| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent tracking phenomenon or the occurrence of short circuit related to the measurement of the quantity of electricity of each phase flowing in aerial distribution lines and to improve the efficiency related to the measurement of the quantity of electricity of each phase flowing in aerial distribution lines. SOLUTION: In aerial distribution lines provided with detectors 7A, 7B, 7C for detecting the quantity of electricity of power distributed in aerial distribution cables 6A, 6B, 6C and a data collecting device 4 for collecting and storing the detected data of the detectors 7A, 7B, 7C provided separately from the aerial distribution cables 6A, 6B, 6C, a means for receiving and transmitting the detected data with a wireless transmitting means is employed in the detectors 7A, 7B, 7C and the data collecting device 4. Radio waves, optical signals or ultrasonic waves are available as wireless transmitting means. The detected data are received and transmitted via one of these means.</p> |
