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rentapal t1_je3wr11 wrote

Heard and saw it too! The light flash was the brightest thing ive ever seen. It illuminated our entire apartment. Our power went out right after. Hoping it comes back by morning.

17

spicychickenandranch t1_je3yepa wrote

Heard and saw it as well! Had an absolute heart attack! Woke me and my bf up and our power went out briefly. Idk how these transformers suddenly blow but it was so loud and bright it felt like a movie for a sec

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cuddlyasacactus t1_je3zgme wrote

After the first explosion, I made the mistake of looking out the window and was absolutely blinded by the second one. Some of my outlets work, some don’t. 😵‍💫

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ChuckBS t1_je4247a wrote

Sounds like a transformer blew up on one of the utility poles. They’re loud as hell when they go and usually produce some impressive fire and sparks

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Uncle-Iroh1 t1_je4b4bk wrote

It looks like a few apartment buildings are out

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fresh__hell OP t1_je4beof wrote

Just heard another one like 15 minutes ago

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drunklynn t1_je4bqbt wrote

Yup my boyfriend and I saw a super bright light and now his apartment has no power. We can now hear all the sirens going off and we are right by Jefferson park.

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masonbrit t1_je4cala wrote

Lights came back on in my part of church hill around 5.10. Traffic lights are out at 21st/broad and 17th/broad

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amy2998 t1_je4e261 wrote

Power still out around 19th/main

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Wahoogirl t1_je4et7e wrote

Power is out on the block near Kahlo’s and Union Market

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J-Colio t1_je4m24j wrote

>Idk how these transformers suddenly blow but it was so loud and bright it felt like a movie for a sec

So transformers are two large coils of wire tightly wrapped around a loop of iron. One coil on one side of the loop is the input high voltage and on the other side of the loop is the low voltage output coil. That's the "transforming" going on - high voltage to low. The reason they can handle such high voltages in such a small space is because they're filled with an insulating oil separating the input from the output. Over time the oil leaks out in various ways. Once there's not enough insulator in between the input and output you get a short circuit, and the high voltage arcs over creating an arc flash. The temperature of an arc flash event is hotter than the surface of the sun iirc, so things like solids can temporarily turn into liquids, gasses, or maybe even plasma.

Tldr: they suddenly blow because the insulating oil leaked out and the high voltage gets to short circuit over to the low voltage side.

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WeetWoo97 t1_je4m9sp wrote

The explosion woke me and my dog up! I’ve seen transformers blow before and they’re LOUD and BRIGHT.

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Charlesinrichmond t1_je4slu4 wrote

I've always wondered what the mechanism was, thanks! also always wondered why Dominion transformers blow up, and I've never heard of such a thing anywhere else I've lived. I figure dominion buys them from Wish

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chexsmix96 t1_je4ucsm wrote

That’s what I thought too. I was reading to see how long it should last and everything I read said 4 hours. I thought that was an exaggeration. Thankfully I’m vegetarian so not too much that would go. I threw cheese and eggs in the freezer quick hoping I can salvage them 😂 Eggs are too expensive for this to happen!

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ScallionSwimming8265 t1_je4ve7c wrote

woke me up and scared the shit out of me, everything went out in the kitchen/living room, but when the thing blew my fish tank light turned on? Poor little guy was scared too

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Charlesinrichmond t1_je5aree wrote

eggs should be fine. Not ideal but they don't really need refrigeration. I wouldn't worry about eggs personally or cheese given what you say.

Use your sense of smell and your best judgment, and err on the side of safety, but it doesn't sound scary considering

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raindeerpie t1_je5bngy wrote

combined with the post about traffic lights being out in shockoe pretty much confirms transformer blew

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