Abstract:

Residual voltage lockup closing logic is introduced into current insitu feeder automation technology, which can quickly isolate faults. A residual voltage module is added to the feeder automation terminal to implement the residual voltage lockup function. Based on electricity distribution terminal products of a company, a residual voltage module scheme which combines software and hardware is completed. Itrealizes the protection logic of voltagecurrenttime feeder automation and meets the technical standards issued by State Grid Company Limited according to tests.

Key words:

insitu type, feeder automation, residual voltage module