Electrical Parameters

Normally, two kinds of overvoltage may appear in an electrical system. Power Frequency Withstanding Voltage One type is power-frequency overvoltage. In a three-phase system, a fault in one phase can increase the voltage in the healthy phases to an elevated value. This condition can continue until the clearance of the fault. Also, due to sudden … Read more

Before explaining inductance, let us recall what an inductor is. An inductor is a passive device that opposes sudden change in current through it by inducing an emf across it. Actually, an inductor is a coil of conducting wire. When current flows through an inductor, it produces a magnetic flux around it. Hence, this flux … Read more

An inductor is any type of coil of a conductive wire. We all know from our childhood that when a current flows through a coil, it becomes a magnet. It means that whenever a current flows through the coil, it produces a magnetic flux surrounding it. Obviously, if we change the amplitude of the current, … Read more

Kirchhoff’s Current Law and Kirchhoff’s Voltage Law are two very important laws for solving electrical circuit networks. We use these laws mostly to solve network problems. Kirchhoff’s Current Law Kirchhoff’s Current Law (KCL) says that the total current entering a node equals the total current leaving the node. Obviously, a node is a point where … Read more

In our previous article, we discussed how an inductor behaves in a DC circuit. In this article, we shall discuss how an inductor behaves in an AC circuit. Suppose there is an inductor. We have connected this inductor across an alternating electrical source. The alternating source generates a pure sinusoidal signal. Now, we shall consider … Read more

An ideal current source is an imaginary source. We use it only for circuit analysis. It is a theoretical concept. An ideal current source supplies a constant current regardless of the load condition. The current does not change with the change in the connected circuit. No matter what circuit we connect, the source always delivers … Read more

In this article, we will discuss the very basic concepts of ideal and practical voltage sources. Voltage Source First, we will discuss the voltage source. Obviously, let us first discuss the ideal voltage source. After that, we will move to the practical voltage source. Ideal Voltage Source An ideal voltage source, as the name indicates, … Read more

Here we have explain the topic on the magnetic effect of current or magnetic effect due to current. When an electric current flows through a conductor, it produces a magnetic field around it. Obviously, this phenomenon is the magnetic effect of electric current. What is a magnetic field? Actually, a magnetic field is the region … Read more

What is Insulation Resistance? Insulation resistance measures how well an insulating material stops leakage current. We measure this blocking ability in Ohms (Ω). Furthermore, good insulation has very high resistance. In contrast, poor insulation allows current to leak. Obviously, this leakage can cause electric shocks, equipment damage, and fire hazards. Basic Formula of Insulation Resistance … Read more

A resistor is one of the fundamental components in circuits. It limits current flow or divides voltages in the circuit. Although all types of resistors serve the same basic function, different manufacturing methods and materials create distinctions among them. Each type has its unique characteristics suited for specific applications. Differnt Types of Resistors as Follows … Read more