摘要
根据某工程电缆的结构参数、敷设环境和运行参数近似计算了电缆地线中的电容和感应电流后按电缆运行最高负荷和金属护套感应电压的安全值提出并评估了电缆接地改造方案。结果表明,选择电缆接地方式时需综合考虑电缆结构参数、长度、负荷大小等因素。
A kind of grounding mode of XLPE cable is described and the current flowing in the ground wire is detected. According to the structural parameters, laying environment and working parameters, the components of capacitive current and induced current are calculated in engineering approximation. A proper modification of grounding mode is proposed on the basis of the maximum loading current of cable and the upper limit of induced voltage in its metallic shealth. The effect of modification is also evaluated.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2006年第2期87-88,94,共3页
High Voltage Engineering
关键词
电缆
接地
交叉互联
感应电势
电容电流
cable
ground
crossing connection
induced voltage
capacitance current
