Adiabatic Conductor Cross-Section Measure Circuit
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29
Adiabatic heating of conductors causes a temperature rise of the conductor with the .004 L/L/oC function. An increase in conductor resistance follows the temperature so that the voltage across the conductor, with 50 amps applied, results in a rising slope (in mv/m sec). This circuit measures the slope, after application transients have settled and before conductor heating gets out of the rather linear dv/dt function with copper resistive, with temperature and the increasing rate of heating, due to the increasing PC resistance.