I found your video by accident whilst looking for something else. I'm glad I did! Thanks for the clarity of your explanation. I live in the UK where the rms line voltage is around 230V at 50Hz. The principles behind your video can, however, easily be modified. Thanks again for this most informative video.

@electronicsNmore

9 жыл бұрын

Thanks for watching AJ! Please share my channel with others, and rate Thumbs Up.

Helpful Tip: There is a simple solution to GREATLY reduce core heating if you did not rewind the heavy gauge (120v)primary winding with much more turns of a thinner gauge wire. Place a 20uF to 50uF OIL FILLED run capacitor in series with the 120v winding! The result is lower current draw on the 120v winding, lower output current, and MUCH cooler core. Give it a try!

@Cabal2600

6 жыл бұрын

By the way,What gauge of wire you use for secondary???I have 2 thick types of copper wire.....I cutted my microwave transformer long ago but never been able to accomplish that project,have my primary coil assembly sitting on shelf and core itself somewhere among other things....By watching your transformer I realized that there more room to add another turns to reach 350 volt,350 volt means 350 turns of wire per approximate 25 -30 layers..So one turn consider as 1 volt...If that particular transformer would work than it would be a perfect part for my power supply project...Question is how hot would secondary and primary goes????Would cooling fans resolve some getting hot problem???As for my plasma welder prototype it would be an life saver option to construct proper transformer,this is the only part that slows me down and prevent to construct housing and add all rest of parts..

@danielsrheim5084

5 жыл бұрын

electronicsNmore thanks I’ll try it one day

@dnantis

3 жыл бұрын

My problem is to convert permanently the inner transformer inside that the green\blue Makita sander has from 220volts to 110 volts which is the current which is mostly the current power we use on the western part of the world ! Can it be converted inside to a 110v sander with no external step down gadgets ?? Thabks in advanced

@kreynolds1123

3 жыл бұрын

alternatly, if one leaving the magnetic shunts in, it will limit the ac current.

@joew1865

2 жыл бұрын

My understanding is that the heating is caused by the transformer being saturated which in turn makes it draw much more current. You don't want it saturated. A solution is to add more turns to the primary (120V) winding. I haven't personally tried this, though.

Thanks for replying. In the world of Brushless DC Motors, the laminations are all electrically insulated one from the other. The best situation from a "core losses" perspective is, I believe, thin electrically insulated laminations are best. If the core is electrically solid, I would think that you are trading some of the eddy current losses for ease of assembly. I'm pretty sure that laminated toroid cores are insultated one from another, but I've been wrong before! :) Take care, Nitrous

Excellent Video. Thanks for pointing out the vibration detail before the welding makes total sense. Thanks!

Great video, thanks! I'm just looking to make a 1:1 isolation transformer so this should be fairly straightforward

@electronicsNmore

3 жыл бұрын

Glad I could help! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thank you! kzread.infoplaylists

I have done the transformers with the alternating E and I s they are a pain in the ass to do I agree with u

cool,thank you for the quick replys and for a great video

I needed a higher wattage step down transformer for all my US bought tools to work on 240V mains. Didn't really want to spend money on those Chinese junks. This helps, I can always score some free nonworking microwaves here. Liked & Subscribed!

@electronicsNmore

5 жыл бұрын

The transformer I made works perfectly stepping down 240v to 120v. I have a lot of excellent videos on my channel that cover many different subjects, so be sure to check out my extensive video playlists for other videos of interest to you, rate thumbs up, and share my channel with others. Thank You

I counted the primary on several mots and found that they all have 120 turns , kinda cool seeing as how most homes have 120 volts so a 3 turn secondary gives you 3 volts and so on .

@stephanc7192

Жыл бұрын

I tested a 240V primary and it also gives about 1V per turn. Interesting

Hi Love your vids keep up the good work!!! I'm trying to make an isolating transformer 1-1 It's 2x 240v class 220 mot's, I've cut them and removed both primary windings intact I've also saved the shunts from the middle wasn't sure if they will have to go back in? My plan was to fit the 2 primary's back onto one transformer and weld it up again BUT! is the direction of the windings important as I wanted the 240v in on one side and the 240v out on the opposite side but it's very confusing trying to figure out what way round the windings are running? Any help is much appreciated Cheers from Scotland Chris

Great information! I have one question - how did you keep the welding sparks from getting on the windings and damaging the insulation?

@electronicsNmore

10 жыл бұрын

You shield the windings with a metal plate of other shield, Thanks For Watching! Be sure to share my channel with others, and rate Thumbs Up.

Nice work. I especially like your corn flakes transformer bobbin - very neatly done :) Great hint on derating MOTS too - they will never supply the actual wattage stamped on the transformer (unless you don't want them to last very long) :)

@electronicsNmore

9 жыл бұрын

dash8brj Thank You!

