IEEE 56 1997 Edition, January 1, 1997
Guide for Insulation Maintenance of Large Alternating-Current Rotating Machinery (10,000 kVA and Larger)
Includes all amendments and changes through Change/Amendment , 1997
Additional Comments: AVAILABLE ELECTRONIC ONLY * W/D NO S/S
This guide is intended to apply in general to large alternating-current rotating electrical machines rated at 10 000 kVA or more, and operating at voltages of 6000 V and above.
The purpose of this guide is to present information necessary to permit an effective evaluation of the insulation systems of large alternating-current rotating electrical machines. Such an evaluation can serve as a guide to the degree of maintenance or replacement which might be deemed necessary, and also offer some indication of the future service reliability of the equipment under consideration.