单相接地电容电流的自动补偿

为消除港口供电系统中电缆线路发生单相接地后电容电流对系统的危害 ,采用“直流偏磁式自动跟踪补偿消弧装置”进行补偿。该装置可在线自动跟踪、测量电网的电容电流 ,在发生单相接地故障时自动投入补偿。

Automatic Compensation of Single-Phase Current Capacitance

In order to eliminate the harmfulness of capacitance current to the power supply system when there is the single-phase grounding in the electric cable line in the port power supply system, a direct current magnetic-biasing type of automatic tracing compensation arc-eliminating gear is adopted for compensating. This gear can trace automatically on line, measure the capacitance current in electricity network, compensate automatically when there is the single-phase grounding and avoid effectively the series resonance over-voltage.