procurement of spare of 220v 1500ah chhabi make battery charger spares for ph-ii at sgtps birsinghpur , particular , float charger dc under -over voltage relay of solid state sensing type u/v . act . =236v , res=235v . o/v . act=242v , res=240v , u/v . nor=240v . , earth leakage relay ( imd ) of solid state senssing type , 220v/1-7ma , v-240v , transformer tr6 , transformer for timer supply 5va 456/230v , rc suge suppresson network for mr1 r=100 ohm/3watt , c=0 . 22 mfd/1000v , battery tap silicon blocker diode 300a/800piv without heat sink ( ssll 40551h capsule diode or equivalent ) for mr5 , , bleeder resistance 300w/250v , voltage dropping resistance for ffd & dc u-o/v 4k/50w ( rf , rs ) , voltage dropping resistance for e/l relay 3k/10w ( r4&r5 ) , filter condensor , 10 , 000mfd/200v ( fc1 & fc2 ) with fitting clamp ( 01 set*10 nos . ) , metal oxide varistor type surge suppressor rdn510/20 , fuse fail detector circuit of solid state sensing type for semiconductor fuses fs 7-12 of mr1 ( 270v ) , fuse fail detector circuit of solid state sensing type for semiconductor fuses fs 13-28 ( 220v ) , fuse fail detector circuit of solid state sensing type for semiconductor fuses fs 22-27 of mr3 ( 300v ) , hv pf/psr card with transformer for float & float cum boost charger 20v/415v/18-0-18v ) , alarm annunciation with audiable alarm and individual fault indicating leds with push button 144 sq . mm . window type , dc to dc convertor for above annunciation 240/24v , ip90-270v , dc over load relay of solid state sensing type . 5a , 220v , filtr choke :ch1 , rating :225a , filtr choke :ch2 , rating :263a , folat charger silicon blocker diode module 250a/1000 piv skkd260 or equivalent ) with heat sink 80ad-250mm , complete stack of mr2 , , folat cum boost charger silicon blocker diode with heat sink 80ad-300mm rating 320a/100piv ( skkd320 or equivalent ) complet stack of mr4 , , dc moving coil ammeter of size 96sq . mm 240 deg . deflcetion taught band type metr . with external shunt to rad discharge /charge current of battery , rating 800-0-300 code-am3 , 3 phase scr controller card for constant voltage constant current mode of operation for float charger for 220v 52r1 , 3 phase scr controller card for constant voltage constant current mode of operation for float cum boost charger for 220v 52r1 , dc-dc convertor module 24v to 12v / 1 . 5a pcb no 303 , external shunt for above discharge / charge meter 800a/75mv , new version type auxiliary contactor for ac main fail annunciation ( mx0 22e/2no+2nc ) rating 12a/415v ac coil , new version type auxiliary contactor for float/boost mode selection interlocked with dcu/v1 ckt . ( mx0 22e/2no+2nc 2 in parallel ) rating 2a/240v dc coil with series resistance 1k/10w , new version type auxiliary contactor interlocked with push button pb3 ( mx0 22e/2no+2nc ) rating 12a/415v ac coil , new version type three phase full controlled , full wave rectifier bridge comprising of 6 silicon controlled rectifiers completed with suitable heat sink & rc surge suppression network ( instead of old scr t150xm12fu supply scr module ) ( r=10 ohm/2000 & c=0 . 47mfd/1000v ) ratting: scr1-6= 162a/1000 piv r=1000 ohms/2w c=0 . 22mfd/1000v ( scr module skkt162=3 nos heat sink 80ad 200mm =3 nos ) , new version type three phase full controlled , full wave rectifier bridge comprising of 6 silicon controlled rectifiers completed with suitable heat sink & rc surge suppression network ( instead of old scr t170xu12fu supply scr module ) ( r=10 ohm/30w & c=0 . 47mfd/1000v ) ratting: scr7-12= 250a/ 100piv r=100 ohms /2w c=0 . 22mfd/1000 v ( scr module skkt250 =3 nos heat sink 80ad 200mm=3 nos ) , auxiliary relay for float , boost and equalizing mode selection interlocked with series resistance with dcu-o/v-2 ( 3c/ompc 110d-d ) ratting: a/110v dc coil with series resistance of 15k/10w