You can salvage the high voltage wiring by unwinding it from the inside out and reuse it in other projects, almost all the way to the outside layer where it is heavily varnished. You can also change the transformer dimentions where you use 1/4 or 1/2 the transformer plates. I am making a PEMF Bob Beck pulser with the 110 V coil as the open air core.

@electronicsNmore

4 жыл бұрын

Many times the wire will have the enamel pulled off as you unwind.

I used to rewind these for 6-10v tube filament supplies, as did a few others in the early 2000s tesla coiling community.

Cool video. If i'm not completely mistaken, the reason that the 120V primary runs rather hot, is that the amount of copper and iron in the transformer is very low, to save on materials and weight. They usually push 700-1000 Watts trough a core like that, but it needs forced air cooling and low duty cycle to survive.

@electronicsNmore

10 жыл бұрын

That is correct. This transformer is not intended for continuous use using the primary winding as it was, but microwave ovens are designed to operate non-stop for well over an hour at full power. The cooling fan in the microwave oven is usually "NEAR" the transformer, but not exactly right next to it. This transformer, as I stated in the video, will be enclosed in a housing with a fan from a microwave oven. In addition, I intend on using the transformer primarily to step down, and when I go from 240v to 120v, there is no heating problem like the heavy gauge primary. Thanks For watching.

@electronicsNmore

10 жыл бұрын

Laharl Krichevskoy Like I said, if you use the transformer to go from 120v to 240V, then using a moderate to heavy load will keep the winding temp cooler, but for going from 240V to 120V, I used 500 watts for a few minutes and the winding did not get hot, only warm. In that case, no fan is needed. I will still be adding a microwave oven fan. I made a desk fan from one(in my video list), and the amount of cooling is incredible. CPU cooler is not necessary. If you are that concerned, then I would suggest you rewind the primary with smaller gauge wire with more turns. The issue would be gone.

These transformers are a gold mine. I have built spot welders battery chargers and I got a 5000 watt industrial microwave oven transformer and made one of the nicest little welder with tapped out puts 35 65 and 90 amps AC and by using surplus industrial forklift battery charger diodes have DC operational welding. I have used these to burn wood it can be done safely at 2000 vac and 600ma there a death trap. I use varnish and everything . I'm glad to see you took it apart the right way ! I always save my secondary windings. I use it on all sort of other projects . Helpful tip after you rewind it you can spray it down real good with varnish and put it in an oven on 160 deg F for 2 hours and BAM just like factory. Just don't tell the wife lol. Also there is a cloth electrical tap you can get at home depot or any other electrical supply it's high temp rated it's normally white it works wonders to cover your cores to prevent rubbing. Also it can be used to tie up wire and varnish soaks in real well. Also don't forget in microwave ovens save the temperature switches there's one for the microwave gun it's to high but the transformer one is 220 deg F use it to protect your new creation ! Nice video 😁👍

if you dont have small have the right gauge uncover varnish wire for said winding can you use wire of the right gauge but with coving on it?like phone line for ex?

Neat! Was lately thinking about making a Prius HV battery pack charger to charge the battery as-found with propper connection for a quicker temp restore, versus the individual cells or all the cells removed and packed in parallel using like a hobby charger. This would definitely be an analog part of the solution as-is with potential for switching to create a more optimal pulsed DC with MCU controlled charge curve. Of course will need current limiting and rectification. That might be a super video to show, both the analog and digital range of methods or at least one method.

Brilliantl, very useful video - thanks for your time and sharing your knowledge

@electronicsNmore

10 жыл бұрын

Your welcome! Please be sure to rate "Thumbs Up", share with others, and check out my other videos as well.

Hi. Is very great information that you provide. As for the Software installation, I having difficulty of installing Transformer Winding Calculator Software. My PC is using WIndows 7 Home Edition 64Bit. Please advise.

How do you get your transformers? I need 4 to do some experiments on. also how do you put the transformers into a series of transformers to get a very high voltage please help.

Hi and thanks for your informative demonstration. Would it be practical to rewind a MOT for use as a high amp DC regulated variable power supply? Could I increase the primary winding to reduce the operating temperature of the core?

@electronicsNmore

9 жыл бұрын

Walter Cengia You would need to use more turns of smaller wire for the primary winding(You can calculate using the software), or take an oil filled RUN capacitor and connect it in series with the HOT wire leading into the primary winding. You will have to experiment using different values. The core temp will drop due to reduced current into the transformer. Output voltage will remain the same, but lower current output. You can also do nothing and place the cooling fan from the microwave oven right next to the transformer inside a housing with one end of the housing left open to draw the air in to keep it cool. Be sure to check out my video playlists, rate Thumbs Up, and Share my channel with others. Thank You!

thank you for explaining everything in detail it helped me understand this so much more

@electronicsNmore

2 жыл бұрын

Glad it was helpful Shane! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share a link to my channel with others on social networking sites. Thank you kzread.infoplaylists

how many turns are there on primary side? and what gauge wire is used?

