VOLTAGE VARIATION COUNTERMEASURE METHOD FOR COMMERCIAL POWER SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a voltage variation countermeasure method for a commercial power supply system which can reduce the electric power loss of a voltage variation countermeasure device itself.;SOLUTION: In the voltage variation countermeasure method for a commercial power supply system, the voltage variation in the commercial power supply system 2 is predicted on the basis of the information obtained by a thunderbolt monitor 12, a voltage variation monitor 13 and a wind direction/velocity monitor 14, and the voltage variation countermeasure device 4 is connected to a load side power supply bus 1 only when the voltage variation is predicted.;COPYRIGHT: (C)2007,JPO&INPIT