MD&A

MD&A performed a major inspection and scheduled repairs of a Toshiba® 130 MW steam turbine. During this planned outage, along with a LP turbine inspection, the combined main stop/control valve (MSV/CV) was replaced, as well as the L-0 and L-1 buckets. MSV/CV Replacement Replacement of the combined main stop / control valve (MSV/CV) was requested […]

Mechanical Dynamics & Analysis (MD&A) performed a GE® Frame 7EA Gas Turbine Major inspection and a 7A6 air cooled Generator Minor inspection including planned maintenance for a peaking unit in the Midwest. The planned scope of work included replacement of combustion and hot gas path (HGP) hardware and components, IGV gears, ring gear, and bushings. […]

Mechanical Dynamics & Analysis (MD&A) has completed another successful generator rewind as part of life extensions programs on a gas turbine fleet in the northwest US. This project featured a unique focus on the totally enclosed water-to-air cooled (TEWAC) assembly including complete GE® 7A6 generator isomode pad replacement. MD&A provided all tooling, supervision, and labor […]

Effective maintenance, repair, and overhaul (MRO) practices are vital for reliable turbine operation. Innovative technologies such as artificial intelligence and 3D scanning are transforming MRO processes

When an overseas steam-side client asks you back to manage a gas turbine project, that confirms confidence in your project leadership, full-scope knowledge, and technical depth. Mechanical Dynamics & Analysis (MD&A) is a GE® 9FA turbine full-service provider. MD&A was contracted to manage and apply their hands-on skills to disassemble, inspect, re-stake, and reassemble a […]

MD&A’s Turbine and Generator Controls Division recently completed turnkey installation services for an excitation system retrofit at a power generation plant. The project entailed the replacement of several key components including the voltage regulator and interface to the control and protection systems. The team handled the entire project including design, component selection, installation, and unit […]

The power industry has long been lamenting its aging workforce. While turnover has been happening for years, there remains a large percentage of power professionals on the verge of retirement. Furthermore, the U.S. Bureau of Labor Statistics predicts faster than average job growth for engineering occupations. That means experienced workers with the skills needed by […]

Mechanical Dynamics & Analysis performed a 7FH2 Partial Re-Stack of the core step iron & Full Stator Rewind on a GE® 7FH2 generator. Several 7FH2 units have experienced failures of the core step iron, caused by inadequate compression of the core laminations.  This issue was first brought to light by GE® TIL 2260, which only […]

Mechanical Dynamics & Analysis (MD&A) is a leading provider of gas turbine component repairs. With a focus on maintaining optimal performance and reducing operating costs for our customers. MD&A has developed a range of repair processes for 7FA.04 advanced gas path (AGP) components. Significant savings can be realized by opting for lower-cost repaired spares instead […]

Mechanical Dynamics & Analysis (MD&A) has completed back-to-back major inspections of two 180-MW GE® 7FA.04 gas turbines and 7FH2 generators, returning both to fully dispatchable service on schedule. The complexity of the planning & implementation of these outages for the owner/operator exemplifies the time-proven expertise and capabilities that exists throughout MD&A. MD&A provided all project […]