When the DC excitation source is external to the alternator, the alternator is referred to as _________? a. Self excited b. Regenerative c. Sourcing d. Separately excited

Q: (a) The reactance's of the alternator during the periods of the subtransient, transient and steady…

A: Given : XL=0.15 ΩXD=0.24 ΩXF=0.44 ΩXa=0.7 Ω Step 1 : Calculate transient reactance  Transient…

Q: When slip of a three phase induction machine becomes negative, it will be functioning as a motor.…

A:

Q: To improve power factor by static capacitor method. If the capacitance per phase is increases, then…

A:

Q: Which of the following is more likely to cause problems with motors? a) positive sequence harmonics,…

A: Which of the following is more likely to cause problems with motors? Negative sequence harmonics,…

Q: The reactance’s of the alternator  during the periods of the subtransient, transient and steady…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: Identify test/tests is applicable only to Salient pole type of Alternator. O a. Blocked Rotor test O…

A: In this we will write about test applicable for salient alternator...

Q: 4.1Two synchronous generators need to be connected in parallel to supply a load of 10 MW.  The first…

A: The solution is given below

Q: Question: In Dc chopper,the input voltage waveform is and the output voltage waveform is Option 1:…

A: In this question, choose the correct options What is input voltage waveform and what is output…

Q: 1-Which function we call for three phase short circuit occurs in synchronous generator armature…

A: When a fault is taking place on a 3 phase system the electrical quantities are severely unbalanced.…

Q: Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. The highest…

A: Given data:Required information:

Q: Completely solve and box the final answer. Write legibly A 1200 kVA, 6600 volts, 3-phase Y…

A: The power factor of a Electrical system defines the relationship between the Real power and apparent…

Q: The reactance's of the alternator during the periods of the subtransient, transient and steady state…

A: As damper winding time constant is very less so damper winding is out of circuit at the end of the…

Q: Alternators generate a/an __________ voltage whose frequency depends entirely upon the speed of…

A: In this question we will write about alternator voltage....

Q: Given: 1. 10 Pole, wye-connected three-phase alternator 2. 240 slots  3. 4 turns per coil (lap…

A: Given,Pole, P = 10Slots = 240The flux per pole,  maxwell = 0.0846 WeberTo find the total line - to -…

Q: Adjustment resistance in rotor system will --------when three phase load decrease. remain constant…

A: There are few questions related to the basic  connection and construction details of Synchronous…

Q: A 3-phase Y-connected alternator delivers a unity power-factor load at 200 volts. If the…

A: Given:          3 phase alternators           Unity Power factor  Load             Vf = 200 Volt…

Q: Problem 2 - A 1000 – MVA, 20 – kV, 60 – Hzthree-phase generator is connected through a 1000 – MVA,…

A:

Q: Complete the answer : A 6 pole lap wound generator has 22 slots with 22 conductors/slot and the…

A: In this question we will find total EMF generated in dc generator...

Q: a- Compare the excitation of 3-phase induction and synchronous machines.

A: As per the policy, I can attempt only one individual question at a time. Compare the excitation of 3…

Q: A short shunt compound generator delivers a load current of 30 A and has Ra = 0.05ohm, Rse = 0.3 ohm…

A: According to the question we have to find the value of the induced emf and armature current.

Q: Explain the Brush less excitation scheme of Synchronous generator with Pilote excitor. Also identify…

A: You have asked multiple independent questions. We are authorized to answer one question at a time.…

Q: A three-phase, star-connected, 10 kVA, 230 V alternator has an armature resistance of 0.5 02 per…

A: Given dataTo find outPercentage voltage regulation for a power factor of .Percentage voltage…

Q: B) A 3-phase, 1500 kVA, 13.2 kV Y-connected synchronous generator, is supplying a real power of 120…

A: In this question we need to choose a correct option.

Q: TUTORIAL PROBLEMS A 3-phase, star-connected alternator is rated at 15000 kVA, 11 kV. The armature…

A: Given data : Rated KVA S=15000kVA=15MVA Terminal voltage Vt=11kV=Vph=6.3508kV Armature resistance…

Q: A 1200 KW,60 Hz synchronous alternator A is in parallel with a 400 kW,60 Hz alternator B.Both…

A: The load supplied by the alternator A is three-fourth of the 1000 kW bus, the load supplied is,…

Q: 3. Two similar single phase alternators are operating in parallel. The armature winding resistance…

A: In parallel connections circulating current flows from leading angle to lagging angle, assume that…

Q: For a turbine that is connected to 50 Hz alternator, rated speed is 600 rpm. For an alternator poles…

A: Given data:Required information:

Q: A 3Ø, Y-connected alternator is rated at 1,600KVA, 13.5KV. The armature effective AC resistance per…

A: Given VL =13500 V Ra =1.5 Ω let Xs =synchronous reactance load power =1280 W at unit power factor

Q: The reactance’s of the alternator  during the periods of the subtransient, transient and steady…

A: According to question: Transient reactance is calculated as…

Q: Why brushless exciters are used in a synchronous generators. If two parallel alternators’ have…

A: The brushes are one of the important component of any machine. For the generators it is used to…

Q: - A single phase 2000V alternator has armature resistance and reactance of 0.95 ohm and 5.68 ohm.…

A: In this question we need to find the voltage regulation of alternator and real , reactive and…

Q: Outline with the aid of a suitable diagram the necessary power conversion stages required to…

A: b) Power conversion stages in PM synchronous generator Permanent magnet synchronous generator  can…

Q: 10. What is the angle of lead ? (DC GENERATOR QUESTION)

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

Q: What is the basic principle of alternators?

A:

Q: An 11-kV, 1000-kVA, 3-phase, Y-connected alternator has a resistance of 2 0 per phase. The…

A:

Q: In differential compound DC Generator the shunt field current and the series field current are in…

A: Q.1 In differential compound shunt and series flux are opposite to each other  As,    Hence given…

Q: How to adjust reactive power in synchronous machine? A) by changing the load applied to the shaft…

A: It is known that a synchronous generator, will deliver reactive power  when Efcosδ>V…

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.