IEC 60034-4-1:2018-Rotating electrical machines-Part 4-1: Methods for determining electrically excited synchronous machine quantities from tests, IEC 61143-1:1992+AMD1:1997 CSV-Electrical measuring instruments-X-t recorders-Part 1: Definitions and requirements, IEC 60819-3-2:2001-Non-cellulosic papers for electrical purposes-Part 3: Specifications