supply of supply erection, testing and commissioning of igbt base constant current/constant voltage static battery charging/discharging panelsupply erection, testing and commissioning of igbt base constant current/constant voltage static battery charging/discharging panel,supply erection, testing and commissioning of igbt base constant current/cons tant voltage static battery charging/discharging panel for weak cells type-6 with no. of c ells to be charged 15 5-10 nos, output voltage: 30v, output voltage variation 10 to 30v, ou tput current 0 to 25a with regeneration discharge for 120ah batteries as per roso spec. no . rdso/pe/spec/ac/0008 (rev-2) or the latest note: the contractor shall undertake to train, free of cost the supervisors of the indian railways for operation, maintenance, fault findi ng, and repair of the offered equipment under the guidance of skilled engineers, during th e first year of the service of the equipment as per clause no.20.0 of rdso spec, no. rdso/pe/s pec/ac/0008(rev-2). [ warranty period: 30 months after the date of delivery ] ]