but why would the meter display 80 VA and 0 W?
could be explained by a large inductance which sets the current at 90 ° of the voltage, in the system of use, which then recovers only peasants of real useful real power, and full of VA, current to 90 ° of the tension, following the basic course !!
Do you have to see your editing, use and where do you measure?
Before the three-phase rectifier that debits on what real or after conversion to 50Hz ??
Good luck, in the unknown, without any valid information on the windmaster.