Effect of Harmonics on Power Factor
This article describes the effect of harmonics on the power factor. The nonlinear loads cause harmonics in the electrical power system and adversely affect the … Read more
Power Quality
Total Harmonic Distortion(THD) & Its Measurement
Total harmonic distortion (THD) shows how much of a voltage or current distortion is due to harmonics in the signal. If the sinusoidal voltage is … Read more
Power Quality Terms and Definitions
In this article we will discuss the power quality terms. The power quality is of utmost importance for reliable operation of the electrical equipment. It … Read more
Types of Voltage Surge
We can define voltage surge as the sudden increase in voltage above the rated supply voltage. It is desirable that the electrical equipment must receive … Read more
Voltage Sags & Its Causes
Voltage sags are short duration reductions in system RMS voltage magnitude between 10 % to 90%, and duration lasting typically from a few cycles to … Read more
Harmonic Problems and UPS Solution for Computer Installation
Computers installations small or big are susceptible to harmonics in the power lines. The advance designs of computer and peripherals make them virtually failure proof. … Read more
Harmonics Filters – Cost and Effectiveness
The main characteristic of an electrical system is its waveform which, under all operating conditions and load conditions, must always remain a pure sine wave. … Read more
Working Principle of Active Harmonic Filter
The PWM INVERTER technology is the basic building block of an Active Harmonic Filter. Active filters are new generation harmonic filters which use modern technologies … Read more
Role of Test & Measurement in Harmonic Studies
What are Harmonic Studies? Power electronics is being used popularly in industries due to ease of operation and maintenance. It is also possible to achieve … Read more
What is the Required Capacitor KVAR for 50 HP Motor?
The motor draws inductive current when a 50 HP induction motor is run by feeding a three-phase AC supply. At the no-load running of the … Read more