375 MVA Transformer - A quick look and energising

Just a short video showing a large transformer at my work and the sound it makes when energised.

[@mycroft16]

And now we all know exactly what "do not touch this" sounds like.

[@oldtimer2192]

@@fvckyoutubescensorshipandt2718 My man! The sooner all that rubbish is shut down the better off society will be.👍👍👍👍👍👍

[@KokoroKatsura]

been using adblocker since 2OO6

[@hughsgarbagetrucks]

MMMMMMMMMMMMMMMMMMMMMMMMMMMM

[@MrZedblade]

"Low voltage side - 132,000 volts" :)

[@octapc]

MrZedblade yes, my idea of low voltage is one that doesn't hurt.

[@TheTrueFreeStyle]

Well, everything under 1kV is considered "low voltage"

[@Joshie2256]

@@TheTrueFreeStyle Not everywhere. US NEC is 600V max for low voltage, but "low voltage" under limited energy is 30V or less.

[@JBernhard72]

@@Joshie2256 2014/2017 NEC changed to 1000V... www.ecmag.com/section/codes-standards/general-installation-requirements-part-xxxi

[@elliottkrieter4640]

Yea, that is kind of ironic/funny.

[@davidpalmer9780]

Thank you for the very interesting tour with commentary of a place most people would not have the opportunity to see close up like you have shown. It's appreciated.

[@BearsTrains]

No worries David.

[@Anon54387]

@@BearsTrains Walking round on that thing. Yikes. Hope your co-workers are conscientious about lock out tag out procedures. What causes the harmonics? I thought harmonics only occurred when one deviated from a sine wave. How is it that they are damped out?

[@Proud2bmodest]

@@Anon54387 The transformer retains residual magnetism and when powered up the residual magnetism adds to the induced magnetism which causes the core to saturate. When the core saturates, the inductance drops down causing an increase in current at the voltage peaks. This causes the input current sine wave to have sharp peaks and associated harmonics. When the current changes direction so that the induced magnetism is the reverse of the residual magnetism, the residual magnetism is reduced. After some time the residual magnetism is reduced down to zero and the input current becomes a lot cleaner. If the current is at a peak when the transformer breaker is opened, the residual magnetism can be quite high. Ideally the transformer should be switched off when the current is zero, but this is difficult to do when mechanical switches are used. Transformers are run as close to magnetic saturation as possible to keep the cost of the steel core down. Even a small amount of residual magnetism will push the core into saturation. This is expected and breaker won't trip even though the current is substantially higher than the normal operating current. allaboutrozan.wordpress.com/2014/01/01/transformer-inrush-current/

[@user-qp4sg1lb8l]

@@BearsTrains Сбоку в кадр попали выводы третьей обмотки.Скорее всего 35КВ.

[@lordofelectrons4513]

Terrifying amount of power! I once had the opportunity to stand partially inside of a 400 Megawatt alternator located in a major dam on the Columbia river in the US, while it was in full operation. I could see the massive rotating armature and the turbine water control system at work only a meter away the sound and vibrations were A very humbling experience.

[@uzaiyaro]

Now that is bragging rights. My only claim to fame is that the local drivers would let me at the regulator of our electric trains. 16 motors in a six car set, a touch under 3,000 horsepower all up. I was only a kid. Awesome stuff.

[@tcg1_qc]

Nice, I had a similar experience in a hydro power station (not a dam), we were on a tour and they let us go inside a room where you could see the turbine shaft rotating, the turbine was below the floor and the alternator above the ceiling. It was 60°C in there, we couldn't even touch the railings or you'd get burns, it felt like walking inside an oven

[@gilbertotorres8657]

Being around these machines while they’re energized as always made my heart speed up, you can really feel the power.

[@craigroberts1670]

There must be a strict OSHA rule to how long anyone can be around all of this awesome but dangerous equipment. The EMF's are what can be very harmful or is that a myth???

