Perhaps the best way to begin this section on experiences shared by V84.2/V84.3A owner/operators during the annual conference of V users at the Pittsburgh Marriott City Center, September 2019, is to share the following passage from an announcement on the meeting from Scott Wright of PowerSouth Energy Co-op: “Many of you know Olaf Barth, who […]
User presentations/discussion from Pittsburgh Read More »
The V84.3A session began much like the E-class segment of the program, with a review of key facts about the frame: more than 370 engines of Siemens manufacture operating worldwide, 22-million EOH of fleet experience, and more than 99.3% overall fleet reliability. One big difference between the sister frames is that 80% of the F-class
Siemens SGT6-4000F highlights from Pittsburgh (2019) Read More »
In round numbers, there are about five-dozen V84.2s operating in the US, three-dozen V84.3As. CCJ ONsite has covered the 60-Hz fleet since the mid-2000s. Siemens has hosted annual face-to-face user meetings over the last decade and invited the editors to participate. HEADS UP. The 2020 conference planned for September 14 to 17 at the Hilton
Turbine Tip No. 7 from the PAL Turbine Services solutions library applies to General Electric Frame 5, Frame 6, and early Frame 7 gas turbines equipped with Mark V control systems. It is common for plant O&M personnel to focus their attention on the gas turbine during engine startup, operation, and loading. Fig 1 charts
The COMBINED CYCLE Journal and the steering committees of the industry’s leading user groups—including 7F, 501F, 7EA, Western Turbine, Frame 6, 501G, 501D5-D5A, AOG, and Combined Cycle—collaborate to expand the sharing of best practices and lessons learned among owner/operators of large frame and aeroderivative gas turbines. Fifty plants participated in the 2020 Best Practices Awards
Eight plants earn Best of the Best honors in CCJ’s annual Best Practices program Read More »
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 »
High wheel-space temperature issues were discussed by an owner/operator with three 42-MW 6Bs (Model 6581B) that had been commissioned in 2003. Two units completed their second major inspections in 2018, the third in 2019. High temperatures were noticed in the second and third turbine stages of one machine during startup following the major inspection. The
Frame 6 user presentations get high marks from attendees Read More »
More power? Better heat rate? Faster ramp rate? FSNL in less than 10 mins? Lower load points? More Fuel Flexibility? Longer maintenance intervals? PSM will be presenting a live webinar at the 7FUG 2020 Digital Conference on June 30, entitled “What else do you need from your 7F power plants?” All GT owner/operators are able
PSM: Rotor repair and lifetime extension solutions Read More »
The first presentation after opening remarks reviewed how GE communicates with its customers and the value to plant personnel of the OEM’s Technical Information Letters (TILs), Product Service Safety Bulletins (PSSBs), Product Service Information Bulletins (PSIBs), and GEKs covering installation, product specifications, troubleshooting, maintenance, technical recommendations, etc. There’s much owner/operators can learn by becoming familiar
Technical Information Letters TIL 2101, Modification of manual lever hoist for safe rotor removal. 2044, Dry flame sensor false flame indication while turbine is offline. 2028, Control settings for GE Reuter Stokes flame sensors. 2025, GE Reuter Stokes FTD325 dry flame sensors, false flame indication. 1986, Braid-lined flexible metal-hose failures. 1918, 6B Riverhawk load-coupling hardware
Checklist of safety TILs and PSSBs affecting 6B gas turbines Read More »
