Electric machines older construction fed from frequency converters

• Autorzy: Chmelik K. , Čech V.
• Języki publikacji: EN

Abstrakty

EN

The working life of electrical machines of great power (over 1MW) averages generally several decades. By the reconstruction of production aggregates due to saving of power in industrial or power enterprises and societies, the reconstruction of drive is often required but only with the existing electric motor. It goes for example about feeding of DC motor from rectifiers, use of slip-ring induction motor in subsynchronous cascade, feeding of asynchronous or synchronous motor from frequency converter with current or voltage intermediate circuit. Keeping of the same or slightly increased rated output and torque is supposed. The presentation of project, realization and practical operation experiences of such reconstructed drives in great enterprises should be the subject of this paper. Saving of power, EMC problems etc. will be presented.

Słowa kluczowe

EN

electric machines; lifetime; modernization; converters

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
• Rocznik: 2000
• Tom: Vol. 48, nr 20
• Strony: 230--236
• Opis fizyczny: Bibliogr. 3 poz.

Twórcy

autor

Chmelik K.

autor

Čech V.

• VSB - TU Ostrava