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345 kV Substation Interlocks - Protecting Substation Equipment and YOU

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SpeedFreakLS1

SpeedFreakLS1

Күн бұрын

Пікірлер: 161
@cronic555
@cronic555 3 жыл бұрын
5:58 LPL...Little click out of 5...3 is binding....nice click out of 1
@JohnDoe-ce2wl
@JohnDoe-ce2wl 3 жыл бұрын
redefines "and we have an open"
@ke6gwf
@ke6gwf 3 жыл бұрын
You forgot, "... And a big flash and bang out of phases 1, 2 and 3!"
@michael-gary-scott
@michael-gary-scott 3 жыл бұрын
Hahaha. LPL could cause havoc here
@cronic555
@cronic555 3 жыл бұрын
@@michael-gary-scott That's what she said!!!
@samschannel531
@samschannel531 3 жыл бұрын
B O O M
@jamesf2656
@jamesf2656 3 жыл бұрын
The length and level of explanation is perfect. You’ve got a knack for this
@SurgeWorld
@SurgeWorld 3 жыл бұрын
Really like how you explain the parts names and what they do! Such as corona ring. More videos please. Would be interesting to see you explain reactor banks and capacitors.
@spdfreakls1
@spdfreakls1 3 жыл бұрын
@Ronnie Roo Yeah the grid owners are making us put covers over them to prevent the corona from spreading 😄
@the_townleys
@the_townleys 3 жыл бұрын
Morning, Some of us appreciate exactly what u do.
@the_townleys
@the_townleys 3 жыл бұрын
If you see the greener pastures and decide to head for it, Ya just might end up in greener pastures
@TheYeeterDefeater
@TheYeeterDefeater 3 жыл бұрын
@@the_townleys working on substations is a part of a general electricians scope? im curious because up in canada we have electricians, linesmen, power system techs, instrumentation techs. so I wasnt sure what scope it would fall under.
@the_townleys
@the_townleys 3 жыл бұрын
Hi good morning. There are those that build the buildings.thats a wireman electrician. Then there are those that energize the building itself.those are LINEMAN. Then you have those that ensure those lines stay energized.thats a Substation Electrician. A Substation Electrician maintains all the components inside the Substation so the lines stay energized. The only way to make it safe is to turn it off.😁
@the_townleys
@the_townleys 3 жыл бұрын
In order to maintain a piece of equipment inside the sub most of the time that piece of equipment needs to be taken out of service. If it's a Transformer that needs to be maintained they will take that Transformer out of service install a mobile substation in some cases just to keep the power on for the public
@TheYeeterDefeater
@TheYeeterDefeater 3 жыл бұрын
@@the_townleys thats what i figured, probably going to be my second ticket. here in canada linesman deal with everything from the primary transmission to the primary side of the step down transformer. Got to work around a substation doing a backup generator for it. Got me more interested in taking substation tech as my second ticket in 4-5 years.
@pat90
@pat90 3 жыл бұрын
As a transmission system operator currently in training these videos are awesome. Due to covid they arent letting me into the field. Surge impedance loading (SIL) is the concept of when and why transmission lines will act either capacitive or reactive. During light loading, the lines will produce MVars, and during high loading they consume MVars. Managing system voltage using capacitor banks and reactor banks is something we do constantly in my control room.
@thedowsettdowns3569
@thedowsettdowns3569 3 жыл бұрын
Thanks for the video. One the reasons you want to ground the capacitors is dielectric hystersis. Charge will reappear due charge stored in the dielectric.
@vinzent1992
@vinzent1992 3 жыл бұрын
Thank you a lot for putting out these great videos, I just found your channel recently and I thoroughly enjoy watching and learning from you. I work as an electronics engineer in MEMS (micro-electro-motoric-systems) development, so this is the polar opposite end of the spectrum of what electrical engineering is used for..
@johnkulpowich5260
@johnkulpowich5260 3 жыл бұрын
I'm retired. The electrical industry was a great field to be in you do miss it. Thanks for showing what we do
@ridefast0
@ridefast0 3 жыл бұрын
For an EE major this is super-interesting, thank you and please keep on posting this type of content! Regards from the UK.
