Question

1) In a transformer core, consider there are two cases: Case 1: primary winding and the secondary winding is separated by a large distance Case 2: primary winding and the secondary is separated by a very small distance In which of the above two cases the leakage flux will be lower? and why? (justify with reason) 2M

Answer 1

In a transformer core, consider there are two calls: Cafl I: and the secondary winding is Primasy winding separated by a large distance. cases. Prinary winding and the secondasy winding a are separated by a small distance. In which of the above two cases the leakage flux will be lower ? and why ? In case a leakage flex is less In case q leakage flux is less Explanation 3 . . In transformer, bor primary and secondary cussents produce flux. to the flux a which links both the windings is the useful flux, and is called mutual flux. However, primary current would produce some flux Ols, which would not link the secondary wirding, similarly, secondary winding would produce

Og that would not to the flux such of one winding is called link the pirasy winding. , and Q2 which links only leakage flux, so as distance between Primary and secondary winding increatly mutual com useful flux decreases and leakage flux increases. Rerefore in case a less leakage flux available since primary and secondasy windings are separated by small distance In case a leakage there is less. :