Engineering Solutions For Arc Quenching Efficiency Of Fuses

Modern power systems place stringent demands on the arc control capabilities of short-circuit protection devices. As a core current-cutting device, the arc-extinguishing efficiency of the drop out fuse directly determines system reliability and equipment safety. A key breakthrough lies in the precisely designed arc-extinguishing chamber structure combined with highly efficient gas-generating materials. Optimized grid geometry and slit dimensions accelerate arc segmentation and cooling; precise calculations of gas generation rates and pressure release channels ensure rapid and uniform gas flow.

Material advancements significantly improve performance. High-purity quartz sand filler is used, with optimized particle size distribution enhancing heat absorption and electrical insulation recovery strength. Upgraded alloy melt structure prioritizes silver composite materials, ensuring more precise melting characteristics and lower arc impedance. High-conductivity, arc-resistant alloys are used in the contact assembly, significantly reducing contact resistance and arc erosion effects. Precision manufacturing processes strictly control melt forming, filler density, and arc-extinguishing chamber assembly tolerances, ensuring batch consistency.