Determine the KVAR rating of the capacitor connected in each phase. Also comment on the type of supplied KVAR, Whether it is unity, leading or lagging.

Q: The shunt branches of are neglected to draw the reactance diagram. Static Loads Transformer O…

A: The explanation is as follows.

Q: is the RMS value of output voltage of the step down chopper which is having 240 V as a input for a…

A:

Q: The generated voltage per phase of an alternator is E0 while the speed of rotor rotation is 3000…

A: We know the relation between emf phase ans speed of rotor. Ephase=4.44Kpkdfrequency*flux*turn…

Q: For the second-order systems below, (1) plot the roots on the s-plane, (2) characterize the system's…

A: For the given second-order systems…

Q: PROBLEM 4 A 14 pole, three phase alternator has 294 slots. Each coil spans 15 slots. If the winding…

A: We are authorized to answer only 1 question at a time since you have not mentioned which question…

Q: A small filament transformer has a laminated sheet steel core whose average path length is 20cm and…

A: Given Average path lenght = 20 cm Cross sectional area = 5 cm2 Primary winding connection 120 V and…

Q: Loss of excitation is one of the stator faults of alternator which is operational at power station O…

A: 1)Loss of excitation is one of the fault on rotor. 2)Loss of excitation is a very common fault in…

Q: sformer 1200 KVA, 11000/2200 V, 50 Hz e reactance/phase of the primary winding ar ding values for…

A:

Q: To change the direction of rotation of a series wound DC generator the general rule is to

A: To change the direction of rotation of a series wound DC generator  Note: we always change the…

Q: The winding data for three different alternators are as follows I. 60 slots, four poles, span 1 to 9…

A: pitch factor=cos(short pitch angle2). slot angle=180slot /pole.

Q: A 3-phase induction motor draws 50 kW from a 220 V, 50 Hz mains. The rotor emf makes 100…

A: Given, A 3-phase induction motor draws, Electrical input = 50 kW Stator losses = 2 kW Supplied…

Q: In a single phase transformer, if the RMS value of emf is 240 V, then the average value is.

A:

Q: The rotor winding of the induction motor at no load condition is equivalent to O connected to an…

A: Rotor Winding of the Induction Motor at No load Condition is Equivalent

Q: A 400 V , 50 Hz ,three phase alternator ,rated at 200 kVA at a lagging power factor of 0.835 , is…

A: Given: A 400 V, 50 Hz, three-phase alternator, rated at 200 kVA at a lagging power factor of 0.835,…

Q: A 400 v, 50 Hz, three phase alternators, rated at 75 kVA, is star connected and driven at 1000…

A: According to the question we have to find the smallest lagging power factor at which the alternator…

Q: The generated voltage per phase of an alternator is E0 while the speed of rotor rotation is 3000…

A: We will establish the relation between the generated voltage and the speed of the alternator.

Q: A 3– phase 8 pole alternator having delta connected winding is supplying at a frequency of 50 Hz.…

A: Given a 3-phase alternator having delta connected winding with, Number of pole, P = 8 Frequency, f =…

Q: The generated voltage per phase of an alternator is EO while the speed of rotor rotation is 3000…

A: We will establish a relation between generated emf and the speed with which the rotor is rotating to…

Q: 1) Which pole-zero plots(s) (if any) correspond to a natural frequency ωn greater than 10 rad/sec?…

A: For the given pole-zero plots of the systems, we need to determine which systems have (a) a natural…

Q: A synchronous generator has 15 slots per pole. If each coil spans 7 slot pitches, the value 0.5877…

A: Pitch factor (Kp)=cosα2Coil span angle =βshort pitch angle =α(β)+ (α)=180°

Q: QUESTION 19 E-06, PC-02. Three inductors 15 mH, 15 mH and 15 mH are connected in series. What is the…

A:

Q: Q5) An alternator has 36 slots per pole. One coil lies in the slots number 1 and 31. Calculate the…

A: The question is about winding pitch.

Q: v. With reference to an 50 Hz3 phase alternator explain how P,Q,V and F are controlled.

A: It is asked to explain the control of P (active power),Q (reactive power), V (voltage) and F…

Q: In a single phase transformer, if the RMS value of emf is 240 V, then the average value is O 138.56…

A:

Q: A 4-pole, 3 phase, 50 Hz, wye-connected alternator has 44 slots with 60 turns in each coil and…

A:

Q: A star connected Alternator excitation voltage and terminal voltages per phase respectively are 180V…

A: Alternator: It is used to convert the mechanical energy to electrical power in the form of…

Q: Question- A current transformer has a phase error of +5.5 °. Find the phase angle between the…

A: Given- Current transformer- Phase error=+5.5o, To Find- The phase angle between the primary and…

Q: In a series AC resistive circuit: O a) voltage leads current by 90°(degrees). b) current leads…

A: Option c Current and voltage are in phase

Q: 1. A load of 50 ohms resistance and 0.4 H inductance are connected in series to 100 volts, 60 hz a-c…

A: we have to calculate capacitance.

Q: The winding data for three different alternators are as follows 1. 60 slots, four poles, span 1 to 9…

A: We will find the pitch factor in each case as shown below.

Q: 36 slot 4 pole 3 phase alternator winding pg7 slot electrical angle by which the winding is quality…

A: Electrical machines can be either generator, transformer or motors. They can be either Ac machines…

Q: A 60 Hz alternator stator is wye connected with each phase winding having 24 turns of wire. The…

A: f=60HzT=24 turnsϕ=0.103 weber

Q: a) Draw a graph that depict single-phase waveforms for a purely sinusoidal 50 Hz voltage with…

A: a) Draw a graph that depict single-phase waveforms for a purely sinusoidal 50 Hz voltage with…

Q: 1. Sinewave A lags sinewave B by 30°. Both have peak values of 15V. Sinewave A is the reference with…

A:

Q: T or F, modify the wrong part if False, please underline twice your answer if True or False.…

A: In an alternator the armature current is in range of Kamp , so it is difficult to handle the large…

Q: The sinewave has a peak voltage of 7 A and a Half cycle value of 9.3333 ms. What is the period?…

A: Given: Sine wave has half cycle time period =  9.3333 ms, peak voltage = 7 V, To find: Period of the…

Q: What type of single phase transformer does this schematic represents ,and explains (ex ordinary…

A: The transformer represented in the given schematic diagram is

Q: The distribution factor for 90 slots, 10-pole, 3-phase winding is A 0.90 B C D 0.895 0.959 0.978

A: Given: A 3-phase winding machine with, Slots = 90. Pole = 10.

Q: 3.The voltage generated across one inductor of an alternator is 8.11V. There are 120 slots and 4…

A: The e.m.f induced in one conductor = 8.11 V No. of slots (S) = 120 Synchronous speed (Ns) = 720…

Q: Q5/C: Compare between Auto transformers and 2 winding transformers.

A: The transformer is a static electrical device in which is used to step up/down the current and…