7-092
インドネシアの西スマトラ州での150kVの送電線の停電接地抵抗の影響
◎YUSRENI WARMI・道下幸志（静岡大学）
The high rate of lightning trip-outs at the lower arm was found at the tower with the footing resistance of more than 30 ohms. Decrease of the trip-out rate and decrease of the trip-out ratio at the lower arm is the effect of decrease of the grounding resistance