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Recommended interference fit for retaining ring
Thank you all for your tips. This is a 15 MW machine with a retrofit of retaining rings. Dimensionally, the...
Posted in: Generators: Retaining Rings
Monday, June 26, 2017 01:54 AM
Hydro Kaplan turbine Standards
Hello fellows, I´m trying to set a complete list of mechanical standards for Kaplan Hydro turbine, I need to include at...
Posted in: Hydraulic Turbines: Kaplan Turbines
Sunday, June 25, 2017 06:07 PM
Rotor Telemetry using Wire Transmission
Thanks for the info Robin. Yes it has brushless exciter. Intention is mainly for monitoring earth fault, continuous trending of...
Posted in: Generators: Cylindrical High-Speed Rotors: Shorted Turns, Grounds, Copper Dusting, Racheting, Crossover Failures
Sunday, June 25, 2017 02:19 PM
Spikes in differential current - 2nd and 3rd harmonic increase
Bill, you didn't say whether the protection is high impedance or not . check, that a wiring of a unused CT...
Posted in: Generators: Other Issues
Sunday, June 25, 2017 12:43 PM
About steel plate test for penstock
Thank you kilpatrik and metalguy for your kind response.
Posted in: Hydraulic Turbines: Gate Mechanical Components
Sunday, June 25, 2017 11:22 AM
Mechanical Over Speed Test During Commissioning
Your second email gives a much better picture of your problem. In my view you should stop further work by...
Posted in: Generators: Mechanical Issues
Saturday, June 24, 2017 05:00 PM
Importance of TIF tests for New Hydro Generators
Thanks to everyone. JimLau, do you know if this change will be applied to ANSI C50.12?
Posted in: Generators: Partial Discharge and Electrical Magnetic Interference
Thursday, June 22, 2017 09:52 AM
Diesel Generator Stator End Winding Damage
Yes. ....Surface tracking from the damaged area to the grading treatment.
Posted in: Generators: Stator Dusting, Greasing, Wedging & Bracing, Foreign Debris & Contamination
Wednesday, June 21, 2017 01:41 AM
Catastrophic Failure of gas turbines
I would say just over 12 months is feasible. I was involved in the repair of a GEC 660MW in...
Posted in: Steam Turbines: Seal Wear
Monday, June 19, 2017 10:27 PM
Preservation of 500 MW generation with N2
N2 will not affect the gaskets and oil like dry air will.
Posted in: Generators: Other Issues
Thursday, June 15, 2017 01:20 PM
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