[@proksalevente]

@@craigroberts1670 They don't emit ionizing radiation. EMFs only danger is, if the exposure is high enough, you are basically in a microwave. The thing is, most things don't produce that much EMF. You'd need to climb a really high power radio-transmitting pole and hug the dish on top to maybe get a chance to get burned.

[@inductivelycoupledplasma6207]

@@craigroberts1670 RF fields are dangerous in high intensities (large UHF radio transmitter for instance). Low frequency electric and magnetic fields are harmless

[@patrickcannell2258]

Each power utility has its own operating regulations that complent OSHA.​@@craigroberts1670

[@fightforfreedom5193]

Master electrician here. 33 years experience. Total respect for you high voltage guys.

[@davidsoulsby1102]

It's more dangerous what you do. This stuff is so well looked after and protected it rarely goes wrong. I work with this stuff as well as 230/415v, this EHV is way safer, no deaths in 38 years on EHV, 4 on LV..... take care 👍

[@patrickcannell2258]

​@davidsoulsby1102 and you can hear it! Corona. LV when it bite it is too late. Have experience in both. EHV safer.

[@timc333]

@ 1:25 clunk "oohhh" "Bumped my head" is what got the thumbs up from me , well done , I do the same all the time ... lol .

[@dougmapper3306]

Ahh the sound of hardhat on pipe xD

[@ridefast0]

and we know he didn't bump his head on the live power lines, that would've sounded quite different.

[@Hopeless_and_Forlorn]

If I ever woke up in such a switch yard you would find me clutching the ground and calling for my mommy.

[@andrewmclean834]

My heart rate increased just watching this. I'm pretty sure I wouldn't have time to call mum due to the cardiac arrest.

[@scottcupp8129]

Thank you for this in depth tour of this magnificent piece of machinery. Just amazing!

[@RODALCO2007]

Nice sound of the inrush current. Great video.

[@BearsTrains]

Thanks. It always scares the willies out of me. Very loud and unexpected.

[@farx4070]

If only they made 50MVA inrush resistors that wouldn’t cause global warming, or take a warehouse to house and cool

[@mikeymcmikeface5599]

That's a cool piece of equipment. Thanks for the tour! Nice playground at 2:40. 😋

[@lordofelectrons4513]

Ya! If I had a heavy metal rock band I would sample that sound and use it for an intro to the rawest instrumental piece I could play. I had to listen to it several times it has a wonderful quality to it.

[@johnellison3030]

@@BearsTrains I turned the sound all the way up on my computer, and KZbin cause I couldn't hear anything. Gave me a big start when it came on though. I believe my exact words were "F Me". lol

[@RamiSlicer]

1:51: farting at home 3:44: farting at school

[@rjb125]

xD

[@sweety5565]

Ахахахаххах, лол

[@stadtjer689]

Funnily, I farted when I liked your comment

[@ridefast0]

Thanks for taking the trouble to record and upload this. Its not often that we see 132kV described as low-voltage! That earns a thumbs-up.

[@roberthorwat6747]

The sound at 1:51 is exactly the sound I used to hear on foggy mornings cycling past the power lines on my paper round. 6am and no one around just me and those crackling conductors. 1973. Quite scary when I first heard it but next time it happened I realised this was normal. Ahh memories🙂

[@ralphaverill2001]

I always loved the sound of the inrush current when a transformer is energized. It's about the only outward indication of the massive amounts of energy moving through the conductors. Retired electrician

[@mikeymcmikeface5599]

I like electricity.

[@craigroberts1670]

I wonder what kind of oil they put inside the transformer. It surely must be oil only for this equipment. I've seen youtubes on what happens when a transformer explodes and all that oil comes pouring out and adds fire to fire like a nuke explosion. YeeeeHahhhhhhhh!!!!

[@lordofelectrons4513]

Yes me too, and the smell of Ozone, it smells like victory!

