@JG2828 - thanks for the response; unfortunately, we use FT-1 switches at the relay racks only, which is typically the end of the CT secondary run. Ideally, this lock out mechanism would be applied at the PCB cabinet, or closest to the source as to leave the rest of the circuit available for...
Hello,
I am wondering if anyone has come across a method to "Lock Out" a Current Transformer secondary circuit? I spoke with a colleague who had attended a conference many years ago. He mentioned seeing a locking mechanism that could be placed over the shorting bar in a breaker cabinet or...
We, unfortunately, still utilize BUPPO ground switches (back-up protection pneumatically operated) for bank protection at a couple hydro generation sites. Cheap solution when you don't want to pay for a high-side PCB...