MEASUREMENT AND QUANTITATIVE EVALUATION OF INVERTER-INDUCED BEARING CURRENTS

Dušan Agrež, Gregor Vidmar, Damijan Miljavec
Abstract:
In this paper, new criterion for evaluation of endangerment of bearings due to bearing currents – the trend line of the Joule integral of bearing current - is proposed. Suggested is the measurement procedure for bearing currents with selection of appropriate sensor. An analysis, which is the basis for selection of current sensor for bearing current measurement, is presented. The shunt sensor as most appropriate sensor was implemented into measurement procedure and experimental measurements were performed on 1.6 kW brushless direct current (BLDC) motor.
Keywords:
bearing currents, current sensor, Joule integral, level of endangerment of bearings
Download:
IMEKO-WC-2012-TC10-O3.pdf
DOI:
-
Event details
Event name:
XX IMEKO World Congress
Title:

Metrology for Green Growth

Place:
Busan, REPUBLIC of KOREA
Time:
09 September 2012 - 12 September 2012