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.
Nuclear Power Generation refers to the generation of electric power from nuclear energy. The nuclear power station is the generating station in which nuclear energy is converted into electrical energy. In a nuclear power station, heavy elements such as Uranium (U235) or Thorium (Th232) are subjected to the nuclear fission process. Nuclear fission refers to … Read more
Solar Power Generation refers to the production of electric power by harnessing solar energy. The amount of sunlight that strikes the earth’s surface in 90 minutes is enough to handle the entire world’s energy consumption for a full year. There are two primary methods by which Solar power can be utilized. Solar technologies that convert … Read more
A wind turbine is a device that converts the kinetic energy of wind into electrical energy. Wind turbines are manufactured in a wide range of sizes. Wind turbines are desgined in either horizontal or vertical axes. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity. The … Read more
Voltage is the amount of specific potential energy available between two points in an electric circuit. Potential energy is energy that is potentially available to do work. Looking at this from a classical physics perspective, potential energy is what we accumulate when we lift a weight above ground level, or when we compress a spring: … Read more
Transformer MCQs Part 11 A 40 Ω resistive load is to be impedance matched by transformer to a source with internal resistance of 4000 Ω . If open circuit voltage of source is 60 V. Then the secondary power in watts will be A 40 Ω is to be impedance matched by transformer to a … Read more
Transformer MCQs Part 10 The temperature rise of transformer is directly proportional to The temperature rise of transformer is directly proportional to: Apparent power Leakage reactance Reactive power All of these None of these Correct answer: 1. Apparent power Explanation: Two types of losses occurring in a transformer are: Iron losses: Depend upon voltage Copper … Read more
A direction overcurrent protection relay is a type of relay that is able to discriminate between current in one direction versus current in the other direction. It is used for power system protection where alongside magnitude, the direction of line current is also important. In this article you’ll learn working of directional overcurrent protection relay. … Read more
One of the very simple method for controlling the speed and torque characteristics of a wound-field DC motor is by varying current through the field winding. In this article, you’ll learn the DC motor speed control using PWM from a variable-speed drive or VSD. The solution employs a electronic power control circuit very rapidly switch … Read more
In this article you’ll learn DC motor speed control by varying current through field winding. A very simple method for controlling the speed and torque characteristics of a wound-field (nonpermanent magnet) DC motor is to control the amount of current through the field winding. Decreasing the field control resistor’s resistance allows more current through the … Read more