@williegillie5712
@williegillie5712 3 жыл бұрын
I’m glad guys like you share your knowledge and experience. I’ve learned so much over the years just watching KZbin videos like yours. Thanks for sharing
@CharlieTechie
@CharlieTechie 3 жыл бұрын
Have been in the commercial electrical/electronics field for over 50 years and have always had an interest in high voltage transmission lines and substations, but have never worked on them. Your videos are fantastic in instruction and understanding their workings. I have often seen the rings (corona rings) on high voltage lines and now I know there purpose. When I was a teenage there were high voltage towers that ran over a large reservoir near our house. You could hear and see the corona discharge on humid summer nights, very strange to hear and watch. Keep sharing and Thanks.
@TheColoradoken
@TheColoradoken 3 жыл бұрын
Good work. Don't be distracted by production values - it's what's coming from yer brain that matters and the content is focused and relevant to each episode. Disclaimer, I've only watched 3. So far.
@bonnyd.5334
@bonnyd.5334 3 жыл бұрын
Thank you for putting together this video. I'm totally fascinated by infrastructure--and am an infrastructure tourist. When I was 5, I lived in New Jersey. My parents gave me a book on New York City infrastructure... and begged my parents to take me to the places listed in the book. Decades later, I'm still fascinated by infrastructure and am still an infrastructure tourist. This is exactly the sort of video I love, the sort I watch time and time again.
@johnnytarponds9292
@johnnytarponds9292 3 жыл бұрын
It’s really sorta neat the see the hairy, scary, grown up versions of what we see on a circuit board.
@Kamel419
@Kamel419 3 жыл бұрын
i'm a software engineer and i absolutely love interlock systems. i typically design the systems i build opposite most people - i put a lot of trips in them so that if conditions are outside of the expected parameters they fail. it's more difficult to build up front, but i think the payoff is well worth it when something goes wrong and rather than continuing to run it shuts off.
@bonnyd.5334
@bonnyd.5334 3 жыл бұрын
Same here. I've written online transaction processing systems, material handling systems and robotics. I thought that last mechanical interlock was truly beautiful, so simple, so elegant and effective. It's easy to design something that's needlessly complex; it's difficult to design something (that hasn't been designed before) that is simple and elegant.
@bassman87
@bassman87 3 жыл бұрын
I've worked on a few windfarms in the Midwest and up in Maine on the comms side so I spend all of my time in the control house and O&M buildings but I was always curious about how each component in the substation works together. Your videos have answered those questions ive had. Thank you!!!
@brianbender7438
@brianbender7438 3 жыл бұрын
Watched all 3 of your videos. Excellent for sure. The information you presented is simple enough for most folks and you didn’t launch into formulas and technospeak. I appreciate it. Thanks.
@PicaDelphon
@PicaDelphon 3 жыл бұрын
Very Well Detailed..Thanks for sharing..
@crimpdaddy3559
@crimpdaddy3559 3 жыл бұрын
This is awesome... subscribed! These places look terrifying to a newbie but the more you know the more you see how well engineered protection and safety is.
@kyleheron38
@kyleheron38 2 жыл бұрын
You’re right, substation protection is very well engineered, but it’s engineered by humans. I’m sure our guy here can tell you about all the engineering errors caught in the commissioning phase. “Trust, but verify” is the motto here.
@TheCarDemotic
@TheCarDemotic 3 жыл бұрын
That seems like a pretty smart mechanism
@MrGibberoni
@MrGibberoni 3 жыл бұрын
Always awesome to see the products that I build every day in use! Seeing how the cap bank works with the rest of the substation is really cool! Thanks for this video.
@DMSparky
@DMSparky 3 жыл бұрын
Your job is extremely cool! I’m pretty jealous not gonna lie!
@Fly0High
@Fly0High 3 жыл бұрын
That interlock is just like the railway semaphores from them 1800s. Flawless.
@brinkme1772
@brinkme1772 3 жыл бұрын
@10:30 looks like someone forgot to tighten down the second u-bolt really enjoy the content, keep it coming!!
@bartomatic
@bartomatic 3 жыл бұрын
Your HV / substation video's are great. Nice pace, nice level of detail, very genuine. Thanks for taking the time to do it, they're very interesting. Keep them coming!
@juliannesermon8057
@juliannesermon8057 3 жыл бұрын
Thank you, this is very interesting. You hear a lot of bad stuff about US power grid, but this site looks like it's very very well engineered and maintained. Subscribed!
