DEMAND MONITOR CONTROLLER PROVIDED WITH HIGHER HARMONICS MEASURING FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a demand monitor controller provided with a higher harnomics measuring function which can perform the management and monitor control of the use power of a customer with simple constitution. SOLUTION: A higher harmonics measuring part 1B is annexed to the demand monitor controller 1A which manages the use power of a customer. The higher harmonics measuring part 1B is provided with an alarm contact 1B1 for higher harmonics and a control output contact 1B2 . The alarm contact 1B1 and the control output contact 1B2 are operated when higher harmonics occurrence rate gets over a certain value so as to prevent the occurrence of the fault by higher harmonics of the electronic equipment or the power capacitor of a power distribution system.