purchase of spare parts for two ( 2 ) nos . 220v float and two ( 2 ) nos . 220v float cum boost chargers installed at powerhouse of teesta-v power station , fw/blocking/ tapcell diodes , filter capacitor3300mfd/450v , ventilation fan , w2e-250-cb 05/02 , mother board card ( 69-00242 ) for 220 v dc system , charger 220 tp400 make: hbl , firing card ( 69-00319 ) , charger 220 v dc tp400 make: hbl , control card ( 69-00118 ) part no . a3 , 23 charger 220 v dc tp400 make: hbl , power supply card ( 69-00120 ) part no . a4 , 44 charger 220 v dc tp 400 make: hbl , auxyliory card 69-0141 , charger 220 v dc tp400make: hbl , rc card 69-00003 220v , charger 220 v dc tp400make: hbl , led display card ( 69-0013 ) , charger 220 tp400 make: hbl , dc-dc converter card69-00076 , charger 220 tp400 make: hbl , time delay card ( 69-00169 ) , charger 220 v dc tp400 make: hbl , fuse fail card ( 69-0123 ) , charger 220 v dc tp400make: hbl , relay card ( 69-00215 ) for 220 v dc system , charger 220 tp400 make: hbl , heat sinks , 225 mm , heat sinks , 150 mm , i/p on-off mccb , 350a , 415v ac , 3p , 10ka , magnetic contactor , lc1-f500 lx4-fk220 , lad-n22 , 6a , 24 vdc , 3c/o type relay with 11 pin base , auxiliary relay , 220 volt charger rl6 16 , 6a , 240vac , 3c/o type relay with 11 pin base , control transformer , 50va , pri: 415v , sec1:18v , sec2:15v , sec3:15v , synchronising transformer , 10 va , pri:240v+- 10% , sec: 0-10v , 1a , charger 220 vdc tp 400 , choke ( fc& fcbc )