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SM ISO690:2012 ENGSTER, Filip. Measurement methods and interpretation algorithms for the determination of the remaining lifetime of the electrical
insulation
. In: Problemele Energeticii Regionale, 2005, nr. 1, pp. 1-6. ISSN 1857-0070. |
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Problemele Energeticii Regionale | ||||||
Numărul 1 / 2005 / ISSN 1857-0070 | ||||||
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Pag. 1-6 | ||||||
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The paper presents a set of on-line and off-line measuring methods for the dielectric parameters of the electric
insulation as well as the method of results interpretation aimed to determine the occurence of a damage and to
set up the its speed of evolution. These results lead finally to the determination of the life time under certain
imposed safety conditions.
The interpretation of the measurement results is done based on analytical algorithms allowing also the
calculation of the index of correlation between the real results and the mathematical interpolation.
It is performed a comparative analysis between different measuring and interpretation methods.
There are considered certain events occurred during the measurement performance including their causes.
The working-out of the analytical methods has been improved during the during the dielectric measurements
performance for about 25 years at a number of 140 turbo and hydro power plants.
Finally it is proposed a measurement program to be applied and which will allow the correlation of the on-line
and off-line dielectric measurement obtaining thus a reliable technology of high accuracy level for the
estimation of the available lifetime of electrical insulation. |
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