If a 75 MVA, 10 kV synchronous generator has Xd = 0.4 p.u,

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If a 75 MVA, 10 kV synchronous generator has X_d = 0.4 p.u, then X_d value (in p.u.) to a base of 100 MVA, 11 kV is ___________

1. 44
2. 0.44
3. 4.4
4. 0.04

Correct Option: B

X_d(new) = X_d(old) ×		KV_old,base		²	×		MVA_new,base
		KV_new,base					MVA_old,base

= 0.4 ×		11		²	×	100	= 0.44 pu.
		11				75