Define series var compensation, Electrical Engineering

Assignment Help:

Define Series VAr Compensation?

For very long transmission lines, the inductive reactance of the line becomes so high that not much power can be transmitted through the line, see equation.

P = (Vs VR)/ X sin δ

Therefore, capacitors are connected in series with the line conductors and are used to reduce the inductive reactance and hence increase the power transmission capability of the line and reduce the voltage drop. Depending on the compensation level (k), the transmitted power given by equation (20) is modified to:

P = (VS VR) / X (1-K) sin δ

Where the compensation level  (k)  is  Xcapacitor/ Xline

A major drawback is that short-circuit currents cause excessive voltages across the capacitors and special protective devices such as spark gaps are required to protect them. In addition, series capacitors increase the system fault level.


Related Discussions:- Define series var compensation

Ideal or perfect transformer, a) A 230 V/25V, 50 HZ transformer with a rate...

a) A 230 V/25V, 50 HZ transformer with a rated primary current of 1,2 Amps is used to supply a number of 25 V, 30 Watt halogen light bulbs. Assuming an ideal transformer and tha

Which matels alloy make bronze, Bronze is an alloy of (A) Copper and T...

Bronze is an alloy of (A) Copper and Tin.               (B) Copper and Steel. (C) Copper and Mercury.      (D) Copper and Aluminium. Ans: Bronze is an alloy of Cop

Newton raphson , hi can you help with newton raphson?

hi can you help with newton raphson?

Determine the antennas power gain and beamwidth, Q. A paraboloidal antenna ...

Q. A paraboloidal antenna has an aperture ef?ciency of 0.6 and a diameter D = 100λ at 6 GHz. Illumination by the feed is such that the beamwidths of the principal-plane secondary p

Simplified operation on transistor, Simplified operation: Figu...

Simplified operation: Figure: Simple circuit to show the labels of a bipolar transistor. The essential value of a transistor comes from its capability to make use

Astable multivibrator circuit, how does this circuit work and what are th e...

how does this circuit work and what are th electrical components in it do?

Starting methods for polyphase induction motors, Starting Methods for Polyp...

Starting Methods for Polyphase Induction Motors When high starting torques are required, a wound-rotor induction motor, with external resistances inserted in its rotor circuits

BASIC ELECTRICLE, kindly tell me which text book is usefull forlearn the ba...

kindly tell me which text book is usefull forlearn the basic electricle.

Compute the load power factor, Considering Figure, let balanced positive-se...

Considering Figure, let balanced positive-sequence, three-phase voltages with ¯V AB = 100√3 0° V (rms) be applied to terminals A, B, and C. The three-phase wye-connected balanced

What is meant by biasing transistor, Q. What is meant by biasing transistor...

Q. What is meant by biasing transistor? The purpose of dc biasing of transistor is to obtain a certain dc collector current at a certain dc collector voltage. These values of c

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