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Dark Knight
Silent Guardian
That was Ives Substation in South Florida. The fault was inside the transformer. The F-Switch at the high side had a burnt trip coil and did not operate. As a result it kept feeding the fault inside the transformer.
That event brought a revision to FPL's schemes and then a Trip Circuit Monitor modification was created. I did that modification several times and actually it paid off twice on my watch.
Nice find JR. It is one of my favorites.
Enginnneeer
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+2 JR! very cool...and that happened all because of a bad trip coil.
Dark Knight
Silent Guardian
Yep. I had the privilege of working for an engineer that was involved in the investigation. I even had the video in my flash card without knowing all the details. I showed it to him once and he told me: "That was Ives Sub and it happened because....." and gave me the whole explanation.
Wolverine
Uncanny Pompadour
Oops, youtube blocked by the Corpornfilter, but I think I saw this one recently. The power industry is kind of like going to a NASCAR race: you hope nothing happens, but secretly enjoy watching when something does go pop (as long as no one gets hurt.)
We had a peach of a XFMR fire in Downtown Atlanta many years back. Damn squirrel hit the bank one too many times and she failed. State Guv was in session at the time and it dropped the capital building, then dumped flaming oil down the street. That's bad PR. Rosie says that steel doesn't burn but apparently she's never seen a transformer failure.
Say Bio, just curious, what's an F-switch? That's not in my lexicon but I bet I know it by a different name.
We had a peach of a XFMR fire in Downtown Atlanta many years back. Damn squirrel hit the bank one too many times and she failed. State Guv was in session at the time and it dropped the capital building, then dumped flaming oil down the street. That's bad PR. Rosie says that steel doesn't burn but apparently she's never seen a transformer failure.
Say Bio, just curious, what's an F-switch? That's not in my lexicon but I bet I know it by a different name.
Dark Knight
Silent Guardian
That is just a local denomination to the disconective switches the company I used to work had. The SF6 breakers were the top of the line, then the F-Switch( Usually with SF6 bottles to take care of the arc and MOD), G-Swilth and L-Switch(these ones for distirbution). I am sure you have those on your system too but know name them differently.
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