地下电缆实时动态负荷评估系统

电缆的传输容量应能根据测得的负荷、温度,并利用热学模型计算得到,夏季额定传输容量和紧急传输容量低于要求值。本文讨论如何实现动态负荷实时监测系统以增加其有效传输容量,并介绍这种动态负荷评估系统的实际应用情况,表明由此可大大增加电缆的容量,进而避免了原本增加循环冷却设备的投资费用。

Real Time Dynamic Rating System for Underground Transmission Cables

The capacity of cable circuits can be evaluated based on measurement of load and temperature data and thermel modelling. Summer normal and emergency ratings are lower than required. The alternatives considered to achieve the rating increase are discussed. Increasing the usable capacity by implementation of a dynamic real-time rating system is recommended.