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29 天
BYD-B二次压降及负荷测试仪
电能计量综合误差过大是电能计量中普遍存在的一个关键问题,电能计量综合误差是由电压互感器的合成误差、电流互感器的合成误差、电度表的误差、电压互感器二次导线压降所引起的计量误差所组成。在这四项误差中,电压互感器二次导线压降引起的计量 ...
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