电网设备板块9月12日跌0.5%，聚星科技领跌，主力资金净流出9.35亿元

Group 1 - The core viewpoint of the news is that the power equipment sector experienced a decline of 0.5% on the previous trading day, with 聚星科技 leading the losses [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] - The power equipment sector saw significant individual stock movements, with 崧盛股份 rising by 8.94% and 聚星科技 falling by 4.95% [1][2] Group 2 - The trading volume for the power equipment sector showed a net outflow of 9.35 billion yuan from institutional funds, while retail investors contributed a net inflow of 8.54 billion yuan [2] - The top gainers in the sector included 崧盛股份, 南网科技, and 大烨智能, with respective increases of 8.94%, 6.70%, and 5.76% [1] - Conversely, the top losers included 聚星科技, 温州宏丰, and 良信股份, with respective declines of 4.95%, 3.81%, and 3.31% [2]