$300$MVA, $20$KV$,$ star connected, $3$ph $60Hz$ synchronous generator is operating at the rated voltage, a $3$ ph fault occurs at its terminal. Its reactance in p$.$u$.$ are $1\mathrm{.}2$ of synchronous, $0\mathrm{.}6$ of transient, $0\mathrm{.}3$ of sub transient. The transient time is $500ms$ and the sub transient time is $35ms.$

What will the AC component be after $2$ cycles?