Transitions Animations Slide ShoW 1. A 3- phase, 30 MVA, 33 KV alternator has internal reactance of 4% and negligible resistance. Find the external reactance per phase to be connected in series with the alternator so that steady current on short circuit does not exceed 10 times the full load. Also find Find the full load current.

Q: There are 160 slots in a 3-phase, 8-pole, 50 Hz., star connected alternator. There are 4 conductors…

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Q: A three-winding transformer is connected to an AC voltage source as shown in the figure. The number…

A: Given- 3 winding transformer, Number of turns- N1=100,N2=50,N3=50, Currents in secondary side- 2∠30o…

Q: Q20. The section bus-bars A and B as shown in Figure B5 are linked by a bus-bar reactors each rated…

A: The performance of a power system depends mainly on the performance of transmission lines in the…

Q: A 6-pole, 3-phase, 60-Hz alternator has 12 slots per pole and four conductors per slot. The winding…

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Q: The hysteresis coefficient of the core material of a power transformer is 110J/ m3. The eddy current…

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Q: A 1200 kVA, 6600 volts, 3-phase Y connected alternator, has an effective resistance of 0.4 ohms and…

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Q: The p.u. impedance value of an alternator corresponding to base values of 13.2 kV and 30 MVA is 0.2…

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Q: For the same alternator, the ratio of rated KVA, when connected as 3-phase winding alternator to…

A: During the 3-phase connection, the value of the phase spread will be ϕ=π3 Thus, the value of the…

Q: Don't use other platforms answer and also don't use chatgpt. A 3 phase 6000 kVA, 6600V, Y connected…

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Q: A. 2.4 C. 4.28 D. 4.57 2. A 3-phase 4-pole alternator has a single layer full-pitch winding with 8…

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Q: 8-pole 3-phase star-connected alternator with 144 grooves in its armature rotates at 900 rpm. There…

A: Given values are - P=8Phase=3GroovesSlotsS=144NS=900rpmConductors per groovesSlots=12Flux per…

Q: The core of a three phase, 50 Hz, 11000/550 V delta/star, 300 kVA, core-type transformer operates…

A: Given: 3-phase, f=50Hz ,11000/550V delta /star, 300kVA , Flux, ϕ=0.05Wb

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: The section bus-bars A and B are linked by a bus-bar reactor rated at 6000 kVA with 12% reactance.…

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Q: A three phase 4 pole star connected alternator has 120 slots on the armature. Each slot contains 8…

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Q: 3. A 30, 25 kV, 500 MVA, 60 Hz alternator has a synchronous reactance X, = 1.5 pu. The alternator is…

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Q: A three phase star connected alternator of 1000 KVA, and 4600 volts, has an armature resistance of 2…

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Q: A 25 cycle emf has an rms value of 250 volts, is zero and increasing positively when time is zero.…

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Q: - A3-phase, star-connected alternator is rated at 15000 kVA, 11 k V. The armature resistanc and…

A: The alternator is an electrical device used for the conversion of mechanical to electrical energy. A…

Q: A 3-phase,50Hz, 4-pole, Y-connected alternator has 6 slots per pole per phase. The armature has…

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Q: 1. A 2500-kVA, 6600-V, 3-phase, wye-connected alternator is operating at full-load and 0.8 p.f.…

A: Given, the alternator is Y- connected Rating (S)= 2500 kVA, Terminal line Voltage (Vt)= 6600 v…

Q: 2. What are the necessary conditions for successful operation of two single- phase transformers?

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: An alternator of frequency 50.3 Hz is to be synchronized with an infinite bus of frequency 50 Hz by…

A: Given values are - Alternator frequencyfa=50.3HzBus frequencyfb=50Hz Given that alternator is…

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

A: pitch factor can be calculated using the following relation Pitch factor = cos(alpha) / 2

Q: There are 144 slots in a 3-phase, 16-pole, 50 Hz., star connected alternator. There are 4 conductors…

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Q: A three-phase, 4-pole, 1,500 rpm alternating having a double layer-windings with 18 turns per coil.…

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Q: The reactance of a generator is given as 0.25 per-unit based on the generator’s of 18 kV, 500 MVA.…

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Q: Two 75 MVA 3-phase alternator are connected in parallel. The speed load characteristic of the first…

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Q: A synchronous generator runs at 250 rpm and generates at 50-Hz. There are 216 slots, each containing…

A: In this question,   We need to Find the emf induced in each phase winding and the terminal voltage?…

Q: A 2MVA, 2.3kV three - phase Y- connected alternator operates at rated kVA at a power factor of 80%.…

A: In this question we need to find a efficiency of the given alternator

Q: A three phase star connected, 1500 kVA, 13 kV alternator has an armature resistance of 0.9 ohm and a…

A: Given :  Power = 1500 Kva  Voltage  =13 kV Ra= 0.9 ohm  Xa= 8 ohm

Q: Draw a complete equivalent circuit of one phase only of a synchronous generator. Then draw the…

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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.