MD&A

Mechanical Dynamics & Analysis (MD&A) completed a GE® 7FA gas turbine major inspection on a dual-fuel 7FA.03 unit alongside a hydrogen-cooled 7FH2 generator, returning the turbine-generator to service on schedule. The combined outage included full disassembly, inspection, repairs, and precision alignment to restore reliability and performance. In the power generation industry, reliability and efficiency are […]

Major Inspection of a 330H gas-turbine generator indicated that a stator rewind was needed. The unit failed electrical tests and had suffered with indications of heavy wedge slot and bar tie greasing. The owner/operator asked MD&A to complete the generator rewind and get the unit back online for long-term, trouble-free operation. Unit disassembly began with […]

MD&A performed a Full-Service Steam Turbine Major outage, which included the HP/IP inspection and repairs on a 610MW GE® G2 steam turbine. While keeping tight to the schedule deadline, several of MD&A’s divisions and teams worked closely together on this comprehensive engagement, both onsite and offsite. They performed an extensive scope of work ranging from […]

Time and time again, Mechanical Dynamics & Analysis (MD&A) shows the global utility industry its strength, technical capability, and resource depth to serve as a premier alternative to the original equipment manufacturer for both services and parts supply. In fact, MD&A established itself in the beginning as the preferred non-OEM supplier, regardless of original supply […]

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 […]

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 […]

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 […]

In the power generation industry, turbine reliability is non-negotiable. When a critical component like the HPIP outer shell of a steam turbine shows signs of cracking or deformation, utilities must act decisively to prevent operational disruptions and ensure long-term performance. Mechanical Dynamics & Analysis (MD&A) has completed HPIP Outer Shell Valve Chest Weld Restoration onsite […]

Discover how leading operators are maximizing asset value, reducing downtime, and avoiding unnecessary capital costs with advanced rotor life extension strategies. Your E- and F-class gas turbine rotors may be approaching OEM-defined end-of-life—but that doesn’t mean replacement is your only option. In this exclusive executive brief from Mechanical Dynamics & Analysis (MD&A), you’ll learn how […]