I tried setting up the simple induction motor as described in vol 6, chapter 4.
For some reason I cannot get the rotor to spin. I have checked the wiring to match the diagram over and over. In calculating the equavalent resistance of a 25 watt lamp I calculate 571 ohms. not 820 ohms as the project describes. However, I used a 820 ohm resistor as the project describes. I also used three 10 microfarad capacitors wired in series. The three capacitors wired in series gives me an equalivant of a 3.3 mirofarad capacitor. and an inpedance of approximately 820 ohms. Thus the resistor and the capacitor, have the same resistance/impedance. Wiring the project as shown in Vol 6, chapter 4 and measuring the current thru the coil in series with the resistor I get .14 amps. Measuring the current thru the other coil in series with the capacitor I get .14 amps. Thus both coils have the same amperage. The rotor will not spin. Any ideals as to why?
For some reason I cannot get the rotor to spin. I have checked the wiring to match the diagram over and over. In calculating the equavalent resistance of a 25 watt lamp I calculate 571 ohms. not 820 ohms as the project describes. However, I used a 820 ohm resistor as the project describes. I also used three 10 microfarad capacitors wired in series. The three capacitors wired in series gives me an equalivant of a 3.3 mirofarad capacitor. and an inpedance of approximately 820 ohms. Thus the resistor and the capacitor, have the same resistance/impedance. Wiring the project as shown in Vol 6, chapter 4 and measuring the current thru the coil in series with the resistor I get .14 amps. Measuring the current thru the other coil in series with the capacitor I get .14 amps. Thus both coils have the same amperage. The rotor will not spin. Any ideals as to why?