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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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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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Turbine Bucket Redesign & Modification

Turbine Bucket Redesign

Mechanical Dynamics & Analysis (MD&A) performed a turbine bucket redesign & modification on a variable-speed steam turbine. The unit is an essential prime mover for a compressor/chiller. The rotor was sent to MD&A’s Turbine-Generator Repair Facility in St. Louis, MO for standard blast cleaning, NDE and visual inspection. Inspection Stage 3 L-0 stage buckets and […]

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