CT, class S10, class 3/2
CT, class S10, class 3/2
(OP)
Dear All.
We prepare now retrofit of very old system ( 195..).
Customer was sent us data of CT at the object.
CT with class 3/2 and S10, I try found what it is.
Could you please help me with this issue.
Actually, we will replace CT's , VT's and protective relays, but maybe one step od retrofit old relays will operate with new CT's, for this reason I would like know, what is 3/2 and S10.
Thanks in advance.
Slava
We prepare now retrofit of very old system ( 195..).
Customer was sent us data of CT at the object.
CT with class 3/2 and S10, I try found what it is.
Could you please help me with this issue.
Actually, we will replace CT's , VT's and protective relays, but maybe one step od retrofit old relays will operate with new CT's, for this reason I would like know, what is 3/2 and S10.
Thanks in advance.
Slava






RE: CT, class S10, class 3/2
The 3/2 class is probably a metering Class CT.
RE: CT, class S10, class 3/2
Thanks a lot.
I decide use 5P20 for protection and 0.5 for metering.
According to calculataion, it's good for old system too.
Best Regards.
Slava