[@ohgoditsjames94]

@@craigroberts1670 It’s usually mineral oil as it has high dielectric strength. Transformer oil used to contain PCB’s (Polychlorinated biphenyl) which is carcinogenic, hence it was relaxed with mineral oil. Even vegetable oil can be used.

[@Sparky19124]

I hate in rush current because it typically clears fuses in my line of work lol

[@KeeperOfPoops]

3:45 that made me jump, but great video, i always loved the humming of electricity from a substation as a kid and i still often take a walk up to the one up the street from me

[@igalaviz]

This is awesome, I've always loved electricity from microcurrent electronics to "Low side is 132KV..." this is always amazing and so interesting... more, need more!!!

[@MicraHakkinen]

2:59 free screwdriver! ;)

[@cerealchild166]

This is amazing!! And thanks for the tour, it was very interesting!!!

[@BruceBoschek]

Whoa! Very interesting and informative video. I cannot imagine standing on that transformer. Thanks very much for sharing this (4 years later).

[@michaelzehrfeld2369]

Thank you for the video - ... was very interesting to see such a transformer working!

[@petersilie3431]

Thank you for that walkthrough! Very interesting.

[@Calbeck]

Love how you add in all the tech specs

[@davida1hiwaaynet]

Thanks for taking the time to show this mighty transformer! Sounds very nice!

[@henryhooker2770]

Being retired from the industry, I enjoy watching these videos of a job I enjoyed and miss. One point I want to make even if it is a small point is lets call it what it is, an Autotransformer. Still enjoyed it.

[@davedave6650]

The wonderful, satisfying sound of pure power.

[@tuxitalk4-tuxipolitixpage772]

Thank you for the captions for those who know squat how this works!❤️Very informative!

[@jackking5567]

That was awesome! Thanks for sharing.

[@zstidsen]

Contrary to popular belief, Corona discharge is NOT the activity that plagues us the morning after Cinco De Mayo.

[@BearsTrains]

I always thought that was Montezumas revenge!

[@whorton4]

I could see that. . . at night!

[@lpt2606]

indeed corona is a virus hahaha

[@pranavprahladan6945]

@@BearsTrains noval corona virus 19.. Ha ha ha

[@Maaar10Avali]

Well 2020 happened unfortunately

[@RODALCO2007]

Thanks for the tour. Great video.

[@anonamouse5917]

Very informative. Thanks for posting this.

[@fritzy381]

great vid dave. very educational and loving it. electrical engineering was always my guilty pleasure.

[@fototoestelletje]

The moment when my pfp is an electrical engineer💀

[@Tommyinoz1971]

Doesn't the transformer have any USB ports so you can charge your phone or something?

[@BearsTrains]

Well, I suppose I could plug a USB adaptor into the power outlet

[@calebchadwick6714]

Worlds fastest charger

[@JWH3]

You could make a glass cap capacitive dropper of you knew what you were doing 😁

[@markgohl2660]

You could tap one from the Auxiliary transformer with a 415 to 240 volt panel transformer and plug a USB charger in that way :)

[@blackcitadel37]

that'd fry even your soul if you tried to do that

[@shyleshsrinivasan5092]

Thanks a lot for this quick tour !

[@folarinfatai8897]

I find this very interesting, thanks for uploading this video

[@markhaas9265]

We buy and sell transformers of this size and larger on the secondary market around the World. These are amazingly engineered devices. We have a station close to us that is 765,000 volts to 345,000 volts at 60HZ. We purchased and sold an 870 MVA that had a stripped and drained shipping weight of nearly 880,000 lb. Great video - thanks for sharing.

[@pmgodfrey]

That. Was. Beautiful. Thanks for taking the time to record and post this!

[@MicheIIePucca]

Wow.. this was a great video. Funny when I saw the video of the transformer being energized, I said to my room mate, "I wouldn't want to be standing there". Later in the video I found out you didn't want to stand there either.

