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

Line Protection., The Lennox to Bowmanville 500 kV circuit, spanning a dist...

The Lennox to Bowmanville 500 kV circuit, spanning a distance of about 180 km, has series (inductive) impedance j 0.0224 pu and shunt (capacitive) admittance j 2.34 pu, quoted on b

Give the principle of biasing a fet amplifier, Q. Give the principle of bia...

Q. Give the principle of biasing a FET amplifier. To correctly bias the FET, the gate needs to be negative with respect to the source. Bias is obtained in the following manner:

Explain public mode, Explain PUBLIC For large programs several small mo...

Explain PUBLIC For large programs several small modules are linked together. In order that the modules link together correctly any variable name or label referred to in other m

Signals, Using the audiorecorder() function in MATLAB, make a recording of ...

Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth. Quantize th

Determine the flux densities, In the magnetic circuit shown in Figure (a) t...

In the magnetic circuit shown in Figure (a) the coil of 500 turns carries a current of 4 A. The air-gap lengths are g 1 = g 2 = 0.25 cm and g 3 = 0.4 cm. The cross-sectional are

What is segmentation, What is segmentation? Segment memory addressing d...

What is segmentation? Segment memory addressing divides the memory in several segments. All of these segments can be seen as a linear memory space. All of these segments are ad

Design three-bit counter using t flip-flops, (a) A universal shift regist...

(a) A universal shift register can shift in both the left-to-right and right-to-left directions, and it has parallel-load capability. Draw a circuit for such a shift register.

Working of harmonic distortion analyzer, Q. Explain with the help of a bloc...

Q. Explain with the help of a block diagram the working of harmonic distortion analyzer. OR Write short note on Harmonic distortion analyzer. Sol. Several methods h

Explain synchronisation and parallel operation, Explain Synchronisation and...

Explain Synchronisation and Parallel Operation Generation, transmission and distribution of electric power have to be conducted in an efficient and reliable way at a reasonable

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