Historical
IEC/TS 60034-16-2 Ed. 1.0 b:1991
Rotating electrical machines - Part 16: Excitation systems for synchronous machines - Chapter 2: Models for power system studies
Recommends modelling guidelines and appropriate models for excitation systems for use in power system stability studies and includes a nomenclature defining the parameters and variables used.
International Electrotechnical Commission [iec]