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

What is a modem, Q. What is a Modem? Modems are generally used to inter...

Q. What is a Modem? Modems are generally used to interface digital circuits to transmit information on analogue channels such as telephone systems. Modem (from modulator-demodu

Illustrate bandstop filter, Q. The dual situations is shown in Figure , in ...

Q. The dual situations is shown in Figure , in which a high-pass and a low-pass filter are connected in parallel to produce a bandstop filter. With ω CLP = 10 CHP = 50, ω 0

Determine IS in the given circuit, Q. Given that V 0 = 10 V, determine IS ...

Q. Given that V 0 = 10 V, determine IS in the circuit drawn in Figure.

What is the procedure of binary subtraction, Q. What is the procedure of Bi...

Q. What is the procedure of Binary Subtraction? The Rules of Binary subtraction 0 - 0 = 0 0 - 1 = 1 , and borrow 1 from the next more significant bit 1 -

What the voltage gains in the fet amplifier, Q. What the voltage gains in t...

Q. What the voltage gains in the FET amplifier? For common source  Voltage gain=V o /V i = - µRd / Rd + rd where µ is the amplification factor,Rd the drain resistance a

Earth leakage-earthing, Earth Leakage : Earth leakage takes place when, th...

Earth Leakage : Earth leakage takes place when, through some fault in an appliance or its connections. Electric current escapes to earth i.e. the body of the appliance become 'liv

Explain the test instruction, Explain the TEST instruction. TEST: The T...

Explain the TEST instruction. TEST: The TEST instruction executes the AND operation. The difference is as the AND instruction changes the destination operand, whereas the TEST

Finance and accounting in kpi, Finance and Accounting in KPI Every bus...

Finance and Accounting in KPI Every business is completed to earn some profit and it is the underline concept. The main tasks are to manage the finances efficiently to meet th

Dual-ramp analog to digital converter, Q. Dual-ramp analog to digital conve...

Q. Dual-ramp analog to digital converter? Figure (a) shows the block diagram of a dual-ramp (dual-slope) A/D converter. After a start-of-conversion pulse, the counter is cleare

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