The capacitor bank consists of 6 400 Kvar capacitors, 2 in parallel per phase, connected in a floating wye. Each leg has a series 11.5 mH inductor. It operates at 13.8 kV. It is doing power factor correction for typical industrial loads i.e. many motors, ac inverter drives etc.
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...