1. IEEE Std 142-1991, “IEEE recommended practice for grounding of industrial and commercial power systems.”
2. IEEE Std 242-1986, “IEEE recommended practice for protection and coordination of industrial and commercial power systems.”
3. Grounding of AC and DC low-voltage and medium-voltage drive systems;Das;IEEE Transactions on Industry Applications,1998
4. Karlsson, P. and J. Svensson , “Fault detection and clearance in DC distributed power systems.” NORPIE/2002, Nordic Workshop on Power and Industrial Electronics, August 12-14, 2002.