supply, installation and commissioning of equipments / machineries at electrical machine laboratory under electrical engineering department, ttaadc polytechnic institute, khumulwng, west tripura supply, installation and commissioning of equipments / machineries at electrical machine laboratory under electrical engineering department, ttaadc polytechnic institute, khumulwng, west tripura , determination of open circuit characteristics of d.c. machine ( complete experimental setup ) , speed control of d.c. motors using armature control and field control methods ( complete experimental setup ) , to perform field test on two identical d.c. series machines ( complete experimental setup ) , to perform hopkinson test on two identical d.c. machines ( complete experimental setup ) , to perform o.c. and s.c tests on single phase transformer ( complete experimental setup ) , to perform load test on single phase transformer ( complete experimental setup ) , scott connections of single phase transformers ( complete experimental setup ) , determination of equivalent circuit parameters of single phase induction motor ( complete experimental setup ) , to determine the equivalent circuit parameters of three phase induction motor ( complete experimental setup ) , to perform brake test on 3-phase induction motor ( complete experimental setup ) , to make circle diagram of 3-phase induction motor ( complete experimental setup ) , to perform speed control of 3-phase induction motor ( complete experimental setup ) , to perform single phase operation of three phase induction motor ( complete experimental setup ) , to perform regulation of 3-phase alternator by synchronous impedance method ( complete experimental setup ) , to perform parallel operation of alternators ( complete experimental setup ) , dc power source 0-230vdc, 40a dc rectifier unit , dc power source 0-230vdc, 70a dc rectifier unit , single and three phase resistive load features , single phase auto-transformer, 10a , three phase auto-transformer, 10a , single tube rheostat : 0-50 ohm, 10a , single tube rheostat : 0-100 ohm, 5a , single tube rheostat : 0-250 ohm, 2a , single tube rheostat : 0-3 ohm, 5a ( hand sliding type ) , insulation testing megger , earth testing megger