Generating station transformers

Primary substation transformers

Refineries and hazardous location

Secondary substation transformers

Primary winding

Secondary winding

Tap charger

Core

Observes heat

Indicate oil level

Prevents the moisture entry

Reduces tank pressure

To minimise the hysteresis losses

To minimise the eddy current loss

To minimise the copper loss

To minimise the friction loss

To avoid leakage of flux

To reduce the tank size

For effective cooling

To reduce copper loss