Electric arc melting steel

[@banny123456]

When you have the anode and cathode carbon, anodes will be more hot and quickly burned. This is a simple demonstration of power electric discharge in a large stream. The actual industrial melting of the steel is in the closed container and much much more current and voltage. (>1000A,> 20 000V)

[@banny123456]

yes, with ballast it is possible. And rectifier is not necessary.

[@banny123456]

Yes, drop voltage is pretty much.

[@banny123456]

Welding transformer is specific type of transformer, it can work well in short circuit. Impossible on a normal type transformer.

[@TheCerberusInferno]

Thanks a lot for your help sir i'll try to melt steel with the same current , can you tell me why low voltage is better ?

[@banny123456]

No problem :). Is not better, but i don't have better power supply. This is welding transformer (3kW). High voltage is better but, you must have good current. ( Attention: This is not good method for melting steel. A lot of percent of the steel will be oxidized. Better to melt in the atmosphere. If you make this only for fun, it does not matter.)

[@banny123456]

maybe 15-25V. I did not use a voltmeter.

[@banny123456]

This is not a welder, but the test arc melting steel.

[@TheCerberusInferno]

Ok , I'll do my experiment saturday , i have 6 transformers ( 220/110 volts each one have 1500 watts ) and i'll try without a bridge rectifierif you think its not necessary , i hope to cut a hole in a steel plate with this method ..

[@TheCerberusInferno]

My 1500 watts transformer work very well in short circuit if the voltage is around 40 volts with a ballast ( i used 3 transformers 220/110 volts connected between each others .. ), you will have around 25 amps ( 25 x 40 = 1000 watts ) then why i can't connect my transformer in parallel with another 25 amps 40 volts transformer ( the same way described before ) with the help of two bridge rectifiers ???? do u think i'll have 50 amps like this ??

[@banny123456]

But, I not have a protective atmosphere

[@TheCerberusInferno]

Ok , i don't have a welding transformer but i'm thinking about using two or three transformers ( 1500 watts ) in parallel with the help of two or three bridge rectifiers GBPC5010 , and a 6 mm2 cable , do u have any suggestion ?

[@TheCerberusInferno]

anyway are you sure not more than 30 volts ??

[@TheCerberusInferno]

And the voltage is ?