Transformers are said to be connected in parallel operation when their primary connected to a common supply and secondary connected to a common load. The function of the transformer is to deliver power to the locality, city. But in some cases, a…
SF6 circuit breaker uses sulfur hexafluoride gas as an arc quenching medium. SF6 gas is used because it has high dielectric strength which acts as a good arc-quenching medium. SF6 is an electro-negative gas and has a high capacity to…
Reading Induction Motor Nameplate sometimes very difficult and challenging because the nameplates Often get dirty, painted, and rusted as they get old. So reading motor information becomes frustrating. You will need motor information for installation of VFD, starter design, power…
The transformer is the main device of the power system and its reliability is more important. Hence protection must be provided to the transformer. Buchholz relay is used to provide protection to the transformer against fault that occurs inside the…
The procedure of connecting an alternator to the infinite power grid or with a common bus to which the number of other generators are already connected in parallel is known as synchronizing of the alternator. Here we are going to…
Electrostatic Precipitator also known as ESP is the leading and most effective technology used for removing solid dust particles from industrial flue gases. The electrostatic Precipitator consists of a large steel chamber and inside the chamber, an electrode system is…
Differential protection is used to protect the transformer and generator against internal fault but for larger generators, additional protection is provided called Restricted earth fault protection. also known as REF protection. When the neutral of the transformer or generator is…
Corona effect (also known as Corona Discharge) is nothing but the ionization of air around the power conductor. The air around the power conductor has free electrons due to radioactivity and cosmic rays. As the potential between conductors increases potential gradient…
This bridge was first introduced by Wheatstone for measuring the value of unknown resistance. Wheatstone bridge circuit consists of four resistors, two with known resistances P & Q and one known variable resistance R, and one unknown resistor X whose value…
An induction generator is also called an asynchronous generator. An induction machine can work as a generator. For working as a generator initially, the three-phase induction motor is started as a motor. During motoring operation, it draws reactive volt-amperes from…