Potential distribution on stress grading of inverter-fed rotating machines under DC biased voltage

Autor: Tomohito Kisakibaru, Sakurai Takayuki, Kunihiko Hidaka, Akiko Kumada, Nakamura Takahiro, Hisatoshi Ikeda, Yuichi Tsuboi, Tetsuo Yoshimitsu, Steven A. Boggs
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Journal of International Council on Electrical Engineering, Vol 6, Iss 1, Pp 36-42 (2016)
ISSN: 2234-8972
Popis: The erosion of the stress grading system of converter-fed rotating machines may occur by partial discharges and heat generation. There remain unclear issues in the formation of the potential and temperature distributions along the stress grading system of coils. In this paper, the potential distributions on the stress grading system of the model coil bar are measured under the application of 1 kHz square wave voltages of 10 kV in peak to peak value with/without 5 kV DC biased voltage. It turns out that DC bias voltage has little effect on potential distribution on a coil surface.
Databáze: OpenAIRE