Utility power supply system requires equal loading on all phases.  The traction power system works on 25kV single phase. It is important to use all the three phases equally and convert them into one phase traction supply.  This is achieved by feeding single phase supply to the adjacent traction substation which is separated by a neutral section. Each feed covers a distance of about 30-40 km, feeding all the trains in that zone. By theory of probability, equal number of trains in feed zone are expected to draw same load current to avoid imbalance of the utility power supply system. 

Keeping into consideration the wear and tear nature of railway systems, the existing PTFE short neutral needed to be redesigned. In a collaborative effort with Railway authorities, Raychem RPG indigenously developed Short Neutral Section for 25 KV line based on moving roller-based technology.  The retrofit system completely eliminates issues of regular maintenance and servicing.  Also, the new design significantly reduced carbon footprints.