savage67 Posted November 23, 2009 Report Share Posted November 23, 2009 I ask my supplier about efficiency of my mono phase induction motor. he sent me that; Efficiency eff≥46% What ise the mean of that. 46% is very low. isn't it or is there anything i overlooked. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted November 23, 2009 Report Share Posted November 23, 2009 Why don't you ask your supplier?What's the power rating of the motor? Small motors are much less efficient than large motors so if this is an aquarium pump or a small desk fan motor then I wouldn't be surprised.The supplier might have given you the apparent efficiency, i.e VA/Pout rather than the true efficiency. Quote Link to comment Share on other sites More sharing options...
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