7EA Users Group

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

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 …

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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

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 »

2020 Best of the Best: Crete

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 …

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2020 Best of the Best: Hermiston Generating Plant

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 …

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2020 Best of the Best: PSEG Peakers

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 …

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TURBINE TIPS: Test VIGVs periodically to assure reliable operation

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 …

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OVATION USERS GROUP 2020 CONFERENCE REPORT

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 …

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In-situ extraction of a migrating 7EA S-12 shim saves owner more than $400k

It was only a few years ago that owner/operators of GE E- and F-class gas turbines learned technicians from Advanced Turbine Support LLC could extract or blend shims in the first three compressor stages in-situ—no case removal necessary. That was a big deal because shims found protruding into the compressor air stream during a borescope …

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New tools for locating pitting, wall loss, corrosion, cracking in HRSG headers, tubes, welds

TesTex Inc specializes in electromagnetic non-destructive testing and has developed innovative methods and equipment for combined-cycle HRSG healthcare. Founded in 1987, the company, both multi-industry and global, maintains a focus on heat-recovery steam generators in the challenging combined-cycle world. Its primary mission is fast, accurate, and cost-effective NDT services using pioneering state-of-the-art equipment and expertise. …

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