@g2g591
@g2g591 3 жыл бұрын
It's probably brand new, for those wind turbines they're just putting in like the one he pointed out in the background
@stevec00ps
@stevec00ps 3 жыл бұрын
A few hundred houses down the road's lights are going on, off, on, off during these demos :D
@olivierconet7995
@olivierconet7995 3 жыл бұрын
Finally, someone give me a name for those corona ring ! Thank you so much ! One question: when you walk under the high voltage powered lines, do you wear a protective outfit ? Do you feel and are you exposed to a dangerous electrical field ?
@spdfreakls1
@spdfreakls1 3 жыл бұрын
No protection. Since the voltage is around us, and not going through us, there is no danger. The crazy amount of substation grounding and rock protect us. If there was 0 grounding and 0 rock and I was grabbing onto a ground rod near the conductors, i would get the crap shocked out of me. These are designed so there is 0 risk. I only feel it if im close to a low conductor and i touch a piece of grounded metal, i get a shock equivalent to a balloon.
@michaelgrimaila3726
@michaelgrimaila3726 3 жыл бұрын
This is really a cool video! It is great to see some of the safety features and the reasoning behind it.
@generatorjohn4537
@generatorjohn4537 3 жыл бұрын
I take it that your substation was still under construction (de-energized) while you were demonstrating the capacitor bank kirk interlock. I personally tested a new capacitor bank (start to finish) for a 115Kv substation. Provided about 43 megavars to the system.
@rascalszx2
@rascalszx2 3 жыл бұрын
Outstanding information, explanation, and video quality. 👍
@TomStorey96
@TomStorey96 3 жыл бұрын
Submarine line terminals also have some neat interlocks going on. They supply power for the repeaters/amplifiers at the bottom of the ocean, can be thousands of volts (DC IIRC), so you don't want to be sticking your hands into something that could burn them off. There's usually a sequence of operations that must be performed in order to release keys that then allow the next set of operations to be performed, eventually leading to a safe system to work on Sometimes there's even operations that require two keys to be turned, so you need a second person and they are spaced far enough apart that one person cannot physically do it themselves.
@KyleRichter23
@KyleRichter23 3 жыл бұрын
This is awesome, and I love that it’s in 4K quality
@davidgray8214
@davidgray8214 3 жыл бұрын
Great video! I wish I had these when I was taking my NICET exams. I did primarily data center work, substations were scary black boxes to me. Keep up the good work!
@BerlietGBC
@BerlietGBC 3 жыл бұрын
Very interesting, specifically the reactors to deal with the Ferranti effect
@TupmaniaTurning
@TupmaniaTurning 3 жыл бұрын
That was really interesting to watch, even though I'm not connected with electrical work in any way (if you'll pardon the pun). I always wondered what those rings were for and now I know. Great video.
@natepeterson34
@natepeterson34 3 жыл бұрын
Another amazing video! Thanks so much
@cdthomas001
@cdthomas001 3 жыл бұрын
Looks like the bottom clamp is finger tight at 10:34, great insight into yard stock.
@spdfreakls1
@spdfreakls1 3 жыл бұрын
Agreed, and the pierce bolts were not installed. Yard not fully completed yet ;)
@enelysionfields2376
@enelysionfields2376 3 жыл бұрын
Great video!
@flaplaya
@flaplaya 3 жыл бұрын
Enormous Conservators. Gorgeous transformers and station.
@hindy101
@hindy101 3 жыл бұрын
Thanks for this, the format and content of your videos are fantastic - thanks for sharing with us.
@markgohl2660
@markgohl2660 3 жыл бұрын
Very interesting. Some good engineering there. When you say primitive on the interlocks, I think maybe that is a good thing. You can at least see how it works not so much with software. Near where I live there is a transition from overhead cables on towers to underground cables. I think it is 132kv and it is quite loud more so when it has been raining. Nice video look forward to the next one :)
@boarattackboar
@boarattackboar 3 жыл бұрын
Loving these vids, I can now have substation chat with my mate whos a line mechanic.
@jontopham2742
@jontopham2742 3 жыл бұрын
sometimes capacitor banks have timed kirk keys that have a mechanical timing actuator before it releases the key, so you dont just ground the capacitor straight away.
@tylerryan5124
@tylerryan5124 3 жыл бұрын
Hey @SpeedFreakLS1. I believe the rings on the arrestors that are underhung on the deadend structure you called corona rings are actually Grading rings to ensure a uniform voltage across the arrestors. A lot of people call those corona rings but typically when they are on an arrestor their function is typically to act as a grading ring. Keep up the great videos though, there are a few people in our office that are really enjoying them!!!!
