![]() ![]() ![]() If temperature detectors are not installed or operable, winding temperature can be extrapolated using a time series of winding-resistance measurements taken after shutdown. In such cases, the winding temperature is usually around 5 to 10 C above the back-iron temperature. A thermocouple or RTD can be affixed to the stator core back iron, using proper electrical-safety precautions. Thermistors may require a controller, but thermocouples and resistance temperature detectors (RTDs) can be easily read with common, handheld meters and reference tables. If the motor is equipped with temperature detectors that are capable of providing readings, use them.Ī controller isn’t always necessary. Winding temperatures can’t be properly evaluated based on outside frame temperatures. ![]() Don’t conclude the winding is too hot by simply touching the motor’s frame. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |