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Decreasing capacitance versus increased A.C. test voltage
Hi Jim, I would be interested in joining this group. We are regularly performing tan delta & PD testing at power...
Posted in: Generators: Other Issues
Sunday, July 23, 2017 09:13 AM
ROTOR RIM LAMINATION
In some of the laminated rotor designs, damper holes are reamed after assembly to insert copper damper bars.Eddy currents effect...
Posted in: Generators: Other Issues
Wednesday, July 19, 2017 07:33 PM
about anchor bolt
Anothers to the list; General Spillway Design - Bureau of Reclamation https://www.usbr.gov/tsc/techreferences/designstandards.../finalds-pdfs/DS14-3.pdf Spillways and Energy Dissipators - nptel nptel.ac.in/courses/105105110/pdf/m4l08.pdf RECOMMENDATIONS FOR STRUCTURAL DESIGN OF RADIAL...
Posted in: Hydraulic Turbines: Gate Mechanical Components
Wednesday, July 19, 2017 06:51 PM
Guide vannes SHEAR PIN standards & composition
Good !! Some more to say, at the Morgan Smith drawing there is a leyend; DO NOT TIGHTEN SCREW AGAINST PIN This...
Posted in: Hydraulic Turbines: Industry Standards & Tolerances
Wednesday, July 19, 2017 01:57 PM
Forces exerted on bearings
Sorry for late comment, but it may be useful to someone: gcbritorjr is right, and the forces can sometimes vary widely...
Posted in: Hydraulic Turbines: Bearing Clearances
Wednesday, July 19, 2017 12:31 PM
Turbo Generator Mutual Impedance
Thanks Rob!
Posted in: Generators: Other Issues
Wednesday, July 19, 2017 10:20 AM
GE 7A6 Airgap Issues
The GE 7A6 air cooled generator was designed with a thick vibration isolation pad along the entire length of the...
Posted in: Generators: Other Issues
Sunday, July 16, 2017 10:31 PM
Impact of Extended Turning Gear Operation
Long time running in barring gear care must be taken in following points 1. Check exiter side all rotating equipments. 2....
Posted in: Generators: Generator Rotor & Exciter Visual Inspectons
Sunday, July 16, 2017 01:46 AM
Recommended interference fit for retaining ring
hi, we recently had retaining rings changed on one of our generators. we used the old drawing and service company...
Posted in: Generators: Retaining Rings
Friday, July 14, 2017 07:39 AM
TIL 1836 - GE 390H
Does anyone have a copy of this TIL they can share? We are considering performing this during next year's outage....
Posted in: Generators: Cylindrical High-Speed Rotors: Shorted Turns, Grounds, Copper Dusting, Racheting, Crossover Failures
Thursday, July 13, 2017 01:11 PM
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