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Exploding transformers

J

johnny botwright

Member
Between the mass animal deaths, the deadly earthquakes and tsunamis in the Pacific rim, the record-setting extreme weather across the US, and the once meandering gulf-stream now shutting down, clearly something is up on the big blue marble this year. And now we may have a new one to add to the list: exploding transformers. google transformers exploding? johnny
 
:lol
johnny botwright said:
Between the mass animal deaths, the deadly earthquakes and tsunamis in the Pacific rim, the record-setting extreme weather across the US, and the once meandering gulf-stream now shutting down, clearly something is up on the big blue marble this year. And now we may have a new one to add to the list: exploding transformers. google transformers exploding? johnny
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and that happens all the time.

given in any hurricane a down power line will do just that. ground out and overload that transformer. seen it happen personally. all that does is cause a line to explode into two and also it can till shut off automatically be hot till such time(hot as in live!).

i work in a municipality that has auto shutoff on those. and fpl has the same. in wilma it got so bad ever minute one or two transformers blew.

move along johnny this isnt new.
 
Go somewhere that gets real wet snow storms (ie heavy snow). The snow will cause them to explode because, unlike rain, snow builds up on the power lines and ices over and this can cause a bridge. Happens to this transformer on my street every single winter, at least once.

or just wait for that one week every summer where the temp doesn't go below 100. Everyone is running their AC and at about 4 or 5 o clock transformers start to go out. We get brown outs all the time because of this. It makes the summers terrible!
 
Yeah, and the 160 tornadoes that went through the US in the recent days has been a little unsettling.

By the way, I would like all to know that when you said "exploding transformers" I thought of Optimus Prime, Starscream, etc.. And THEN I figured it out... xD
 
if you google exploding transformers, you can see the reports, for just the last two weeks, starting in Dallas fort worth, a lot going on, some would say unexplained, the amount locations, there is also a good thread on the subject, with some intresting input, in the todays news forum, David Icke's Official Forums

johnny
 
johnny botwright said:
if you google exploding transformers, you can see the reports, for just the last two weeks, starting in Dallas fort worth, a lot going on, some would say unexplained, the amount locations, there is also a good thread on the subject, with some intresting input, in the todays news forum, David Icke's Official Forums

johnny
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that would be newsworthy but its not. probably as feldew stated. and uh tim tesla coils are very similiar to transformers. rick w used to make tesla coils from transformers at times. though he built a machine that he uses now.

uh johnny all electric grids are interconnected in the u.s. if a large enough brown out occurs in one city , whole states may be affected.
 
if you take time to read the reports, from several different locations , it is raising questions, you will see in the thread near the last page todays news, David Icke's Official Forums there is input from a person from the uk where transformers here in the uk have blown also but in such away , they are asking what has caused them to blow in such away, he works in this line.

again the vidoe of the transformers blowing in dallas fortworth, or this was the official story, some are not convinced, and state why, strange to with such a major event no one lost power, if the event vidoed was transformers blowing.

personaly i find such topics not only newsworthy but also intresting, johnny
 
OK re mystic transformers- A transformer does one thing only it converts a voltage on one side (Primary winding) to an output voltage on the other side (secondary winding) this voltage step up or down is related to the ratio of windings between the primary and secondary windings. When a transformer is designed it is meant to work under load ( power consuming devices) on the secondary winding. This keeps the current flowing through the primary and secondary windings at the recommended or designed value. If the secondary winding is shorted out for some reason and the over current trip devices fail to protect the transformer windings a massive amount of power will circulate throughout the primary and secondary windings, this is because there is nothing but the small amount of resistance in the wires as the load. This could occur if power lines touch each other and the air brake switch or circuit breaker fails to function to break one line.

This massive current flow will cause the wires and internal coils of the transformer to heat up, and the more it heats up the more resistance will be in the wires. The more resistance the greater the heat.
Some big transformers are housed in oil tanks (the larger power distribution ones are anyway) if you heat a big oil tank up way over its designed rating, particularly if its old its gonna blow. These are massive amounts of power.

Think of a fan blow heater is 240 volts or 110 volts in America and other countries and probably about 2400 watts
Alight globe is about 240 v 100 watts.



These transformers run on 11, 33 or 66 thousand volts can be 50 MVA ( 50 million watts) They come bigger than that too.
Imagine shorting that out! BOOM! you would hear it for miles.
 
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Chris said:
OK re mystic transformers- A transformer does one thing only it converts a voltage on one side (Primary winding) to an output voltage on the other side (secondary winding)
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Not true. The transformer 50 feet from my bedroom window will also hum, quite loudly at times. On a summer evening with the window open it can be real annoying.

