2018
Nov
19

Balun Transformer – Balanced vs Unbalanced Transmission Lines

4 1 balun

What is a balun? A Balun is special type of transformer that performs two functions i.e. impedance transformation and balanced to unbalanced transformation. The term balun is a contraction of “balanced to unbalanced transformer” Why do we need a balun? Baluns are

2018
Sep
21

How to Measures Core and Winding Losses of Electrical Current Transformer

core loss open circuit test using DPATT-3Bi instrument

Both short circuit and open circuit tests are conducted to measure the core and winding losses of transformers. As we know that there are mainly two major parts of transformers i.e. core and winding, which are made of two type of materials,

2017
Aug
6

What is On Load Tap Changer OLTC in Transformers

Vacuum type OLTC

A tap changer is a device fitted to power transformers for regulation of the output voltage to required levels. On-load tap-changers (OLTCs) are indispensable in regulating power transformers used in electrical energy networks and industrial applications. OLTC changer alters the turn ratios

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