7EA Users Group

It only takes 2-3% steam overflow to trigger a steam turbine/generator (ST/G) overspeed event, cautioned Dean Casey, project manager for machining services at MD&A, to stress the importance of main-steam-valve inspections and timely repairs. During his presentation in MD&A’s fall series of webinars, “Steam Turbine Valve Outage Common Issues,” Casey went on to say that […]

MD&A kicked off its fall 2022 webinar series with a presentation on rotor life extension. You’ll want to take an hour and listen in if your plant has a 7F unit approaching 5000 starts/144,000 equivalent operating hours (EOH) or a 7B through 7EA unit approaching 5000 starts/200,000 EOH. Get the background on these requirements in

The underlying message of MD&A’s third webinar in its fall 2022 series is that a shop which has invested in a high-speed rotor balancing (HSB) machine (photo) offers the user clear advantages in shortening outage schedules and avoiding the risk of having to transfer the machine from the shop where repairs are made to a

The Turbine Inlet Cooling Assn (TICA) announces that its annual awards to owner/operators of GE aeroderivative gas turbines who have demonstrated the successful implementation and use of at least one turbine inlet cooling (TIC) technology will be conferred during the 2023 Western Turbine Users Inc (WTUI) Conference (March 12-15 in San Diego). One award will

Presentations by owner/operators are highly regarded at user-group meetings. The first-hand experience detailing how a particular job was conducted, what worked/what didn’t, lessons learned, etc, can be invaluable to someone considering a similar project. Plus, there’s the opportunity to ask questions and get straight-forward answers. You should be aware of the six user presentations from

Encompassing 1300 GW of global capacity, 450,000 MW of that in the US, and 120,000 MW of combined-cycle capability, the Ovation control system platform, according to Robert Yeager, president of Emerson Automation Solutions Power & Water, is Number One in global power generation control systems. But Yeager, in the traditional “bragging rights” opening remarks at

The 7EA gas turbine’s many attributes—including generally high reliability and availability, and good efficiency in a wide range of applications on a variety of fuels—help make it the most popular mid-size (nominal 85 MW) industrial gas turbine. There are said to be about 1200 of these machines in service. Annual meetings of the 7EA Users

Heat-recovery steam generators (HRSGs) are sometimes ignored by personnel at plants powered by GE Frame 7 E-class gas turbines—primarily 7Bs, 7Es, and 7EAs. The 7EA Users Group, with which you are most familiar, focuses on “things engine,” leaving solutions for other major equipment—including HRSGs and steam turbines—up to others. There are more boilers and steam