A balanced three-phase Y-connected generator with positive sequence has an impedance of 0.2 + j0.5Q/ø and an internal voltage of 120 VI¢The generator feeds a balanced three-phase Y-connected load having an impedance of 39 + j282/ ø. The impedance of the line connecting the generator to the load is 0.8 +jl.50/ø. The a-phase internal voltage of the generator is specified as the reference phasor. a) Construct the a-phase equivalent circuit of the system. b) Calculate the three line currents I4, IbB, and Ic-

Q: A 3-phase synchronous generator has no-load line-to-line terminal voltage of 1KV. When the output…

A:

Q: Zjine 1:10 10:1 |Vc = 13.84 0° kV Z1oad T1 T2 A 13.8-kV, single-phase generator supplies power to a…

A: The transformer has a primary and a secondary side. It converts electrical power to electrical power…

Q: A three-phase alternator generating unbalanced voltages is connected to an unbalanced load through a…

A:

Q: For a power station the yearly load duration curve is a straight line from 50,000 to 4000 kw. To…

A: Capacity of Generator 1 & 2 = 20,000 kW Capacity of Generator 3 = 7000 kW Pmax = 50000 kW Pmin =…

Q: The single-line diagram of a subtransmision system is presented in the figure below. At point B a…

A: Three phase fault is the symmetrical fault and it is the most severe fault.

Q: A three-phase star-connected, 50-Hz generator has 48 coils per phase and a flux per pole of 0.1 Wb.…

A: Note: Since nothing is specified, so we will consider full pitch coil with pitch factor kc=1. One…

Q: 3. What must be the speed of a six-pole 25-Hz synchronous generator? -a) 500 rpm b) 900 грm c) 1200…

A:

Q: Two three-phase transformers of equal voltage ratios are operating in parallel. The load draws a…

A: Given: load current IL=200∠-cos-10.9IL=200∠-25.84° AZ1=0.1+j0.3 ΩZ2=0.2+j0.5 Ω

Q: 1.) A 6 pole, 75 Hz, 240 V, Y-connected, 3-phase generator has a synchronous reactance of 2 ohms and…

A: As per the guidelines of Bartley we supposed to answer first three subpart only.

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.