No load input current: This is the current drawn from the input power supply when welding is not being carried out.ġ2. Welding current: This is the current drawn from the output of welding power source given in Amperes.ġ1. Load voltage: This is the voltage available at the output terminals of welding power source when welding is being carried out, given in Volts.ġ0. Open circuit voltage :This is the voltage available at the output terminals of welding power source when welding is not being carried out.ĩ.

Output power : Input power X EfficiencyĨ. Output power : Output voltage X Output currentħ. Input power :%3 X Voltage input X Input current X power factorĦ. Input KVA three phase : %3 X Voltage input X Input currentĥ. Input KVA single phase : Input voltage X Input currentĤ.

Input KVA: It is the product of voltage applied and current drawn from the input power supply.ģ.

It should be noted that it is a vector sum not an algebraic sum.Ģ. Power factor: It is the ratio between active power and the sum of active and reactive power. DIFFERENT TYPES OF WELDING POWER SOURCES.Ī2.Variable current welding transformer (magnetic shunt type).ī1.Transductor type welding power source (welding rectifier).ġ. The following are the types of welding power sources that can be differentiated based on value based parameters.Ģ.We may understand that welding can be carried out using.Our discussion will cover power sources that are used in MMAW and TIG welding processes.A constant voltage power source is used in MIG/MAG and SUBARC welding processes.ġ.MIG stands for metal inert gas welding.Ģ.MAG stands for metal active gas welding.ģ.SUBARC stands for submerged arc welding.TIG stands for tungsten inert gas welding.MMAW stands for manual metal arc welding.A constant current power source is used in MMAW and TIG welding processes.There are two types of welding power sources.The choice of a welding power source depends upon the process of welding.Ever since the process of welding entered the engineering field there is continuous innovations in the field of welding power sources.To create this arc a power source is required. This heat is created in the form of an electric arc. To make a joint of two metals immense heat is required. Welding is a process of joining two metals.Introduction to welding power sources, various types, applications, useful definitions, relative advantages, disadvantages, what is an inverter in general, different power semiconductors used in inverters, different design topologies, Arcrafts welding inverters and comparison of costs.

Moveable shunt welder troubleshooting