WANG Bo, LUO Jin-sheng, HUANG Hong-xin, et al. Analysis of Circulating Current in Sheaths of 220 kV XLPE Single-core Cables[J]. High voltageapparatus, 2009, 45(5): 141-145.
WANG Bo, LUO Jin-sheng, HUANG Hong-xin, et al. Analysis of Circulating Current in Sheaths of 220 kV XLPE Single-core Cables[J]. High voltageapparatus, 2009, 45(5): 141-145.DOI:
By using the calculation model of circulating current in the sheaths of single-core XLPE cables
a C++ program is coded
and the circulating current in a grounding unit
in which sheaths of cables are connected via cross-bonding
is calculated for three-cable connection with different arrangements and lengths.And the calculated results are compared with the data measured in site.According to the calculated results and measured data
different cable arrangement and length of the three-cable connection lead to different circulating current in the sheaths of single-core XLPE cables.To reduce the circulating current in the sheaths
the connected three cables in a grounding unit should take equilateral triangle arrangement with same cable length.