The ac armature winding of an alternator isA. Always Star connected. B. Always delta connected

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: A three phase 12 pole star connected alternator has 130 slots on the armature. Each slot contains 10…

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Q: Armature reaction in an alternator affects generated voltage/phase Select one: O True O False

A: In this question we will write effect of armature reaction in an alternator....

Q: Explain how two or more alternators can be synchronised

A: We need to explain how two or more alternators can be synchronised.

Q: What is short circuit characteristics of (s.c.c) of an alternator Explain? Explain the effect of…

A: According to the bartleby's guideline we should solve only one question so please post another…

Q: i. What are different types of rotors used in an alternator?

A: There  are mainly two types of rotors used in alternator.

Q: What is the freq. of a 10-pole alternator when running at 360 rpm? (b) At what speeds should a…

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Q: Which of the following is/are a part a generator's electric circuit? a) the commutator b) the…

A: The explanation is as follows.

Q: I revolution of a 6 pole synchronous machine is degrees electrical a. 720 O b. 1000 c. 3600 d. 1080

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Q: A 8 pole, three-phase, star-connected alternator has an armature with 140 slots and 6 conductors per…

A: 3 phase star connected alternator has  8 pole, total no of slot =140 6 conductor per slot Speed N=…

Q: 3. How does the armature reaction vary with the power factor of loads in an alternator?

A: Unity power factor: In case of unity power factor tha generated EMF lag the field flux by 90 degree.…

Q: Armature reaction in an alternator primarily affects

A: Conceptual Background:- Armature Reaction:- Simply put, the armature reaction depicts how the…

Q: 24. A) What form of emf is generated in a coil that is rotated in a magnetic field? a) AC b) DC c)…

A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: ih 16 A 2-pole d.c. shunt generator has a useful flux per pole of 0.03 Wb. The armature winding…

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Q: Draw the developed diagram for the stator winding of a 3-ph, 2-pole 1.M. The winding is double layer…

A: Here,  The stator winding is a double layer with a full pitch coil. The number of slots is 2 per…

Q: A 3-ɸ, 4 pole, star connected alternator has 72 slots with two conductors per slot. The pitch of the…

A: Given  3-ϕ ,4 pole AlternateorNumber of slots S=72Conductors per slot Z/slot=2The pitch of the coil…

Q: In the DC shunt generator, the induced voltage in idle operation is 127V. Output voltage when loaded…

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Q: CREATE A WINDING TABLE, WINDING DIAGRAM, AND WINDING PLATE: (4 poles, 26 conductors, double…

A: 4 poles,, 26 conductors, double layer, simplex WAVE winding

Q: A 2-pole d.c. shunt generator has a useful flux per pole of 0.03 Wb. The armature winding consist of…

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Q: There are 90 slots in the armature of a 3-phase, 50 Hz., 6 pole, star connected alternator. Winding…

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Q: 2. Calculate the power produced by the generator. 3. What are the main features of the series field…

A: Power produced by generator

Q: If the output voltage across the transformer secondary coil is Vm AC volt. a- Give a circuit to…

A: We want the output as DC value. Hence a rectifier type circuit must be present. The input AC voltage…

Q: A DC generator with an armature resistance of 0.3 ohm and a shunt winding resistance of 125 ohm…

A: For generator ,  Armature current = Load current + shunt field current  developed power = Armature…

Q: 16. In an alternator, what is pitch factor? 17. The power factor of the alternator will depend on…

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Q: Write down the Construction of an alternator with the help of diagram and write its Principle of…

A: Alternator is derived from ' alternating  ' . Alternator is an electric generator which converts…

Q: 1- In an alternator, the armature reaction influences the magnitude of Wave form of generated…

A: NOTE- “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: There are 180 double wound slots in a 3-phase, 50 Hz., 500 rpm, star connected alternator. Coil span…

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Q: In an On-Off AC Voltage controller, the ON time is 50 cycles and duty cycle is 0.25. The OFF time…

A: Let M be the number of on cycles and N be number of off cycles. Duty cycle=no.on cyclesno.on…

Q: Identify the machine where the Rotating magnetic field is produced. a. Three Phase Induction Motor…

A: We need to Identify the machine where the Rotating magnetic field is produced. a. Three Phase…

Q: In a motor-generator set, calculate the number of poles required in the motor to convert AC 60 Hz…

A: In this question , we will find no of poles of motor with given motor generator set data...

Q: 1- Please answer the following questions. a- How is the alternator end voltage change in resistive…

A: a- How is the alternator end voltage change in resistive load, inductive load and capacitive loads…

Q: A separately excited DC generator has six poles and is running at 1150 rpm. The armature has 120…

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Q: 16 A 2-pole d.c. shunt generator has a useful flux per pole of 0.03 Wb. The armature winding consist…

A: DC shunt generator No of pole 2 Speed N= 1200 rpm Flux per pole 0.03 No of turns 200 No of…

Q: The synchronous generator excitation system...

A: There are various generator excitation system-  DC exciter Brushless exciter AC exciter   a- Here…

Q: WHAT ARE THE TWO TYPES OF AN ALTERNATOR WITH REGARDS TO THE CONSTRUCTIONS AND ITS APPLICATION

A: The solution is given below

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.