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

Set up a table for a 4-to-10 line excess-3 decoding, Q. (a) Excess-3 cod...

Q. (a) Excess-3 code is a 4-bit binary code for the 10 decimal digits and is found useful in digital computer arithmetic. Each combination is found by adding 3 to the decimal nu

Rectifiers - Rectifiers and inverters , Rectifiers As discussed  above...

Rectifiers As discussed  above the  purpose  of the  rectifier is to  convert the incoming  ac from a transformer or other ac  source  to some  form of  pulsating dc. That it i

Details of a distribution transformer, Electrical network details: 1  ...

Electrical network details: 1          single line diagrams with conductor sizes, transformer locations, consumer location, lengths, capacitors, and load, etc., 2

What do you mean by sensors or transducers, Q. What do you mean by Sensors ...

Q. What do you mean by Sensors or Transducers? In almost all engineering applications there arises a need tomeasure some physical quantities, such as positions, displacements,

Explain classification of energy band materials, With the help of energy ba...

With the help of energy bands explain how conduction takes place in conductors, semiconductors and insulators. On the basis of energy band materials are categorized as insulato

Analysis in equilibrium, Analysis in equilibrium : Solution of Poisson'...

Analysis in equilibrium : Solution of Poisson's Equation with suitable boundary conditions - Non-equilibrium analysis: The electron and hole densities are no longe

R.h. corkscrew rule, R.h. corkscrew rule Note the direction of the flu...

R.h. corkscrew rule Note the direction of the flux is given by Maxwell's 'R.H. corkscrew rule' and that the flux lines are continuous Applying  Ampere's  Law  to  a  concentri

MR, how to design a single phase distribution circuit from a supply point t...

how to design a single phase distribution circuit from a supply point to a load(lights)

Edc, transistor biasing stabilization problems

transistor biasing stabilization problems

Instruction size , Instruction size As we  have seen already  that eac...

Instruction size As we  have seen already  that each instruction has two parts Opcode ( Operation  Code) Which  tells  the types  of operation  to be  performed .

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