communication between the protection relay ABB REF615/RET615 and AC800M controller via OPCSERVER
I'm working on a communication between the protection relay ABB REF615/RET615 and AC800M controller via OPCSERVER without going with CI868 module. the problem that i have is that i get only the primary measurments of the CT and VT of the current, voltages, powers... and i couldn't find how to multiply it by the nominal values. so if you have a solution it would be kind of you to show it to me.
Hi, There are 2 ways of doing this: 1. If you are using ABB 800xA or any other SCADA , then directly in expression you can multiply the parameter with any value. 2. Read the relay manual & there you will find multiplication factor units, which you needs to change as per your requirement.