standard rotoverter configuration
I didn't give any diagram because it is the standard rotoverter configuration by Hector, powered from the grid (230V 50 Hz) through a variac (regulated transformer from 0 to 285V), noting else. One phase to A terminal of the motor, C terminal to the ground and a capacitor from A to B terminal. Star configuration of the windings.
The black box is the capacitor box (from 0.15 do 160 microF). The round thing on the left of this box is the variac, it was used to regulate the voltage going to the motor. No PWM or frequency regulation. Only the voltage and the capacitance. So, typical, normal, simple rotoverter.
After doing thousands of experiments with rotoverter like configurations ( rotoverter on 4 W ) I have come to conclusion that the construction and material used of the motor is a very important factor. This is the fist motor that I could go so low with the power consumption. With other motors the lowest I could go was 14 W.
I didn't give any diagram because it is the standard rotoverter configuration by Hector, powered from the grid (230V 50 Hz) through a variac (regulated transformer from 0 to 285V), noting else. One phase to A terminal of the motor, C terminal to the ground and a capacitor from A to B terminal. Star configuration of the windings.
The black box is the capacitor box (from 0.15 do 160 microF). The round thing on the left of this box is the variac, it was used to regulate the voltage going to the motor. No PWM or frequency regulation. Only the voltage and the capacitance. So, typical, normal, simple rotoverter.
After doing thousands of experiments with rotoverter like configurations ( rotoverter on 4 W ) I have come to conclusion that the construction and material used of the motor is a very important factor. This is the fist motor that I could go so low with the power consumption. With other motors the lowest I could go was 14 W.
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