Define shunt var compensation, Electrical Engineering

Assignment Help:

Define Shunt VAr Compensation?

Shunt capacitors absorb leading VArs (i.e. they are used to supply lagging VArs) whereas reactors are used to absorbs lagging VArs. Capacitors and reactors can be either directly connected to the busbar (fixed) or connected through switches (mechanical or thyristors). In the latter, the number of elements connected to the system may be controlled in order to supply the required VAr demand to maintain a specified value of the voltage.

Equation shows that the voltage at the mid-point of a transmission line can be maintained constant by using a dynamic shunt VAr compensator connected at this point.

ΔV / VR = 1/SCL [(R/X) P + (Q-QC)]

This means that the line is sectioned into two "independent" equal halves. Thus, assuming that VS = VR = Vm (mid-point voltage) = V, the power equation for each half, using equation

P = ((VS VR) /X) sin δ

may be written as:

1808_Define Shunt VAr Compensation.png


Related Discussions:- Define shunt var compensation

Parts of triangle, The base of isosceles triangle and the altitude drawn fr...

The base of isosceles triangle and the altitude drawn from one of the congruent sides are equal to 18 cm and 15 cm, respectively. Find the lengths of the sides of the triangle.

Compute number of electrons and find their average velocity, Q. A wire with...

Q. A wire with n = 10 30 electrons/m 3 has an area of cross section A = 1mm 2 and carries a current i = 50 mA. Compute the number of electrons that pass a given point in 1 s, an

Calculate the maximum power that transmitted to the load, Calculate the Max...

Calculate the Maximum Power That Transmitted To the Load? A 25 MW load at the 33 kV receiving-end busbar of a short 3-phase transmission line has a power factor of 0.8 lagging.

What do you mean by inaccessible area coverage, Q. What do you mean by Inac...

Q. What do you mean by Inaccessible area coverage? Marshy lands, hilly areas, etc where ground surveys could be very difficult, remote sensing technique can provide reliable an

First generation 1946- 1654 - history of computer, First Generation (1946- ...

First Generation (1946- 1654) In the  first  generation computer  vacuum tubes and valves were used. These computer were very large in size ( thousands of square feet on the fl

What do you mean by digital building blocks, Q. What do you mean by Digital...

Q. What do you mean by Digital Building Blocks? Whereas a continuous change from one value to another is the essential characteristic of an analog signal and continuous-state (

Determine the current gain, A JFET for which V A = 80 V, V P = 4 V, and I...

A JFET for which V A = 80 V, V P = 4 V, and I DSS = 10 mA has a quiescent drain current of 3 mA when used as a common-source amplifier for which R D = R SS = 1k and R L = 3k

Plc, in industry

in industry

Combinational logic circuit design, Design a circuit to enable a chemical a...

Design a circuit to enable a chemical additive to be introduced into the fluid through another inlet only when the temperature is not too cold or too hot and the fluid is above the

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