CALCULATION METHOD OF MAXIMUM CONDUCTOR TEMPERATURE AND MAXIMUM ALLOWABLE CURRENT IN TRANSMISSION LINE ICE- MELTING WITH SHORT-CIRCUIT
Ice-melting with short-circuit in transmission line is the most effective methods of de-icing. Conductor would be damaged if rapidly rising conductor temperature exceeds the allowable temperature. A lot of laboratory experiments were carried out on both LGJ-240/30 and LGJ-400/35 conductor in the artificial climate chamber. The tests results and analysis show that the maximum temperature of conductor is determined by two factors includingthe thickness of ice and ice-melting current. simple calculation formulas of ice melting time and ice melting current are put forward in this paper. Also a method to calculate the maximum temperature of conductor and maximum allowable conductor current is deduced. Calculated and experimental results agree very well.
Bai Yunqing Mo Wenqaing Wu Bin Zhou Shu Liu Yu
Chongqing Electric Power Corporation, 400067, China State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing
国际会议
The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)
重庆
英文
54
2011-05-08（万方平台首次上网日期，不代表论文的发表时间）