Lab 4: Synchronous MachinePreliminary:1. For a synchronous generator with 2 poles and the rotating speed of 3000 rpm,calculate the frequency of the output voltage from this synchronous generator.2. A synchronous generator is connected to an inductive load, please draw phasordiagram to show the relationship between the internal generated voltage of thegenerator and the terminal voltage across the load. If the same generator is connectedto a capacitive load, please draw phasor diagram to show the relationship between theinternal generated voltage of the generator and the terminal voltage cross the loadagain. Explain the difference of the terminal voltage responses at these two types ofloads.

According to question: 1. P=2NS=3000rpm∵NS=120fP⇒f=PNS120⇒f=2×3000120∴f=50Hz

Answered: Preliminary: 1. For a synchronous…

Preliminary: 1. For a synchronous generator with 2 poles and the rotating speed of 3000 rpm, calculate the frequency of the output voltage from this synchronous generator.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.48P

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Concept explainers

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.

Question

Lab 4: Synchronous Machine
Preliminary:
1. For a synchronous generator with 2 poles and the rotating speed of 3000 rpm,
calculate the frequency of the output voltage from this synchronous generator.
2. A synchronous generator is connected to an inductive load, please draw phasor
diagram to show the relationship between the internal generated voltage of the
generator and the terminal voltage across the load. If the same generator is connected
to a capacitive load, please draw phasor diagram to show the relationship between the
internal generated voltage of the generator and the terminal voltage cross the load
again. Explain the difference of the terminal voltage responses at these two types of
loads.

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