This is a very well done video. How do you keep from burning the coils when you re-weld the two halves together? Also, it would be nice to see the temperature of the transformer when it is running. Thanks for sharing!

@electronicsNmore

10 жыл бұрын

The welding is not done continuously. The secondary winding is not against the outer part of the core. The primary is very close, but there is a layer of white temp resistant fabric between the primary and the core. The temp of the transformer only gets warm when going from 240 to 120. The other way around, if no load is attached, you can get hot. That is why a moderate load to heavy load is required when going from 120 to 240. This issue will be a thing of the past when I assemble this transformer in a housing with a MOT cooling fan within inches of the core. Thansk For Watching!

Nice stuff man I love your vids :) I've got the same curiosity as dark edge on those shuts and their effect ?

@electronicsNmore

10 жыл бұрын

See reply to Dark Edge. Thanks for watching!

OK so I got a micro hydro turbine puts out between 60 and 80 volts only problem is it puts out like 30 amps, how can I tie it to a mot or anything to get more amps?

Excellent video, thanks for sharing.

@electronicsNmore

10 жыл бұрын

Your welcome.

I was wondering what difference is there if I just take old electric cooktop. Connect 2 end with a wire to burn some red hot wire Is microwave mod any different then electric cook top ? Both is capable to deliver high amp?? Or not?

@robrat5162 New link is up

@sarahszabo4323

8 жыл бұрын

+electronicsNmore I've heard that cutting the core open is a bad idea: true/false if I can weld it back together?

@electronicsNmore

8 жыл бұрын

I would not call it a bad idea, nor would I call it a great idea. If you carefully cut the old shallow weld, and weld it back together all lined up using a similar shallow weld, you will be just fine. You may lose some efficiency, but nothing major. Thanks For Watching!

@NOBOX7

8 жыл бұрын

+Sarah Szabo actualy you dont even have to weld it back together , i currently have such a device and it does not matter because its magnetism thats important not current . im not saying current doesnt flow threw the core but i think its undesired so any thing that can stop eddy currents as they are called is said to be a good thing

@sarahszabo4323

8 жыл бұрын

NOBOX7 Yeah, I welded it together a while back and have been using it since, it's pretty quiet. Seems fine!

Great video. Would you gain any more efficiency if you reversed the placement of the windings? The 120 volt winding would be deeper in the well of the E laminmations. Your comments please?

@electronicsNmore

10 жыл бұрын

Should not make any difference. They are both inside the same core and welded tightly together.

Hi, could you please make a video of welding the two halves back together? I would like to see it before I attempt to weld it myself, but can't seem to find any videos of anyone actually welding the two halves back in place.

Hello, Sir. Do you know where can I buy online the laminations/sheets for the core? Thank you in advance.

@electronicsNmore

6 жыл бұрын

No, better off looking inside scrap electronics.

What if connected two secondaries (identical or different ) around the other cores (not the primary core) ? what would be the power efficiency ? then if you connect the secondaries in series or parallel?

lso those high frequency transformers are also using direct current s well

Great video that is much appreciated! I have some questions if I may: 1. What would happen if the top part (the "I" shaped part of the core which you placed the wood on) is not put on and you run the transformer? 2. What happens if it is still not welded and you place something heavy on the top but not very heavy which allows some vibration? 3. Does it matter whether the primary coil is on top or bottom? 4. Does it matter if the primary coil is placed up side down?

@gman7543

6 ай бұрын

1: the plates would burst out to the sides and the transformer eould not work 2: it would make a ton of sound but would work just fine 3:No. 4:it does not matter if its upside down or not

Best one I’ve seen to build one yet

Do you think 60 vs 50 hz will have that big an influance?

I wander how good it would be to take 2 microwave transformers and stick both 120v coils on one core to make a isolation transformer .??

@electronicsNmore

7 жыл бұрын

hill billy I thought of that already. :-). It would work, but the "No Load" current draw would be high.

@suzesiviter6083

5 жыл бұрын

Yes; I heard 8A is typical for no load.

Impedance matching for any application. If you can isolate the primary winding the find the voltage per turn you are away. I have been taking the cores and winding them as inductors. So many odd transformers on hand .

Wouldn’t both outputs be hot and u would have to tap in the center for neutral?

Yes I know bare wire need be insulated. The problem is romax copper insulation is too thick. Can not get enough turn in the available space for the current I want. So the alternative is to use bare copper wire. And DIY insulation with electrical tape or some sort of heat resistant tape. But I don't know exactly how much insulation is required.

good one, thanks...

If you were going to build another DC Arc welder, would you use the enamel wire or the stranded insulated like on your 52v?

