For large power transformers, self oil cooled type or air blast type which of the
following values of current density may be used ?
(a) 1.0 to 1.2 A/mm2
(b) 1.5 to 2.0 A/mm2
(c) 2.2 to 3.2 A/mm2
(d) 3.2 to 4.2 A/mm2
following values of current density may be used ?
(a) 1.0 to 1.2 A/mm2
(b) 1.5 to 2.0 A/mm2
(c) 2.2 to 3.2 A/mm2
(d) 3.2 to 4.2 A/mm2