3-phase AC/DCelectric locomotives (6 000 HP) (GTO/IGBT) 3-phase AC/AC diesel electric locomotives (4 000 HP) Diesel electric multiple units ("DEMU") Diesel electric locomotives (upto 3 100 HP) 25 KV AC electric multiple units ("EMU") 3-phase AC/AC EMU (GTO) Kolkata Metro Propulsion system 3-phase AC-AC EMU (IGBT) Custom-built conventional hydro turbines of Kaplan Francis and Pelton types with matching generators pumps turbines with matching motor generators up to 300 MW (in speed range of 200-300 rpm) bulb turbines with marching generators upto 10 MW High capacity pumps along with matching motors for lift irrigation schemes (upto 150 MW) Diesel electric tower car SPV modules and sustems Concentrated solar power block RO-based water treatment plants All types of HT motors including squirrel cage motors slip ring motors and synchronous motors for safe/hazardous areas HT and LT alternators Electric locomotives (AC/DC) (5 000 HP) Electric multiple unit ("EMU") coaches Diesel-electric shunting locomotives ( uptoo 1 400 HP) Gas turbines of up to 280 MW (ISO advance class rating) Gas turbine-based co-generation and combined cycle systems Onshore rigs including deep drilling rigs super-deep drilling rigs (up to 9 000 m depth) heli-rigs work-over rigs (up to 6 100 m depth) mobile rigs (up to 3 000 m depth) desert rigs Rig equipment including draw works totary tables traveling blocks swivels masts and sub structures mud systems and rig electrics Well heads and Christmas trees (up to 10 000 psi rating). casing support systems mudline suspension systems and bloock valves Compressors for various process applications Power transformers (up to 1 200 kV) Shunt reactors (up to 765 kV) Dynamically controlled shunt reactors (up tp 400 kV) Medium and extra high voltage ("EHV") switchgear equipment