I cleaned up after one in the 90’s that someone had filled to the brim with cooling oil shortly before a heat wave hit in the Bay Area. All of the access port bolts sheared at once in the failure, i shuddered to think of how one would have ended in that gush of fluid, turkey frier death!
Cooking oil?
Deus Mio!
I hope that idiot was prosecuted and jailed.
Cooking oil???
Wow - that’s a failure waiting to happen.
Very lucky that the access port blew. Was there a fire?
I recall the story about a transformer that overheated and ruptured, with personnel in the substation working on the tap changer on the other transformer. They were, fortunately, on the opposite side of the second transformer and shielded from the hot oil that spewed out.
And get this - the reason it blew is that after a corporate merger, the management decided that over temperature tripping was not useful on distribution substations so they disabled that function. In other words, the transformer should have tripped off line prior to the point of failure, but that level of protection was deemed unnecessary by the new management team.
A very costly mistake - took about a day to set up the mobile transformer to feed the customer load - there were insufficient ties to pick up all the load from other sources. Needless to day, changes have since been made.