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GE offers steam turbine repair and maintenance programs to help keep your combined cycle power plant efficient and competitive for the future.
As a steam turbine OEM with experience on many types of valves, GE is well qualified to carry out repairs on valves and actuators of any OEM.
GE has established analysis and repair techniques for both temporary and long-term repair solutions for combined cycle power steam turbines. This work can be integrated with a long-term replacement or upgrade strategy.
Rotors are prone to bowing because of many factors, including a reduced number of bearing pedestals and today’s more demanding operating requirements.
GE’s rotor straightening solution includes an engineering root cause analysis, assessment and computer modeling, and recommendations based on the condition of the steam turbine rotor.
How we repair your rotor:
With over 570 rotor welding projects completed, GE has the experience you can rely on for your combined cycle steam turbine.
Combining outstanding rotor weld experience with world-class technical knowledge, Global Repair Solutions (GRS) has the technical experience to return damaged rotors back into service with both long- and short-term solutions.
GE Power offers a partial steam path repair solution for major steam turbine diaphragm repairs.
As part of the repair process, the damaged exit side of the steam path and sidewalls is machined so that it is returned to the transition point of the partition, typically about one-third of the depth. The removed steam path side is then replaced with new partial partitions and sidewalls.
Diaphragm dishing is a known issue on most steam turbines. It occurs because of elevated temperatures and high stresses, which cause the steel to creep over time.
GE conducted a study to look at several dishing repair methods and the effect they have on long term dishing. Using ANSYS and GE proprietary modeling techniques, the study was performed on typical third-stage HP and IP diaphragms from medium-sized turbines. The results show that GE’s Power Services solution can offer a more than 50% reduction in creep over time vs. a bridge repair, and better results were observed in comparison to pure heat straightening.
Meeting our customers’ needs for parts in a timely manner is high priority for GE’s steam turbine services team. To that end, we have implemented a new inventory strategy that will help address supply chain issues and get your operations back up and running as quickly as possible.
Our inventory includes raw materials and finished goods for long-cycle parts (primarily D11 steam turbines).
We have up to $25 million in steam turbine parts available at all times—including front stage buckets/blades, HP/IP blades, L-O buckets and valve parts.
If you have emergent needs for a part we don’t currently have in inventory, we can work with you to support your short term operations while our team makes the necessary parts.
When planning your parts needs, we advise moving your parts spending to your capital improvement budget to help ensure you have the parts needed to improve or restore performance and reliability. Even if you don’t need every part we have, contact us to get a quote! That will help you understand your cycle time and allow time for appropriate budgeting.
Explore all our combined cycle steam turbine services.
Through our continual investment in local resource development, GE delivers outage services, on-site testing, and repairs where and when you need them.
With a wealth of turbine experience, GE brings proven processes and modern technology to all aspects of diaphragm refurbishment.
GE’s integrated approach to steam turbine upgrades extends unit life, boosts operational efficiency, and enhances the flexibility of your combined-cycle power plant.
GE’s advanced steam path (ASP) upgrade can solve many maintenance and lifetime problems. It delivers up to a 2% increase in steam turbine output (in the same bottoming cycle) through the recovery of aging losses and improved technology.
Reliable operation of your steam turbine’s main stop and control valves and combined reheat valves is critical for the safe, predictable, and high-performing operation of both your steam turbine and combined cycle power plant.
Flexibility means versatility. We have steam turbine solutions to help maintain your plant’s performance during frequent cycling.
Business environments are constantly transforming, but you need to deliver consistent outcomes. By partnering with us for long-term service agreements (LTSA), you can realize the full potential of your gas plant.
GE has implemented a new approach to outages called Live Outage, which was developed along with experts from the field to improve the field execution experience for our customers.
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