@electronicsNmore

5 жыл бұрын

Hi there. The same wire I used. :-) Thanks for watching! Be sure to look over my extensive video playlists below for other videos of interest to you, and most importantly share my channel with others. kzread.infoplaylists

Excellent video ....I have a question....when you step down from 240 to 120....the 240 are two hot cables of a 120 v each??....or it is the European one cable at 240???

Very nice work the link to calculate the coil not working for I have windows 10 and i try to find a new software but I'm not lucky so fare can you help me to find a other one thanks

Good video, also great for making an isolation 1:1 transformer.

@electronicsNmore

6 жыл бұрын

Doug Everett Thanks for watching Doug! Be sure to check out my video playlists, rate thumbs up, and share.

I rewired a MOT after watching this video about 18 months ago and just picked it up again tonight. I rewired it with insulated awg 10 wire with about 16 or 17 turns. I attached an old lamp cord to the primary inputs and attached my meter to the 2 ends of the 10 gauge wire. When I plugged it in my meter says 14 vac and it is making a buzzing noise...any ideas? It is a YEC 120V 60HZ. Any help would be greatly appreciated! Thx

@electronicsNmore

6 жыл бұрын

A buzzing noise is common.

I don't have welding skills. It is ok to clamp and epoxy the I piece back to the E part?

@TotalFreedomTTT-pk9st

4 ай бұрын

That is what I am doing as of now - I cut some angle iron pieces with slots cut out and made a base with 3/4 ply - tapped some holes for 5/16" rod and put 4 rods outside the core - then put the angle iron on and clamp down - remember also to sand or emery cloth the core faces - I am on here right now to find out how much induction improves by welding it - evidently the tiny gaps between the steel are super critical so maybe even 'lapping' the I unit to the E unit might be advised

How do you know the specs of the iron? What calculations did you use with regards flux saturation?

@electronicsNmore

3 жыл бұрын

The laminations are most likely silicon steel. I relied on the program, which worked fine for me. Thanks for watching

The transformer software installer says it is not compatible with 64 bit versions of windows.... how else can I do the wattage calculations?

@electronicsNmore

5 жыл бұрын

If using Windows 7 professional, ultimate, or enterprise, then you can use Windows XP mode to run older programs.

What awg wire are the thin secondary?

great word man! i am trying to make a transformer so i can get 5 volt DC 70 amp+ after bridge rectifier. is it possible this kind of transformer?

@electronicsNmore

7 жыл бұрын

Yes. Use the calculator shown in the video description area.

Wow! Absolutely one of the best videos on the subject. I have been watching videos on high voltage and transformers for about 2 years now. I want to make something cool out of my pile of scavenged trans, caps, tons of big electric motors, etc. I would love to make a insanely powerful fly back but i cant understand how to make the driver. Anyway i learned more in your one video than i have from all the others. Only thing i wish you explained is what exactly makes the transformers different freqencies. What are the physical aspects of a transf9rmer that dictates it as a 50/60, or 50, etc. Is it the thickness of laminate plates that makes up the core? Anyway i dis mot know about all the stuff you explained about ytansformers, thank you and God bless.

wouldn't the cutting and re-welding damage the insulation of the laminations? If yes, that could increase the eddy current

@electronicsNmore

7 жыл бұрын

To make a custom transformer, you need to do as shown. Just make sure everything is lined up before welding it back.

Yes sir i have a qwestion is it possible to run a 1000watt indor grow system using a transformer to keep my power usage low

@electronicsNmore

9 жыл бұрын

msjakal 1000w is 1000w. It does not matter how you power it, the power consumption will be the same,. Thank You

nice video. I'm wondering about the trade off you are making by welding the laminations together (Not that it wasn't the original trade off made by the manufacturer) I'm not a big transformer guy but know that in BLDC motors the laminations are insulated one from the other to help reduce eddy currents. Is this a problem with welding the core together?

@electronicsNmore

9 жыл бұрын

nitrous dude Hi there. All the laminations are touching, not insulated. The currents flow through each piece. Welding the core back together is fine because you are not going that deep into the core. Thanks For Watching

This is extremely helpful! I have been trying to figure this out for a WHILE now. Is there any way I can do the calculations that the program does without using the program? The program appears to be obsolete :(

@electronicsNmore

7 ай бұрын

You should still be able to use the program

Hey pal i really like your ideas and tell me one thing, can transformer s be used in parallel?

@electronicsNmore

8 жыл бұрын

+ALEXIS LAMARE Hi Alexis. Please refer to my other video below. Be sure to share my channel with others and rate Thumbs Up. Thanks kzread.info/dash/bejne/nHyZuJZpZc3Loqw.html

i want to see you take two transformers and use them as a double (E) and get rid of the i's for use for multable voltages at high amprage are you up for the challange thank you

hey.. we re trying to build a transformer providing 6 kv ac from 220 v. on the secondary side we would like to have the capacitor of 110pf to polarize to keep the current less than1 mA in order to run an ion trapping experiment. seeking for your suggestions.

