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Non-scrubbed Air bubbled into SWCS tank
CO2 in the stator water lowers pH and thus increases the solubility of copper. In extreme case, copper corrosion can...
Posted in: Generators: Other Issues
Monday, October 19, 2020 10:07 AM
Side effects of chemical cleaning on conductor
Please refer to our publications in PPChem (PowerPlant Chemistry magazine, 2014/2, 2018/5, 2018/6 and 2019/1.
Posted in: Generators: Water Leaks, Crevice Corrosion, Capacitance Mapping
Monday, October 19, 2020 09:58 AM
7FH2 Cores - Broken and eroded end laminations
FYI - These are stacked, in the factory, with the Turbine End up. There is also a factory call...
Posted in: Generators: Keybar Rattle, Fretting & Looseness of Core to Frame Interface
Monday, October 19, 2020 08:09 AM
Gas Turbine Reverse Power Operation
In late '70 many GT Units were installed for peak service in extented grids. The plants were designed so that...
Posted in: Gas Turbines: Miscellaneous
Saturday, October 17, 2020 12:19 PM
LP blade reweld
Are these steam turbine or gas turbine blades? I would need a bit more information regarding the prior repairs...
Posted in: Steam Turbines: Disassembly-Reassembly
Thursday, October 15, 2020 12:34 PM
Discussion on EDA test
Dear Sir, You can read more information at page #7 this same forum Subject “EDAIII”. This system originated around 1990 from...
Posted in: Generators: Stator Winding AC/DC Hipot, Leakage, Absorption Tests
Wednesday, October 14, 2020 06:13 PM
7FH2 Core Looseness & Fatigue
Wallace, Your post and the comments to it are very interesting. We are involved with a owner right now that has...
Posted in: Generators: Keybar Rattle, Fretting & Looseness of Core to Frame Interface
Wednesday, October 14, 2020 01:09 PM
AVR during motor start
Hi all experts. I have these technical things I would like to clarfy , it bothers me a lot because I...
Posted in: Gas Turbines: Operational Issues
Wednesday, October 14, 2020 06:25 AM
Early removal of steam turbine insulation
For us, removing the top insulation has brought the temperatures closer to even, top-to-bottom. I'm sure that over cooling of...
Posted in: Steam Turbines: Disassembly-Reassembly
Tuesday, October 13, 2020 04:51 PM
Detection of hot joints
Hi Marc, speak of the devil I was recently testing a Fuji Electric machine with those very similar end cap...
Posted in: Generators: Stator Winding Issues & Upgrades
Friday, October 9, 2020 12:53 AM
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