A complete Electrical Engineering portal
In the world of industrial automation, Programmable logic controllers (PLC) and Distributed Control Systems (DCS) are used to control or automate a process or a machine. They monitor the field signals and operator inputs and make decisions based on how they are programmed. Here you can understand the difference between PLC and DCS. What is … Read more
Electromagnetic induction occurs whenever there is a relative motion between a magnetic field and a coil. The electromagnetic force acts on the charged particles inside the coil, forcing them in one direction along the coil. If ends of the coil are closed, it results in a current flow. This current is known as induced current. … Read more
Electromagnetic induction is a phenomenon by which electromotive force is produced across a conductor placed in a varying magnetic field. It was discovered by Michael Faraday in 1831 after performing several experiments for over 10 years in his laboratory in London. The discovery of electromagnetic induction led to the invention of electric transformers, motors, and … Read more
Michael Faraday discovered the phenomenon of electromagnetic induction in 1831 which was a major breakthrough and led to the invention of electric motor and generator. Faraday’s law of electromagnetic induction describes two phenomena: interaction between a conductor and a magnetic field, and the EMF generated by the magnetic field, which is widely known as Faraday’s … Read more
Heinrich Friedrich Emil Lenz was a Russian physicist, working at the University of St. Petersburg, Russia. He formulated Lenz’s law in 1834. This law predicts the direction of the current and the induced voltage in a coil held in a magnetic field. Lenz’s law – Statement The direction of an induced e.m.f. is always such … Read more
The terms, motor rated current, full load current and nominal current, are very likely to confuse electrical engineers. Even though these terms are quite similar, there are slightly different from each other. Here is the clear definition of each one of them. Definitions Motor rated current The current drawn by a motor at its full … Read more
Motor rated current also known as full load amperes (FLA) of a motor is the maximum current the motor windings are designed to carry. Here is a simple motor rated current calculator. Motor data input Motor Type Three PhaseSingle Phase Enter the motor rated voltage V Enter the motor rated power HPkW Enter the motor … Read more
The speed of an induction motor is always lesser than its synchronous speed. The difference between the actual speed and the synchronous speed of a motor is known as slip. Here is a simple induction motor slip calculator. If you want to calculate the synchronous speed, you can use the synchronous speed calculator tool. Measured … Read more
An electric motor is an energy transformation machinery. It transforms electrical energy into mechanical energy. In other consumes electrical energy and delivers mechanical energy in the form of rotations. For example, an electric fan consists of a motor that draws electric energy from the mains and delivers kinetic energy (mechanical energy) in the form of … Read more
An alternator or a synchronous generator is a device used to convert mechanical energy to Alternating current electric current. The EMF equation of an alternator is a mathematical expression to calculate the effective value of EMF induced in each phase of an alternator or a synchronous generator. According to Faraday’s law of electromagnetic induction, the … Read more
