The model of double-cage induction motor for the analysis of thermal fields in transient operations

• Autorzy: Mróz J.

Identyfikatory

DOI

10.1515/aee-2017-0030

• Języki publikacji: EN

Abstrakty

EN

Emergency motor switch-on happens occasionally while operating a doublesquirrel- cage motor at full supply voltage with the rotor blocked (e.g., in coal mills). After releasing the blockage, the by now heated motor is started up again. However, the mechanical stress caused by the increased temperature poses considerable hazards to the squirrel-cage winding. This paper presents a double-cage induction motor model for analysis of thermal fields in transient operation. The thermal field for the rotor of a doublesquirrel- cage motor of soldered or cast structure, operating in the conditions described, has been calculated in the present paper using a thermal network method. Measurement results have been presented for the double-squirrel-cage winding temperature for a soldered cage construction in the blocked rotor state.

Słowa kluczowe

EN

AC motors; heating; induction motors; squirrel cage motors; temperature rise

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2017
• Tom: Vol. 66, nr 2
• Strony: 397--408
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wz.

Twórcy

autor

Mróz J.

• Rzeszow University of Technology

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).