Partial discharges in high-voltage insulation of turbogenerators

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Partial discharges in high-voltage insulation of turbogenerators

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Partial discharges in high-voltage insulation of turbogenerators

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ICSD 2010

ISBN

978-1-4244-7944-3

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

Potsdam

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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