I did this as my first job after leaving school back in the 70's, winding the coils, inserting them, connecting and testing. This has brought back so many great memories.
This highly skilled man has demonstrated beautiful craftsmanship, attention to detail and accurate reconstruction of electrical motor. The motor was restored in perfect working order and properly sealed for many more years of reliable service. May his business prosper!
I was a motor winder for GE Apparatus Service from the late 1970s until the 90s, in Memphis Tennessee. I cross trained in low, medium, and high voltage Switchgear. I was able to travel around the country to other Service shops. I loved the work, meeting people and seeing other parts of the country
One of the best youtube channels. I watched about six videos here so far; each was inspiring, educational and entertaining. Somehow, I watched each video until the last second... I also learned that out there in the so-called Third World countries are first class people; talentted, brilliant, heard-working good people. This is a reminder for all of us to stand for world peace. We should not be manipulated by warmongering jingoist/religious sociopaths. Peace from Arizona...
Electric motor technician from 1999 to 2001 Tried to repair up to 4 poles 40hp. South Korea gave up because the salary for Electric motor repairs was small. You are a great piece
this is developing countries condition, labor cost is low so they use the way to repair. if like usa or japan, the repairman cost much higher than purchase new one.
@@jeffreystroman2811 are you poking to to find racism? I hope not because you missed my point completely. "You people" are the honest hard working ones on this planet.
As an electronics engineer I am completly speechless. I am utterly baffled by this and I bow my head to those dudes who dont just repair, but rebuild this in a garage full of garbage.
Question. What is it that would ever actually fail on a motor like this requiring rewinding? Do the insulating materials break down causing shorts? Does the copper itself breakdown and lose conductivity? Just wondering. Thx
@@flightgamer7849 Not sure, our electromotors have windings with a laquer layer, but this one runs without copper isolation just by isolation by air. I suppose the winding has problems with the contacts or has so much corrosion, that in operation the applied voltage is enough for a breakdown between the layers of copper.
My father had many of these type of electromitirs.extremely powerful and silent.mist of the time the problems occur if the motor overheats.it us very probable the laquer melts and shorting.when.gus motors go out it is always the smell and heat of burning cables.wgen opening the motor you can see the honey colour goes dark.so the wires melted.
@@flightgamer7849 the wires are insulated by a thin laquer layer. The lifetime of the insulation depends on temperature. As a general rule, running the motor 10 degrees celsius hotter, reduces lifetime by half. Run your motor for too long, too hot, and / or have cheap insulation and your motor will burn out. While those people seem pretty skilled at rewinding, we don't know what kind of wires they use. Insulation class H is best, class F is pretty good too, A and B are much cheaper
My greatest respect to the hardworking employee. Good job, but: in the long run it is better if you work on a stable table. Ball bearings don't like street dirt and your back will thank you for it later. In addition, you cover the edges of the rotor housing before levering over the edges with a tool. Later, when you make your soldered connections, you should first remove the layer of lacquer with light acid, then twist and solder the wires. After soldering, it is essential to wash off the flux with spirit (so that it does not corrode any further). And if everything is OK after a functional test (possibly endurance run) there is no harm in giving the outside and the panels a fresh coat of paint. It looks much more elegant and the customer is happy about your masterpiece. Well done ...
You don't need to pre-clean the lacquered wire. The lacquer will burn off immediately and cleanly when soldered, and there's no chance of nicking the magnet wire when removing the lacquer and reducing its current carrying ability.
Dirk, I agree with your points. These guys still did a decent job, but those little things would make it all the better. I would also like to see some level of potting, but I assume thats an option that makes things worse for future rebuilding. The white wrap at the end I believe is cotton webbing. But I'd love to know what the white plastic stuff is thats used to line the passages through the laminations. The piece of hard material right near the rotor seems to be something like phenolic or fiber reinforced bakelite. The originals appear to be fibreglass.
From what I remember during my 90s when you get this redwing wrong you have to remove all those copper coils and rewind again. Such a big punishment for mechanics. It’s satisfying to see this guy’s skills 👍🏽
Good as new. That’s proper craftsmanship. In Europe, we would throw the whole thing away, because it would cost too much to rewind it... Actually what a waste! And it looked very proper in the end! This guy knew what he was doing!
Thanks sir, for making this channel As an undergrad student I highly appreciate your videos for making such cool stuff and practically showing all the mechanism in an orchestrated manner and above all a huge respect for these skilled workers🙏🙏❤️
О чем тут говорить, я работал на заводе радиоприбор слесарем- механиком радиоаппаратуры в 16 цехе все это делали бригадой. Тут один человек. Это необходимость, Смотреть на такой труд, как слушать флейту индии.
@@jhonysweet9682 на самом деле хорошо организованная и слаженная команда сможет куда большем чем 1 человек ...но при условии честного чплоченного труда
@@bradley2427 You obviously didn't get my point. These guys are repairing things with very minimal tools and, yes, some specialty items. But, in the social media world that we live in today.... It would be good advertising if a company gave them a toolbox full of tools to use to display their banner on these videos. I'm sure they don't NEED chit from anyone since they're obviously competent individuals, so me dropping a like and subscribing to their channel, I think, is enough. Thanks for sharing your opinion tho lol pffff
@@flexr642 so instead of telling companies how they should be running, take your own advice and buy them some tools or donate to them. Stupid fucking idea anyway, as they would just sell them off and use the shitty tools they've been using. Fucking dead beat
I must admit I was skeptical at the beginning, for the many times I've said rewinding a stator is an art form unto itself, these gentlemen illustrate that statement by action. Wouldn't be suprized if I've used a motor from them myself, small world and all
I did that as a teenager after school back in Asmara, Eritrea in mid 80s. Brought back memories. It was when knowledge was not only expensive but arcane as well.
Os inventores são Gênios da criação. Vcs são a extensão desses Gênios que nos proporcionam uma verdadeira arte. Parabéns vcs merecem todo nosso reconhecimento.
What's amazing technique you have seen in this video? I'm also a winder at Aram Bagh Karachi, Pakistan and and we have much great teachers and students that can wind these 3 phase motors more beautifully!
Because Pakistan has manufacturing of high end brands in local factories for export. However during quality control a certain amount of product is taken out, which is later available in local markets at very reasonable price (6-10 USD).