@spdfreakls1
@spdfreakls1 3 жыл бұрын
You are correct. Its technically both on that specific Hubbell arrestor. The ring around the hardware is the corona ring. The ring around the insulator is the grading ring. 1 piece with 2 functions!
@viniciusENSUAL
@viniciusENSUAL 3 жыл бұрын
thanks for all informations u are giving us! please keep doing this!
@A-Lab
@A-Lab 3 жыл бұрын
The 3rd interlock is like the lineman's version of an escape room
@CLJasonX
@CLJasonX 3 жыл бұрын
Incredible videos. I work for a utility company in Zambia. I would love to come out there and appreciate different systems
@SpeedBoostRC
@SpeedBoostRC 3 жыл бұрын
Cool ABB stuff.
@ilyazhimanov4511
@ilyazhimanov4511 3 жыл бұрын
Thank you for these videos.
@Gaark
@Gaark 3 жыл бұрын
The corona shielding is interesting. Does the corona effect cause much in the way of RF interference with the instrumentation? Edit: I love a physical interlock, primitive or otherwise. I trust them over a software interlock any day.
@jtveg
@jtveg 3 жыл бұрын
I wouldn't call mechanical interlocks as _"primitive",_ but rather a worthwhile and necessary feature based on human fallibility. Idiot proofing is always advantageous. Thanks for sharing. 😉👌🏼
@OldePhart
@OldePhart 3 жыл бұрын
I am really enjoying this series - is there any device you can use to see the corona (except total darkness I suppose)
@spdfreakls1
@spdfreakls1 3 жыл бұрын
Look up COROcam
@RobertSzasz
@RobertSzasz 3 жыл бұрын
Uv sensitive camera with narrow band filters
@TmRCng
@TmRCng 3 жыл бұрын
15:05 "Corona"? Oh no, that's the forbidden word lol
@gaizkitapowers
@gaizkitapowers 3 жыл бұрын
Hey you are awesome! I hope these are fetched for teaching in the University, instead of boring presentations; complementary at least. Isn't scary to you that sound being so close?
@dennisraymond4339
@dennisraymond4339 3 жыл бұрын
Far out man. Good vid.
@timhill9039
@timhill9039 3 жыл бұрын
Fascinating .. thank you !
@jwilliams8320
@jwilliams8320 3 жыл бұрын
I know I'm late, but what about the loose pipe clamp at 10:40 second clamp down on the right. With it being part of an interlock I would think tight would be better.
@daanski82
@daanski82 3 жыл бұрын
At the dead end, you walked under the cables that sounds “life” isn’t that dangerous towalk under there. You hear scary things of people in substations. Btw aaaa that hum in de background lovely.
@sodiumvapor13
@sodiumvapor13 Жыл бұрын
Great vid! What happened to your other vids of the transformers? (The walk-around, nameplate explanation, and the start up vids)
@spdfreakls1
@spdfreakls1 Жыл бұрын
One of the substation owners politely asked me to remove due to some security concerns.
@inothome
@inothome 3 жыл бұрын
Really cool mechanical interlock, do you know who makes it? Was that the switch manufacture or someone else? Much better then Kirk Keys for an instance like that, basically fool proof. Clean looking yard and control room. Enjoying the videos, makes me really miss substation work. Work safe.
@willrobbinson
@willrobbinson 3 жыл бұрын
Grate input of info ,corona is not good causes corrosion, thanx for vid very interesting
@Yamahog
@Yamahog 3 жыл бұрын
I know Aluminum is cheap , just thinking that for the AAC you could go ACC, (copper), and get some better longevity out of the conduit expansion joints, or Did I miss something ....??
@robertnorthrup1914
@robertnorthrup1914 3 жыл бұрын
As a suggestion, when pointing out specific items in your vids try pointing with finger, pencil or pen to the item on the screen. Might help us non-elects with the info.
@mack1915
@mack1915 3 жыл бұрын
Nice vid! I'm not in the power industry but enjoy this stuff anyway. Subbed mate
@tigertiger1699
@tigertiger1699 3 жыл бұрын
Thank you so much, way cool!!
@erwinsummer6164
@erwinsummer6164 3 жыл бұрын
cool stuff ! keep' em coming!
@agnichatian
@agnichatian 3 жыл бұрын
When you say 'reactor', is that an inductor (coil) ?
