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30 kVA Induction Heater
Hello ...... my dear friends extreme need and schematic circut this Please if anyone's got the induction furnace Send me anymore<email@example.com>
Do you have a ballpark estimate of how much the total bill of materials costs? I don't need an exact number.
I have approximately ten toshiba MG200q2ys40 half bridge igbt modules 1500 volt 200 amp for $75 a piece if anyones interested. email me Andrewboerder@gmail.com
Good day I am interested with your estimated induction heater so I hope you send me the schematic circuit Thanks a lot - Kennany
All the schematics please! firstname.lastname@example.org - bartman27
hi can I get circuit schematic? email@example.com .thank you
HI, can I get circuit schematic? My email is firstname.lastname@example.org you
HI, can I get circuit schematic? my email id is email@example.com you
By the way, I would have another question if you don't mind...maybe you have an idea.I saw a comment from lavila540 on this page who ordered the following ferrite cores for his induction heater:http://www.mag-inc.com/company/news/new-4-inch--ko...But I would aim for those cores (with the P material):http://www.mag-inc.com/home/Advanced-Search-Result...where the inductance and permeability are much higher. But in the first case they call it the "Kool Mu Permeability"...so is there a difference with a "normal permeability"?! I am a bit confused...What would be the most important characteristics to look at?Thanks
Hello lavila540,Have you finished your induction heater? Does it work well?I was wondering why you chose these ferrite cores? Is it working well with these ones (no heating)? What is the most important characteristics to look at?Do you think these ferrite cores might work as well:http://www.mag-inc.com/home/Advanced-Search-Result...I'm aiming for the P material. But comparing yours and these ones, the permeability and the inductance are much different...I am confused...
Greetings,Is it possible to get the schematics firstname.lastname@example.orgThanks
If possible, I would like receive schematic diagramms by my e-mail.FYR, e-mai address is email@example.comThanks
i want document. you can send me? please...firstname.lastname@example.org
Magnetic losses occur more with smaller toroids because magnetic saturation occurs faster with a smaller amount of iron
Where is your scmatic? I want to build a very small one
hello need to circuit diagram to progect 30 kVA Induction Heater
I'm wrong-1,800,000 VAR=1,800KVAR.If I'm getting 400 amps to the work head than the tank circuit should have unreal current in it,I can't even calculate it!
I'm building my system around 4 600 amp Powerex's and BG1A gate drivers.I have a 16 tap 800KVAR workhead.My main tank capacitor is 15uf at 6kv,300amp oil filled capacitor rated at 1,800,000KVAR,weighs about 30 pounds! I am driving the inverter with a 130 vdc at 400 amp military grage generator and a 60 hp Suzuki samari engine.This gives me This gives me 52,000 or 52 kiolwatts of power to work with.This should defiately smelt a little steel?
I guess I'm not so smart after all! The work coil IS in the secondary of the impedence matching transformer.The high impedence is reflected back to the IGBT's while the tank has high current.I still say the tank capacitor is far too small in KVAR.Sometimes I over react. inKKKVAR.sometimeshowever.Sometimes i over react.
My system will be operating at 30khz with 1.92 microhenry work coil with 1/2" tubing I believe I will sweat 56% Silver solder onto .This F0 will not over drive the IGBT's and create great penetration.I Should have many thousands of amps in work coil with Q of 126 icrease in input tank current.
