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
Power Quality
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 50 HP induction motor is run by feeding three phase AC supply. At no load running of the motor … Read more
Difference between Harmonics and Sub-Harmonics
Harmonics is generated when the equipment draws current which is non linear to the applied voltage. The elctronic devices are the non linear devices … Read more
Interharmonics in Power System
The power electronics is being widely used nowadays to improve the system efficiency,flexibility and reliability. The semiconductor devices used in power electronics are non linear … Read more
