Power transformers are key components in power networks. Their availability and longevity have a major impact on grid reliability and profitability.
Power Transformers are used to “transform” voltage from one level to another, usually from a higher voltage to a lower voltage. They do this by applying the principle of magnetic induction between coils to convert voltage and/or current levels. Generally the higher voltage falls in the range of 11-22-33kV whereas lower voltage falls in 250 or 433V range. The frequency remains identical before and after the transformation of the current. Power transformers can be configured as either a single-phase primary configuration or a three-phase configuration.
These transformers are widely used in:
|Ratings||Upto 5000 KVA|
|Applicable standards||IS, IEC, BS etc.|
|Insulating fluid||Mineral oil to specification|
|Frequency||50 Hz, 60 Hz|
|Primary voltage||11Kv/ 22 Kv/ 33 kV|
|Secondary voltage||433 v|
|Taping||On load tap changer, Off circuit tap changer|
|Impedance||In line with applicable standards|
|Vector group||DYN 11|