| Abstract |
This paper presents experimental work related to MCSA (Motor Current Signature Analysis) based condition monitoring of subsea electrical equipment using induction motors. In the presented work an experimental motor setup intended for current analysis is expanded to include a frequency converter and a cable model, simulating a 20 km long subsea power
supply cable. The motivation for the work relates to the use of pumps in subsea oil and gas production. The presented work, which includes experiments on induction motors with different fault configurations, shows that it is possible to detect certain fault conditions in an induction motor using MCSA, also when the power system includes a frequency converter
and/or long cable lengths. Even though it is not possible to directly transform the results from these experiments
to a subsea oil and gas production system, the experimental results indicate that neither the use of a frequency converter nor the implementation of long cable lengths will be limiting factors for MCSA condition monitoring of subsea induction motors. |
