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

Determine the magnitude of the current, Determine the magnitude of the curr...

Determine the magnitude of the current: For the circuit of Figure below determine the magnitude of the voltage "drops" across each resistor R1 - R7. Determine the magnitude

Draw timing diagram of synchronous counter, Q. Consider the synchronous cou...

Q. Consider the synchronous counter shown in Figure of the text. (a) Draw its timing diagram. (b) Show the implementation of the same synchronous counter using D flip-flops.

Extrinsic material, Extrinsic Material: THE CHARACTERISTICS OF SEMI C...

Extrinsic Material: THE CHARACTERISTICS OF SEMI CONDUCTOR material can be alter significant bin addition of certain impurity atoms into the relatively pure se conductor mater

Describe what is rim and sim instructions, RIM is Read Interrupt Mask. Used...

RIM is Read Interrupt Mask. Used to ensure whether the interrupt is Masked or not.     SIM is Set Interrupt Mask. Used to mask the hardware interrupts.

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

explain how can you find hysteresis loss from hysteresis loop

3phase unbalanced load flow, under three phase 4 wire load unbalanced distr...

under three phase 4 wire load unbalanced distribution network how to calacualte the voltage across the load when no load resistance is specified, however the real and reactive powe

Which stack is used in 8085, LIFO (Last In First Out) stack is used in 8085...

LIFO (Last In First Out) stack is used in 8085.In this type of Stack the last kept information can be retrieved first.

Describing the steady state effect , Select the response describing the ste...

Select the response describing the steady state effect of increasing the air gap for otherwise identical devices, one operating with constant DC voltage excitation and one with con

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