CT Design Questions
CT Design Questions
(OP)
Hi
I have two questions for the CT gurus.
I am doing some CT studies for a local utility and cannot get my head around the following:
1. I have tried to calculate the mean core length based on the error specification but get a value of 8m! Please see attached for detail of question.
2. I have calculated the magnetising impedance as 198ohms at the ALF level and wonder if this is correct for a Class 10P? Again details in attached.
Many thanks in advance.
I have two questions for the CT gurus.
I am doing some CT studies for a local utility and cannot get my head around the following:
1. I have tried to calculate the mean core length based on the error specification but get a value of 8m! Please see attached for detail of question.
2. I have calculated the magnetising impedance as 198ohms at the ALF level and wonder if this is correct for a Class 10P? Again details in attached.
Many thanks in advance.





