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

Survey methods and analysis - power supply, Survey Methods and Analysis - P...

Survey Methods and Analysis - Power Supply There are two major methods of gathering information from customers: qualitative and quantitative.  Quantitative Rese

Data bus - bus organisation , Data bus The data  bus is the  group of 8...

Data bus The data  bus is the  group of 8 bit   used  to carry data. There  line are  bidirectional data can flow  in both  directions i e form  microprocessor to  peripherals

Define time-shifting precedes time-reversing and vice versa, Define Time-Sh...

Define Time-Shifting Precedes Time-Reversing and Vice Versa Signal x[n] is time-shifted by m samples (delay in time) giving x[n - m]. This signal is then reversed at n = 0 givi

What are the types of write operations used in 8253, What are the different...

What are the different types of write operations used in 8253? There are two types of write operations in 8253 (1) Writing a control word register (2) Writing a count val

Assignment, design a half wave bridge rectifier to perform the function ind...

design a half wave bridge rectifier to perform the function indicated

Calculate the monthly electric bill, Calculate the monthly electric bill fo...

Calculate the monthly electric bill for TESTU.  Metering is as follows: B 00,000 kWHr C 00,000   kVARHr D 0,000        kW  peak demand Facilities Charge = $500

Controls and system, transfer function of Lube Oil Cooler Temperature

transfer function of Lube Oil Cooler Temperature

Zero-bias equilibrium, Zero-Bias Equilibrium In a p-n junction, with n...

Zero-Bias Equilibrium In a p-n junction, with no an external applied voltage, an equilibrium condition is arrived at in which a potential variation is formed across the juncti

Automotive industry, The worldwide automotive industry is currently witness...

The worldwide automotive industry is currently witnessing rapid innovative developments day by day. The developments encompass every aspect of the automobile such as materials, man

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