Historical incident questions (sorry for the length): My grandfather was killed abt 6 mos after the pic at left was taken (age 26) in a paper factory transformer explosion in July, 1923. It was definitely a closed casket affair after being electrocuted and covered in flaming oil. Most articles just talk abt the death but not much detail on the how it might have happened. I have no knowledge in this area so I thought I'd see abt getting feedback from those who do. He was pretty new to this kind of work with maybe up to 2 yrs max exp w/a local power co & was an insurance salesman before that. Something must have been noticed with this transformer though, for them to call him in. I could see where inexperience could have been the main factor but I'm curious if the transformer might have been right on the edge of losing it no matter what. One article that quotes co execs states that at 9:30am he was "manipulating switches controlling high tension current and his hand slipped, touching the brass". It's the early 1920s and I have no idea what brass might have been "hot" to electrocute him from just a slip but all others mention the size of the transformer, its explosion and burning oil. A diff article states; "Officials say 33,000 volts went through his body when the transformer burst..." and a fire chief in another says "...they found that a giant transformer had been blown to pieces" and the victim had been "virtually baked to death". Any idea on abt what "size" related more to capacity/limits rather than physical (though any ideas would be of interest), this transformer might have been? Any info, ideas, feedback in general would be great. Thx
I appreciate your efforts, very informative for me 👍
Thank you
This is the scariest thing I have ever seen and I will keep my distance from them.
Tq
Sir is only buccholz relay used to trip, or other relay also is used
There are multiple relays for different protection. Oil surge relay is also used for OLTC.
@@ElectroGlobe1 thank you, which is the advanced relay used nowdays
@@vishalkarthik.v7209 Buchholz relay and OSR are used for oil related abnormalities
Differential relay can also be used to detect transform fault
Yes
Sir,even though all these precautions are taken why blast is happened sir? I am curious what went wrong
Ageing and Severe fault may be the reason
Historical incident questions (sorry for the length): My grandfather was killed abt 6 mos after the pic at left was taken (age 26) in a paper factory transformer explosion in July, 1923. It was definitely a closed casket affair after being electrocuted and covered in flaming oil. Most articles just talk abt the death but not much detail on the how it might have happened. I have no knowledge in this area so I thought I'd see abt getting feedback from those who do. He was pretty new to this kind of work with maybe up to 2 yrs max exp w/a local power co & was an insurance salesman before that. Something must have been noticed with this transformer though, for them to call him in. I could see where inexperience could have been the main factor but I'm curious if the transformer might have been right on the edge of losing it no matter what. One article that quotes co execs states that at 9:30am he was "manipulating switches controlling high tension current and his hand slipped, touching the brass". It's the early 1920s and I have no idea what brass might have been "hot" to electrocute him from just a slip but all others mention the size of the transformer, its explosion and burning oil. A diff article states; "Officials say 33,000 volts went through his body when the transformer burst..." and a fire chief in another says "...they found that a giant transformer had been blown to pieces" and the victim had been "virtually baked to death". Any idea on abt what "size" related more to capacity/limits rather than physical (though any ideas would be of interest), this transformer might have been? Any info, ideas, feedback in general would be great. Thx