The requirements in this standard apply to all types of 50 Hz and 60 Hz salient-pole synchronous generators and generator/motors rated 5 MVA and above to be used for hydraulic turbine or hydraulic pump/turbine applications.

The requirements in this standard apply to all types of 50 Hz and 60 Hz salient-pole synchronous generators and generator/motors rated 5 MVA and above to be used for hydraulic turbine or hydraulic pump/turbine applications. Salient-pole generators and generator/motors below this rating are generally covered by NEMA MG 1-2003 [B13].1

The purpose of this revision is two fold: 1) update the document to current industry standards and criteria, and 2) evaluate this document with IEC 34-1 and 34-3 and seek compatibility where it can be found, thus bringing the documents in closer harmonization.