is that power outage caused by my project ?

Thread Starter

patric44

Joined Jul 16, 2018
4
hi guys

i recentaly was working on building a T.E.A laser and i used a flyback transformer drived by a 555 timer circuit


and the TEA laser somehow worked , but after i adjusted the spark gap and other things i tried to plug it in , then ...
the electricity in the whole block went off ?! i went out and i was smelling a very mild electrical burning smell ?!
then after a 20min or so the power came back .
so my question : is this just a really strange coincidence or my apparatus was the cause of it ?
( maybe the HV capacitor in the TEA made something !!! i don't know ) i can't think of any reason ?
 

dl324

Joined Mar 30, 2015
18,404
Welcome to AAC!
so my question : is this just a really strange coincidence or my apparatus was the cause of it ?
Purely coincidence.

Breakers would have tripped in your power distribution panel before you could have caused an overload on the utility company distribution network.

One of my neighbors once put a tree on the power line and took out power for our neighborhood. That wasn't a coincidence, and the power company was naming names, so we know who it was and that he was cutting down a tree...
 

MaxHeadRoom

Joined Jul 18, 2013
30,712
I VERY much doubt that any high current your device would have caused it, it would never reach the magnitude required to knock out the distribution to your block.
If it had there would be massive evidence in or near the device!:eek:
Max.
 

Thread Starter

patric44

Joined Jul 16, 2018
4
Welcome to AAC!
Purely coincidence.

Breakers would have tripped in your power distribution panel before you could have caused an overload on the utility company distribution network.

One of my neighbors once put a tree on the power line and took out power for our neighborhood. That wasn't a coincidence, and the power company was naming names, so we know who it was and that he was cutting down a tree...
Breakers didn't even flinch lol
should i try that project again , iam afraid next time the FBI or CIA will came after me or something :eek: LOL
 

Thread Starter

patric44

Joined Jul 16, 2018
4
I VERY much doubt that any high current your device would have caused it, it would never reach the magnitude required to knock out the distribution to your block.
If it had there would be massive evidence in or near the device!:eek:
Max.
is there is any chance that the HV capaicitor had short ciruited which produced a momentarly overload or something ?
and what would happen it did ?
 

dl324

Joined Mar 30, 2015
18,404
should i try that project again , iam afraid next time the FBI or CIA will came after me or something :eek: LOL
Methinks you watch too many movies. The FBI or CIA wouldn't be involved unless the power utility reported suspicious activity. You'd think the utility company would contact you if they thought you were drawing so much power that you could shutdown your neighborhood before contacting the FBI... The CIA isn't typically involved in domestic terrorist activity.
 

crutschow

Joined Mar 14, 2008
38,574
I do remember reading that Tesla knocked out power to a part of Colorado Springs with some of his high power experiments.
 

MisterBill2

Joined Jan 23, 2018
27,741
I do remember reading that Tesla knocked out power to a part of Colorado Springs with some of his high power experiments.
Yes indeed!! Tesla did connect some very high powered loads, but they drew many HUNDREDS of amps. And the device in the picture was VERY LARGE indeed, perhaps 20 feet in diameter.
 

strantor

Joined Oct 3, 2010
6,875
I've recently caused brownouts on my street with my 480V power supply project. I have to start it up in sequence or else the neighbors' lights flicker & dim. Just starting the main 30hp motor with transformer and load disconnected draws over 400A from the 240V mains and causes my own lights to dim. I haven't measured the startup current with transformer and load already connected, but apparently it's more than enough to warrant the neighborly complaints.

This is an example of what it takes just to make a dent in the grid. The only reason I'm not tripping breakers is because it's a momentary load on a 125A breaker. It isn't possible to plug something into a wall outlet that kills power to the street. I don't even think could do that with my big power supply. Just a coincidence.
 

Reloadron

Joined Jan 15, 2015
7,893
I do remember reading that Tesla knocked out power to a part of Colorado Springs with some of his high power experiments.
My neighbor's granddaughter managed to take out several square blocks with a few Mylar balloons which got away from her. Grandma took this picture a day before things went south real quick.

Power Line Balloons.png

The upper lines I believe are about 25 KV 3 phase. The lower lines the balloons hung on are about 7 KV 3 phase which feed the residential transformers. Nobody thought much of it when the balloons got tangled. A day later I was in my living room across the street and suddenly we heard popping, like a string of firecrackers followed by a loud bang. Power went out and dogs looked at me like what the heck was that? One of those lines came down arcing and sparking across the road extending to the middle of the road. This was the only time in my life I called 911. Never saw a hot line in the street like that and wondered what happens if someone drives over it. Within minuets I had police and fire for new best friends. My house generator was running fine which amused the police. Grandma told poor little Gianna (age 6) she was going to jail. :)

Apparently Mylar balloons have caused some major blackouts. I can believe that having seen what I saw.

Ron
 

Reloadron

Joined Jan 15, 2015
7,893
I've recently caused brownouts on my street with my 480V power supply project. I have to start it up in sequence or else the neighbors' lights flicker & dim. Just starting the main 30hp motor with transformer and load disconnected draws over 400A from the 240V mains and causes my own lights to dim. I haven't measured the startup current with transformer and load already connected, but apparently it's more than enough to warrant the neighborly complaints.

This is an example of what it takes just to make a dent in the grid. The only reason I'm not tripping breakers is because it's a momentary load on a 125A breaker. It isn't possible to plug something into a wall outlet that kills power to the street. I don't even think could do that with my big power supply. Just a coincidence.
I remember that project, how is it working out?

Ron
 
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