These are LT panels housed in an out door chamber. Inside houses an ACB or MCCB’s.These units are fed from transformer secondary direct for isolation of the power Controls center of the premises. They may be connected from the transformers through cable or through bus ducts. Generally Bus ducts supply directly supplies to PCC. But in special cases it supplies to outdoor kiosk and there on to PCC incomer.
Villa distribution feeders derive their supply from the transformers own by electricity authorities. These feeders are generally kept under lock and key. From here individual villas are fed through salable meters kept at the owners premises. The load is connected through ACCL which selects DG or EB supply. These are generally out door panels.
The feeder pillers also contain a loop in loop out system with selection between 2 transformer supplies. So that failure of one supply entails use of the other through a changeover system.