Wiring a capacitor to start a motor begins with the connection of the positive terminal of the motor to the resistor. Take one terminal of the resistor, and connect it to the capacitor. Read the wiring diagram on your appliance to understand the colors that the manufacturer designed for the three connections, namely, start, run and common. Locate the negative terminal of the capacitor, and attach it to a switch.Continue Reading
The start connection commands a series of connections up to its winding. If the motor has a switch on the rotor with a pair of connections that are closed when the motor is not running, take one wire and put it on the start cap, and then connect the cap to that contact. Open and close the switch repeatedly to see if it works.
Ensure that the negative terminal is attached correctly to a switch before attempting a trial. In some capacitors, the black wire is connected to neutral while the brown wire is connected to the active, leaving the blue wire to go to one part of the run cap. The other part of the cap goes to the active and brown wire. Run the connection for a short time with one hand on the power switch and watch for smoke.Learn more about Electrical
Rheostat switches are electrical switches that contain a variable resistor, which allows them to finely adjust the amount of current passed along the attached circuit. Rheostat switches were once commonly used as dimmers for electric lights.Full Answer >
A light dependent resistor, or LDR, varies resistance in a circuit based on how much light shines on it. When fully illuminated, the LDR has no resistance and current flows freely, but with darkness the resistance increases and current flow stops. In most circuit designs, the LDR acts like an on/off switch based on how much light shines on it.Full Answer >
A rheostat is a variable resistor that is used to alter the amount of voltage or current in a circuit, according to HowStuffWorks. Rheostats make possible functions of electronics such as light dimmers and volume dials.Full Answer >
A linear resistor is a resistor whose resistance does not change with the variation of current flowing through it. In other words, the current is always directly proportional to the voltage applied across it.Full Answer >