Method for automatic assessment of electric motor condition before its startup

Author

Grebchenko, N.V. ; Kozhukhar, A.V.

Author_Institution

Donetsk Nat. Tech. Univ., Kiev, Ukraine

fYear

2015

fDate

3-5 March 2015

Firstpage

1

Lastpage

6

Abstract

A new method for identification of defects in winding insulation of switched off electric motors connected by a cable to a power source. To assess condition of a motor, rectangular voltage pulse is applied to one of motor connection phases. Mathematical simulation and experimental studies of motors with defects have shown that AC voltage between phases emerges at the subsequent discharge of interphase capacitances. Frequency of such voltage is a function of defect and location of its origin. This method can be applied for three phase motors of all transport vehicles and industrial plants motors, which are cable jointed.

Keywords

electric motors; machine insulation; machine windings; power cable insulation; road vehicles; AC voltage; automatic assessment; defect identification; electric motor condition; industrial plants motors; interphase capacitances; motor connection phase; power cable; power source; rectangular voltage pulse; startup; switched off electric motors; three phase motors; transport vehicles; winding insulation; Cable insulation; Capacitance; Discharges (electric); Resistance; Stator windings; Windings; electric motor; experiment; insulation damage; simulation; winding insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS), 2015 International Conference on

Conference_Location

Aachen

Type

conf

DOI

10.1109/ESARS.2015.7101475

Filename

7101475