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

Advantages of bjt over mosfet, Advantages of BJT over MOSFET: BJTs have...

Advantages of BJT over MOSFET: BJTs have some benefits over MOSFETs for at least two digital applications. Very first, in high speed switching, they do not comprises the "large

What are shift registers - sequential logic circuit, What are Shift Registe...

What are Shift Registers - Sequential Logic Circuit? The Shift registers are a type of sequential logic circuit that mainly for storage of digital data and they are a group of

Dc machines, commutator in d.c machine acts as... what????

commutator in d.c machine acts as... what????

Determine the stator current and power factor, A ¼-hp, 230-V, 60-Hz, four-p...

A ¼-hp, 230-V, 60-Hz, four-pole, single-phase inductionmotor has the following parameters and losses: R 1 = 10 , X l1 = X l2 = 12.5 ,R 2 = 11.5 , and X m = 250 . The core

Diploma in electrical engineering, After I complete my diploma how I get a ...

After I complete my diploma how I get a job in goverment

Higher order address bus - pins and signals , Higher order  Address Bus ...

Higher order  Address Bus The 8085 microprocessor  has 8 pins  dedicated to higher order address A15 - A8. These pins  are used to connect  higher  order address bus. These  p

Phase lead controller design and digital implementation, The arm of a hydra...

The arm of a hydraulic robot is controlled as shown in the block diagram below: The arm dynamics are represented by: Dynamic specification for the arm requires:

Explain analog communication system, Q. Explain Analog communication system...

Q. Explain Analog communication system? Analog signals in an analog communication system can be transmitted directly via carrier modulation over the communication channel and d

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