The paper introduces a new approach for voltage balance monitoring based on the computer-aided assessment of the network Instantaneous Voltage’s Space Phasor (IVSP). Between the voltage unbalances severities and the IVSP modulus ripples or the IVSP angular speed ripples are identified the appropriate correspondences which are used for voltage unbalance quantifications. The investigative studies of this new voltage unbalance approach are made on a simulated network in Simplorer programming medium.