Brijm
Lifetime Supporting Member
I'm looking to add some diagnostic logic, to some three phase heaters. The elements our SCR controled (2-leg) at about 100A. We are mostly looking for current imbalance, to indicate that a element is blown, or there is a problem with an element. I did a quick google search for 3ph current imbalance, and also heater burnout, but didn't find much. I'm thinking about using analog cards to compare the current values in the PLC.
Can anyone reccmend a device for this application? How much do I need to worry about the 2-leg controled SCR if I take the signal into the PLC?
Thanks
Can anyone reccmend a device for this application? How much do I need to worry about the 2-leg controled SCR if I take the signal into the PLC?
Thanks