Please refer Cl. 18.7.4.1 of Electr

[aishu]

Please refer Cl. 18.7.4.1 of Electrical Engineers Reference Book by MG Say and M A Laughton which mention power transformer stepping down from 132kV have output up to 300MVA. Anyway I got the data I wanted, Thanks

 

[prc]

Maximum out put rating of transformer is decided by the breaker capacity on LV side. As per my understanding with today's breaker technology, the maximum transformer capacity with about 18 % transformer impedance is 180 MVA at 33kV,whether 400/33 or 220/33 or 132/33 kV. If LV side is 11kv ,rating will be still lower.