Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is meant byElectronic Ballast?An electronic ballast, also referred to as an electrical ballast, is a component of equipment that controls the starting voltage & currents of the lighting fixtures.This is accomplished by the use of the electrical gas discharge technique. To start the gas discharge method in fluorescent lamps, an electronic ballast converts the power frequency to a very high frequency by managing the voltage across the bulb and current through the lamp.Block Diagram of Ele

What is Electric Current?Electric current is defined as a stream of charged particles—such as electrons or ions—moving through an electrical conductor or space. It is the flow rate of electric charge through a conducting medium with respect to time. Electric current is expressed mathematically (e.g. in formulas) using the symbol “I” or “i”. The unit for current is is ampere or amp. This is represented by A.Mathematically, the flow rate of charge with respect to time can be expressed as,In other

What is RMS Voltage?The word RMS stands for Root Mean Square. An RMS voltage is defined as the square root of the mean square of instantaneous values of the voltage signal. The RMS is also known as the quadratic mean. RMS voltage can also be defined for a continuously varying voltage in terms of an integral of the squares of the instantaneous values during a cycle.The RMS value is most important in the case of an AC signal. Because the instantaneous value of an AC signal varies continuously with

What is Ohm’s Law?Ohm’s law states that the electrical current flowing through any conductor is directly proportional to the potential difference (voltage) between its ends, assuming the physical conditions of the conductor do not change.In other words, the ratio of potential difference between any two points of a conductor to the current flowing between them is constant, provided the physical conditions (e.g., temperature etc.) do not change.Mathematically, Ohm’s law can be expressed as,Introdu

What is a Grounding Conductor?A grounding conductor is defined as a wire or conductor intentionally connected to the earth. The grounding conductor is commonly known as a “ground conductor” or “case ground.”In most cases, the ground wire is connected with a case or outer part of the electrical box, appliances, or tools. Hence, the grounding conductor is also known as case ground.The grounding conductor is used for safety purposes. In normal conditions, the grounding wire does not carry current.U

Formulas For Electrical EngineeringElectrical engineering is a branch that deals with the study, design, and implementation of various electrical equipment used in day-to-day life.It covers a wide range of topics like; power systems, electrical machines, power electronics, computer science, signal processing, telecommunication, control system, artificial intelligence, and many more.This branch of engineering is full of formulas and concepts (laws) used in many aspects like solving circuits and i

A sinusoidal wave signal is a type of continuous wave that has a smooth and repetitive oscillation. It is based on the sine or cosine trigonometric function, which describes the curve of the wave. Sinusoidal wave signals are common in mathematics, physics, engineering, signal processing, and many other fields. In this article, we will explain what a sinusoidal wave signal is, how it is characterized, and why it is important.What is a Signal?Before we define a sinusoidal wave signal, let us first

Aspace chargeis defined as a region of space where electric charges accumulate, either in free space or in a dielectric material. The electric charges can be either positive or negative, and they can be either mobile or immobile. The space charge can affect the electric field, the electric potential, and the current flow in the region.Examples of Space ChargeSpace charge can occur in various situations, such as: Semiconductor junctions: When a p-type semiconductor (which has excess holes) is bro

Automatic Voltage Regulator (AVR)An automatic voltage regulator controls the supply voltage. The voltage is stabilized after being converted. The variation in load on the supply system is the primary cause of the voltage fluctuation. The equipment in the power system is harmed by voltage variations.Installing voltage control instruments in various places, such as close to Transformers, Generators, Feeders, etc.,will help to regulate voltage variance.The voltage regulator is available at multiple

Phase, neutral, and earth are the three connections that make up an electrical system. For electrical energy to flow securely through the load, each wire connection is important.In simple terms, A phase wire is utilized to carry the primary load current for the load A neutral wire is used for carrying the extremely small or even negligible return current back to the source, and An earthing wire is utilized for carrying the leakage current to the ground.Specifically, a typical problem with the ne