Before you follow any of these instructions, make certain that you check with the documetation that came with the generator, since I can't be certain of what your generator is doing. The following assumes that the generator provides 220 output and is NOT 3 phase. If it's 3 phase, all of the following is wrong and don't do this! In general, 220 circuits have 2 110 "leg's" which are nothing more than a center-tap into the 220 source. It can be a center tap on a transformer or a generator. The center tap is designated with a white wire, and the two "hot" lines are usually designated with either black or red. In the case of your generator, if it is not a 3 phase circuit, the 4th wire is probably green which is the universal indicator for a ground wire. To be safe, it is a good idea to ground the generator using a long, copper grounding rod that has been driven into the ground and using a good sized wire (typically #10 or larger) connect it to the generator at the grounding lug, again, see instructions that came with the generator. To make the welder work with the generator, you can "get by" connecting the white wire to the white of the generator or if you're using a plug connect it to the silver screw. The two black wires or the black and red wires are connected to the two brass colored screws. Whenever a ground wire is provided on a wire it should be connected to grounding screw of the plug. I hope this is enough information. If you have any questions, contact the manufacturer or a local electrician.
When you refer to a 200 amp welder you are talking about the output side of the welder. What you have to do is find out what the input voltage and current of the welder is to calculate the size of a generator needed to operate the welder.
No, unless you can set it low and can be assured that it wont use more than say 4000watts, the welder might momentarily use more power than what you set it to, it should not wreck the welder i would imagine unless it is a fancy mig welder or something, set the welder low you should be fine but for high end use she should be firing out 8 or 9kw so keep it low if you must.
Generators are rated in watts or kilowatts. The formula for watts is W = Amps x Volts. To size a generator for the welder the voltage of the machine must be stated.
Your welder needs 20A at 120V for full output. This is 2400W, but you should always add a little extra margin, so I would recommend a 3600W generator.
First you need to know that an electric dryer is almost always a 30 amp 220 Volt power supply. Most small welders require a 50 amp 220 volt power supply. Check your welder's power requirement. If it requires 50 amps, it'll never work correctly on 30 amp.The plug conversion is simple. The wire your dryer is powered by will have two "hot" legs, the red and black wires. These supply the 220 volt. Then it has a ground (bare copper or green conductor. And last it has a white wire, the neutral.Your 3 prong plug on your welder only requires the two "hot" legs and the ground wire. You shunt the neutral white wire with a wire nut.
When you refer to a 200 amp welder you are talking about the output side of the welder. What you have to do is find out what the input voltage and current of the welder is to calculate the size of a generator needed to operate the welder.
A welder generator can be purchased from several online retailers. Northerntool website has generator prices ranging from $1,500 - $27,000. Depending on a person's criteria for purchase. Their number one best selling Welder generator cost $4500.
No, unless you can set it low and can be assured that it wont use more than say 4000watts, the welder might momentarily use more power than what you set it to, it should not wreck the welder i would imagine unless it is a fancy mig welder or something, set the welder low you should be fine but for high end use she should be firing out 8 or 9kw so keep it low if you must.
yes
No, the output voltage is too high.
no
1. Some home made welder links below.
Generators are rated in watts or kilowatts. The formula for watts is W = Amps x Volts. To size a generator for the welder the voltage of the machine must be stated.
Your welder needs 20A at 120V for full output. This is 2400W, but you should always add a little extra margin, so I would recommend a 3600W generator.
If the power tool has brushes to bring the current to the armature it is classed as an universal motor. It will run on DC as long as the voltage is the same potential. On a welding machine the 120 volt receptacle is a DC output and the grinders, drills, etc that are plugged into it work fine.
Need to know the amperage rating of the plug or the NEMA configuration of the plug and receptacle
Technically no. In the USA the NFPA electrical code requires a separate circuit for each large appliance receptacle- there are a few exceptions (such as a heater and AC on same circuit) - I don't think the welder is one of the exceptions. In practice, as long as only one receptacle is used at a time, it will work fine Make sure that the wire size is correct for the current (amp) draw. This is taken off of the welder nameplate. Size the breaker to protect the wire size. If more that one welder gets plugged in the breaker will trip.