BEIJING, Dec. 19 (Xinhua) -- State Grid Hunan Electric Power Company Limited in central China's Hunan Province has taken a host of measures to ensure the safe and reliable operation of the power grid so that electricity can be provided to residents during the cold winter.
Due to the impact of cold waves and rainfall since December 15, the power grid lines in high-altitude mountainous areas in central, western and southern Hunan have been covered with ice, with the thickness of ice on some lines reaching up to 18 millimeters, posing a challenge to the normal operation of the power grid.
In response to the problem, the disaster prevention and mitigation center of State Grid Hunan Electric Power Company Limited dispatched a team to melt ice on the frozen antennas by using a self-developed mobile direct-current ice melting device.
The center has also improved its work plan in advance for dealing with ice on the power grid this winter and next spring. According to the plan, anti-ice technologies including ice prediction, monitoring, and thawing will be applied.
To ensure safe and reliable power supply, multiple ultra-high voltage stations in Hunan have increased equipment inspections and adopted digital methods.
For example, Shaoshan converter station uses fire fighting modules on its digital platform to connect videos and carry out emergency deductions in the converter area, which is a important part of an efficient emergency response system.
The Xiaoxiang ultra-high voltage converter station has used cameras and drones to conduct comprehensive inspections. The station has also integrated more than 20 sets of digital systems with functions such as security, fire fighting, online monitoring of primary equipment, and achieve data sharing and functional linkage among various systems. (Edited by Su Dan with Xinhua Silk Road, sudan@xinhua.org)
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