If I remember rightly, I think it was a Single phase supply, but it was boxed in.
The first 100A fuse was used for the supply,to the house hold, I think the other two 100A fuses were looped across the infeed, but there was no visible outfeed.
I was curious why three fuses?
I'll try to get a photo but not sure how to post it on here,or post a sketch!
Cheers!
