Electrical power is mainly produced by three-phase generators. This applies to power stations as well as to standby power supplies and wind generators. In addition to the basic experiments dealing with three-phase synchronous generators, the experiments involving the “EUG” module include manual and automatic synchronizing circuits as well as experiments on the automatic power factor control (cos-phi control) and power control. Thus, the ”EUG“ module can be used to simulate power station operation in stand-alone (isolated) or interconnected operation.