Answer depends on voltage being used.
Volts x amps = watts
1000 watts = 1Kw
You have 200 amp welder.
Assuming you have 240volt power line to welder:
240Volts x 200amps = 4800 watts = 4.8Kw
200 A is DC output current. 240 A is AC input Voltage. Usually the welding machine output voltage is 12V to 50 V depending on the machine. So if we consider a welding machine which produces 200A DC current at 25Vp, the power will be 200*25 = 5000W. But we can use the same machine with reduced settings 2000W also.
A welding rectifier takes in the a/c output of a welding transformer, and the output is d/c. Used with old school welding transformers which were all a/c, in order to get d/c for use with low hydrogen rods etc.
1,000 milliamps = 1 amp 200 milliamps = 0.2 amp
As many as you wish, as long as you do cross 200 amp limit
Welding is done with a high current and low voltage. The voltage of a 500 amp welder might be 10 v so the power rating in that case would be 5000 watts.
In North America this size breaker could be used on a welding machine. A range in the home would use a 40 amp two pole breaker.
Depends on how thick the metal parts are, and how well the seams are prepped. You also need to consider the duty cycle of the welder if you're doing serial production or long welds.
Probably not. Some machines can be connected to a variety of voltage situations, most can not. An electrician could tell you if your machine is one of these. WHAT I HAVE IS A 220 VOLT 100 AMP SPEEDWAY SERIES. ITS LIKE THE MACHINE DOESNT WANT TO HOT ENOUGH. TRANSFORMER HAS DOUBLE MOVABLE CORE. You need a 110 to 220 volt transformer capable of providing at least 100 amperes on the 220 side. This transformer will pull more than 200 amperes from the 110 outlet. You may need an electrician to rewire your breaker panel and service connection.
200 amp maximum combined.
NOBODY!
Check the nameplate on the service panel. There it will tell you what the buss capacity is. On a 200 amp service nothing in the wiring configuration is allowed to be less than that the service rating. In the market there are 200 amp 42 circuit distribution panels.
A #6 copper conductor is used to bond a 200 amp distribution.
No. If device draws 200 amps breaker will trip.