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

Self-excited generator, The magnetic field can be supplied by coils supplie...

The magnetic field can be supplied by coils supplied from the output of the generator itself. This is known as self-excitation.There are three ways that the field coils can be conn

Push instruction - stack operations , PUSH Instruction This  instructi...

PUSH Instruction This  instruction copies  the contents  of the specified  register  pair into the  stack. The  contents  of stack  pointer register  are decremented by two. Th

New asic design flow, There is a requirement to propose a new ASIC design f...

There is a requirement to propose a new ASIC design flow within your company, from VHDL design capture through to GDSII tape out.  It is very important that the flow includes all t

Describe the term pure hardware delay, Question: (a) Describe the term...

Question: (a) Describe the term "Pure Hardware Delay" in microcontroller design. (b) Name the three types of subroutines which are placed at the interrupt location in ROM a

DC Generator, What is Commutator? Explain in brief about the Commutator act...

What is Commutator? Explain in brief about the Commutator action in dc generator.

Draw the equivalent magnetic circuit diagram, 1) Consider the magnetic circ...

1) Consider the magnetic circuit shown in the figure. Steady currents flow in the windings of N 1 and N 2 turns on the outside legs of the ferromagnetic core. The core has a

Threshold switching voltage, Analogue Threshold switching a) Include a...

Analogue Threshold switching a) Include a variable potential divider to the schematic diagram to control the transistor base voltage b) Include the potential divider compon

Zener Diode, A Zener diode has the specifications VZ=6.8V and PDmax.=500mW....

A Zener diode has the specifications VZ=6.8V and PDmax.=500mW. Assume RZ=0. (a) Find the maximum allowable current iZ when the Zener diode is acting as a regulator. (b) If a sing

What do you mean by macro, What do you mean by Macro? MACRO : A seque...

What do you mean by Macro? MACRO : A sequence of instructions to that a name is assigned is termed as macro. Macros and subroutines are same. Macros are utilized for short se

Pn junction, the depletion layer in the pn junction is caused by

the depletion layer in the pn junction is caused by

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