Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

voltage-behind-reactance model
a representation of a machine in which the stator voltage equations are modeled as a voltage source in series with a reactance (and typically a resistance). The voltage source represents the back emf present on the stator windings due to the coupling between the stator and rotor circuits. In synchronous machine modeling, several different voltage-behindreactance models have historically been used, wherein approximations are used to represent the machine in various detail.