I have two different server racks connected with two different phases vis different MCBs. Source DB is same. Recently we have experienced tripping of MCBs of both racks with in One minute time delay. Input supply is from latest version of MGE UPS systems.
Not able to find out the reason. Can some one explain the reason?
Please let me know if this One minute time delay is between the 2 MCB's, or both MCB's trip at the same time but this delay is more than a previous recorded tripping time.