two secondary connections in current transformer?

[engr.waqas]

current transformer connections

why there are two secondary connections in current transformer named secondary K and secondary I

 

[pranam77]

current transformer connections

It depends on where and why the said transformor is used. Usually two windings may be used to take different current readings where one may be used to measure High currents whereas other may be used for very small readings to get better accuracy. Good luck