Development of an on-line monitor to measure motor voltage surges

Author

Stone, G.C. ; Campbell, S.R.

Author_Institution

Iris Power Eng. Inc., Etobicoke, Ont., Canada

fYear

1997

fDate

22-25 Sep 1997

Firstpage

397

Lastpage

399

Abstract

Voltage surges from switchgear have long been known to lead to stator winding turn insulation failure in large form wound motors. With the widespread introduction of inverter fed drives (IFDs), it now appears that repetitive surges from the IFDs can lead to gradual deterioration and failure. An inexpensive monitor has been developed which continuously measures the risetime, magnitude and repetition rate of surges which strike a motor. In addition to measuring the basic risetime and magnitude data, the monitor also estimates the impact of the total surge history on the life of the insulation. Prototype testing of the system is extremely advanced

Keywords

computerised monitoring; insulation testing; life testing; machine insulation; motor drives; stators; surges; voltage measurement; insulation life; inverter fed drives; large form wound motors; motor voltage surges measurement; on-line monitor; prototype testing; repetitive surges; stator winding turn insulation failure; switchgear voltage surges; total surge history;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference, 1997, and Electrical Manufacturing & Coil Winding Conference. Proceedings

Conference_Location

Rosemont, IL

ISSN

0362-2479

Print_ISBN

0-7803-3959-2

Type

conf

DOI

10.1109/EEIC.1997.651162

Filename

651162