karimwassef
Active member
At the end of the day it's an AC pump with different commutation.
Any pump with phased windings has alternating current, but an optimized pulsed 100kHz waveform is not the same as 60Hz sinusoid from the line.
At the end of the day it's an AC pump with different commutation.
Let's not forget the losses that occurs in the controller and power supply.
Any pump with phased windings has alternating current, but an optimized pulsed 100kHz waveform is not the same as 60Hz sinusoid from the line.
How much ? Maybe 1-2% in good performed DC motorblocks and electronic and 50 % in bad AC motorblocks with large heattransfers ?
A DC pump can be very bad if you use bad components, such as SquareWave technology instead of Sine Wave, large gap between rotor and stator, bad hydraulic and so on.
The future are electronically commutated motors.
best regards .. .Klaus
We have both : AC and DC motorblocks. And i can tell you, DC-technology is significant better in Silence, energyconsuption and Efficiency.
We can perfectly simulate different operating conditions on our pump test stand.
Efficiency of a AC motor has 30-50 %, DC= 80 - 94 %
best regards ... Klaus
Sp6 purchased! Thanks folks!
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