MD&A Solution for 7FH2 & 324 Stator End Winding Dusting Issues

Over the past decade there have been several reports of dusting on the GE® 7FH2 & 324 stator end winding systems. The dusting has been found on earlier and late model generators as a result of materials used during manufacturing. MD&A is experienced in evaluating the areas dusting has been found and making repairs which […]

Read More

Valve Seat Repair

Mechanical Dynamics and Analysis inspected and repaired a KN turbine’s HP and IP MSV and CV seat areas. There is a history of these units having stellite bonding issues.  MD&A can perform valve seat repair on-site or in-shop!   The HP valves were the first to be inspected in-shop. It took very little effort to liberate the […]

Read More

MD&A Insight Newsletter

With our vast range of products and services for power generators, we hope this MD&A Insight Newsletter can help you with our expertise, case studies and helpful bulletins.   Vol 13 NEWSLETTER: June 14 2018 Vol 12 NEWSLETTER: Mar 15 2018 Vol 11 NEWSLETTER: Dec 14 2017 Vol 10 NEWSLETTER: Sept 19 2017 Vol 9 […]

Read More

Gas Turbine Services

Experienced Gas Turbine-Generator Parts, Repairs, and Services Power plant owners and operators have entrusted their turnkey turbine-generator overhauls to Mechanical Dynamics & Analysis for over three decades. Our project managers and technical directors are seasoned professionals with a broad range of experiences whose skill sets cover both common and unique makes and models of turbo […]

Read More

Steam Turbine Advanced Sealing System

MD&A Parts Division’s Advanced Sealing system for steam turbines, consists of the Patented Guardian® & Vortex Shedder® Sealing Technology which improves steam turbine efficiency above design! View our new 3D video below and then call MD&A Parts Division today at (518) 885-3199 or use our Contact form.

Read More

Exhaust Temperature Spreads

WIBNISE Volume 1, Number 1: Exhaust Temperature Spreads What is an exhaust temperature spread, and why is it so important to monitor and take appropriate action when an exhaust temperature spread develops? An exhaust temperature spread refers to a high differential in readings between the thermocouples placed radially around the exhaust of a gas turbine. The worst […]

Read More

Diaphragm Dishing Repair

Mechanical Dynamics and Analysis inspected and repaired a stage 15 dished diaphragm. The unit was an upgraded 297.5 MW D6 frame unit. The stage 15 diaphragm was found to be dished downstream by approximately 0.215”. MD&A’s Turbine-Generator Repair Facility performed a dishing repair to the stage 15 diaphragm by cutting out the old weld, re-positioning, […]

Read More

MD&A Company Video

Mechanical Dynamics & Analysis is a steam & gas turbine and generator full service provider.  MD&A began in 1982 as a small engineering firm supporting power generation companies with third party consulting services.  Since its inception, MD&A has maintained an entrepreneurial culture and has focused on outstanding customer service. As a result, over 35 years later, […]

Read More

Rexroth® Hydraulic Actuator

MD&A Bearings, Seals & Hydraulics Division (MD&A) recently rebuilt a Rexroth® hydraulic actuator in less than 5 days which included providing new disc springs, servo, poppet valve and shaft. This level of service saved the owner weeks of forced outage downtime and revenue loss. During operation the owner observed erratic valve response and hydraulic fluid […]

Read More

A-10 Rotor Straightening & High Speed Balance

Mechanical Dynamics and Analysis inspected and repaired an A-10 frame High Pressure rotor.   The unit was a 3600 rpm, 90 MW combined cycle unit.  MD&A’s Turbine-Generator Repair Facility performed the incoming inspections / evaluations, repair straightening of the rotor, final inspections, as well as high speed balance. Incoming inspections and evaluation consisted of blast cleaning, […]

Read More