We had a switch fail to close on the A phase of a floating wye connected capacitor bank. The C phase fuse was found to be bad and was replaced, however the B phase fuse then blew. The bad switch was then found and replaced. After that the system operated normally. The contractor said the open phase caused the overcurrent on the other two phases. I would have thought that the current on the remaining circuit would reduce to 86.6% of normal. What am I missing?