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电和国民经济的发展息息相关。机器能正常运转、通讯能正常往来,人民的日常生活能按部就班,这一切都离不开电。没有电或者电的供应出现了故障,世界将会陷入一片混沌状态。为保证电力供应和电网的安全运行,从发电厂发电到输变电站供电最后到用户用电,这一连串过程中还有一个和电本身一样重要的环节就是电网的监控和保护。电网监控系统和保护装置就象哨兵一样时刻保卫着国民经济和人民生活的正常。
Electricity is closely related to the development of the national economy. The normal operation of the machine, the normal communication can be conducted, and the daily life of the people can be performed step by step. All this is inseparable from electricity. Without electricity or electricity supply failure, the world will be in a state of chaos. In order to ensure the safe operation of the power supply and the power grid, from the generation of power plants to the supply of power to the transformers and finally to the consumers, there is another link in this chain of processes that is as important as electricity itself is the monitoring and protection of the power grid. The power grid monitoring system and protective devices are like guards at all times to protect the normal national economy and people’s lives.