OPGW复合地线光缆短路电流计算分析  

Short-circuit Current Analysis for OPGW

作　　者：张弘[1] 杜振东[1] 董国跃[1] 胡映梅[1] 

机构地区：[1]浙江省电力设计院,310007

出　　处：《浙江电力》1998年第5期8-11,共4页Zhejiang Electric Power

摘　　要：通过高压送电线路选用的复合地线光缆（OPGW）在发生接地故障时的短路电流计算及光缆热容量计算，提出了降低OPGW中的短路电流与热稳定容量的几种措施。There are outstanding advantages to transmit information using OPGW(composite fiber optic overhead ground wires )for high voltage transmission lines, having large communication capacity, strong antidisturbance, high reliability on towers and not need additional corridors, etc. But for being covered with leaden sheath, aluminum- alloy and aluminum - clad wires, its impedance by far less than that of zinc -coated steel wires and the grounding resistance of towers, the OPGW will carry large current when one lhase to ground short - circuit happens, causing sgarp rise of temperature of OPGW and the detreioration of its performance. This article is to work out the different measures to lower the short - circuit through OPGW.

关 键 词：复合地线光缆 短路电流 接地电阻 通信 送电 

分 类 号：TM73[电气工程—电力系统及自动化]