Motor Winding Thermistor Wiring Diagram - Wiring Draw And Schematic

When talking about motor winding thermistor wiring diagrams, it’s important to understand the basics of how a thermistor works. A thermistor is a special type of resistor that’s designed to be sensitive to changes in temperature. The resistance of the thermistor decreases as its temperature goes up, and increases as its temperature goes down. This property makes thermistors perfect for applications in which you need to monitor and control temperatures.

When wiring a thermistor in an electric motor winding, the idea is to connect the thermistor in such a way that it can sense the temperature of the winding. This is an important safety feature, as an overheated winding can cause serious damage to the motor. The wiring diagram will depend on the type of motor and the circuit configuration, but the goal is always the same: to provide an electrical connection between the thermistor and the control circuitry, so that the thermistor can accurately measure the temperature of the winding.

For example, if the motor winding is connected to a three-phase power supply, the thermistor will usually be wired in series with one of the phases. This allows the thermistor to measure the temperature of the winding by measuring the voltage drop across its terminals.

If the motor winding is connected to a single-phase power supply, the thermistor may be connected in parallel with the winding. This allows the thermistor to measure the current that’s flowing through the winding, which gives an indication of the winding’s temperature.

In both cases, the wiring diagram should also include a series resistor. This resistor prevents the thermistor from being damaged by high voltages or currents. The resistor should be chosen based on the characteristics of the thermistor and the voltage of the power source.

Finally, any motor winding thermistor wiring diagram should also include a means of connecting the thermistor to the control circuitry. In most cases, this will involve running cables from the thermistor to the control system, which can be done through the use of suitable cable glands or junction boxes.

Motor winding thermistor wiring diagrams are an essential component of any motor system, as they allow the temperature of the winding to be monitored. By understanding the basics of thermistor operation and studying the relevant wiring diagrams, you can ensure that your motor winding is kept at safe temperatures.

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