pump with the motor rated current
pump with the motor rated current
(OP)
hi;
we have installed new pump with 22kw/44 amp based on:
180 m3/hr
25 m
18 kw (pump curve)
measured amp is 44,Is that means pump running right to the BEP?
thanks.
we have installed new pump with 22kw/44 amp based on:
180 m3/hr
25 m
18 kw (pump curve)
measured amp is 44,Is that means pump running right to the BEP?
thanks.





RE: pump with the motor rated current
RE: pump with the motor rated current
A more precise estimate of motor performance would come from measuring the input voltage. If actual voltage were in the range of 88% nameplate, than your 44A could correspond to 18kw. Even more precise would be to measure voltage unbalance and power factor, and apply assumed efficiency based on nameplate for purposes of estimating motor output. Redundant estimate of motor output comes from using strobotach and examining the speed, than calculate output power proportional to slip using nameplate slip as a reference.
Of course the most direct measurement would be the pump flow to locate you on the curve (assuming speed is correct), and possibly pump head as a redundant check.
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