For a 120-amp, 120-volt arc welder, you typically need a double-pole circuit breaker rated for at least 30 amps. This allows for the necessary current flow while providing adequate protection against overloads and short circuits. It's also important to use appropriate wiring to handle the current safely. Always consult the welder's manual and local electrical codes for specific requirements.
maybe 10 amperes
Sure. No transformer is built to last forever. Aging and operations will weaken the insulation with time.
why should we use pulse transformer rather than ordinary transformer
It is used in where the transformer are connected in star delta.
You will need a 'step up transformer' but it is important to provide the details on the information panel of the welder before ordering
The proper ampere rating of a circuit breaker for an electric arc welder depends on the arc welder. Each is different. Look at the nameplate on the arc welder and choose the circuit breaker and wiring accordingly.
Stick welding is also more difficult to learn and use, particularly the ability to strike and maintain an arc. Arc welders are available in AC, DC or AC/DC, with AC being the most economical. It's used for welding thicker metals of 1/16 inch or greater.
it welds
4500to6000 celsius
Like any mechanical tool, machine or similar engineering equipment, an arc welder will have lots of different materials inside it. An arc welder is an electrical machine and any electrical machine must have wiring inside it. Most electrical wiring will be made of Copper. So yes, there is likely to be some Copper inside an arc welder.
which oil use for arc welding machine
s.m.a.w. shielded metal arc welding
Depends on a lot of things. Slickest work, but most expensive - TIG. Cheapest - arc (stick) welder. Reasonably user friendly and inexpensive - wire-feed arc/ MIG welder.) Most versatile - Oxyacetylene. Oxy will give have the biggest heat affected zone and is the hardest to use (IMO). If your kart is really thin wall tubing you can forget about the stick welder and even the MIG will be quite tricky.
10,000 Watts
There are several tools which are used by welders. Some tools include a cutting torch, helmet, AC Arc welder, and metal cutting tools.
That that would depend on what welder you are using. But most welders do have a arc that is brighter than the sun