MICROPROCESSOR-BASED WIDE BANDWIDTH FAST ACTIVE POWER TRANSDUCER

Fast and accurate measurement of real power is indispensable for power system monitoring and control, protective relay systems and fault rec ording systems. Taking advantage of the accuracy and simplicity of the Hall effect based sensor and powerful data processing and logic contr ol functions of a microprocessor, a microprocessor based fast real pow er measurement device has been developed. A series of tests were condu cted in a physical simulation laboratory to demonstrate its capability in measuring active power in balanced and various unbalanced conditio ns.