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yes , it is required so that the leakage current from transformer/electrical windings to metallic enclosure of welding machine does not harm a person/operator & the current is rooted back to earth

bajaj mahesh, asst fire & sec officer

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What are the three types of machines used in manual metal arc welding?

I am not sure your question is clear enough but here I go... Stick Arc Welding (AC or DC), MIG (Metal Inert Gas) and TIG (Tunsten Inter Gas). All three of these are the basic metal welding machines.


What type of welding machine use in spot welding or resistance welding?

Mainly In spot welding & resistance welding two type welding machines are used :- 1. Air Cooled & 2. water Cooled.


What is a general formula for welding output current and voltage relationship for MMA welding machines?

V= 0.05 i + 10 for mmaw welding v= 0.05 i + 20 for tig welding


What is a welding transformer?

A welding transformer is an electrical transformer used in welding power supply. It pulls relatively low current drawn from the mains power (typically limited to 15 A to avoid tripping the circuit breaker) and converts it to the typical 50 A to 500 A used in arc welding and higher currents used in spot welding. The main difference between a Normal Step Down Transformer & a Welding transformer , is Not only to Step Down ( lower ) the outlet supply voltage and at the same time increase the Available Output Circuit Current, but to be also able withstand the Short Circuit Conditions on the Welding Output Side and especially for the Magnetic ( Iron Lamination Core ) Part of the Transformer. This Magnetic Path difference prevents the Supply side Electrical Circuit from Oveloading , espcially during the Striking of the Arc, when the Welding Electrode & the Welding Job touch to initiate an Arc, after which the Welding Electrode is lifted slightly by Experience, to maintain the required weld flow. A Normal Transformer of equivalent rating will not be able witstand this operation without burning out.


What is welding transformer?

A welding transformer is an electrical transformer used in welding power supply. It pulls relatively low current drawn from the mains power (typically limited to 15 A to avoid tripping the circuit breaker) and converts it to the typical 50 A to 500 A used in arc welding and higher currents used in spot welding. The main difference between a Normal Step Down Transformer & a Welding transformer , is Not only to Step Down ( lower ) the outlet supply voltage and at the same time increase the Available Output Circuit Current, but to be also able withstand the Short Circuit Conditions on the Welding Output Side and especially for the Magnetic ( Iron Lamination Core ) Part of the Transformer. This Magnetic Path difference prevents the Supply side Electrical Circuit from Oveloading , espcially during the Striking of the Arc, when the Welding Electrode & the Welding Job touch to initiate an Arc, after which the Welding Electrode is lifted slightly by Experience, to maintain the required weld flow. A Normal Transformer of equivalent rating will not be able witstand this operation without burning out.

Related Questions

The old welding machines used electromagnetic winding to step up the current for welding rods. What is the new principle inside the welding machines?

The new principal inside welding machines is based on metal-arc welding, whereas the older welding machines used electromagnetic winding to increase the current in welding rods.


What capacity elcb is to be used for 50Amp welding machine?

For a 50 Amp welding machine, it is recommended to use an Earth Leakage Circuit Breaker (ELCB) with a capacity of at least 63 Amps to ensure it can handle the load safely. Additionally, the ELCB should have a sensitivity rating of 30 mA to provide adequate protection against earth faults. Always consult local electrical codes and a qualified electrician to ensure compliance and safety.


What are the three types of machines used in manual metal arc welding?

I am not sure your question is clear enough but here I go... Stick Arc Welding (AC or DC), MIG (Metal Inert Gas) and TIG (Tunsten Inter Gas). All three of these are the basic metal welding machines.


What are the symbols for positive and negative in welding machines?

+ and -respectively.


What type of welding machine use in spot welding or resistance welding?

Mainly In spot welding & resistance welding two type welding machines are used :- 1. Air Cooled & 2. water Cooled.


Which company makes the best welding machine?

Who makes the best welding machines is quite subjective. Some of the best machines are said to be made by Lincoln Electric while others prefer Miller Electric machines.


Short circuit example?

An example of a kind of short circuit is an arc welding.


What is a general formula for welding output current and voltage relationship for MMA welding machines?

V= 0.05 i + 10 for mmaw welding v= 0.05 i + 20 for tig welding


What kind of welding machines does the US Army use?

Miller


Can you run a 15 amp mig welder on 10 amps?

No, you should not run a 15 amp MIG welder on a 10 amp circuit. The welder requires a 15 amp circuit to operate safely and effectively. Running it on a lower amperage circuit can result in overheating, tripping the circuit breaker, or damaging the welder. It's important to use the appropriate power source for your welding equipment to prevent accidents and equipment damage.


What is a welding transformer?

A welding transformer is an electrical transformer used in welding power supply. It pulls relatively low current drawn from the mains power (typically limited to 15 A to avoid tripping the circuit breaker) and converts it to the typical 50 A to 500 A used in arc welding and higher currents used in spot welding. The main difference between a Normal Step Down Transformer & a Welding transformer , is Not only to Step Down ( lower ) the outlet supply voltage and at the same time increase the Available Output Circuit Current, but to be also able withstand the Short Circuit Conditions on the Welding Output Side and especially for the Magnetic ( Iron Lamination Core ) Part of the Transformer. This Magnetic Path difference prevents the Supply side Electrical Circuit from Oveloading , espcially during the Striking of the Arc, when the Welding Electrode & the Welding Job touch to initiate an Arc, after which the Welding Electrode is lifted slightly by Experience, to maintain the required weld flow. A Normal Transformer of equivalent rating will not be able witstand this operation without burning out.


What is welding transformer?

A welding transformer is an electrical transformer used in welding power supply. It pulls relatively low current drawn from the mains power (typically limited to 15 A to avoid tripping the circuit breaker) and converts it to the typical 50 A to 500 A used in arc welding and higher currents used in spot welding. The main difference between a Normal Step Down Transformer & a Welding transformer , is Not only to Step Down ( lower ) the outlet supply voltage and at the same time increase the Available Output Circuit Current, but to be also able withstand the Short Circuit Conditions on the Welding Output Side and especially for the Magnetic ( Iron Lamination Core ) Part of the Transformer. This Magnetic Path difference prevents the Supply side Electrical Circuit from Oveloading , espcially during the Striking of the Arc, when the Welding Electrode & the Welding Job touch to initiate an Arc, after which the Welding Electrode is lifted slightly by Experience, to maintain the required weld flow. A Normal Transformer of equivalent rating will not be able witstand this operation without burning out.