Johnny, what ever happened to those chinese/koreans massing in Mexico? I did rent the game, I did not like it.
 
Riverwolf said:
Not true. The transformer 50 feet from my bedroom window will also hum, quite loudly at times. On a summer evening with the window open it can be real annoying.

Johnny, what ever happened to those chinese/koreans massing in Mexico? I did rent the game, I did not like it.
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the humming you hear is the ac modulation , that is 60 khz,. what chris describes is what a transformers does.

an ignition coil does the same expect it take high amperages and satures a coil to produce high voltage with little amps to produce the same power. you can reverse the primary and secondary and get a voltage change with power the same

your house cant take 10kv plus of power going in, so a transformers drops it to 120/210vac.

the higher voltage is used to push the power out further in the lines, as substation is a booster station it merely keeps the amps and volts up

ohms law does anyone understand that? e=i/r?

e= volts
i=amps
r=ohms

it takes one volt with one amp of power to go through one ohm of resistance.
 
Riverwolf said:
Not true. The transformer 50 feet from my bedroom window will also hum, quite loudly at times.
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Well that screws up 4 years of trade electrical and 2 of electrical engineering we better rewrite a few textbooks, Il have to tell my teachers transformers do something else besides changing voltages up or down or provide isolation. Transformers with loose windings hum at the frequency of the alternating current passing through them. The ones on the power grid hum at 50 hertz which is 1/50 or every 0.02 seconds the current reverses backwards or forwards and it does it 50 times each second. As the magnetic field collapses in the coils it can cause vibration. that's what you hear the low frequency hum. you can hear it in many transformers particularly old ones where the coils are not as tightly wrapped anymore. The ones up the poles you can hear the noise worse sometimes when they get a bit of moisture on them from the air it sounds like a zapping noise if its a high voltage.

ps resistors hum too sometimes like fry pans and radiator heaters.
 
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chris in america is 60 hz not 50 or 55hz. dont dare plug in an appliance from your country here without the proper adaptions. i have seen the after effects.
 
jasoncran said:
chris in america is 60 hz not 50 or 55hz. dont dare plug in an appliance from your country here without the proper adaptions. i have seen the after effects.
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lol yeah you have 110 volts we have 230 - 250 with 240 volts average. I t would blow it up over double rated appliance voltage plus we use an earthing system and you guys rely on your transformers to be the isolating factor to the ground in your house.


this might help someone who is confused a bout voltage and current terms I was talking about

Electrical theory simplified

think of a wire like your garden hose

Voltage = the pressure of the water
current = the direction and volume of water flowing
power = voltage x current values as a number
frequency= is like the water changing flow direction rapidly and going backwards and forwards in a closed loop. Electricity can only flow in a closed loop of some sort to the source + -

hope that makes it less confusing for those who don't know

electricity is a good thing, the answers aren't confusing you get an expected answer. working out things in the bible is much harder lol, electricity is a pleasant change for a day
 
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Yes, I know guys. Just felt like a funny. Electricity was never hard for me to grasp and my easy understanding of it from wiring houses down to computer repair came natural and made employment easy to find. However to most people, including many that I unsuccessfully tried to teach, electricity is still pure and simple magic.

(that transformer is really not THAT load)
 
lol magic. its funny one simple little thing sometimes can make you look stupid.

i am more knowledge on dc circuits then i am on ac.
 
jasoncran said:
lol magic. its funny one simple little thing sometimes can make you look stupid.

i am more knowledge on dc circuits then i am on ac.
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Even dc is a brain strain sometimes if you can even comprehend that you are doing better than many.

more knowledge if you want.

In our country I am not sure how it works in the states but Australian and European countries the power lines you see in the streets area one way thing for 240 volts The power is coming from the generator winding on one side at the power station while the other side is tied into the earth. Just like a car body takes the negative wire from the battery, so when the power returns from my home to the power station negative it travels underground from the substation where a transformer is to the ground connection of the generator to complete the loop.

That's why power cables spark and jump around on the roads when they fall down its a bit like a wire touching the frame of your car, and how come people get bad electric shocks standing on the ground.


ther you go guys a bit of trivia for ya
 
jasoncran said:
ohms law does anyone understand that? e=i/r?

e= volts
i=amps
r=ohms

it takes one volt with one amp of power to go through one ohm of resistance.
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Sorry Jason, but Ohm's Law is: I (current--rate of flow of electrons--measured in amperes) = V (potential difference, measured in volts) / R (resistance, measure in ohms). Which means that V=IR. :D
 
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