I'm familiar with the smallest breaker/ cable requirements for a load. Example, a 10A continuous load would require a 10A * 1.25 = 12.5A rated breaker or "the next standard size up". Unfortunately, "the next standard size up" is ambiguous and I'm wondering how large a breaker/cable can be for...
I'm going through a list of 12 transformers and trying to determine if they are wye or delta. The schematics I have come across are for power engineering and don't go into too much detail other than the following:
The transformers step down ~400V 60Hz AC (three-phase) to ~120V 60Hz AC (single...