Q1.In the figure below, a percentage differential relay with a slope of 7% and a bias current of 0.1 Alis used to protect the generator coil. When the generator is under load, a short circuit occurs in part of the coil. The currents are shown in the figure. If we assume that the current transformers are 400/5 and without error, does the relay issue a cut-off command in this case? On a diagram, show the characteristic of the relay operation and the points that .represent the operating and blocking currents in the relay -Will changing the conversion ratio of current transformers to 200/5 and 400/1 change the performance of the relay? - If the current 320+j0 is constant, specify what will be the maximum output current of the relay?

Q: A compound generator has a lap-wound armature with 200 slots and four turns per coil. It is rotating…

A: As per the guidelines given, We can only provide the solution of the first three questions in…

Q: 24. A) What form of emf is generated in a coil that is rotated in a magnetic field? a) AC b) DC c)…

A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: A 4 pole lap connected shunt generator has 300 armature conductors and a flux per pole of 0.1webe.…

A:

Q: A 3-phase, 2-pole-pair, induction machine operates at 1450 revolutions per minute when fed from a…

A:

Q: 40 The armature, frame, and core of a 12-V DC control relay are made of sheet steel. The average…

A: Given data: The number of turns is: 250 The value of current is: 50 mA   a) The length in meter will…

Q: Q1) Answer the following: - 1- E = (V – laRa ) then N= 2-The consist of and 3-In a , the shunt field…

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

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.