caa a22 4500 378912046 CHVBK 20180305123544.0 cr unu---uuuuu 161128e20040923xx s 000 0 eng 10.2202/1553-779X.1008 doi (NATIONALLICENCE)gruyter-10.2202/1553-779X.1008 Characteristics and Reduction of Sheath Circulating Currents in Underground Power Cable Systems [Elektronische Daten] [C.K. Jung, J.B. Lee, J.W. Kang, Xinheng Wang, Yong-Hua Song] Sheath current can cause sheath loss and reduce the permissible current of a power cable transmission system. High sheath current is usually caused by mixed cable burying formation, different length between sections, poor connection of the bonding leads, and connection of distribution cable onto transmission systems. This paper analyses the characteristics of sheath circulating current at various conditions and presents a useful method to reduce it in a mixed burying formation system. It can effectively reduce the current by up to 90%. The method is validated by practical measurements and simulations using ATP, and has been implemented in actual systems. In addition, a special equipment is designed to measure and analyze the sheath circulating current. It can measure and analyze nine currents at a same time. ©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston underground power cable nationallicence sheath circulating current nationallicence power transmission nationallicence Jung C.K. Wonkwang University aut Lee J.B. Wonkwang University aut Kang J.W. KEPRI aut Wang Xinheng Kingston University aut Song Yong-Hua Brunel University aut International Journal of Emerging Electric Power Systems De Gruyter 1/1(2004-09-23) 1:1 2004 1 ijeeps https://doi.org/10.2202/1553-779X.1008 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2202/1553-779X.1008 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jung C.K. Wonkwang University aut NATIONALLICENCE 700 1- Lee J.B. Wonkwang University aut NATIONALLICENCE 700 1- Kang J.W. KEPRI aut NATIONALLICENCE 700 1- Wang Xinheng Kingston University aut NATIONALLICENCE 700 1- Song Yong-Hua Brunel University aut NATIONALLICENCE 773 0- International Journal of Emerging Electric Power Systems De Gruyter 1/1(2004-09-23) 1:1 2004 1 ijeeps CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter