A new approach to the diagnosis of solid insulation systems based on PD signal inference

Author

Cavallini, A. ; Montanari, G.C. ; Contin, A. ; Pulletti, F.

Author_Institution

DIE-LIMAT, Bologna Univ., Italy

Volume

19

Issue

2

fYear

2003

Firstpage

23

Lastpage

30

Abstract

The authors have developed digital instrumentation that can measure the amplitude, shape, phase, and number of pulses per cycle. Examples are given of results obtained from an induction motor, a hydrogenerator, a polymeric cable system with a defective joint, and a high-voltage current transformer.

Keywords

cable jointing; current transformers; digital instrumentation; hydroelectric generators; induction motors; insulation testing; machine insulation; partial discharge measurement; power cable insulation; power cable testing; signal detection; PD pulse signals detection; PD signal inference; basic defect characteristics identification; defective cable joint; digital instrumentation; high-voltage current transformer; hydrogenerator; induction motor; noise rejection; partial discharge measurement; polymeric cable system; pulses per cycle number measurement; signal separation; solid insulation systems diagnosis; Induction motors; Instruments; Phase measurement; Polymers; Power transformer insulation; Pulse measurements; Pulse shaping methods; Pulse transformers; Shape measurement; Solids;

fLanguage

English

Journal_Title

Electrical Insulation Magazine, IEEE

Publisher

ieee

ISSN

0883-7554

Type

jour

DOI

10.1109/MEI.2003.1192033

Filename

1192033