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Welcome to Mechanical Dynamics and Analysis’ (MD&A) Resource Center! MD&A is one of the largest turbine-generator repair & turbine engineering organizations in the United States. We provide complete project management, overhaul and reconditioning of heavy rotating equipment worldwide. Our turbine engineering service teams of project managers, technical directors, shop personnel and consulting turbine-generator engineers are […]

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HPU Pump Motors Are Continuously Running

PROBLEM DEFINITIONThe Hydraulic Power Unit (HPU) pump motors are continuously running at excessive current levels. DETAILMany Hydraulic Power Unit (HPU) pump motors have been observed to be running with excessive current while the turbine is at steady state operating conditions. This condition may also be accompanied by an inability to hold normal operating pressure of […]

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