Low compared to what?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.
it must be between 70%-90%Low compared to what?
An efficient SMPS -- Yes
A solar cell -- No
What were you expecting from rotating machinery?
Why must it be that high? Cheap bearings, high inertia, insufficient number of windings could all explain the discrepancy.it must be between 70%-90%
isn't it?
Of course we can speculate until the cows come home, but only the OP can shed additional light on the situation.It's quite unlikely Papabravo. A single phase induction motor would almost always be >70% efficiency when operated within its spec. 80% or so would be more typical.
To get one under 50% efficiency you would have to practically wind it with resistance wire, that's for any decent sized one (which would have typical magnetics).
This one in question might be some tiny cheap weird thing but if I received a reply back with >=46% efficiency for an AC motor it would definitely raise an eyebrow. That might be some type of broad spec, ie worse case, but even then...
Hi,It's quite unlikely Papabravo. A single phase induction motor would almost always be >70% efficiency when operated within its spec. 80% or so would be more typical.
To get one under 50% efficiency you would have to practically wind it with resistance wire, that's for any decent sized one (which would have typical magnetics).
This one in question might be some tiny cheap weird thing but if I received a reply back with >=46% efficiency for an AC motor it would definitely raise an eyebrow. That might be some type of broad spec, ie worse case, but even then...
it is not acceptable. %46 is a massacre . all countries have energy efficiency standarts. this manufacturer can't sell its products to anyone. >= 46 must have another mean.I think you have a very cheap poor quality motor that has a terrible efficiency.
Even its manufacturer cannot say how bad it is.
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.
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