Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805
Diagnostics of technical condition of the insulation of electrical machines in variable frequency drives

Factors of negative impact on motor insulation, powered by a frequency converter with PWM, are considered. A model of the electric drive including parameters of frame insulation is developed. A method for leakage current measurement and monitoring of insulation state is proposed.

  1. Серебряков А.С. Определение параметров схемы замещения корпусной изоляции тяговых электродвигателей / А.С.Серебряков // Электротех-ника. – М.: ЗАО Знак,2009. –№ 5. – 90 с.
  2. Худий Є.Г. Визначення технічного стану ізоляції електричних машин випробувальною напругою широкого діапазону частот / Є.Г. Худий, І.І. Пельтек// Гірнича електромеханіка та автоматика: Наук.-техн. зб. – 2011. – Вип.86. – С.197-203.
  3. Ernesto J. Wiedenbrug. Overheating electric motors: one root cause of insulationfailure / Ernesto J. Wiedenbrug// Baker Instrument Company. – 2007.
  4. Václav Mentlík.The influence of pulse stress on main-wall insulation of electric rotating machines/ Václav Mentlík,Josef Pihera, Ondrej Táborík, Pavel Trnka// Zeszyty Problemowe – Maszyny Elektryczne. – 2007. – Nr 77.
  5. Zdeněk Peroutka. Motor insulation breakdowns due to operation of frequency converters / Zdeněk Peroutka // IEEE Bologna power tech conference – 2003. – 237 p.
Last download:
5 Jan 2020

[ © KarelWintersky ] [ All articles ] [ All authors ]
[ © Odessa National Polytechnic University, 2014-2018. Any use of information from the site is possible only under the condition that the source link! ]