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

Find the input resistance and output resistance, Quite often an amplifier i...

Quite often an amplifier is used as a component of an amplifier circuit. Consider the amplifier circuit shown in Figure, which contains an amplifier block as an internal component.

Electronic Devices, To demonstrate a practical method of testing semiconduc...

To demonstrate a practical method of testing semiconductor diodes.

Electricity and gas hazards, Electricity beyond doubt is very useful and es...

Electricity beyond doubt is very useful and essential for us; but if dealt with carelessly, it can prove to be very fatal. It is compulsory for a laboratory assistant to be sure of

Draw and explain the circuit of wein bridge oscillator, Q. Draw and explain...

Q. Draw and explain the circuit of Wein bridge oscillator. Obtain the expressions for the (i) frequency of oscillation and (ii) condition for oscillation. Will oscillat

What is programmable interrupt controller, What is programmable interrupt c...

What is programmable interrupt controller? The Programmable interrupt controller is used when several I/O devices transfer datausing interrupt and they are connected to the sam

Applications of holography, Applications of holography 1.       Hologra...

Applications of holography 1.       Holography is used in the non-destructive tests by interferometic methods. In this method called double exposure holographic interferometry,

Electromechanical energy conversion and device, importance of electromechan...

importance of electromechanical energy conversion and device in electrical engineering

Determine the parameters of the equivalent circuit, No-load and blocked-rot...

No-load and blocked-rotor tests are conducted on a three-phase,wye-connected inductionmotor with the following results. The line-to-line voltage, line current, and total input powe

Field effect transistor, Field effect transistor: Primarily difference...

Field effect transistor: Primarily difference between bit and jet is that bit transistor is a current controlled device while jet is a voltage controlled device.  Is a direct

What is cascade, An arrangement of Windows so every window is neatly stacke...

An arrangement of Windows so every window is neatly stacked with only the title bar of every window is showing.

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