Single phase 2.2Kw motor blowing fuses
Single phase 2.2Kw motor blowing fuses
(OP)
I am not an electrical engineer so I am not familiar with these motors at all.
It is a single phase 240V AC motor. Rated 2.2KW. It has a 16A power feed with a 16A fuse but when the motor is loaded up, the fuse blows.
240V, 16A = ~3.8KW
How is it possible for the motor to draw over 2.2KW or is that not really a set limit, just a limit the motor should not be used above?
I know this is probably really basic but I have no idea.
Thanks.
It is a single phase 240V AC motor. Rated 2.2KW. It has a 16A power feed with a 16A fuse but when the motor is loaded up, the fuse blows.
240V, 16A = ~3.8KW
How is it possible for the motor to draw over 2.2KW or is that not really a set limit, just a limit the motor should not be used above?
I know this is probably really basic but I have no idea.
Thanks.





RE: Single phase 2.2Kw motor blowing fuses
Also, if the power factor is around 0.7 you cannot get more power oout of the shaft than 3.8*.7=2.7 kW. Then, there are other things to consider also. I don't find it mysterious at all.
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: Single phase 2.2Kw motor blowing fuses
"Will work for (the memory of) salami"
RE: Single phase 2.2Kw motor blowing fuses
Bill
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"Why not the best?"
Jimmy Carter
RE: Single phase 2.2Kw motor blowing fuses
Ah ok. The motor works fine under no load. I have found another motor that is the same apart from the fuse inside is 20A rather than 16A so that was probably someone elses solution/bodge. I also forgot about the power factor with AC so thanks Skogsgurra.
Thanks for the help. We will have to be more careful loading this motor up.