@electronicsNmore

4 жыл бұрын

Cheaper to buy one from the link below. bit.ly/2VOM2ni

thats pretty cool Idea you have there. there are a lot of uses with this info for this transformer core to low voltage high current applications, cool video.

@electronicsNmore

10 жыл бұрын

Glad you liked it. :-). Use the transformer winding calculator software and make whatever you need.

@mccunecp

10 жыл бұрын

I have about * of these from scrapping. my main goal was to collect as many of the Primary Winding's as I can and hopefully the same size, for a wind turbine build. but now I see other uses for them.

Hi I love your video. I followed your instructions and cut the top off. However I found it is very hard to remove the coils from the transformer. It is very tight and stuck inside the core. I wonder if you have any hints to remove the coils. Thanks again for the wonderful video

@electronicsNmore

4 жыл бұрын

They hammer out. Try a large drill bit to drill away some wire to loosen it up. I never had a problem.

👍thanks for explaining

@electronicsNmore

10 жыл бұрын

Your welcome.

I have a similar size microwave transformer 240V in. Pain is they welded the mounting plate on the side, covering one of the lamination welds. It is actually rated at 1100 watts.

@electronicsNmore

6 жыл бұрын

Grind off the plate spot weld areas.

@Tocsin-Bang

6 жыл бұрын

Thanks that was the plan.

Great information. when are you going to put the transformer calculation link ?

@electronicsNmore

10 жыл бұрын

The link has always been in the "About" section. Thanks For Watching! Be sure to share my channel with others.

Grate job 👍😊. however, I can't see the link .

I have question? What type if wire winding did you put? How did you connect the hot & neutral?

@electronicsNmore

10 жыл бұрын

This transformer had a 14-15ga AL primary winding of 100 turns. I made a secondary winding of 17-18ga AL. When feeding the heavy primary winding 120V, it makes no difference as to where the wires go(Since your only using one transformer, the phase makes no difference going in and out). The output which is 240V, each leg is 120v. When you feed 240V into the secondary, you get a TOTAL of around 120V(60V per leg). If you want 120V(one wire) and a neutral, then you need a secondary winding for 240v with a center tap(zero volts-neutral). For me, a total of 120V stepped down, is just fine. I do not intend on connecting this to my house. This is simply a portable step up/step down down power supply. Thanks For watching. Be sure to check out my video playlists as well.

What type of computer do you run the transformer calculator software?

@electronicsNmore

8 жыл бұрын

+jacob Conner Designed for Windows, but I use it on my Linux computer using Wine.

@aliafghan9081

8 жыл бұрын

+jacob Conner The software is for 32 bit, it also not worked for me cox my pc is 64bit

60 volts 42hz input,primery,,,how much can i do on secondary ,,,need help,,step up volts power,

@electronicsNmore

7 жыл бұрын

Use the software.

When you stepped down the 240v to 120v....did you just plug it in the reverse direction? (240v secondary coils to outlet & 120v primary coils as output)

@electronicsNmore

8 жыл бұрын

Hi there. You supply 240V to the winding I made to replace the 2KV winding, and you get 120V out of the other winding..

@yevettexoxo4335

8 жыл бұрын

Ok :D thanks :D

I watched your video and cut the secondary winding hammer it out. Took me a long long time. Because I don't have grinder or welder to put it back. Next is to wind thicker bare copper wire. I bought some ground bare wire. Would like to tripple or quad the ground wire for a thicker copper cross section area. What term do I search for the winding calculator? How would you insulate bare copper wire? And how think insulation need be to not conduct electricity?

@electronicsNmore

5 жыл бұрын

NO! You don't use bare wire! You use enamel covered wire(Magnet Wire).

i have a 230 volt 60hz 5.7 amps class B electric motor water pump, and i wanted to use your tutorial here to alter my 420v 60hz oap microwave transformer to power the motor from a wall outlet. Is the transofrmer all i need or will i need a capacitor in between? i was under the impression you should never run a transformer (step up or down) directly from a wall socket. thank you for any advice your willing to give. James

@electronicsNmore

10 жыл бұрын

When you plug in a power adapter into a wall receptacle, you are most likely plugging in a power transformer. You need to measure the core area of the transformer, then enter the primary winding supply voltage as 120V, Then enter the secondary winding output as 230V / 5700mA. If the core area is large enough, you will get the exact wire you need, and turns. No capacitor! Thanks For Watching!

does that noise you mention will affect my audio amplifier running at 110V ?. Im trying to run my amplifier with this transformer because the grid supply is 220V

@electronicsNmore

7 жыл бұрын

What noise? Been a while since I made this video.

