US 12,294,221 B2
Anti-islanding protection and non-exporting tariff support
Joseph Matamoros, Chicago, IL (US)
Assigned to S&C Electric Company, Chicago, IL (US)
Filed by S&C Electric Company, Chicago, IL (US)
Filed on Apr. 18, 2024, as Appl. No. 18/638,949.
Application 18/638,949 is a division of application No. 17/524,160, filed on Nov. 11, 2021, granted, now 11,990,760.
Claims priority of provisional application 63/115,821, filed on Nov. 19, 2020.
Prior Publication US 2024/0283253 A1, Aug. 22, 2024
Int. Cl. H02J 3/38 (2006.01); H02H 7/26 (2006.01)
CPC H02J 3/388 (2020.01) [H02J 3/381 (2013.01); H02H 7/26 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for preventing distributed power generation export in a power distribution network, said network including a power line, a plurality of transformers electrically coupled to and positioned along the power line, each transformer including a source side switching device and a load side switching device, wherein source power is provided to both ends of the power line and wherein one of the switching devices is a normally open switching device, said method comprising:
determining apparent power at the source side of each of the transformers;
determining apparent power at the load side of each of the transformers;
comparing the determined apparent powers; and
opening the source side and load side switching devices in any transformer where the load side apparent power is greater than the source side apparent power.