[@maximumnoise78]

Loved the sound of startup

[@luismejias-lmvltda.ingenie1350]

Gran Trabajo, gracias por mostrar lo que hacen, así tambien podemos apreciar lo que otros hacen, tal como nosotros. Felicitaciones. Chile

[@adelmodasilva8164]

Thanks for making the video,great job.

[@BearsTrains]

Thank you Adelmo

[@christopherleubner6633]

I feel empowered. this transformer has a lot of potential...

[@ZilogBob]

Revolting. ⚡

[@Do_the_Dishes]

thx for posting. That sound scared the crap out of me! I had my headphones on too high.

[@gorillaau]

Hahahhahhaha... What a shocker!

[@professional6513]

I was falling asleep while watching this video and then the transformer turned and i nearly jumped out of my skin😅

[@databang]

That was neat, thanks for the tour.

[@phychemnerd]

Love the 50 Hz hum! Feel the power!

[@ThePolandball]

That 50Hz sound brought a tear to my eye. Beautiful.

[@MarcusVLOliveira]

Glad to know I'm not the only one.

[@AcvaristulLenes]

3:45 - the world's most expenesive analog synth.

[@lazerusmfh]

Absolutely terrifying inrush current. More please!

[@777giba]

3:44 - Camera lens focus system was disturbed by the magnetic surge of the inrush current.

[@thefacelessmen2101]

Well spotted.

[@Doeff8]

@Liam Yes, but my guess (MSc power e here) would be the strong magnetic fields of the nearby bus bars feeding the transformer.

[@EphemeralProductions]

You must have REALLY good eyes because i watched it several times and couldn’t see any distortion at all

[@777giba]

@@EphemeralProductions Hi there, try to look on metallic structures on the left side...

[@GrumpyGrebo]

Actually, no. The entire image warps at the start because the camera moves. There isn't a plausible way for magnetic interference to do this. There is a very plausible way for image stabilisation sensors to detect the vibrations passing through the meshed grating floor which it is mounted on and apply stabilisation processing to the image very briefly, before averaging it out and realising that the camera is not actually moving.

[@Phil6219]

A very interesting video, thanks for sharing.

[@Gringomania]

3:43 you can see the picture wabbeling as the magnetic field build up :-o

[@TheRetroShed]

Fabulous video. What an amazing job you have! I love the noise from the corona. We have some 200kV lines near us. Walking under them on a foggy / wet day is amazing!

[@UZBTEXNO_]

like a good work of art

[@srideepprasad]

Great video...High voltages have always fascinated me from my school days.I have always wanted to get close to these monsters..never got the chance..This I guess it the closest I can get

[@yukon4511]

So cool. Thanks for posting!

[@khalsasikhpunjabda]

This is so soothing

[@Sparky19124]

60hz

[@Chris558576]

Thank you for this. Now i will search for big transformer construction & see if i can see the insides :D

[@Lagggerengineering]

Incredible!

[@pfamkuchen]

3:45 always nice to hear, we only have 110kV/21kV Transformators but the sound is still amazing

[@znate6730]

Love that magnetostriction sound 👌

[@charlessmith833]

The engineers that design this stuff are top notch. No room for error at all. One stupid design fault could cause a huge problem. I've seen high tension wires touch in the wind. It is an awesome sight. You cannot face it. You have to hide. The heat is intense. It's like welding without goggles but much worse. Hats off to those who are brave enough to work around such dangerous equipment. I hope they pay them well.

[@feth7747]

Beautiful, this is an absolutly beast, the big transformers of electric arc furnaces are about 150Mwats, and you can see with your own eyes how much power is this when melts the steel, and this transformer has triple of power. Amazing.

[@mybeachshack]

Outstanding presentation. R e s p e c t ! ⚡⚡

[@rick3747]

Nikola Tesla would be proud of his inventions and innovations.

