【正文】
化監(jiān)控技術等(Email:chh5183@)。The solution of conventional substation unattended after transformation Li Jianyu1 Chen haihong2( Bureau of Power Industry, Zhejiang Wencheng 325300,2. Cangnan Power , Zhejiang Cangnan 325802)Abstract: As the grid development and continuous improvement of automation, departments of the power system have technological improvements on their conventional electromagnetic substations(old substation) for automated transformation, which has achieved substations (old substation) unattended. However, the subsequent transformation of unattended substation automation left problems, such as the reclosure failure, the reclosure start mistakenly and the emergency total signal loss and so on. To solve these problems, we correspondingly transform and design from the 10kV feeder lines of unattended substation, the secondary protection circuit of central signal part and remote (automatic) circuit, by increaseing the twoposition relay(JSW), diodes and other methods, then we set 35kV Yishan substation of our pany as an experimental pilot and has conducted the transformation of the secondary protection circuit and remote circuit, which had solved pletely the problems mentioned above。 thus, it is widely promoted in all of the conventional electromagnetic substations.Key words: substation, unattended, problem, solution聯(lián)系地址:浙江省蒼南縣龍港鎮(zhèn)龍港大道電力大樓(陳海宏 收)郵編325802第 8 頁 共 8 頁