This series of welder generators has been designed to ensure high performance and maintenance-free operation. The EPW3; EPW4; EPW5 welder-generators are brushless excitation (with rotating diodes) and a total electronic regulation. The generator is regulated using the EVR01 regulator, and the welding current is regulated by “chopper” technology to obtain high welding quality (DC high frequency 40KHz). Due to a special design, this system also allows for simultaneous use of the alternator and the welder. This special circuit also permits the forcing of the arc, anti–blockage, and is protected against short circuits on the exit from welding. The frame is made of Fe P12 steel, and all shafts are C45, to ensure that the unit can withstand rugged environments and is resistant to vibration. All units have insulation system to Class H requirements through advanced impregnation processes and material selection.
The EPW3-4-5 series has been sized to satisfy the most professional requirements of the welding sector, as it can be employed with high duty cycles in synergy with a 3 phase alternator which has optimum characteristics. All types of electrodes can be welded (rutile, basic cellulosic).