DEVICE FOR MEASURING REACTOR OVERLOAD RATE

摘要

PROBLEM TO BE SOLVED: To calculate the overload rate of a serial reactor in a capacitor facility without using any current transformer or clamp CT(current transformer). SOLUTION: A measuring part 1 operates the higher harmonic analysis of the total terminal voltage of a reactor inputted through a PT and a capacitor, and directly calculates a reactor overload ratio from each order higher harmonic voltage and a reactor rate inputted from a key inputting part 2. Thus, the reactor overload rate cap be quickly measured without calculating any currents flowing in a reactor SR or performing any manual calculation.