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Pole axial movement
[quote][b]marcus wrote:[/b] The magnetic flux through pole body and rim is predominately DC, so forget magnetic heating as a cause. ...
Posted in: Generators: Other Issues
Saturday, November 26, 2022 07:21 PM
Embedded thermocouples in stator cores
It is not necessary to cut into lamination to measure core temperature though some OEM makes the special thermowells in...
Posted in: Steam Turbines: Thermocouples
Tuesday, November 22, 2022 05:02 PM
Removing seized stud from valve body
[quote][b]MCDM wrote:[/b] Hi, maybe you could try spark erosion; Spark erosion machines can be portable for the access of onsite or...
Posted in: Steam Turbines: Disassembly-Reassembly
Tuesday, November 22, 2022 10:11 AM
Online Monitoring Systems & Older Generators
Thank you for all the responses! A lot to consider. Seems like there's value in online monitoring but...
Posted in: Generators: System Standards & Best Practices
Monday, November 21, 2022 09:10 AM
GSU Changeout, reverification of Phasing
thanks all, great discussion
Posted in: Generators: Other Issues
Monday, November 21, 2022 07:50 AM
GSU Blast Walls
Hello, As previously stated, need more details. Are the metal blast walls grounded? Are they overheating under heavy load? Is the unbalance with...
Posted in: Generators: Other Issues
Friday, November 18, 2022 05:48 PM
Rotor ground alarm and trip - 1350 MW turbo-generator SIEMENS KWU
[quote][b]Larry Batsch wrote:[/b] Andre During your investigation please look at the generator rotor winding to rotor ground issue due to insulation failure...
Posted in: Generators: Cylindrical High-Speed Rotors: Shorted Turns, Grounds, Copper Dusting, Racheting, Crossover Failures
Thursday, November 17, 2022 01:02 PM
Corona Problem in 7A6 genertor
Thanks, Fabrice, for the above recommendation and would like to know whether this has been tried on 7A6 generators earlier...
Posted in: Generators: Other Issues
Wednesday, November 16, 2022 08:31 AM
sincronizing out of phase
fellow members, can anyone offer your experiences involved with swapping out a GSU and what you've done to re-verify phasing?...
Posted in: Generators: Other Issues
Tuesday, November 15, 2022 04:50 PM
Water Cooled Winding - Helium Testing
I also face very similar issue, and again toshiba machine manufacturer in 1992. Coil in leak test in conducted at...
Posted in: Generators: Water Leaks, Crevice Corrosion, Capacitance Mapping
Tuesday, November 15, 2022 11:51 AM
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