When a big storm occurs, the Space Weather Prediction Center releases a warning to the U. S. Department of Homeland Security, emergency managers and agencies responsible for protecting power grids.
一场强太阳风暴到达时，太空天气预测中心发送警告信息给美国国土安全局，应急指挥人员和保护电网的部门。
Grounding state of Overhead Line Tower in transmission grids has an important significance for security and steady operation of power system.
输电线路杆塔接地状况对电力系统的安全稳定运行具有重要意义。
Therefore, raising the precision of the medium arid long term power load forecast is of great significance to ensure security, economy and the excellent operation of power grids.
因此，提高中长期电力负荷预测精度，对于保障电网安全、经济、优质运行具有重要意义。
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