Inverter welding machines have many advantages over conventional welding machines. Inverter welder is compact, portable, easy to move when welding in the field.

In addition, the inverter offers high welding quality, and can be used in many welding processes such as manual tig and arc welding machine , MIG welding, core wire welding, chisel cutting and pulse welding. And in more advanced machines, the inverter welding machine incorporates waveform control technology that enables better control of arc variability and automatic arc welding optimization.

However, the above advantages are not all, using inverter welding machine also save considerable electricity compared to traditional welding machines. Each year, about $ 15 million in electricity costs are consumed in the United States and $ 99 million in the world exclusively for welding consumables. To increase efficiency and cut production costs, Of the welding machine, using an inverter welding machine is an attractive option. Actually, using an inverter welding machine saves considerable utility costs by the performance of this machine.

But how can inverter welding machine save power consumption? In the design of inverter welding machines, transformer cores, transformer coils and power electronics transformers are all carefully selected to minimize energy loss. Here are some other reasons why an inverter solder saves energy costs:
• The efficiency of the transformer is greater due to the use of ferrite cores in the power transformer of the inverter welding machine. This minimizes line losses leading to lower no-load currents in the supply conductor.
• The transformer core of the inverter welding machine is smaller than the conventional transformer. The smaller transformer core means fewer wires wrapped around the core – so less loss and greater efficiency.
• The power electronics components of the inverter are carefully designed to minimize losses and extend service life.
• Many inverter welding machines use copper wires. Copper conductors have higher conductivity and thermal conductivity than aluminum, minimizing loss and efficiency.
• Operating at higher frequencies than conventional welding machines, inverter welding machines require less inductance, so the machine operates smoother. The energy needed for hand-held arc welding or for the welding process of the transfer ballast is stored in the capacitors which allow the throttle to resist the smaller output.
• Compact inverter design and relatively small physical size, ie wires (or even wiring) between shorter power components. Shorter transmission lines mean smaller resistors and higher efficiency.
• Because the inverter is designed for low energy loss, it requires only a smaller fan. This means that less energy is required to create a cooling air stream, resulting in higher machine performance.
• The size of the accessories inside the inverter is smaller so less heat dissipation, so the performance is higher.

We can calculate why an inverter solder can save more money than traditional transformer and inverter welding machines, which is best for generating energy efficiency. Use the following calculation steps to evaluate.

Step # 1 – Calculate output power
First, look at the parameters displayed on the machine to determine the output voltage (Vout). Take for example 32V. Then multiply by the output current (Iout) is indicated on the meter display Ampe. In this case, the value is 300A.
Vout x Iout = Wout (Wat)
32v x 300 amps = 9,600 watts or 9.6 kilowatts

Step # 2 – Calculate input power
Now we have the output power from the result on (KWout) and divided by the efficiency (Eff). Performance is provided by the welding machine manufacturer. This calculation will give us the input power in kilowatts.
KWout ÷ Eff = Input Power (KWin)
9.6 KW ÷ 88.2% (or 0.882) = 10.88 KW

Step # 3 – Calculate operating costs during welding
A) Next, calculate the kilowatt hours used in a day (KWh1 / day) by taking the input power calculated in Step # 2 (KWin) multiplied by the number of hours per day the machine is operating (for example, Fixed 4 hours a day)
KWin x # hours / day = Kilowatt hours used in one day (KWh1 / day)
10.88 KW x 4 Hrs. = 43.52 KWh / day

B) Continue to get the calculated power (KWin) multiplied by the number of hours a day the machine operates multiplied by the price of electricity per 1KW hours. Taking the electricity price calculated as $ 0.12578 is the average industrial electricity price.
KWin x hours / day x Price / kWh ($ / KWh) = Daily welding cost
10.88 x 4 x $ 0.12578 = $ 5.47

Step # 4 – Calculate operating costs during idling
A) You will now calculate the daily no-load consumption (KWh2). To do this, take the input power (KWIdle) multiplied by the number of idle hours a day. (We assume that in an eight-hour day, if the welding is done four hours, the no-load hours will be four hours.)
KWI does not load x hours no load. = Power consumption no load in one day (KWh2)
0.4 KW x 4 hours = 1.6 KW hours

B) Now take the unloaded input power (KW no load) already on the transformer