Hello,
I need to build a simple, inexpensive, variable AC current source for motor overload relay testing. I want to source 0-100 Amps, 60 HZ
I plan to simply backfeed a Current Transformer with a 120 Volt Variac, taking all necessary safety precautions. Then pass one or multiple turns of wire through my CT primary to feed my motor overload relay.
I am curious if anyone has suggestions to improve this technique, such as CT Ratio, burden rating of CT, applied secondary voltage (more or less than 120 VAC), window versus bar type CT, or anything else that comes to mind.
Thank You!
I need to build a simple, inexpensive, variable AC current source for motor overload relay testing. I want to source 0-100 Amps, 60 HZ
I plan to simply backfeed a Current Transformer with a 120 Volt Variac, taking all necessary safety precautions. Then pass one or multiple turns of wire through my CT primary to feed my motor overload relay.
I am curious if anyone has suggestions to improve this technique, such as CT Ratio, burden rating of CT, applied secondary voltage (more or less than 120 VAC), window versus bar type CT, or anything else that comes to mind.
Thank You!