7EA Users Group

Investigative process addresses, helps correct generator thermal sensitivity Quail Run Energy Center Owned by Quail Run Energy Partners LP Operated by NAES Corp 550-MW, gas-fired, two 2 × 1 combined-cycle power blocks located in Odessa, Tex Plant manager: Steve Reinhart Over the years, one of the plant’s four gas turbine/generators developed excessive vibration on the […]

7EA users captured one Best of the Best and two Best Practices Awards in the 2019 judging. None of the best practices is frame-specific so they may be of value to owner/operators of other frames as well—especially facilities focusing on performance improvement and safety. Thumbnails of the three plants receiving awards: Investigative process addresses, helps

Turbine Tip No. 4, contributed by PAL Turbine Services’ Owner/GM Dave Lucier, applies to General Electric Frame 5 models K, L, and LA. The focus here is on fuel pumps that are retained when the control system is upgraded. The fuel pump of choice on GE gas turbines following the Great Blackout of November 1965

​ Addressing stress corrosion cracking in the turbomachinery industry Stress corrosion cracking is a common problem affecting turbomachinery components such as rotor discs, steam turbine blades and compressor impellers, and is a major factor driving component repair. This type of cracking may lead to catastrophic failures which result in unplanned down time and expensive repairs.

Over 40 companies serving the CCGT industry have posted recorded technical presentations, a plethora of resources, and specialized contact details only accessible by GT owner/operators at powerusers.org. Vendors listed here are participating in the very first 7F Users Group 2020 Digital Conference set to begin on Tuesday, June 16, at your computer, conference room, or

Editor’s note: What follows is a short report from the United States Energy Assn’s (USEA) webinar, “The Role of Hydrogen and Renewable Gas in Decarbonization,” June 12, 2020, moderated by Llewellyn King, executive producer and host, White House Chronicle. Panelists from Guidehouse, which acquired Navigant Consulting Inc in October 2019, were Mark Eisenhower, partner, Energy,

One of the unique aspects of the 7F Users Group’s 2020 Digital Conference is the opportunity to interact online with the OEM and nearly 50 third-party solutions providers. Ten companies in the latter group were selected by the steering committee to conduct live technical presentations of one or two hours during Weeks Two, Three, and Four

The 2020 Digital Conference hosted by the 7F Users Group was the first web-based annual meeting conducted by a user group serving owner/operators of gas-turbine-powered simple- and combined-cycle generating plants in the US. Most of nearly 700 registered users believed the 13-day event, conducted over five weeks from June 16 through July 16, exceeded expectations.

Unit trips finally stop at Crete after relocating generator PTs—a 12-yr case history Since 2008, perhaps earlier, Crete Energy Venture, operated by CAMS, had been experiencing generator circuit-breaker trips and grid separation because of PT (potential transformer) fuse failures. Between 2008 and 2009, Unit 1 suffered eight PT fuse-failure events (nine total among the plant’s

Hydrogen purge remote activation helps keep employees safe Hermiston Generating Plant Owned by Perennial Power Holdings and Pacificorp. Operated by Hermiston Operations Co. 500-MW, gas-fired, 2 × 1 7FA-powered combined cycle located in Hermiston, Ore Plant manager: Brad Knight Challenge. Provide an automatic remote means to purge a hydrogen- cooled generator without dispatching employees to