Answer / sundar

generally the CT draws load according to its rating,if it
is drawing more then that specified rating then there is
chance for ct saturation.

Answer / nishant

CT saturation occurs when secondary of CT is left open while
primary is carrying the line current. Enormous flux is build
up in the core due to primary current, secondary being open
there is no counter flux to control it. As a result, CT core
saturates. Hence, CT Secondary should not be left open while
primary being enerzized. It should be rather shorted by
closing CT shorting contacts.

No idea about calculation...

Answer / kiran patil

I think Ct saturates when it is short circuited

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