E-1). The amount of torque developed by a 3-phase squirrel-cage induction motor from no-load to rated-load is_________ proportional to the amount of current flow through the rotor conductors. a) directly b) inversely E-2). If a 3-phase squirrel-cage induction motor were to run at synchronous speed, there would be no relative motion between the rotating magnetic field and the rotor conductors. As a result, there would be no voltage induced in the rotor conductors and no torque developed. a) true b) false E-3). What is the difference between synchronous speed and rotor speed of a 3-phase squirrel-cage induction motor called? a) outrun rpm b) sub-synchronous speed c) slip d) none of the above

Q: A 10-pole DC generator has a simplex lap-wound armature containing 100 coils of 10 turns each. The…

A:

Q: A 4 pole generator with wave wound armature has 58 slots each having 24 conductors. The flux per…

A: Given :For wave connection, A= 2  No. of Pole, P= 4 Slots= 58, each having 24 conductors So, Z=…

Q: 30. A) Why is there a small emf generated in a series generator at no load? a) the residual magnetic…

A: Solve for both

Q: A 6-pole, 3-phase AC generator has 12 slots per pole and four conductors per slots. The winding is…

A: It is given that: Number of poles=P=6Number of phases=m=3Number of slots=S=12Number of conductors…

Q: ) the armature windings of a 12-pole DC machine are composed of 72 coils with 10 windings, and the…

A:

Q: 2) the armature windings of a 12-pole DC machine are composed of 72 coils with 10 windings, and the…

A:

Q: a. Explain how a rotating magnetic field is produced in a three-phase induction motor. b. Explain…

A: a) Rotating Magnetic Field When a three-phase supply is applied to a three-phase distributed…

Q: The shunt generator wave-winding generates induction voltages 60 V at speed 1000 r.p.m and the…

A: The DC shunt Generator  Wave winding so parallel path A= 2 Case 1. Induction voltage E=60V at speed…

Q: If residual magnetism of a shunt generator is destroyed due to any reason, it may be restored by…

A: 1) To start a self-excited DC shunt generator, the voltage build-up is required. Various…

Q: The result of no-load test on a 3-phase Y-connected induction motor are as follows: line to line…

A: According to the question we have to calculate the value of, a. resistance per phase representing…

Q: Q1/(a) Discuss B-H curve of a ferro-magnetic material.

A:

Q: + 3.26 A 4-pole lap-wound de generator is designed to have an average air gap flux density of 0.8 T.…

A: 8 pole lap wound(A=P=4) B=0.8TRa=0.3ΩVbd=2V

Q: A.Why a three-phase system is mandatory use for factories using heavy loads? B. Explain briefly how…

A: Introduction: Three phase system: At the same current, a three-phase circuit provides more power…

Q: The machine shown in Figure 2 has three concentrated stator coils, each of eight turns. The coils…

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Q: How is a rotating magnetic field produced in a three-phase induction motor? Explain it with the help…

A:

Q: he field current of a synchronous generator is adjusted to give an air-gap flux of 0.01 reber per…

A:

Q: QUESTION 1 When discussing motors with commutators and brushes, the neutral plane is: O…

A: Four options are given in the question. We need to choose the correct option. It is asked when…

Q: $2 8 cm to Nj=200 sarım 16 cm N2=500 sanm 8 cm 16 cm -8 cm 16 cm -8 cm -8 cm Derinlik = 8 cm st

A: Mean path of the flux is shown as follows-

Q: The break operation of the I.M. at speed less than synchronous speed is: OWhen rotor rotates in the…

A: In this question,   We need to choose the correct options The break operation of the induction motor…

Q: The stator MMF(magnetomotive force) is not taken into calculation in this circuit. Only magnet…

A: Magnetic circuits are analysis to electrical circuits.Hence source transform can be appliead to…

Q: Sheet charges are ps1 = 3 nC/m² at (-3, 0, 0), p.2 = -4 nC/m² at (1, 0, 0) and p3= 6 nC/m² at (4, 0,…

A:

Q: 38. A) Armature reaction in a DC generator can be compensated for by inserting__________ between the…

A: In this we need to tell the correct option for the given blank space.

Q: Q2/ A lap-wound de generator runs at 600 rpm has an open circuit voltage of 290 V. the commutator…

A:

Q: An 6-pole d.c. generator has 475 armature conductors, and a useful flux of 16 mWb per pole. What…

A: We need to find out generated emf for given machine .

Q: The armature of a 6-pole D.C. machine has a diameter of 350mm and is wave wound with 800 conductors…

A: Given data, No. of poles (N)=6 No. of conductors =800 Effective length=200mm The given value of…

Q: An eight-pole d.c. the generator has a per pole flux of 40 mWb, and winding is connected in t lap…

A: It is given that: Number of Poles=P=8Per pole flux=ϕ=40 mWb=40×10-3 WbNumber of…

Q: Total number of conductors on the armature (ii) voltage induced by the generator (in Volts)

A:

Q: How does three phase excitation of a synchronous machine stator give rise to a rotating magnetic…

A: The stator of a synchronous machine is one of its fundamental components, and it plays a crucial…

Q: B-a). A shaded-pole induction motor's rotating magnetic field is created by ___________ . a)…

A: a) In a shaded pole induction motor rotating magnetic field is created by shading coils. When a…

Q: 7) The flux per pole of a four-pole generator is 0.05 wb. It driven at a speed of 1500 rpm. In order…

A:

Q: 6. Hysteresis loss depends upon_ a. the volume and grade of iron c. frequency of magnetic reversals…

A:

Q: No load test was conducted on a three phase induction motor at different input voltages and the…

A: In induction motor, overall constant loss will be the sum of iron loss and mechanical loss. But…

Q: Electrical Engineering Consider a balanced 3-phase current flowing into the stator of a 2-pole…

A:

Q: The motor will work when the wire loop is connected to the [select all that apply) split ring…

A: The commutator changes direction of current at a point where direction is zero. This keeps the…

Q: Q#3: In the 3-phase synchronous machine we deal with the two power supplies AC and DC. AC supply is…

A:

Q: (a) A 2 pole generator with wave wound armature has 75 slots each having 10 conductors. The flux per…

A: In this question , we will find speed in question 1 with given data when generator wave wound...In…

Q: (a) A 2 pole generator with wave wound armature has 85 slots each having 14 conductors. The flux per…

A: Generated EMF=Flux×speed×Number of conductors60×No. polesNo. of parallel paths. For Lap winding No.…

Q: A) Although the magnetic field for each phase of a 3-phase induction motor is merely switching back…

A: A) Given statement, Although the magnetic field for each phase of a 3-phase induction motor is…

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.