Arc Master

ArcMaster takes equipment class, fault type, system voltage, available short circuit fault current and X/R ratio, conductor gap, working distance, protection device type and rating, or a preset arc duration value, and determines incident energy, arc flash and shock protection boundaries. Arcing current can be expressed as a function of the length of the gap and arcing voltage. Arcing voltage can be derived as a function of arcing current, system voltage, available fault current and the fault X/R ratio. ArcMaster V1.0 calculates arcing current using the iterative method by cycling through the equations for arcing current and arcing voltage until the answers converge. Next, the program will determine the arc duration based on protective device time-current characteristics and circuit time-constant. Lastly, the program will calculate incident energy at working distance, arc flash and shock protection boundaries. Check AC Arc Flash Modeling for more information. ArcMaster V1.0 comes complete with a built-in library of selected protection devices and the capability to extend the library. The program will determine arc duration based on predicted arcing current value and selected protection device type and rating.