Bridging the Governor Retrofit Gap with Electro-Hydraulics

By Lynn Revak,

"There comes a time in the life of many turbines when a change of governor system is needed. Often, this is caused by plant-wide control system upgrades. Sometimes the need is simply for closer control or maybe a few remote readouts. Upgrading to anything but electronic controls makes little sense."

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Steam Turbine Overspeed Trip Systems

By Boyd Davis

"Numerous failures and near failures of rotating equipment throughout history can be attributed to the malfunctions of overspeed protective devices. This can be due to lack of preventative maintenance or operators not having a clear understanding of the devices.

There is a need for everyone associated with rotating equipment to have a working knowledge of the overspeed protective device we know and have today.

In this presentation, the various overspeed trip devices and their operation will be discussed so that we all may have a better understanding of their purpose."

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