The first results of investigations having the purpose to evaluate how Sweep Frequency Response Analysis (SFRA) and Frequency Dielectric Spectroscopy (FDS) can reflect the changes of insulation system of MV induction motors, are discussed in this paper. These methods, together with dissipation factor and partial discharge (PD) measurements, were applied to evaluate complete machines having moisture contamination, internal delaminations, end-winding displacements and other defect typologies. The results are compared with those obtained testing twin machines in good conditions, used as a reference. It is shown that a more complete diagnostic information can be obtained integrating the test results of PD, SFRA and FDS test methods.

Evaluation of Rotating Machine Insulation Using SFRA and FDS Testing

CONTIN, ALFREDO;
2013

Abstract

The first results of investigations having the purpose to evaluate how Sweep Frequency Response Analysis (SFRA) and Frequency Dielectric Spectroscopy (FDS) can reflect the changes of insulation system of MV induction motors, are discussed in this paper. These methods, together with dissipation factor and partial discharge (PD) measurements, were applied to evaluate complete machines having moisture contamination, internal delaminations, end-winding displacements and other defect typologies. The results are compared with those obtained testing twin machines in good conditions, used as a reference. It is shown that a more complete diagnostic information can be obtained integrating the test results of PD, SFRA and FDS test methods.
Rotating Machines; Insulation System; SFRA and FDS
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2701033
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact