Nowoczesne metody diagnostyki izolacji silników i generatorów WN

• Autorzy: Subocz J. , Szrot M. , Płowucha J.

Warianty tytułu

EN

Contemporary diagnostic methods of HV rotating machine insulation

• Konferencja: Problemy eksploatacji maszyn i napędów elektrycznych (2006; Ustroń, Polska)
• Języki publikacji: PL

Abstrakty

EN

This paper presents degradation mechanism of epoxy-mica-glass insulation and influence of service conditions on kinetics of this mechanism. But the most important factor here is production quality. Basics of dielectric spectroscopy in time and frequency domain were described and application of this method for estimation of HV insulation condition. Research conducted on insulation models showed that good indicators of insulation condition are value of charge and time of relaxation in low frequencies range. There was given an example of FDS measurements application for estimation of quality of technology in postproduction tests. Other examples showed classification of HV motors and generators insulation with various periods of service based on FDS method and voltage ramp test. Relaxation processes analysis in low frequencies domain in epoxy-mica-glass insulation has corroborated high conformity of laboratory measurement results of insulation samples with service tests of HV motors. This method is very accurate and allows to identify defective production technology and insulation aged in service.

Słowa kluczowe

PL

diagnostyka izolacji; izolacja maszyn WN; relaksacja dielektryczna; metoda FDS

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2006
• Tom: Nr 74
• Strony: 121--127
• Opis fizyczny: Bibliogr. 9 poz., tab., rys.

Twórcy

autor

Subocz J.

autor

Szrot M.

autor

Płowucha J.

• Politechnika Szczecińska, Instytut Elektrotechniki, Szczecin,

Bibliografia

• [1]. Tanaka T.: "Aging of Polymeric and Composite Insulating Materials. Aspects of Interfacial Performance in Aging", IEEE Trans. DEI, vol.9. No 5, (2002),pp.704-716
• [2]. Kimura K., Kaneda Y.: "The Role of Microscopic Defects in Multistress Aging of Micaceous Insulation", IEEE Trans. DEI, vol.2, (1995), pp.426-432
• [3]. Subocz J.: "Wybrane zagadnienia przewodnictwa i relaksacji dielektrycznej w aspekcie diagnostyki izolacji", Prace Naukowe Politechniki Szczecinskiej, Nr 580, Szczecin, 2003
• [4]. Seifert J.M., Stietzel U., Kärner H.C.: ,,The Aging of Composite Insulating Materials-New possibilities to detect and classify ageing phenomena with dielectric diagnosis tools", IEEE Symp. on El. Insul. Virginia, USA, (1998), pp.373-377
• [5]. Schrijver C, Herden A., Karner H.: "Fundamental Ageing Mechanisms of Fibre Reinforced Polymer (FRP) Insulators", 10th ISH, Montreal, (1997)
• [6]. Ban D., Cettolo M., Miletic B.: "Electrical Motor Insulation Conditions dc Testing", IEEE Trans. DEI, vol.5. No 6, (1998), pp.917-921
• [7]. Rux L., McDermid W.: "Assesing the Condition of Hydrogenerator Stator Winding Insulation Using the Ramped High Direct-Voltage Test Method", IEEE Electrical Insulation Magazine, vol.17, No 6, (2001), pp.27-33
• [8]. Subocz J.: ,,Dielectric spectroscopy of insulation composite materials", IEEE 7th Inter. Conf. on Solid Dielectric, Eindhoven, (2001), pp.333-336
• [9]. Subocz J.: "Influence of vibrations on dielectric properties of "epoxy-mica-glass" insulation", Proc. Inter. Conf. APTADM-04, Wrocław, (2004), p.212-215