I have a 415V, 3ph supply feeding 10 seperate accommodation cabins via 2 ditribution boards (5 cabins per board) and 10 x 25kVA transformers.
Each cabin has more or less the same design and hence the same installation guidelines. Therefore the water heaters are all on the blue phase and the 2 x 1ph air conditioning units per cabin are on the red and yellow phases respectively - those are the biggest loads
The current distribution per cabin is approx: L1 = 22.76A, L2 = 29.86A, L3 = 24.4A.
So there is a slight imbalance, BUT, by the time I multiply that by 10 the total phase loads are: L1 = 228A, L2 = 299A, L3 = 244A.
Is this acceptable?
Any advice would be gratefully appreciated.
Each cabin has more or less the same design and hence the same installation guidelines. Therefore the water heaters are all on the blue phase and the 2 x 1ph air conditioning units per cabin are on the red and yellow phases respectively - those are the biggest loads
The current distribution per cabin is approx: L1 = 22.76A, L2 = 29.86A, L3 = 24.4A.
So there is a slight imbalance, BUT, by the time I multiply that by 10 the total phase loads are: L1 = 228A, L2 = 299A, L3 = 244A.
Is this acceptable?
Any advice would be gratefully appreciated.