解决为什么高压输电可以减小电线能量消耗是因为发电厂总功率是一定的 那用户在深夜不耗电 能量哪去了 感谢 为什么高压输电可以降低消耗？
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发电厂总功率一定是没问题，这个总功率是指发电厂所发电力的带负载能力。假如不带负载，发电厂就处在空载荷运转状态，发电机空转不输出，此时有电动势不产生电流。
一般这种状态是一种资源浪费。
国外很多地方都有电力过剩情况，当地都采取鼓励用电措施的，比如冬天供暖采用电力比其他形式便宜等等。
电厂在夜晚时候过了用电高峰期后就降低发电功率。
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