发布时间:2025-01-24 10:38:58
你好,电能计量如果是内部计量,可以使用串联电流表的方式接线,不影响计量效果。但要注意电流互感器的额定负载问题(电流互感器的二次负载直接影响着互感器的二次输出精度)。
可以这样分析:三相四线电度表在正常工作时只取电流信号和电压信号。保证电流信号不变的前提是串联电路电流相等(这个应该知道的吧)。电压信号你不需要考虑(直接从电源上取,电压不变)。
希望我的回答能给你带来帮助!
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