电网设备板块1月28日涨0.04%，智洋创新领涨，主力资金净流出26.29亿元

Group 1 - The core viewpoint of the news is that the power equipment sector experienced a slight increase, with a 0.04% rise on the previous trading day, led by Zhiyang Innovation, which saw a significant increase of 12.53% in its stock price [1] - The Shanghai Composite Index closed at 4151.24, up 0.27%, while the Shenzhen Component Index closed at 14342.9, up 0.09% [1] - The top performers in the power equipment sector included Zhiyang Innovation, which closed at 45.45, and Zhiguang Electric, which closed at 12.95, both showing notable gains [1] Group 2 - The power equipment sector saw a net outflow of 2.629 billion yuan from institutional investors, while retail investors contributed a net inflow of 1.647 billion yuan [2] - The individual stock performance showed that Yuantong Co. had a net inflow of 229 million yuan from institutional investors, while it faced a net outflow from retail investors [3] - The overall trading volume in the sector indicated a mixed sentiment, with some stocks experiencing significant inflows while others faced outflows [3]