Hey guys, i'm sure this is a dumb question but I have been flipping back and forth through the NEC and handbook and can't find a definitive answer.
I am going to be installing a 30 kva 480 -208/120 transformer in a room adjacent to the electrical room. The transformer will then feed a 125 or 150 amp panel in the same room as the new transformer. Do I need OCP on the secondary, such as a fused disco or a main breaker in the new panel? Or can the secondary run straight to a Main Lug loadcenter? The transformer is the small red box in the corner, and the loadcenter is the red box in the middle on the wall.
I am going to be installing a 30 kva 480 -208/120 transformer in a room adjacent to the electrical room. The transformer will then feed a 125 or 150 amp panel in the same room as the new transformer. Do I need OCP on the secondary, such as a fused disco or a main breaker in the new panel? Or can the secondary run straight to a Main Lug loadcenter? The transformer is the small red box in the corner, and the loadcenter is the red box in the middle on the wall.