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美国的电力工业是从只向本地区供电的小电力公司逐步发展起来的,包括几百家私营电力公司、近2000家市政公营电力公司、约1000家农村合作社电力公司和联邦电力公司共四种类型的电力企业。随着电网的发展,相邻电力企业逐步联网。但美国并没有形成全国骨干电网,联网基本上是500千伏的弱联系,只用以提供事故支持和部分电力交换。美国没有全国性的电力调度机构,全国互
The power industry in the United States is gradually being developed from small power companies that supply electricity only to the region, including several hundred private power companies, nearly 2,000 municipal public power companies, about 1,000 rural cooperative power companies and federal power companies Type of power company. With the development of power grids, adjacent power enterprises are gradually connected to the Internet. However, the United States did not form a national backbone network. The interconnection is basically a weak link of 500 kV, only to provide accident support and partial power exchange. The United States does not have a nationwide power dispatch agency that serves the entire nation