@RAGGALOOP

7 жыл бұрын

text on the top at 11:27

Hello and i got 1 question and i hope you can aswer it I have a 35 amp pyramid phase lll power supply and it stop working somewhat it has voltage but no current and the 1 thing that i notice is that the transformer bottom secondary only has 4.8 on each outer leg or 9.6 on both legs does that seem right to you? And thanks for the great channel :-)

@electronicsNmore

9 жыл бұрын

I have no idea what transformer you have. 3 phase delta? You need to test each winding. Thank You!

I noticed the rusty laminates...I have a choke in a guitar amp, and it was in a sorry state, so I cleaned all the laminates individually, but they all had a thin layer of laquer or varnish on. Surely I need to replace that before reassembling, right? I thought the plates were supposed to be separated or they'd just kinda act like one lump and they'd get hotter? But I've been Googling for like an hour and can't seem to find anything about it. I think the whole belief that they need to be separated, comes from having seen what looks like laquer between the plates of that one choke. I either made a bunch of assumptions from there, that warped in my mind into actual vague memories of something I once read, or a fragment of a dream ended up in the wrong place. I dunno.

What type of welding do you use at transformer cores stick or flux core welding ?

@electronicsNmore

3 жыл бұрын

Stick

@Telectronics

3 жыл бұрын

Ok that is cheap to do then ! I wanted to start with welding and friends told me stick would be the cheapest and most economical way for home use ! Thank you for your fast reply

Would be nice t see how you cut, solder, and the more important how you take out the coils... i have tried this before and was impossible without damage the coils. how you did these steps? thanks

@electronicsNmore

8 жыл бұрын

Hello. You CUT the weld using a cut-off wheel, hacksaw, or grind it away. I have another video showing how to take one apart. You weld the core back, NOT solder it. Thanks!

@IdelcoEM

8 жыл бұрын

cutting the core is easy. I have got problems to take out the coils. They are to tight. how have you done it?

@electronicsNmore

8 жыл бұрын

Very carefully pry the winding out. Some can be troublesome, others easy.

@IdelcoEM

8 жыл бұрын

ok thanks!

very educational, thank u

@electronicsNmore

9 жыл бұрын

Your welcome Thomas. Please share my channel and rate Thumbs Up. Thanks!

How do you guys manage to remove coils intact? Every transformer I dismantled were all stuck for keeps by some sort of resin or whatever.

@electronicsNmore

7 жыл бұрын

Sometimes the enamel coating acts like a glue.

@GGUU03

7 жыл бұрын

Use thinner, just a few drops.

dear i need farmulla of transformer wainding according to plastec core size and i need to know that how much turn requerd for 220 volt

@electronicsNmore

8 жыл бұрын

You need to use the software shown in the video description area. Thank you

when a current from a solar panel is pulsed (turned on and off), on a transformer , you get A.C. All inverters do is pulse small transformers that step up current into another larger transformer. The larger the transformer , the more stronger the magnetic field (electric field) becomes. The long length of wire will increase voltage and magnet strength. The diameter of the wire determines the amplitude. Go thru your house and write down how much volts and amps you use on each item. This is your Total max power consumption when all are working at the same time. Remember , you don,t use all these items at once and some of them (like the refrigerator) turn on by themselves. Add the totals of volts., then add the totals of amps. This is the numbers you need to know when making your own transformer to power your home on solar power. Remember you need a (Properly placed ground) not attached to transformer output. This is an iron pipe driven into the ground 3 feet or more with a thick diameter wire attached to it on top, this is your positive. A wire coming off of transformer (the white wire) or neutral wire. (center tap wire) this is the wire that switches poles. The Black wire is the Negative. Use green for ground, black for negative and white for neutral when you make your own transformer, so don,t get confused and learn how to make a transformer. Larger transformers have higher magnetic strengths in the cores. The higher the core strength (magnet strength) in the transformer (when puled) , the higher the output. Do not use battery positive as ground. Use the earth ground, for ground. output wires are the wires comming off of the end transformer and earth ground. Use these wires to power your home. EXAMPLE: , (TRY) the use of a 10 gauge magnet wire primary with about 600 turns and secondary of even larger wire, 12 to 20 turns connected to a 12 volt power source that is pulsed into this transformer. The makeup of your transformer may be different because we all don,t use the same amounts of electricity. I don,t know if anyone makes an iron core this large or not. You may have to make the plates yourself. EXAMPLE: IF your house uses 8,000 watts. You need a transformer (when pulsed) that puts out 400 volts with 20 amps to equal 8,000 watts. 10 gauge wire wrapped 425 turns primary and you will have to work on the secondary wraps to get the right amperage correct. See transformer chart.

Hi Does this approach work for DC as well? Could a transformer be made for 24v to 12v step down? And does the calculator software apply to DC power? Thanks by the way. Love the recycling.

@electronicsNmore

9 жыл бұрын

Nels Wight DC cannot be transformed unless it is pulsed. Alternating Current is required. Thanks For Watching!

