Explain Alternating-Current Circuts?

Q: What are the main effects of losses on the performance of the alternator?

A: Alternator- An alternator is an electrical machine that can convert mechanical input to electrical…

Q: 3. If the variable DC source is reversed, how does this affect the clipping?

A:

Q: What are the losses taking place in an alternator?

A: The Power losses occur in the alternator due to a number of different mechanisms. These can be…

Q: A Flyback converter (for questions 1-3) shown below has the following parameters. Via-100V, Vo-20v,…

A: Given Vin =100VVo =20VPo =40WD =0.25 Fsw =250 KHzL =100 μH

Q: In DC generators, lap winding is suitable for ) high voltage, high current low voltage, high current…

A:

Q: purpose of brushes in a dc machine is__________. to change ac to dc signal to remove the losses in…

A: brushes in DC machine is placed between rorating commutator and external circuit. We will consider…

Q: Why transient steady in electric circuits is important ?

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: tors? y does the starting current extre

A: In this question, we have to write about why starting current high in induction motors and function…

Q: What should be the contactor value for the arm with a step power of 50 kVAr in a compensation panel?

A: Reactive power is a parameter to measure the voltage. The voltage fluctuation has to be avoided as…

Q: Will current be leading or lagging voltage in an inductive load? Will the reactive

A: In a resistive load , there is no phase difference between V and I Therefore voltage is in phase…

Q: Electrical Engineering DRAW THE FOLLOWING DIAGRAMS OF INDUCTION MOTOR AND LABEL THEM ( MAKE SURE…

A: Electrical Engineering DRAW THE FOLLOWING DIAGRAMS OF INDUCTION MOTOR AND LABEL THEM  1)   3-phase…

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: Is this armature winding a progressive or a retro-progressive winding? 6. 10 16 3* 12 4- 6 14 North…

A: If after one round of the armature the coil falls in a slot left to its starting slot the winging is…

Q: Which one of the following is damaging to many insulating materials used in alternators? A. Eddy…

A: According to the question we have to discuss which one of the given damaging to many insulating…

Q: Discuss with a skatch what a compond DC motor.

A:

Q: The basic requirement of a d.c. armature winding is that it must be a closed one O a lap winding a…

A: In this solution let us try to give the correct reasonings for all the questions as shown below.

Q: Compare AC and DC voltage and current sources as defined by voltage polarity, curren direction and…

A: 1. COMPARISON BETWEEN AC AND DC VOLTAGE:                                    AC VOLTAGE…

Q: Q# 4 What current / is flowing around a loop shown in Figure and Draw this current as function of…

A: IF SOME CUTS THE WIRE OF THE ABOVE CIRCUIT:- as we know that the in the case of the RL circuit as we…

Q: What is the electrical current? What direction does the conventional current flow

A:

Q: The validity of Ohm's law in AC circuits and impedance?

A:

Q: How to measure high alternating currents and high alternating voltages during the transmission and…

A: The device that is used to measure the high alternating current is known as the current transformer.…

Q: Explain in your own words what an Aircraft Alternating Current (AC) System is?

A: An Aircraft Alternating Current AC System  is the network of the generation , transmission…

Q: 25. A six-pole wave wound armature has 250 conductors when driven at 400 rpm, the emf generated is…

A: EMF induced in dc machine E = Flux ×speed in rpm ×No. of armature conductors60×no. of polesno. of…

Q: Q1: A voltage Vin(t) from a function generator shown in Figurel is displayed on an oscilloscope.…

A: The AC coupling in the oscilloscope will filter out the DC component present in the input signal…

Q: amature windings commonly used in DC machines a DC shunt generator are wound with a large numbe C…

A: 3. In Dc generator brushes are used to convertalterating current (ac) which is armature wlndingsto…

Q: Define three (3) advantages of alternating current (AC) for long distance power ransmission compare…

A:

Q: One of essential condition for paralleling two DC generators is     Equal current     Correct

A: Paralleling of DC generators is performed to have greater reliability.

Q: Three Phase Induction Motor Load Test, . At what load will the efficiency be maximum

A: The answer as given below:

Q: The single - phase ac voltage controller with inductive load. Plot the waveform of output voltage…

A: Draw the circuit diagram for a single-phase ac voltage regulator with the inductive load as below.

Q: Why do we need to supply DC field current instead of AC in an Alternator rotor? Explain briefly your…

A: Explanation is given in step -2

Q: what is the effect of number of turns and radius in inductance

A:

Q: mode of operation: e and rms value of load current e and rms value of thyristor current

A: The RMS load current per phase is given by:…

Q: What is a lagging voltage

A: The explanation is as follows.

Q: For a four pole, 16 slot armature with two coil-side/slot having wave connected progressive winding…

A: Given: Number of poles, P=4 Armature slots, S=16 Two coil-side/slots Wave connected progressive…

Q: 5. The relationship between hysteresis loss and frequeney is ...

A: A brief about Hysteresis Loss:- It takes place because of the magnetization and demagnetization of…

Q: Answer the following and elaborate your answer.  Define Three- Phase AC Motor.  Define WYE and…

A: 1. THREE PHASE AC MOTOR: Because of its relative simplicity, proven durability, and long service…

Q: How do I solve this using Kirchoff's Voltage Law?

A: As per Kirchoff's Voltage Law (KVL ), the algebric sum of all the voltages in a closed loop is equal…

Q: 4.2 For a step up d.c.-d.c. chopper with an input d.c. voltage of 220 volts, if the output voltage…

A: Given a step up DC-DC chopper with, Input DC voltage, Vs=220 volts Required output voltage, Vo=330 V…

Q: e) What causes frequency variations in the power system? What determines the direction of frequency…

A: A healthy power system always operates at a constant frequency. There are two major reasons of…

Q: We know there are few conditions for alternator synchronization. How many conditions are there?…

A: There are total 5 conditions of synchronization .

Q: Why we do not usually operate AC circuit at max power?

A:

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

A: Given:- P=2Double layer,Full PitchSlotsPolePhase=2

Q: Do you think that a three – phase induction motor could be used to establish the phase sequence of a…

A: Yes, it is possible that a three- phase induction motor could be used to establish the phase…

Q: What is power loss

A: Most of human energy requirement is meet by generating electrical energy. Once electrical energy is…

Q: Explain the diagram? Explain why the polarity (+ and - inputs) of the connections is not important…

A: It is being given that :

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.