Open- and short-circuit test has been performed of a synchronous machine 45-kVA, three- phase, Y-connected, 220-V (line-to-line), six-pole, 50-Hz. The following data are taken from the open- and short-circuit characteristics : From the open-circuit characteristic: Line-to-line voltage = 220 V Field current = 2.84 A From the air-gap line: Field current = 2.20 A Line-to-line voltage = 202 V From the short-circuit characteristic: Field current = 2.20 A Armature current = 118 A Field current = 2.84 A Armature current = 152 A Find the unsaturated value of the synchronous reactance and its saturated value at rated voltage. *

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: An 8-pole, lap-wound armature has 1200 conductors and a flux per pole of 0.03Wb. Determine the…

A: It is given that:- P=8 Z=1200  ϕ=0.03 Wb N= 500 rev/min E(emf) = ?

Q: 38. A) Armature reaction in a DC generator can be compensated for by inserting__________ between the…

A: In this we need to tell the correct option for the given blank space.

Compensation Techniques

The compensation techniques are the methods that are employed in the electrical control systems to enhance the performance of the system. The performance are generally affected by the factors like lag in the compensating devices, slow response of the system of the components like sensors used in the control system. The basic compensation technique involves lag compensation, lead compensation or the combination of the both.