Power quality survey on Italian industrial customers: Paper industries

The paper deals with power quality (PQ) issues in the specific industrial sector of paper fabrication. In this sector a wide research activity has been performed at customers level in order to identify main susceptibilities of the industrial process and to determine costs associated to PQ events. To this aim data, made available both from production process logs and from electricity distributor protection system interruption recordings, have been used. Finally, some real figures of possible costs due to PQ problems have been identified and discussed in details.