METHOD OF RELAY PROTECTION OF POWER FACILITIY Russian patent published in 2017 - IPC H02H3/40 

FIELD: electricity.

SUBSTANCE: according to the method of relay protection of a power facility in the electric network by converting information about the facility in two-dimensional signals, each displayed on a corresponding plane, the training of relay protection from the first simulation model of the network, reproducing the controlled modes of the substation, and from the second simulation model, reproducing the network modes, alternative to the controlled modes of the power facility, a separate display of a plurality of controlled modes and, respectively, a plurality of alternative modes in the form of the first and, respectively, the second regions on the surfaces of two-dimensional signals, fixing of currents and voltages in the facility observing field in the current mode of damage and during the previous mode, the observed currents and voltages of the current and, respectively, the previous models are transformed into the first and, respectively, the second voltages, for which the observable values are treated in the transmission model of the undamaged facility, from each pair of the corresponding first and second voltages, a two-dimensional signal is formed and the protection operation is allowed, if during the facility observation, each two-dimensional signal is displayed in the corresponding first region, but not every two-dimensional signal is displayed in the corresponding second region.

EFFECT: extension of the functionality of the trained relay protection.

5 cl, 10 dwg