IEEE 56:2016

New IEEE Standard - Active.
This insulation maintenance guide is applicable to rotating electric machines rated from 35 kVA and higher. The procedures detailed herein may also be useful for insulation maintenance of other types of machines.

This insulation maintenance guide is applicable to rotating electric machines rated from 35 KVA and higher. The procedures detailed herein may also be useful for insulation maintenance of other types of machines.
The purpose of this guide is to present information necessary to permit an effective evaluation of the insulation systems of rotating electrical machines. Such an evaluation can serve as a guide to the degree of maintenance or replacement as might be deemed necessary, and also offer some indication of the future service reliability of the equipment under consideration.