Technical articles on Electronics and Electrical Engineering topics focused on Basics of EE, Electronic components, power systems and equipment used for generation, transmission, operation, and controls of electricity.
For AC circuit measurements and calculations things can get very complicated due to the complex nature of alternating current in circuits with inductance and capacitance. However, with simple circuits (figure below) involving nothing more than an AC power source and resistance, the same laws and rules of DC apply simply and directly. In this article … Read more
An AC waveform has different features associated with it. i.e Amplitude, RMS, Peak to Peak, True-RMS, and average. In this article, you’ll learn about 5 basic properties associated with AC Waveform. Introduction The rate of alternation taken by AC can be measured by measuring the time it takes for a wave to evolve before it … Read more
Like most electrical machines, the Induction motor comprises of two major parts: The stator and the rotor. In this article you’ll learn about the basic construction of induction motor. Simple 2 Phase Induction Motor An induction motor is composed of a rotor, known as an armature, and a stator containing windings connected to a poly-phase … Read more
In Electrical Engineering the graph of a signal when plotted as a function of time is known as a waveform. In this article, you’ll learn about the basics of AC Waveform and fundamental definitions associated with AC waveforms. When an alternator produces AC voltage, the voltage switches polarity over time but does so in a … Read more
AC or Alternating current is the type of electric current that reverses its direction at regular intervals. In this article you’ll learn the fundamentals of alternating current. Introduction Most students of electricity begin their study with what is known as direct current (DC), which is electricity flowing in a constant direction, and/or possessing a voltage … Read more
The power factor is defined as the ratio of true to apparent power. The power factor is an important consideration in an AC circuit. A power factor less than 1 means that the circuits will carry more current than what would be necessary with zero reactance. The power factor correction is one of the most … Read more
Power factor is defined as ratio of true to apparent power. Power Factor is a unitless quantity Power Factor of Purely Resistive Circuit For the purely resistive circuit, the power factor is 1 (perfect), because the reactive power equals zero. Here, the power triangle would look like a horizontal line, because the opposite (reactive power) … Read more
A band-stop filter is opposite to that of the band-pass filter because it rejects frequencies within a certain bandwidth while frequencies outside the bandwidth are passed. In this post you’ll learn about Band Pass Filter. Similar topics you might want to learn: What is a filter Low pass filter High pass filter Block Diagram of … Read more
Transformers must be well designed in order to achieve acceptable power coupling, tight voltage regulation, and low exciting current distortion. Also, transformers must be designed to carry the expected values of primary and secondary winding current without any trouble. This means the winding conductors must be made of the proper gauge wire to avoid any … Read more
Induction motors present a lagging (inductive) power factor to the power line.The power factor in large fully loaded high speed motors can be as favorable as 90% for large high speed motors. At 3/4 full load the largest high speed motor power factor can be 92%. The power factor for small low speed motors can … Read more