WELDING TRANSFORMER MEO CLASS4

WHAT IS WELDING TRANSFORMER?

•  IT IS A STEP DOWN TRANSFORMER USED TO REDUCE THE VOLTAGE APPROXIMATELY 15V - 45V TO PRODUCE THE CURRENT OF 200- 600AMPS IN SECONDARY WINDING,

• PRIMARILY WINDING->THIN WIRE AND MORE TURN(BECAUSE LOW CURRENT THIN WIRE CAN CARRY)

• SECONDARY WINDING ->THICK WIRE LESS TURN(HIGH CURRENT IS PROVIDED)

CONSTRUCTION OF WELDING TRANSFORMER?

• It is a auto Transformer
• It has a magnetic field core with primary winding which is thin wire and large number if turn.
• A secondary winding with less turn thick wire.
• Due to this arrangement its a step down Transformer.
• So we get less voltage and high current output.
• DC WELDING TRANSFORMER is also same working like ac welding Transformer. But in dc welding Transformer rectifier is provided to convert ac, in out put of   secondary winding.
• Also connect a indictor or filter to get the smooth dc current,
• This is the construction of welding Transformer.

(Please check  the image)

Working of welding Transformer?

• Its is the step down Transformer so we get les Voltage and high current.
• Which is near 15 to 45v and 200amp to 600amp
• For adjusting the voltage on secondary side there are topping on secondary winding by this we can get required amount nog secondary current for welding.
• Topping are connected to several High current switches,
•  welding electrodes  and the other end is connected to welding piece.
• When a high current flow in a large amount of I2.R, heat is produced due to contact resistance between welding piece and electrode.
• Because of this High heat tip of the electrode melted and fill the gaps between welding piece.