ExcDC1A: Modified IEEE DC1A direct current commutator exciter with speed input and without underexcitation limiters (UEL) inputs.
ExcDC2A: Modified IEEE DC2A direct current commutator exciter with speed input, one more leg block in feedback loop and without underexcitation limiters (UEL) inputs.
ExcDC3A: Modified IEEE DC3A direct current commutator exciter with speed input, and deadband.
ExcDC3A1: Modified old IEEE type 3 excitation system.
ExcELIN1: Static PI transformer fed excitation system ELIN (VATECH) - simplified model.
ExcELIN2: Detailed excitation system ELIN (VATECH).
ExcHU: Hungarian excitation system, with built-in voltage transducer.
ExcREXS: General purpose rotating excitation system.
ExcRQB: Excitation system type RQB (four-loop regulator, r?gulateur quatre boucles, developed in France) primarily used in nuclear or thermal generating units.
ExcSCRX: Simple excitation system with generic characteristics typical of many excitation systems; intended for use where negative field current could be a problem.
ExcST1A: Modification of an old IEEE ST1A static excitation system without overexcitation limiter (OEL) and underexcitation limiter (UEL).
ExcST2A: Modified IEEE ST2A static excitation system with another lead-lag block added to match the model defined by WECC.
ExcST3A: Modified IEEE ST3A static excitation system with added speed multiplier.
ExcST4B: Modified IEEE ST4B static excitation system with maximum inner loop feedback gain Vgmax.
ExcST6B: Modified IEEE ST6B static excitation system with PID controller and optional inner feedback loop.
ExcST7B: Modified IEEE ST7B static excitation system without stator current limiter (SCL) and current compensator (DROOP) inputs.
ExcitationSystemDynamics: Excitation system function block whose behaviour is described by reference to a standard model or by definition of a user-defined model.