@Fireship1
@Fireship1 3 жыл бұрын
I’ve worked with SCADA interlocks and Kirk key interlocks. When these systems work as intended they save equipment and lives.
@leozendo3500
@leozendo3500 3 жыл бұрын
If the corona thing is so close to you would it be possible for it to jump an arc through your camera and bad things happen?
@fn0rd-f5o
@fn0rd-f5o Жыл бұрын
heck i'd love to see a 345KV arc sometime. I know it's not good for the sub though, just cool to look at : )
@spdfreakls1
@spdfreakls1 Жыл бұрын
You just reminded I had another video of one. I'll release it shortly. kzbin.info/www/bejne/bYSuh2WYfNCkaJY
@spdfreakls1
@spdfreakls1 7 ай бұрын
kzbin.info/www/bejne/qJ_LoJVvr9aMadksi=cT6R2Wy8IiWgM77p
@adenonco1
@adenonco1 3 жыл бұрын
I love these videos. I want to work in this industry so bad. What happened with the 345kv high-temp transformer you showed last week?
@spdfreakls1
@spdfreakls1 3 жыл бұрын
nothing yet. MFG is coming out to take an oil sample since the DGA analyzer i talked about in this video is not yet hooked up in the other transformer yet. ill do a video after its all fixed. could be days or months.
@roberthousedorfii1743
@roberthousedorfii1743 3 жыл бұрын
I love this type of info. Get a ded cat for your mic!
@TheLightningStalker
@TheLightningStalker 3 жыл бұрын
Have you ever heard of power line RFI causing interference on microwave bands?
@gtsiam
@gtsiam 3 жыл бұрын
I can't find any info on this, but I've been curious: Why are some wires run in pairs for (what I assume is) the same voltage & phase (Say at 16:20, to the right of the poles)? I'm thinking something with surface area, but I'm very unsure about it...
@CarnivalBen
@CarnivalBen 3 жыл бұрын
Does the substation have any kind of lightening protection?
@the_townleys
@the_townleys 3 жыл бұрын
Always. whatever lightning does to something when it strikes it,it does what it does and u fix it😁
@soundseeker63
@soundseeker63 3 жыл бұрын
You can see the surge arresters mounted on top of the transformers - they are the thin insulators with the large hoola hoop shaped things at the top. They are there to protect the transformers for lightning.
@christopherbishop4339
@christopherbishop4339 3 жыл бұрын
Love the videos!
@ke6gwf
@ke6gwf 3 жыл бұрын
I have often noticed the sizzling, but had never heard about the Corona shields on sharp edges and bolts before, I find that fascinating. When I hear an extra noisy pole, I just always assumed it was tracking over the insulator or something, but I guess it could just mean it has a sharp edge. What's the minimum voltage that this is an issue with?
@spdfreakls1
@spdfreakls1 3 жыл бұрын
Typically anything 230kV and over gets the hardware and corona shields, but its all based on the engineering company.
@Garcansdad
@Garcansdad 3 жыл бұрын
Any suggestions? A few months ago a new remotely controlled pole top switch was installed on the next street. It's on a 34.5Kv primary. Ever since then AM radio reception in this area is nothing but static. I called the power company to no avail. Even when I drive my car under that line the radio reception is blocked. What can I do to get that problem corrected? Thanks.
@eswnl1
@eswnl1 3 жыл бұрын
A key - can't go wrong with that because its a physical object you have to physically carry with you. Can you imagine the result closing the circuit while its still grounded?
@85agyoung
@85agyoung Жыл бұрын
Gret Video. Was curious is that nitrogen tank next to the transformer? Seen these transformer look like they have a conservator tank.
@jonka1
@jonka1 3 жыл бұрын
@9:42 Am I correct in thinking that the interlock arm is secured to the shaft by the friction of the clamp?? I have seen clamps loose their original tension over time and in this case I wonder if this has been considered. This would apply to the breaker interlock on the opposite shaft.
@spdfreakls1
@spdfreakls1 3 жыл бұрын
yes, but we have piercing bolts as well (not installed when I filmed). Those piercing bolts eliminate any slipping if bolts go loose. Great observation thought!
@VideoNOLA
@VideoNOLA 3 жыл бұрын
Do you get exposed to a substantial amount of ozone during the course of your typical day, and is there an OSHA limit on that cumulative exposure?
