Electrical Tips, News & DIY Guides
The Basics category is the foundation of electrical engineering. This section explains basic electrical concepts in simple and clear language, such as voltage, current, resistance, electrical laws, circuit theory, illumination, and fundamental topics related to physics. This category helps ITI, Diploma, and B.Tech students build a strong base in electrical engineering, making it easier to understand later subjects like Power Systems, Machines, and Electronics.
What are Measuring Instruments? Measuring instruments are the tools that help us see and understand what’s happening inside an electric circuit. They show us things we can’t see with our eyes – like how much current is flowing or how much voltage is present. Now let’s understand their types. Types of Measuring Instruments There are … Read more
Compensating Winding When a motor or generator is working, the current inside the armature (the rotating part) keeps changing, especially when the load changes suddenly or becomes too heavy. These changes in current create something called a cross magnetizing effect, which means the magnetic field gets pushed to one side. Now imagine this — every … Read more
Introduction Now, when the supply is given to the main winding, at that time magnetic field is produced. This magnetic field produces the magnetic flux. Similarly, when the current flows through the armature conductor, the armature produces its own flux. Now, the interaction of the armature flux with the main flux produces a certain reaction … Read more
Commutation in dc machine Let’s imagine the heart of a DC generator — the armature — is always spinning. As it spins, the current in its wires keeps changing direction. That means it actually creates alternating current (AC), not direct current (DC) at first. But we call it a DC generator — why? That’s because … Read more
DC Shunt Generator A DC Shunt Generator is a special type of DC generator that is commonly used because it works on its own without needing any outside power to get started. It gives a stable voltage, whether you’re using it a little or a lot. Let’s understand characteristics of dc shunt generator how it … Read more
Types of Armature Winding When we talk about armature winding in electric machines (like motors or generators), we’re simply talking about how the wires are arranged inside the machine to carry current. These wires connect at a part called the commutator. Now, depending on how these wires are connected at the ends, armature winding is … Read more
A DC machine is an electromechanical device that converts electrical energy into mechanical energy, or vice versa, using direct current (DC). It works on the fundamental principle of electromagnetic induction, which was discovered by Michael Faraday. DC machines are classified into two main types: DC generators and DC motors. A DC generator converts mechanical energy … Read more
What is Transmission Line? A transmission line is like a big electric road. Just like trucks carry goods from one city to another, a transmission line carries electricity from power stations to our homes, schools, offices, and factories. Simple Example: Imagine a water pipe. Water flows through the pipe and reaches your tap. In the … Read more
Electrical Power Distribution System The distribution system is the part of the electric supply network that delivers electricity from the distribution substation to the end consumers (homes, shops, farms, etc.). An electrical distribution system is a network of equipment that carries electricity from high-voltage transmission lines to homes, businesses, and other users. It acts as … Read more
Measurement of Power in Three-Phase Systems A wattmeter is a device used to measure the average or real power in AC circuits. While the method for measuring single-phase power is discussed in Chapter 1, this section focuses on the measurement of three-phase power. There are three main methods used for measuring the active (real) power … Read more