Explain synchronous generators, Electrical Engineering

Assignment Help:

Explain Synchronous Generators?

They can be utilized to produce or absorb reactive power. An over-excited machine produces reactive power when an under-excited machine absorbs it. The generator is the major source of supply to the system of both of the positive and negative VArs. The ability to supply VArs is ascertained by the short-circuit ratio (1/ synchronous reactance).

For economic reasons, in current units this ratio is kept low and therefore the inherent ability to run at leading power factors is not large. For instance, a 200 MW, 0.85 p.f. machine with a 10% stability margin can just supply 45 MVAr at full power outputs.


Related Discussions:- Explain synchronous generators

Explain the working of elecro static precipitator, With the help of neat an...

With the help of neat and clean diagram illustrate the working of Elecro Static Precipitator (ESP). Describe the following: (a) Coal Handling Systems (b) Coal Storage

Determine the shaft power output, Determine the shaft power output: A ...

Determine the shaft power output: A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 180 Nm when the rotor emf frequency is 2 Hz. Determ

Polarisation, describe the working and construction diagram of nicholas pri...

describe the working and construction diagram of nicholas prism

Why we need biasing, Q. Why we Need biasing? Need for biasing : Baising...

Q. Why we Need biasing? Need for biasing : Baising is necessary to establish the quiescent operating point so that the device operates with the linear region without exceeding

Find differential equation & state-space representation, 1. For the followi...

1. For the following network: a. Find the differential equation assuming that v ( t ) is the input and the charge on the capacitor q ( t ) is the output. Hints: i R1= ( i R2

Analysis on solar charging system buck converter with VMC, PLS WRITE THE IN...

PLS WRITE THE INTRODUCTION, METHODOLOGY AND LITERATURE REVIEW

Sketch the timing diagram for a 4-bit ripple counter, Q. Sketch the timing ...

Q. Sketch the timing diagram for a 4-bit ripple counter which uses T flip-flops.

Determine line voltage for the y- connected machine, A 3-phase, 16-pole syn...

A 3-phase, 16-pole synchronous machine is driven by a prime mover at a speed of 600-rpm with the stator open circuited. The rotor flux per pole is 0.025-Wb. Determine (a) the fr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd