Define shunt capacitors and reactors, Electrical Engineering

Assignment Help:

Define Shunt Capacitors and Reactors

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 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 the specified value of the voltage.

It has been shown that by using shunt VAr compensators to control the voltage at key points along a transmission line, it is possible to increase the power transmission capability of the line. When using shunt capacitors, it is important to note that at high loads, the voltage falls and consequently the VArs produced by the capacitors falls as the square of the voltage (Q=V2/Xc). That is, when they are most needed, their effectiveness falls. Also, on light loads when the voltage is high the capacitor output is large and can produce voltage rises.


Related Discussions:- Define shunt capacitors and reactors

Signals in noise, Signals in Noise: Let us now consider a weak informat...

Signals in Noise: Let us now consider a weak information signal that is to be amplified by a noisy amplifier. The signal-to-noise ratio (SNR), usually expressed in decibels, be

Digital ttl circuit, Execution of Digital Logic Circuits A safety circ...

Execution of Digital Logic Circuits A safety circuit is employed on a lathe to prevent the motor turning if it is not safe to operate. A series of 2 switches are used to check

Feedback amplifier, explain working pricipal of nagative resistance oscilla...

explain working pricipal of nagative resistance oscillator

Single-axis autopilot control system of an aircraft, Q. Single-axis autopil...

Q. Single-axis autopilot control system of an aircraft? Figure (a) shows the block diagram of a simplified single-axis (pitch, yaw, or roll) autopilot control systemwith digita

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

Find maximum probable percentage error in the measurement, Q. A current of ...

Q. A current of 65 A is measured with an analog ammeter having a probable error of ± 0.5% of full scale of 100 A. Find the maximum probable percentage error in the measurement.

#title., what is plane transmission grating/?

what is plane transmission grating/?

Security alarm system, In this Project you will simulate a Security Alarm s...

In this Project you will simulate a Security Alarm system using the Quick flash board. A switch is placed as shown in the figure below. The main goal of this project is: Task 1:

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