MosWeld SiC

The New Evolution of HFI Welder HIGH EFFICIENCY WITH SILICON CARBIDE TRANSISTORS MOSWELD SiC is the ultimate solid state power supply using Silicon Carbide transistor technology, the highest overall energy efficiency (more than 90%) in the market allowing to decrease the production costs. MOSFET transistors with SiC substrate allows increased efficiency and reduced maintenance by eliminating a large number of semiconductors, firing and protection circuits as well as interconnection wiring and water cooling requirements. Silicon Carbide SiC transistor technology allows for higher capacity device utilization. Larger capacity reduces the quantity of devices required over traditional Si transistors thus, increasing reliability and electrical efficiency. In the end, this simplistic design gives advantages over traditional complex Si transistor designs in lower overall operational cost. An optimized control is adopted to limit the sensitivity to short circuits, minimizing downtime and also protecting the system. The galvanic insulation is provided by means of a transformer placed between an inverter and an oscillator. Auto-tuning for coil adjustment and intrinsic load adaptation features are implemented for easy welder usage. The three-axis adjusting table is integrated in the welding head. A single cabinet layout is adopted for the entire range up to 1000 kW. ADVANTAGES ENERGY EFFICIENT Reduced energy cost by drastic reduction in transistors using the SiC technology COMPACT DESIGN Single generator cabinet mounted directly over the mill INCREASED PRODUCTIVITY Quick change power inverter racks SHORT CIRCUIT TOLERANT Short circuit protection from the coil to the tube CONSTANT POWER FACTOR 95% maintained throughout the entire power range FREQUENCY VARIABILITY Auto-tuning of frequency (30% capability) VERSATILITY 30% power overrating for load adaptation INTERNAL ADJUSTMENT SYSTEM X, Y, Z internal coil arm positioning versus external adjustable table MACHINE FEATURES Modular Silicon Carbide based Inverter MOSFET transistors with SiC substrate Single cabinet design up to 1 MW Load short circuit protection (Proof is absolute) XYZ table inside the cabinet Easily adaptable to existing coil designs in most cases Sliding power modules for easy maintenance Fully-automatic remote controls Proven reliability in tube mill environments If a power module fails, the unit can still run Learn more at Saet Emmedi		Download the PDF brochure below