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Power factor and efficiency of motor working in △/Y reducing voltage
Author(s): 
Pages: 40-42
Year: Issue:  8
Journal: ENERGY CONSERVATION

Keyword:  异步电动机降压节电功率因数效率;
Abstract: 对某10kW电动机进行试验,研究电动机△/Y改接运行的功率因数和效率,得出当低于某一临界负载率(一般为35%~50%)时,由△接线切换为Y接线可以节电,尤其是当电机处于极轻载时(如负载率β<10%),△/Y改接运行能够更多提升效率,节能效果更明显.
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