Indian Railways has planned to tap 1000 MW solar energy in ensuing five years.500 MW from railway platform roof tops & rest from other official ancillary complexes to supplement traction load. Roof-Top spaces are ample considering long & wide railway platform at stations in India. TSS in railway traction power supply is placed for each 50 to 90 km segment along railway track for UP & DOWN routes. It is possible to design suitable scheme that can be interfaced for direct connection to 25 kV AC system at TSS locations on 4 to 5 average railway platforms from Bhusawal via Jalgaon, Pachora Nandgaon, Manmad, Lasalgaon, Niphad, Nashik Road ,Igatpuri & Kasara Stations. Considering roof top area of 1000 to 5000 sq-metre, it is possible to install solar panels which can generate 100 kW to 500 kW. Saving with conventional Energy intake from utility to the tune of 30 to 40 %. It has been physically seen on live train passing that the load varies from few hundred kW to 3 or 4 MW for duration of few seconds to minutes. Neutral sections facilitate balanced loading on all three phases of utility as the phases R, Y & B are loaded in sequence. This paper explores the ever-tried model of direct solar power feed from railway platform rooftops to 25 kV AC traction supply using dynamic inter-phase power flow technique in real time with all associated balance of equipment’s.
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