1. (1) Japan Electric Association: Grid-interconnection Code JEAC 9701-2012, Ohmsha (2013) (in Japanese)
2. (2) Kandenko: “Demonstrative Research on Grid-Interconnection of Clustered Photovoltaic Power Generation Systems”, NEDO H15-19 Investigative Report, pp. 42-44, p. 643, pp. 705-706, pp. 757-763 (2008-5) (in Japanese)
3. (3) Japan Electrical Safety & Environment Technology Laboratories (JET), Kandenko: “Development of Test Methods for Clustered Grid-Interconnected Islanding Detection Functions”, NEDO H20-21 Investigative Report, pp. 21-23, p. 123, pp. 219-220 (2010-3) (in Japanese)