Operation How the regulating characteristics can be obtained from V curve?

A: The V curve is the graph between the stator current and the field current for different loads on the…

Q: 6. What Will Happen If The Direction Of Current At The Terminals Of A D.c Motor Is Reversed?

A:

Q: Why is it that the induction motor operate less than the synchronous speed?

A: The synchronous speed of an Induction motor can be explained as the speed of rotating magnetic field…

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: Why do large induction motors sometimes cause a dip in the supply system voltage when they are…

A: The reasons for the Voltage sag or Dip in the Voltage : 1.The Large Induction motors usually draws 6…

Q: What is the effect of changing the sequence of 02 phas in the electric feeder (single phase,…

A: According to Bartleby guidelines we are supposed to answer only one question at a time if they are…

Q: How important is the auxiliary winding in a single phase induction motor?

A: In this question we will write How important is the auxiliary winding in a single phase induction…

Q: Can an induction motor operate at the synchronous speed?Why?

A:

Q: Draw the equivalent circuit of three phase induction motor referring all parameters primary to…

A: INDUCTION MOTOR: Based on the rotor construction, the induction motor is classified into Squirrel…

Q: Why there is need of starter in the 3-phase induction motor?

A: At the Starting of 3-phase induction motor, If we apply rated voltage to Stator, very high current…

Q: 2-The speed of a slip-ring induction motor cannot be controlled by: (a) Rotor resistance control.…

A: B)pole changing method We can control the speed of induction motor with help of rotor resistance and…

Q: Which of the following type of motor isn't normally reversible? A. Repulsion-induction B. Shaded…

A: to identify and mark the option which is not reversible

Q: What are the procedure in rewinding a three-phase motor?

A: The procedure of rewinding a three-phase motor is described in the following section.

Q: 6. What is the synchronous speed of a 6 pole induction motor on a 60 Hz, 480 V, 3 phase system?

A:

Q: A 3-phase, slip-ring, induction motor with star-connected rotor has an induced e.m.f. of 120 volts…

A:

Q: Why does an alternator's voltage drop sharply when it is loaded down with a lagging load?

A: With legging load the voltage drop across reactances increases because of negative angle of current

Q: A three phase slip ring induction motor has a star connected rotor. It has an induced emf of 60…

A: Step 1  Induced emf E = 60V = 603  = 34.64 V / phase  Rotor resistance per phase R2 = 0.5Ω  Rotor…

Q: What are the causes of faulty starting of a synchronous motor ? A synchronous motor starts as usual…

A: The causes of faulty starting of a synchronous motor: Voltage may be too low, at least half voltage…

Q: Why single phase induction motor is not self starting

A: The reason for the single phase motor to be not self starting is double field revolving theory.…

Q: What are the different applications of split-phase motor?

A: SPLIT-PHASE TYPE MOTORS: The split phase type motors is most widely used for single voltage…

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: What is the starting torque developed by a split-phase motor? or a capacitor start

A: As per bartleby guideline for more than one question asked only first is to be answered please…

Q: What is the value of value of motor speed when three phase induction motor is at starting condition?

A: The speed of the motor is measured by using the tachometer.

Q: Question 5:Is there any voltage drop when the generator is operating at no-load? Explain the reason.

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: 24.a. What type of drive is needed for a vertical lift bridge using two induction motors to operate…

A: Vertical lift bridges employ a counterweight and cable system to raise and lower an inner lift span…

Q: What is the reason why a synchronous motor can be found running at no load?

A: we need to explain synchronous motor.

Q: Q.24 How can the direction of rotation of a split-phase motor be reversed? Select one: A. BY…

A: we need to change the direction of the rotating magnetic field produced by the main and starter…

Q: Analysis of Balanced Three-Phase Induction Motor Performance under Unbalanced Supply?

A: The analysis or study of a balanced three-phase induction motor's performance under the unbalanced…

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.