Anthony Sieracki 
Spina Electric Co.

Often during the rebuild and overhaul of a piece of electrical apparatus, we are faced with the challenge to identify the type of temperature detection devices that need to be replaced. The identification process should start at the beginning of the rebuild when the apparatus starts its way through the service center. Most major manufacturers identify the temperature detection device on a connection plate in the motor terminal box and many have a connection diagram indicating the type of device used. You can also refer to the manufacturer's catalog where they identify the type of temperature detector that has been used. Needless to say, it is usually too late to start identifying the temperature sensor after the winding is reclaimed and the device is now dust. Because that does happen, let's look at the styles and types of winding temperature detectors. Types of temperature detectors discussed include:

• Resistance Temperature Detectors (RTDs)
• Thermocouples
• Thermistors
• Thermostats

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Categories: Stators/windings, Miscellaneous, Temperature detectors

Tags: Temperature detection Resistance Temperature Detectors (RTDs) Thermocouples thermistors thermostats

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