tender for linear induction motor (lim) based propulsion system in kolkata metro rolling stock with 1 year warranty for the entire works , design,development,supply,integration,testing and validation of three complete linear induction motot(lim) propulsion system , battery pack: high-voltage 750v dc battery system specially designed for lim propulsion. capable of peak 2c discharge for 800 kw lim requirements. includes bms, cooling interface, safety interlocks, emi shielding, structural enclosure, busbars, hv connectors. cost also includes battery integration, mounting assembly, testing and certification. , inverter: high-power 750v input, 1.6 mva output for heavy linear motor load. three-bridge topology for high efficiency and controllability. includes power stage, gate drivers, protection circuits, cooling plates, enclosure and emi/emc certified design. customised software for lim operation and slip frequency control. , lim propulsion control and communication system: industrial-grade vcu for motor control, safety logic, braking control, air-gap feedback processing. includes real-time communication modules (can, rs485, ethernet). programmable with complete motor control algorithm integration. required for synchronising inverter, lim, battery and safety subsystems. , cooling and suspension system for lim: system maintains 5-10 mm air gap during acceleration, braking, gradient change and cornering can includes passive/active suspension linkages, linear actuators or pneumatic dampers, cooling system (liquid or forced air), control valves, sensors, wiring harness, structural frames and test rig development, crucial for maintaining lim thrust output and preventing performance loss. , linear induction motor: includes core laminations, custom windings, epoxy insulation, magnetic steel, end-plates, terminal boxes, thermal sensors. tooling & mould cost for primary manufacturing included. designed for heavy thrust requirements. includes magnetic design, fea validation, prototype build & testing. , product development and demonstration , technical manpower , development cost, including lab equipments, tools etc , specialised software for simulations