METHOD AND DEVICE FOR PROTECTION ZONES SELECTION IN ASSEMBLY WITH MULTIPLE BUSBARS Russian patent published in 2015 - IPC H02H3/00 H02H7/26 

FIELD: electricity.

SUBSTANCE: present invention relates to the method of protection zones in assembly with c multiple busbars (11), at that the assembly with multiple busbars contains busbar zones (ZA1, ZB1, ZC1, ZA2, ZB2, ZC2) and cubicles (FB-1, BC-1, BS, BC-2, FB-2), connected with the busbar zones (ZA1, ZB1, ZC1, ZA2, ZB2, ZC2), at that the cubicles (FB-1, BC-1, BS, BC-2, FB-2) contain measuring transformers (CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8). This method includes the following stages: reception of first data about connection containing information on work state of the measuring transformer connections with busbar zone; identification of all pairs of the made connections of the busbar zone with busbar zone based on the first data about connection; comparison of data corresponding to the pairs of made connect ions of busbar zone with busbar zone; selection - based on the comparison - of each pair of busbar zones, having the busbar zone being common, at least with other pair of made connection of busbar zone with busbar zone, corresponding to the busbar zone; and assignment of any busbar zone that is not connected to any another busbar zone as protection zone.

EFFECT: development of effective method of protection zones selection in assembly with multiple busbars.

12 cl, 4 dwg