If this fellow goes to MIT in a EE program he should get an "F" and expelled!Designing high power IGBT induction heater systems is serious business.You do not get something for nothing in physics!Even if you power this system with a 40 amp outlet from your electric stove circuit there is only 240vac x 40 amps=9,600 or 9.6KW available.The tank capacitor in the circuit needs to handle at least a Q of 10 rise in current depending on the quality of the main tank coil.The good main tank coils are very rigid and coated with Silver or even pure Silver for a very low DC resistance.The tank capacitor shown is woefully inadequate and very dangerous to use here.The actual capacitance was not gone into and is critical.As frequency decreases,the KVA capacity of the tank capacitors must increase.This means the tank capacitors must be rated at 100,000 watts or 100KVA for the Q rise in current.Another serious flaw in this design.The main resonant circuit should be in the primary of the impedence matching transformer-not in the secondary! The whole reason for having it in the primary is that the secondary work coil reflects back a high impedence to the main tank circuit so it is not depleted of energy and pull a lot of current on the IGBT's.At resonance the tank circuit should not pull any current at all if there is no load on the secondary and the work coil and show infinite impedence.There is no clear analysis of the dead time or the actual operating frequency.Without proper dead time between the two twin IGBT modules,the whole thing could explode like a hand grenade!Where is the closed lock loop that monitors resonant frequency shift as the inductance of the work coil shifts as metal is inserted in the work coil and goes incandescent as the magnetic domains are weakened?This means the pulse width modulation circuit must have VFO or variable frequency oscillation capability in order to lock onto the resonant frequency or the entire circuit will pull loads of current or not heat up metal very well.I should be in MIT and have a free scholarship!I'm already an endowed professor with a PhD and I don't mean Post hole Digger
could you send me the schematic? may email: email@example.com
Not really. Welder voltage too low and not stable at all (usually 70 or so volts with no load and 20-40v at that 150A). Sure you can run 350v-400vdc circuits on 35-40vdc but at only 1% the power since then it will also be at 1/10 the current. 300 VA might get a small 1/4-20 screw hot, but why build all this just to do that? That's like buying a Ferarri but never driving over 55mph.
Going another direction, I want to anneal brass tubing. I'm *trying* to build something that will heat rifle cases to around 750*F. without over annealing them, and do it in a very short period of time so I can maintain production volume.This takes a coil that is open enough for the brass to enter on a belt/conveyor and exit the same way, so the coil is longer, oval with the ends bent up to allow for brass to pass into the induction coil, and out of the induction coil as it proceeds down the production line.I CAN regulate the belt speed through the coils... And I can get the coils very close to the brass, but what I'm having an issue with is the amount of brass moving on the line (Mass) and building an inductor with enough power to make the brass reach the designated 750*F.With rifle brass, It's a pretty good conductor, so it doesn't heat as fast as steel, and I'm not trying to anneal the entire brass, just the top 3/4" or so... But production still puts a lot of brass in the coils at one time, so the heating is VERY slow, which leads to thermal transfer down into the case body/bottom, which I DO NOT want. I would rather the sides/bottom stayed under 450*F.I'm considering a water bath for the bottom of the cases, which is going to add more mass and slow the induction heating of the top of the brass...Since this is for a high volume competition shooter (100K rounds/year), and not a business, I would be glad to pay a REASONABLE amount of money for someone that can help address these issues.I've seen the high volume MANUFACTURERS have induction heaters that would knock out the entire process in just 3 or 4 seconds, I'm not looking for something that draws 440 volts AC and spins the electric meter off the side of the garage, but I would consider 220 VAC single phase, providing the unit works efficiently and doesn't cost a fortune to build or operate...Anyone got any ideas how to build something that doesn't bust the bank?
i need complete circuit diagram , help please if someone has simulation file then pls email me firstname.lastname@example.org
Pole transformers are insanely over-engineered since they are designed to handle switching spikes and voltage transients from thunderstorms and run at the full spec plate rating with only 1-2% loss 24/7 for 30-50 years. For 1 min runs they can do 10x their rating and only get warm. I know, there's a few Youtube videos of a guy running a 3 kVA one on a 150A circuit with no ballast at all (36kVA, over 10 amps on the 7200v side with a huge voltage drop) to see if it would blow up and it didn't. Now if he allowed that to continue for an hour yeah it would probably boil the oil and shoot the lid off. But that's when the utility just comes and replaces it with a bigger one. - Virtualgod2009.
I'm just an ME/MSE and want to modify this kit to include capabilities to quickly rotate the casting while running a DC current through the sample. Without digging through all the EE I would like to know if it is possible. Thanks! - bejam1n
Power utility: "don't do that"Hopefully they aren't oil filled; they will explode eventually. - bejam1n
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