The first hydrogen cooled generator was put into service by GE in 1937. Many of the design features of those early generators still persist today. TRI Transmission and Bearing Corp. has successfully implemented many upgrades to these old generators.
I was invited to present the benefits of generator upgrades at the most recent EPRI User’s Group meeting in Baltimore. The video here discusses the key points of that presentation.
The rotating element of a Size 270 Dual Circuit Fluid Drive has been inspected, balanced and reassembled.
Dr. Mel has released a Tech Note concerning fluid drives. TRI offers upgrades that can improve the fluid drive reliability. read more…
Each spring and cap are machined to precise tolerances in order to achieve a consistent reaction force across the thrust bearing surface.
A video explaining the advantage of flush cock valves manufactured by TRI Transmission and Bearing Corp. has been published to YouTube.
It is undesirable to have a shaft to rub metal to metal with another machine components…but it happens. When it does, the question often asked is “Can the shaft be fixed?” It is easy enough to bring in an service that does field machining to fix the surface of the shaft, but the heat caused by a rub alters the shaft steel much like the heat affected zone that occurs during welding.
This video explains what happens with crystalline structures in steel when exposed to intense heat.
Below is a photo for a part that rubbed. Over 0.1″ has already been machined away and you can see the hard spot that still remains.
A short animated GIF showing the rotating element of the Size 250 dual circuit fluid drive being installed in the TRI Transmission and Bearing Corp. shop
