what is generator mvar
The generator MVAR is controlled by its own AVR and power factor controller. Provided you generate within the acceptable power/power factor envelope for the alternator you will have no problems. It is normal to generate with a lagging power factor between 0.8 and 1.0.his is also called over-excitation; most generators are built to provide VARs to assist with voltage support on the electrical grid. Decreasing excitation below that required to maintain generator terminal voltage equal to the electrical grid voltage causes VARs to flow into the generator.