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Those answers are just mumbo-jumbo-babble. Just use a rheostat at 1000 ohms and plenty of amps ratings. Ohmite makes the best. A rheostat varies the current going through the motor. Research it and you'll see that I'm right. Not many people knows that. Laboratory stir plate are made with a shaded pole motor, a switch and a rheostat. That's all. And their ...


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Can I model the motor as a single phase motor One phase of a three-phase motor is usually modeled. You are then working with the line to neutral voltage and the phase current. The electrical power to the circuit, the losses and the electrical power converted to mechanical power are each multiplied by three for the complete motor. does a motor circuit ...


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It is not quite correct to say that reactive power is consumed. Reactive power is the continuous transfer of energy back and forth between capacitive and inductive storage. The only energy that is consumed in the usual sense is due to relatively small losses dissipated as heat in resistance during energy transfer. The only capacitive storage elements are ...


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The lever switches the contacts as a 2P2T but the stationary contacts are dark and not visible but likely oxidized from arc heat. The typical universal brake motor has high current from BEMF. Sometimes repairable surface if sufficient material exists. It may be an alloy of copper. Better to replace worn parts.


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As noted by others you should try changing the brushes. I had a washing machine with a universal motor stop working. (No notice, just went from working normally to stopped mid-wash.) The brush and commutator surfaces showed no signs of damage. The only visual indication was that the brushes were much shorter than a new pair. Fitting new brushes restored ...


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In a refrigerator, the compressor is a mechanical device driven by an induction motor. This about how motor works (as opposed to how a compressor works. The characteristics of a compressor have some influence, but the essential answer is given by the characteristics of a motor independent from what it is driving. The motor draws a higher current when it is ...


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Here is a greatly simplified schematic and simulation. The motor starts at time = 1 second. Half a second later when the motor has started up, the load drops. The house wiring resistance will cause the voltage to sag when a large load is applied. simulate this circuit – Schematic created using CircuitLab By $R_T$, I denote the total resistance ...


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A compressor has a motor and the motor is attached to a load that has torque that has to be overcome to get it to rotate because of the piston compressing on each rotation. From this site: Once the motor starts rotating at a reasonable speed, the inertia of the parts helps overcome the torque as the piston compresses the refrigerant, but as it is ...


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It is sufficient to know that a fridge has a motor. When it starts, it takes a huge surge of current until it has reached the target speed. Wires have resistance. So when there is current running in wires, there is a voltage drop due to resistance. So the voltage drops at the lamps too when the motor takes a surge of current, and that voltage drop is easily ...


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