Preventing Failures in Isolated Phase Bus

Published Jun 24th, 2021 IRMC 2021, James Timperley

The isolated phase bus (IPB) is a high energy system used to connect large electric generators to the power grid through the GSU transformer. A typical bus operates for decades with minimum care. How it works and how it is
built is not common knowledge .

Because of inherent high reliability, these high energy systems are often ignored until there is a failure. Repair costs and lost sales revenue can run into millions of dollars Collateral damage to a generator or GSU transformer can result in outage lasting up to a year.


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