The inverter part is consisted of MOSFET single phase invert bridge in parallel style. Each bridge`s design power is  120     kW /60 kW . We adopt building block mode to pile up power, it`s very convenient to install maintenance because every single bridge board is designed as drawer structure consisted of slideway.

We adopt matching transformer to realize power combination, also we adopt sub-resonance, no-welding transformer output mode and make resonace directly by tank resonance capacitor (low voltage ) and inductor to achieve steel pipe welding power transmission buy output lead.

Use sealed box and install overhead air conditioning.