Actually, the Existing Micro - Savonius Vertical Axis Wind Turbine (VAWT) was connected to DC motor not a generator.
The wind blow from the air compressor of air conditioner as a source to rotate the blade of the Existing Micro - Savonius Vertical Axis Wind Turbine (VAWT).
The rotor blade was connected to the DC motor. Since the rotor blade was connected to the DC motor, so the output was Direct Current (DC).
Then, I measure voltage and current at the terminal of DC motor.