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

Electromagnetism, explain how can you find hysteresis loss from hysteresis ...

explain how can you find hysteresis loss from hysteresis loop

Describe the two core-excited states, Using the optimized 6-311G(d,p) geome...

Using the optimized 6-311G(d,p) geometry determined in question 1, perform the following equivalent core calculations for any two inequivalent carbons of butadiene: (a) Equivale

Find the small-signal equivalent circuit parameters, Given that a BJT has β...

Given that a BJT has β = 60, an operating point defined by I CQ = 2.5 mA, and an Early voltage V A = 50 V. Find the small-signal equivalent circuit parameters g m , r o , and rπ.

What are the constructional features of dc machines, Q. What are the Constr...

Q. What are the Constructional Features of DC Machines? Adc generator ormotormay have asmany as four fieldwindings, depending on the type and size of the machine and the kind o

500Mhz Collpitts Oscillator, How to design an Oscillator Circuit (500 MHz r...

How to design an Oscillator Circuit (500 MHz range) with no Op amps?

Ac, power factor improvement

power factor improvement

What is 16-bit isa, What is 16-bit ISA? Compare it with 8-bit ISA bus. ...

What is 16-bit ISA? Compare it with 8-bit ISA bus. The only difference among the 8 and 16-bit ISA bus is that other connector is attached behind the 8-bit connector. This 16-bi

What is the colour of the light emitted from the led, Question: a) Des...

Question: a) Describe five advantages of LED lighting over conventional incandescent lighting. b) State two impairments that reduces the radiant flux of a surface-emitting

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