Multi-circuit-type power meter, multi-circuit-type power meter, multi-circuit form power factor meter, multi-circuit type reactive power meter, multi-circuit type reactive power meter and multi-circuit-type instrument

摘要

Power of each circuit which is branched and voltage system of one or more systems of alternating current single-phase path [summary] or three phase cable [challenge] alternating current, from the voltage system of them, the amount of power, power factor, reactive power and the amount of reactive power and an object to be measured. Voltage input means one of a plurality of systems of [resolution] means the AC circuit And, current input means 2 equivalent equal to or greater than the number the number of voltage input means 1 If, the voltage, and enter the current power measuring unit 3 for measuring the power of the current input means and the equivalent number is provided, and the voltage input to the power measuring unit 3 to be input through the voltage-current arbitrary combination means 4 Te, is to arbitrarily select possible system voltage to each circuit current provided to the current input means 2, and by arbitrarily selecting the line voltages for each circuit current and required power for any of the system voltage and is obtained as is.