Factors to Consider When Looking For Generator Inspection Services
The durability of a generator depends on its maintenance, and inspection should be part of the package. You have to inspect it regularly to ensure that all the pieces are…
Applications and Limitations of Gas Turbine Non-Destructive Testing
Non-Destructive Testing prevents the risk of material flaws by analyzing its remaining lifetime against the existing defects. NDT can accurately pinpoint fractures in a system to enhance the safety of…
Clashing damage found to increase over time in at least some compressors
Clashing, the term used to describe the contact between rotating blades and stationary vanes that has occurred in some compressors for GE frame engines, generally does not stop after the blade profile…
7EA state-of-the-engine report for 2014 focuses on compressor clashing, blade tip distress
A timely opening presentation by an engaging speaker is critical to the success of most meetings, at least based on the editors’ experience. If the audience connects well with the…
Clashing damage found to increase over time in at least some compressors
Clashing, the term used to describe the contact between rotating blades and stationary vanes that has occurred in some compressors for GE frame engines, generally does not stop after the blade profile…
GE engineers closer to mitigation strategies for clashing, other 7EA S1 issues
Attendees benefit most from user group conferences involving robust participation by owner/operators, OEMs, and third-party services providers because it provides them perspective on various aspects of a particular issue. Inevitable…
TILs 1884, 1854, and 1562 important to achieving high availability with your 7EAs
The 2013 Conference of the 7EA Users Group, conducted at the Hyatt Regency Monterey (Calif) Hotel and Spa, October 22-24, exceeded expectations in terms of participation, venue, and content—at least…
7EA S1 liberations occur on units with no history of clashing
7EA owner/operators have been conditioned to look for clashing damage in compressor stages 1 and 2 during inspections. Numerous presentations at the 7EA Users Group and CTOTF meetings by plant personnel, the OEM, Rod…
Field update suggest conducting TIL 1907 inspections as soon as practicable
Cracks in the R0 dovetails of rotor forward shafts on 7FAs and 7FBs are said to be possible in about three-quarters of the gas turbines in the combined fleet, according…