Electrical Archives - Page 2 of 2

Excitation Voltage – Definition, Types & Working

November 17, 2018May 8, 2018 by Amit Abhishek

Excitation / Excitation voltage or more precisely excitation system of a generator ( A.C ) is one of the leading sphere of doubts and questions asked in interviews. While these big machineries work on the Faraday’s law of electromagnetic induction. They need some source of energy not just to produce magnetic field but to control … Read more

PMMC Instrument; Construction, Working and Application

May 19, 2020March 16, 2018 by Amit Abhishek

PMMC stands for ‘Permanent magnet moving coil’. It is one of the simple and most used instruments on board with sophisticated names. They are used on board to assist in regular maintenance of electrical equipment or when precise measurements are required. Apart from PMMC and permanent magnet moving coil; they are also known as D’alvanometer … Read more