siemens - Public Service Commission

Siemens Generator Workshop
Feb 57,2007
Charlotte NC
Mark Pringle - Director Charlotte Fort Payne Operations
Opening Remarks and Agenda
Power Uprates and retrofit and upgrade capabilities
Tour of Siemens Turbine Generator Service center
Andrew Medla - Director Generator Engineering
Generator Developments and Implications for Operating Fleet
Overview of World Wide Operations and facilities
Computational Tools
3D Finite element analysis of turbine blading, Improved efficiencies and reliability in
severe thermal cycles, load following
Computational Fluid Dynamics, allows for increased cooling less heating, allows for
increased design capabilities, then compared to actual field data results.
New design 2200 MVA 50 Hz, new design technologies and materials directly applicablc
to uprates and upgrades.
0
Objectives - Speed, Dependable Generation, Life Extension, Capacity Increase
Strategy - Fast Rewinds, Airkiquid Cooled upgrades, stacked cote replacements
Core Replacement 18 days
Stator Rewind < 20 days
Rotor Rewind 29 days
Exciter Rewind 28 days
J Strap Change out 15 days
Balancing 20 moves 24 hours
Coil Lead time 9 months minimum prefer one year
Shipping of components requires dedicated rail and at least 5 days on cach cnd.
Performance Plus Seal State of Art Carbon seal technology greatly reduces oil
consumption by a factor 50: 1. Can be used with increased H2 pressure up to 75 psig.
How do we increase MVAK loading capability on existing machines? Additional
windings. Who should pay for upfront design (vendor or industry)?
Mark Pringle - Director Cbarlotte Fort Payne Operations
Generator Factory Services
*
Quality Culture, Manufacturing technologies, Upgradeflprates, Repairs