@jessvagnar4957

9 жыл бұрын

Nels Wight DC power can be controlled by the pulses previously mentioned. What you use is a speed controller/motor controller and it estimates the voltage, so for example 24V in would be changed to 12V out by rapidly turning the power on and off half the time.

@Danielallanz

Жыл бұрын

Your better off doing this in AC then use rectification circuit after it to get you DC..

Where did you get the enameled wire? I looked on Amazon for some and saw many spools of it for pretty cheap. They are all different lengths and don't know how many feet to get. Would 200 feet be enough. I am planning on making a 120 to 240/277 transformer

@electronicsNmore

6 жыл бұрын

Use the software provided. I would think 200 feet would work.

@joemancino9049

6 жыл бұрын

electronicsNmore thank you very much. I have a ballast and a flyback setup for a high voltage power supply. I got the ballast at a local flea market and it is commercial and is 277. I also needed 240 volts at 2 amps in the garage and didn't want to run another circuit for it, so I figured id use one transformer for two purposes. Again, thank you for making this video and replying so fast. :)

Did you put in a receptacle with its own breaker? I'm wanting to play around with this but am a little worried to get started! Even though I'm an EE I still make mistakes haha. Also, how tight and neat do the winding need to be? From the looks of yours, you just rapped it by hand unless I missed something you said. Nice video...

@electronicsNmore

9 жыл бұрын

Austin Butler Hi Austin. We all make mistakes. If you are worried, use a GFCI receptacle when you experiment. A tight winding is more efficient, and less likely to vibrate/make noise. Thanks For Watching!

Very slick!

@electronicsNmore

9 жыл бұрын

:-) Thanks.

So if you had a plasma table you could get silicon steel and cut your own plates, looks like they just ran a tig torch down the sides with out filler

dear sir when i was removing secondary winding of mot for spot welder i damaged the primary winding of mot,😂 could you tell me how many turns and layers required in primary winding 220v i canot find answer of this on internet plz reply

Good day! Thanks for sharing this video. I would to ask for help.I want to design a control transformer (Step down) which has a 240/480 primary and 120 / 240 secondary. Can you please teach me how to find the exact turns for this design.same with the wire size to be used for primary and secondary.

@electronicsNmore

7 жыл бұрын

You need to use the program in the video description area. Thanks for watching!

@ppcdarrellolucero1420

7 жыл бұрын

Thanks for the idea.Godbless

you are awesome, thank you very much

@electronicsNmore

9 жыл бұрын

Thanks For Watching!

Exactly what i want to do.

@darwinspirithawkwhitt4847

11 ай бұрын

Please be careful and never touch the transformer if it’s plugged into outlets ! It will make you un-alive ☠️ and anyo standing next to you as well ! 2500 + - is nothing to take lightly. But if your careful it’s a-lot of fun and entertaining! God bless

Great, i have a welder 240 v. But do not have 240 outlets, that transformer could help me

@electronicsNmore

3 жыл бұрын

Watch my latest video, the unit I show is ideal.

Transformer windage software not works with windows 64 bit version...

What would happen if you place next primary core instead secondary fine wire??Is voltage would be different at secondary when wire gauge is larger??

@electronicsNmore

6 жыл бұрын

Using the same primary winding for the new secondary winding would result in no voltage output change. You'd end up with an isolation transformer. Thanks for watching!

