- Tytuł:
-
Układ izolacyjny wysokonapięciowych silników indukcyjnych pracujących w ciekłych gazach
Insulation system of high voltage induction motors operated in liquid gases - Autorzy:
-
Azarewicz, S.
Węgliński, B. - Powiązania:
- https://bibliotekanauki.pl/articles/1373808.pdf
- Data publikacji:
- 2009
- Wydawca:
- Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
- Tematy:
-
silnik indukcyjny wysokonapięciowy
układ izolacyjny
izolacja
ciekły gaz - Opis:
- Issues concern selection of windings insulation system of high voltage cage induction motors predicted for operation in liquid gases, and particularly in liquid natural gas (LNG), are described in the paper. Particular attention was put on turn-to-turn insulation and the main insulation of coils. Basic differences, which take place at selection of these insulations for motors working in liquid gas and typical conditions, are discussed. Dielectric liquid gas interaction on the coil insulation system is very positive regarding its electrical strength, due to removal effects of eventual cracks of the insulation, as effect of such cracks filling with gas being dielectric. Simultaneously, cooling down of the winding to very low temperature introduce hazards created by possible freezing of moisture content in eventual porosity of the insulation, and relocation of the winding wires caused by thermal shrinkage of the system. Such relocation can cause turn-to-turn short-circuits, due to rubbing of the wire insulation. Results of techno-climatic tests of materials and insulating system selected for application in the model motor of power 785 kW; and voltage 6 kV, predicted for operation in LNG (at temperature -161°C), are presented. Proposals and design recommendations, concern insulating system of such type of high voltage motors, were elaborated on the base of the above mentioned insulating materials and system tests.
- Źródło:
-
Maszyny Elektryczne: zeszyty problemowe; 2009, 82; 159-163
0239-3646
2084-5618 - Pojawia się w:
- Maszyny Elektryczne: zeszyty problemowe
- Dostawca treści:
- Biblioteka Nauki
Artykuł