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Generator

Generator Field Support Platform

Generator Field Support Platform

Mechanical Dynamics & Analysis (MD&A) experts have constructed a generator field support platform to allow for removal of the field when performing a 7FH2 Generator Major Inspection. Rotor field inspections can either be performed on-site or in a shop environment.  Repairs generally require the rotor field to be transported to a qualified repair facility.  MD&A […]

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Electric Generators 2018 Annual Review

Electric Generators

Read Electric GENERATORS 2018 Annual Review, a special report by CCJ.  It is complied from presentations made at the third GUG (Generator Users Group) conference from last August.  Electric Generators Review (PDF) MD&A is an exclusive sponsor and can meet all your generator needs! See you at 2018 GUG conference where our experts are presenting again! […]

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Emergent Generator Re-wedge

re-wedge

Mechanical Dynamics & Analysis (MD&A) performed an emergent generator rewedge for a 260 MW Alstom® generator on-site in Mexico. The original work scope involved electrical testing of the generator rotor and stator, along with the removal of the retaining rings to inspect the insulation and blocking under the rings. Upon inspection of the stator, greasing […]

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MD&A 7FH2 Spring Migration Repair

Mechanical Dynamics & Analysis’ (MD&A) experts offer a unique, patented repair process that eliminates the axial migration of slot leaf springs within 7FH2 generator fields.  This repair can also be applied to 324 generator fields. The blockage of the radial ventilation passages results in reduced hydrogen gas cooling flow, which can lead to thermal instabilities […]

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Global Multiyear Major Outages

unit 4 generator field installation

Mechanical Dynamics & Analysis (MD&A) recently performed multiyear outages for a customer on several different units in Colombia. First unit:  This was a major outage and generator test & inspection. In addition, this unit was retrofitted with a new rotor, bearings, and steam path components that required machining, including installing and fitting new nozzles. MD&A […]

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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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Expert Repair of Generator High Voltage Bushings

High Voltage Bushings

Insulated devices known as bushings enable an electrical conductor to pass safely through a grounded conducting barrier. Generator bushings are designed to lead current induced in the stator windings through the pressurized, hydrogen-gas tight, earthed generator housing. A typical bushing consists of a conductor surrounded by insulation, except for the terminal ends. As part of […]

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Gas Turbine Major and Generator Test & Balance

Gas Turbine Major

Mechanical Dynamics and Analysis (MD&A) was contracted after a forced outage to perform a major overhaul on a cogeneration unit’s MS5001PA gas turbine, and to remove, test and inspect the generator field. Because the unit dispatches as baseload and the turbine is a critical asset, MD&A was asked to complete the repair work as quickly […]

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Happy 35th Anniversary!

Mechanical Dynamics & Analysis began in 1982 as a small engineering firm supporting power generation companies with third party consulting services.  It was founded by Jim Lindsey.  Since its inception, MD&A has maintained an entrepreneurial culture and has focused on outstanding customer service.  As a result, now in its 35th year, MD&A has evolved from […]

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