7EA Users Group

​ 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. …

Addressing stress corrosion cracking in the turbomachinery industry Read More »

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 …

PowerUsers unveils digital presentation library in advance of 7FUG 2020 Read More »

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, …

Hydrogen: A quick reality check Read More »

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 …

Easily connect with and view presentations from key suppliers @ 7FUG 2020 Read More »

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. …

Missed portions of GE’s technical program at the 2020 7F Users Group meeting? Want to revisit some presentations? Connect via CCJ’s summary here Read More »

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 …

2020 Best of the Best: Crete Read More »

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 …

2020 Best of the Best: Hermiston Generating Plant Read More »

Maintenance, outage file-sharing boosts productivity at four peaking plants Challenges: Downsizing of planning staff created a backlog of outage/maintenance planning and scheduling tasks. Personnel at the Kearny, Burlington, Linden, and Essex peaking sites had to communicate together in real time. Needed a way to consolidate all reference materials, procedures, IPBs, drawings, and schedules for use …

2020 Best of the Best: PSEG Peakers Read More »

Turbine Tip No. 8 from the PAL Solutions Library applies to General Electric 5001N, 5002B, 6001B, 7001B-EA and F, and 9001EA and F gas turbines. It is the work of Dave Lucier and Charlie Pond (deceased) of PAL Turbine Services LLC. Proper operation of compressor variable inlet guide vanes (VIGV) is crucial for those gas …

TURBINE TIPS: Test VIGVs periodically to assure reliable operation Read More »

Goal of an integrated powerplant knowledge platform nearly reached Twenty-five years ago, at least one powerplant controls company executive articulated a vision of integrating disparate and siloed software applications into a unified whole, anchored by the distributed control system (DCS). That executive was Robert Yeager, long-time president of Emerson’s Power and Water Solutions. At the …

OVATION USERS GROUP 2020 CONFERENCE REPORT Read More »