| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic watt-hour meter capable of suppressing illegal use of electric power by notifying an illegal user that power measurement is executed without being missed, by a display of a superficial electric energy, even when a power factor is advanced intentionally or delayed abnormally for illegal use. SOLUTION: A CPU 60 calculates not only an integrated effective electric energy and an ineffective electric energy but also an integrated superficial electric energy and displays them on a display device 9, using the effective electric energy measured by an effective electric energy measuring means 1 and the ineffective electric energy measured by an ineffective electric energy measuring means 2. |