[@johnnydavis8351]

Very intimidating to the uneducated eye 😵... thanks for sharing your video 🤙🤙👍👍

[@lumpyfishgravy]

Great video, thanks! Takes me back to Uni days. We studied an awful lot of heavy electrical theory. 4.44 and all that. Few practicals, unfortunately. But I did a summer internship at an electromagnet factory, which made up for it. Yeah: don't take your wallet down to the shop floor, your bank cards will be wiped! Again, big stuff, lifting up to 30T.

[@DjLeco971]

Very nice and courageous filming, especially when powered on.

[@eardestructioninc.4928]

I recently got to tour a transmission substation and it’s absolutely mind blowing to think about the energy flowing through a facility like that

[@BearsTrains]

yep, when it gets out of control, it makes a big mess

[@hoodwinkedbyanangelmichaelfazi]

@01:04 weight 306 tons, that is amazing. I owned a 30 foot by 50 foot by 5-foot ocean-going self propelled steel barge with a 35-ton crane and that only weighed 188 tons.... Thank you for the upload

[@BearsTrains]

You are quite welcome

[@loliwaifu]

Congrats from Mexico

[@ericleewright4920]

That’s a baby. The 600mva Siemens are the beasts!

[@bobbj77]

Great video

[@mfbfreak]

Awesome video. I would feel pretty scared walking around in a switch yard, though. The amount of power is just otherworldly.

[@wannd]

3:45 you can see the camera image distortion or the inrush current that creates spike of the electromagnetic field. good stuff. Thanks

[@RodrigoM3llo]

I recommend hearing this on subwoofers, it shakes your room just like it shaked the camera

[@MazeFrame]

Very interesting video.

[@BearsTrains]

Thank you

[@b3j8]

Thanks for the added info! Truthfully this as close as I want to get to this stuff! Lol

[@gmc0422]

Pretty fascinating. This must be 50 hz current. I'm a musician and the hum is a lower pitch than the US 60 hz hum.

[@souravsen2981]

Damm those inrush currents are so comforting. And how amazing that those harmonics are trapped using an LC filter or a delta connected xmer I suppose.

[@ALb3RtO1010]

Great video, thank you 😃👍

[@hovermotion]

wow...very intresting...specialist work. now I have an idea of what the transformer does on my huge transformer wagon..... Jim

[@BearsTrains]

Thanks Jim. This unit was delivered in a huge cradle very similar to your wagon except it was for the road and took 5 trucks to move it (3 pull, 2 push)

[@hovermotion]

Bears Trains and Stuff thanks....I found this vid amazing to see.

[@Cemental]

Best power chord ever!

[@craigzeigler194]

Very cool! Thanks.

[@TrueIndie88]

Truly awesome.

[@qsdrfghgujfddyffguff]

what amazing video

[@BearsTrains]

Thank you

[@dennisraymond4339]

Nice video thanks man.

[@joelaranafragoso4661]

Importante y a la vez atemorizante, ahí hay mucha energía, un saludo

[@mima85]

3:45 - Instantly liked and added to my favourites :-D

[@scrambledmandible]

I felt that head bump!

[@leewithey2014]

Excellent!!!

[@ruan2587]

Great video thanks!

[@JamesJohnson-ok1hn]

that was a cool tour. sorry you bumped your head though.. thats one really cool job..thanks for the post..

[@xmlisnotaprotocol]

Fascinating

[@danielhorne6042]

dam that monsters loud haha nearly took my ears out wearing headphones

[@user-uv4xe3cq2y]

500KV switch yard is a good place to stay away from but can put on quite a show!

[@jankadrliak2427]

Respect man

[@TheRottwagChannel]

why is this so fascinating?!?

[@jamesduncan1076]

Cool informative video. I saved the link.

[@christopherleubner6633]

This video has a lot of potential 😲

[@naderhumood1199]

Great main frame. ...

[@guygfm4243]

Thanks for sharing all very interesting as an election