@tooljockey2777
@tooljockey2777 3 жыл бұрын
Morning SpeedFreak, I love this channel, what you do, and how you do it, That's the future of work I want to do. What's your official title and what did you get at school? I am currently a lost university student studying electrical engineering and am trying to find a place in power systems, any advice?
@the_townleys
@the_townleys 3 жыл бұрын
Substation pre-apprentice puts you there🤫😁
@spdfreakls1
@spdfreakls1 3 жыл бұрын
I am a Sr. Project Manager Operations for an electrical company. The future is power, its a recession proof industry. I went through an electrical apprenticeship 2005-2010 called WECA- IEC. I would be nothing without it. The best advice i could give is to learn a trade. It sucks at first making little money but the experience you gain is priceless and can never expire. Everyone needs power, plumbing, steel concrete etc etc. Choose a career that is recession proof.
@tooljockey2777
@tooljockey2777 3 жыл бұрын
@@spdfreakls1 Thanks for replying! It really does mean a lot to me. I'll see if there's a similar program in Ontario, hoping to land a co-op sometime soon! Keep making the videos man, you really are changing lives.
@spdfreakls1
@spdfreakls1 3 жыл бұрын
@@tooljockey2777 Utilities are great as they do have apprenticeships and have great benefits. I promise you will not regret it. Its 5 years of hard work but it will pay off. Don't go 8 months in and leave. Stick with it! Good luck!
@SurgeWorld
@SurgeWorld 3 жыл бұрын
SpeedFreakLS1 100% agree with that statement! Great videos by the way.
@Gazer75
@Gazer75 7 ай бұрын
Why are dry core reactors so common in the US? Here they are almost always the oil filled ones that look like a transformer. They are also usually variable.
@spdfreakls1
@spdfreakls1 7 ай бұрын
Great Question! I believe its cost. Most of them are not made in the US so they must be shipped long distances.
@timcat1004
@timcat1004 3 жыл бұрын
You said this for a wind farm Where is the synchronizing done so this can be tied with the grid?
@aray072989
@aray072989 3 жыл бұрын
Informative
@gacherumburu9958
@gacherumburu9958 3 жыл бұрын
👍.
@W4BIN
@W4BIN 3 жыл бұрын
The wind is tearing up the sound, but I see no blades spinning. Ron W4BIN
@Furiends
@Furiends 3 жыл бұрын
15:00 So that's where it came from! We need to tell the Chinese right now!
@erbenton07
@erbenton07 3 жыл бұрын
Given the high voltage, how much does heavy fog or haevy mist affect things?
@rand0mlyrand0m
@rand0mlyrand0m 3 жыл бұрын
Why do most substations not have roofs?
@ch1p0lte48
@ch1p0lte48 3 жыл бұрын
What is your job title if you don’t mind me asking
@TwoTreesStudio
@TwoTreesStudio 3 жыл бұрын
Are those "reactors" just regular induction coils or do they have some other magic shit going on?
@Moonraker11
@Moonraker11 3 жыл бұрын
Is it possible to have an automatic transfer switch with 3 power inputs?
@spdfreakls1
@spdfreakls1 3 жыл бұрын
Of course!
@pahom2
@pahom2 3 жыл бұрын
5:00 and how often this unit itself needs to be sent for calibration?
@spdfreakls1
@spdfreakls1 3 жыл бұрын
Great question! I'm not sure. Honestly I doubt zero calibration unless a problem pops up. Not saying that's right, just staying that's what I believe
@rubusroo68
@rubusroo68 3 жыл бұрын
is it 60hz ac from the windfarm?
@jonahansen
@jonahansen 3 жыл бұрын
Even with all the interlocks, it still relies on the operator making the decision that it is cool to activate the system. If the operator is wrong for whatever reason, disaster can still strike. I've watched a guy go through a set of questions in a software system that are there to prevent erasing critical system info, and answer them all appropriately because his internal model of what was happening was wrong. The files got erased, and we were in deep doo-doo. A guy could be working on the cap bank, while the other guy thinks he's not, and could go through the whole rigamarole of ungrounding the caps, taking the key over to the other panel, and then activating the system. But it is a lot better than not having them. Moral is, think hard about what you are doing, and check your assumptions!
@computernuts69
@computernuts69 3 жыл бұрын
A+ love the video and the technology but on number 4 interlock on the right side discount , 2ed u bolt look litte lose J's
@johnhershey4010
@johnhershey4010 3 жыл бұрын
Putty cool
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