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MD&A Insight

Combined Cycle Overhaul with our One-Stop Shop

Combined Cycle Overhaul

Mechanical Dynamics & Analysis (MD&A) recently completed an overhaul at a combined cycle plant consisting of gas and steam turbine majors, a steam turbine generator minor inspection, and a gas turbine generator major inspection. The customer combined scope was the largest single project implemented at the site since the combined cycle plant was commissioned. MD&A […]

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Steam Turbine Nozzle Chambers and Casing Weld Repairs

Repaired Flow Guide Installed and Upper Half Casing Ready for Final Assembly Check

Mechanical Dynamics & Analysis (MD&A) performed Nozzle Chambers and Casing Weld Repairs on a 580 MW Westinghouse® Steam Turbine and returned the equipment ahead of contract schedule. Upon initial examination, significant issues were revealed with the HP inner casing, nozzle chambers, and selected components, all critical for proactive maintenance and long-term operation. This 3600-rpm machine […]

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Generator Stator Rewind

MD&A has a long track record of successful generator stator rewinds on-site. Stator bar aging puts your generator at risk so let our experts with superior workmanship and responsiveness perform your next stator rewind. MD&A uses superior materials to complete the job. You can count on MD&A’s attention to quality! View the video to see […]

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Comprehensive Industrial Outage

Comprehensive Industrial Outage

Mechanical Dynamics & Analysis (MD&A) experts recently completed a comprehensive industrial outage for a customer. During the planned major outage, the work scope included inspection and repairs of their industrial steam turbine-generator unit. The major inspection included disassembly, cleaning, inspection, performing recommended actions, and reassembly of the turbine, generator, and auxiliaries. The work scope also […]

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Rapid Steam Turbine Replacement

Figure 6. IP/LP Rotor Assembly Installed at the Power Plant

Mechanical Dynamics & Analysis (MD&A) completed a comprehensive and rapid steam turbine replacement project in record time after the unit experienced a catastrophic failure event, requiring the replacement of the entire steam turbine and auxiliaries. THE CHALLENGE:   The subject power plant is an important electrical generating facility in the country it is located within.  Returning the […]

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Portable In-Situ Air Flow Test Stand

Mechanical Dynamics & Analysis (MD&A) announces Portable In-Situ Air Flow Test stand capabilities that allow for immediate and conclusive data on gas turbine nozzle performance. This flow test apparatus provides efficient gas turbine air/gas flow analysis and is offered by MD&A Fuel Nozzle Services Division/ Integrated Combustion Solutions (ICS). The typical call to action is […]

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Generator Automated Hydrogen Purge Package

GMCP

In the power generation industry, most large generators are cooled by hydrogen gas. Hydrogen has excellent thermal conductivity properties, but it is also explosive and flammable when mixed even in small amounts with ordinary air.  If a unit will be offline for a while, for example, for a planned maintenance outage, the hydrogen must be […]

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Hydrogen Seal Upgrades

Hydrogen Seal Upgrades

Mechanical Dynamics & Analysis (MD&A) upgraded a customer’s hydrogen seals for a 7FH2 generator located in Colombia. Many units in the combined cycle setup, which can be comprised of two MS7001FA gas turbines and a D11 steam turbine, are also equipped with 7FH2 generators. Many of these machines have unbolted babbitted hydrogen seals. If there’s […]

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Operating Surveillance

Mechanical Dynamics & Analysis’ (MD&A) experts performed a steam turbine and generator Operating Surveillance for a customer where various issues and leaks were identified for the operating unit. The Operating Surveillance service is typically performed while the unit is online and takes 2-3 days depending on the size and complexity of the unit. These results […]

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Mechanical Dynamics & Analysis LLC   |   19 British American Blvd., Latham, NY 12110   |   P (518) 399-3616   |   F (518) 399-3929