Month: July 2020

Core type and Shell type Transformer Depending upon the type of construction used, the transformers are classified mainly into two categories i.e Core type and shell type Core Type In core type construction ,the coils are wound around the two limbs of a rectangular magnetic core. Each limbs carries one half of the primary winding … Read more

Polarity Test On the primary side of a two winding transformer, one terminal is positive with respect to other one. At the same time ,one terminal of the secondary winding is positive with respect to other one. Polarity test is performed to determine the terminals having the same instantaneous polarity. The relative polarities of the … Read more