@Cabal2600

6 жыл бұрын

How can I make output voltage 350 volt and 5 amperes from 2 transformers???I read before a topic one guy describing making higher voltage output from 2 identical transformers,those transformers was low voltage,how about high voltage instead???I don't know what types of transformers to use to gain 350 volt and 5 amperes current....Is it possible to make winding by using 2 C core's to create specific transformer I need???Where I can buy not expansive C core's for transformer????I had diagram says core's specs is 40x80x200,I not too sure where to find those 2 core's that reassemble's that specific requirmant...Been sitting duck's with that transformer project by 2 long years now and still no luck,there is step up transformers out there and I even have 2 but it not have enough power to meet my project construction..I need transformer that have primary 120 volt,secondary 350 volt and 5 amperes current and third core low voltage 22 volt and 0.5 amperes....Seems I have no choice but to wind coil's myself but I need C core's for that completion and proper thickness of C core wall.....I working on plasma welder prototype,by now you might heard about MUltiplaz 3500 machine and you know how it works maybe..Well,Multiplaz company have good quality advertisement machines but when you buy them is like a cat in the bag without any promises...Multiplaz 3500 based on original Russian design,however it should be more likely Multiplaz 350 because it operate on 350 volt output not 200 volt and 2.3 amperes..I had constructed by myself thermo regulating board that actutate cooling fans for power supply,the 22 volt power connects to thermal regulating board while there is exit control realy that activate 2 cooling fans for transformer mostly,there is another 2 wires that locks the circuitry by placing thermistor that senses high temperature...I had constructed torch myself certain ways that it uses standart Multiplaz 3500 accessories,I stopped with torch further completion science transformer unavailable,I also made bases for power supply housing but never rushed to further assembly...The plasma cutter/welder save you time and money on argon,arc welder electrodes,oxygen and acecylene gas ton's of money...The plasma torch works on gas or liquid,however special pressure regulator required for torch inlet because higher pressure would destroy evaporator assembly by simply braking quartz glass tube that insulates torch cathode assembly from anode base....Air might work as standart plasma aplications,however if you are electrician or physicist you know by now that air is bad electrical conductor and would create certain power drops unlike water or alchohol,helium gas could also be used as alternative...The idea is that special moisture observing material located in torch body,when water or alchohol poured in it would be observed,by actuating high voltage arc liquid or gas become diatomised and become plasma beam...Unlike oxy acecylene torch plasma beam not burn hand from distance,however special guard requires to prevent getting severely burned to crisp...By burn from oxy acecylene is one story,by burn from plasma stream is much much worst,we talking about 8000 by Celsius and that near surface of sun..This torch can weld hard to melt metals like Tungsten,Molybdenium and Titanium along with their alloy's....A simple tool that can end era of old outdated welding and torch cutting machines for good...Over some more time it could be further simplified and become hand held simple device..We had been suffer from technology insufficiency far too long,it is time to develop something new and far more affective methods of welding...For welding it requires secondary power source to electrify weldable cache,unlike arc,mig and tig welders the clamp nolonger a ground,it is positive current or hot clamp so call,the filling wire is grounded instead to avoid been shocked,the filling rod hold about 1/4 away from part that been weld to prevent arcing and shortage of machine while torch melts the wire and creating smooth cache.before actual melt of filling wire 2 weldable components could be fuse welded or held together before welding..As you might or may not know Plasma welding machine operating only at DC current which requires rectifier bridge after transformer output while capacitor smooths the power drop...The voltage adjustable by potentionmeter from 50 to full 350 volt range,high voltage multimeter also attached to output line's of primary and secondary power line's for easy voltage calibration...

@Cabal2600

6 жыл бұрын

Hello,I not sure if you get my previous messages through....Anyway,I looking to buy an transformer C core 40x80x200,I need specific step up transformer from 120 to 350 volt and 5 amps secondary current...By watching diagram it says materials must be exact,I also noticed that particular transformer become weight like 40 something pounds which would consider heavy for power supply...I already have 2 transformers one rated 220 volt secondary another 245 secondary,is there is any other ways to boost voltage at secondary output of the transformer??Some specialists say I need add more coils by winding of secondary but it is a nogo option science there is no room....First I was thinking to add some type of induction coils but other electrical engineers says it not going to change anything rather than cost voltage reduction....I have another option,By adding so called inductor or bipolar transistor,not sure if this can add more voltage but in theory it work like a water valve to boost more voltage float..Modern welding machines is now very light weighted and it says they use inverters which means same bipolar transistor...I wonder if that same type of bipolar transistor can salvage my problem with voltage limitation???If so than particular transistor cost less amount of money rather than construct new transformer from scratch....I would like to know what you think about it science you seems an electrical specialist..

What if you just cut the coil you're taking out, then feed in the new wire, without cutting the core?

@electronicsNmore

7 жыл бұрын

I do that when making my 52VDC stick welder(I have a video) or 12V lead acid battery charger.

Hello,can u replicate floyd sweet VTA solid state?

Did you just get your wire from an old motor or another transformer or did you buy a spool of it?

@electronicsNmore

6 жыл бұрын

I had 20ga enamel wire laying around.

i am trying to get around 60-90kv. i have a microwave transformer. i think that a cockroft walton multiplier wont work because it needs too many stages. does anyone have any suggestions please? i also have a flyback transformer, but it outputs dc (i cant remove the rectifier circuit from it so i cant use it, i dont think). any ideas would be really really appreciated!

@TotalFreedomTTT-pk9st

4 ай бұрын

Well - think about running some in series - 4 Mots in series would give you 8000 volts - but then everything insulative starts to break down - you are in big boy land already with MOT"s but now you are in stuff jumping out to say hello from a distance - be careful - I think also look into high frequency Tesla coil stuff - because the frequency is high the skin depth penetration is super lower meaning the current does not travel up the arm through the heart - and kill you... as easily

Am I correct in thinking that in step down transformers that the max amp output is proportional to the ratio between the primary and secondary. For example, lets say you have a 2:1 step down and don't want your primary to go beyond 5A @120V. The voltage on the secondary would be 60V. Would the max potential (assuming the core and wire could handle it) amps be 10A?

@electronicsNmore

7 жыл бұрын

Yes. 5A @120v is 600W, and 10A @60V is 600W.

@wartoc3708

7 жыл бұрын

Thank you. Just wanted to confirm it while the marbles are rolling around in the brain.