Partial discharges in high-voltage insulation of turbogenerators

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F10%3A00503639" target="_blank" >RIV/49777513:23220/10:00503639 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Partial discharges in high-voltage insulation of turbogenerators
Original language description
This paper is aimed at the development of one of the main turbogenerator diagnostic methods partial discharge galvanic measuring on high-voltage stator winding insulation. For this purpose the stator slot model with inserted stator bars which, in maximalpossible measure, respect the real machine electrode configuration were constructed. Artificial defects were created on stator bar samples similar to those which may occur during the technological production process or the machine operation. Samples with a large scale of types of defects like delamination from copper stack, interlayer delamination, stress grading tape on the slot exit, defects on external corona protection in the slot part and samples with undamaged insulation were analyzed in detail.Partial discharge patterns of these defects show considerable dissimilarities. Individual measurements were analyzed and compared in term of phase distribution of measured discharge levels and count of discharge occurrence. Obtained resul
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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