Substation Wiring Diagrams. S c sul 20 2a 2b wa. The main function of the substation is to collect the energy transmitted at high voltage from the generating station and then reduce the voltage to an appropriate value for local distribution and gives facilities for switching.
Incoming or power feeder connection 33kv incoming line power transformer connection via lighting arrestor busbar. This document is a reference for the constructors of ergon energy substations and it covers all aspects of substation construction for both greenfield and brownfield substation projects to meet the performance expected by ergon energy. The single line diagram of the 33kv substation is depicted in the figure below.
S c sul 20 2a 2b wa.
The relays are attached to the main line via a number of current transformers. The connection of the substation is divided as. The mini power zone unit substation uses a separate transformer and panelboard section. Single line to ground two line to ground.