supply of supply, testing, installation and commissioning of vectorial delta-i relay suitable for 132 kv / 25kv traction sub-station (tss) , supply, testing, installation and commissioning of vectorial delta-i relay suitable for 132 kv / 25kv traction sub-station (tss), complete with mounting hardware, wiring accessories, terminals and all n ecessary fittings, ready for operation in all respects, suitable for ashida make panel and fully suitable for th e existing traction sub-station protection scheme and associated ct arrangements. the offered relay shall comply with rdso specification no. ti/spc/psi/protct/6072 or latest applicable specification, including all applicable amendments/corrigenda. the scope shall include necessary testing, relay settings, integration w ith the existing protection system and commissioning at site, complete in all respects. [ warranty period: 30 months after the date of delivery ] ]