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 workinf of colpitts oscillator, Q. Explain workinf of colpitts osci...

Q. Explain workinf of colpitts oscillator? When the collector supply voltage V cc is switched on, the capacitors C1 and Cz are charged. These capacitors C1 and Cz discharge thr

Compute the worst voltage regulation, Q. The following data were obtained o...

Q. The following data were obtained on a 25- kVA, 2400:240-V, 60-Hz, single-phase distribution transformer: • Open-circuit test with meters on LV side: 240 V, 3.2 A, 165 W •

Explain common base configuration, Q. Explain common base configuration? ...

Q. Explain common base configuration? Common-base transistor amplifiers are so-called because the input and output voltage points share the base lead of the transistor in commo

Define sampling frequency, Define Sampling Frequency? Since real analog...

Define Sampling Frequency? Since real analog signals consist of several frequencies, spectrum of the input signals should be limited to make sure that no signal energy exists a

Determine the input resistance between terminals of circuit, Q. Consider Fi...

Q. Consider Figure of the weighted differencing amplifier. Let R 3 = R 1 and R 4 = R 2 . Determine the input resistance between terminals a and b of the circuit.

Show the procedure of octal to decimal conversion, Q. Show the procedure of...

Q. Show the procedure of Octal to Decimal Conversion? To convert from Octal to Decimal, multiply the value in every position by its Octal weight and add each value. Using the v

Example register to memory , Example  Register  to Memory Example ...

Example  Register  to Memory Example : Write assembly language  statement  to copy 25H  stored  in register D to memory location 3052H. Solution :   Assuming  3050H is s

Explain about adaptive control system, Q. Explain about Adaptive Control Sy...

Q. Explain about Adaptive Control System? Another type of control system that makes use of the computer is known as adaptive control, which is functionally represented in Figur

Explain multimedia extensions technology, Explain MMX Technology. Mult...

Explain MMX Technology. Multimedia extensions technology adds 57 newly instructions to the instruction set of the Pentium - 4 microprocessors. The Multimedia extensions techno

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