Well, it has been decided to charge for the call. Sometimes we do free bees for clients, even after the warranty period, when there is a prospect of more work in the future.
The transformer vibration, normal in a transformer of this type, is causing some of the dead fronts to rattle on the switchgear. Not much could be done about that. My concern is why is the normal transformer hum from this one louder than the others.
Yes, the braces are supposed to be there. It might be hard to tell in the picture but those coils are about 5ft tall. I don’t know how much they weigh but I am sure it’s a lot. The core frame sits on vibration dampeners and the mounting bolts are loosened slightly per manufacturer instructions. In a seismic event, without the braces, you could have a catastrophe! This facility is designed to survive an 8.5 magnitude earthquake and still be in full operation. That was the slogan during construction. “Built to Survive an 8.5”
