• Steam turbine governer valve found sticking at a combined-cycle power plant

What did GE's analytics software find?

On March 3, the GE SmartSignal solution found that the active and inactive thrust bearing metal temperatures increased rapidly from 205°F (96°C) to over 225°F (107°C) and from 147°F (64°C) to over 165°F (74°C)respectively. Due to the large temperature increase over a short period of time, GE’s Industrial Performance & Reliability Center (IPRC) sent a high priority notification to the customer.


What was the underlying cause?

The customer investigated immediately and found that the left side governer valve was not opening. The customer cycled the valve and the temperatures returned to acceptable levels.


What was the value to the cutomer?

The faulty governer valve was causing increased backpressure to the Heat Recovery Steam Generator (HRSG), reducing steam flow and increasing temperatures. A high priority notification from the GE SmartSignal solution and the IPRC allowed the customer to correct the valve issue expeditiously before the condition caused significant damage to the equipment or potentially caused a turbine trip.


Active metal temperatures increased from 205°F (96°C) to 225°F (107°C). The inactive metal temperatures increased from 147°F (64°C) to 165°F (74°C). After valve cycling, the values decreased back to acceptable levels.

Related Stories

Find out how the Industrial Internet is changing the game for industrial companies. Our customers are leveraging industrial big data and predictive analytics every day to optimize their processes and asset performance. They’re on a journey. Their outcomes are real. And they’re powered by the Industrial Internet.

GE Aviation's Muskegon team uses APM, collecting data on machine statuses, utilization, and performance

GE Aviation Moves to Condition-Based Maintenance with APM

As a result of implementing GE Digital’s APM solution, GE Aviation’s Muskegon facilities have seen improvements in workflow, specifically the...

Waterford Township uses HMI SCADA software from GE Digital to optimize its water utility operations

Waterford Township Improves Maintenance Consistency and Efficiency

Learn how Waterford Township's DPW has improved maintenance consistency and efficiency with Workflow software from GE Digital.

Spomlek leveraged GE Digital’s Manufacturing Solutions to implement a flexible, scalable, and custom MES system across all lines at its main plant, Radzyń Podlaski

Spomlek Improves Manufacturing Line Operations with GE Digital

Learn how Spomlek, one of Poland's largest manufacturers of hard cheese, leveraged GE Digital’s Manufacturing Solutions to implement a flexible,...


0 Results