Hi, i want to learn two things if you dont mind..
i sometimes hear "aggregate " in the matters related to power systems what does it mean here?
secondly i wonder what does 10p10 ,10p15 etc mean as regards CT's
First CT's: in the IEC world a 10P10 CT means the CT is designed for Protection use and accuracy will be within 10% up to 10 times rating. (A 1200:1 10P10 CT is within 10% up to 10 x 1200 = 12,000 amps. )
A 10P15 is a Protection CT accurate within 10% up to 15 times rating.
I'm guesssing that aggregate means aggregate load - add all of the individual loads together.
