Tender For supply of single phase battery charger , the charger will consists of main transformer d.w.copper winding single phase rectifier to give d.c.output voltage 110v to 150v/60amp input 230v single phase 50hz. the voltage and current will be controlled by fine and coarse control rotary switch 40amp 1pole make-(balson/switchon/kaycee). thecharger will have d.c. output ammeter/voltmeter, input mcb, ac fuse, pilot lamp to indicate mains on fan will be provided for cooling. the charger will be housed in m.s.angle/sheet powder siemens grey cabinet with wheel. [ warranty period: 30 months after the date of delivery ]
Tender For supply of e4653108 for magnetics of auxiliary converter for kolkata metro project : : - e4653108 magnetics 01-bp9048116651-input filter inductor for auxiliary converter as per item-1 of ps407575 rev00 , 02-bp9048116660-buck converter output inductor for auxiliary converter as per item-2 of ps407575 rev00 , 03-bp9048116678-sine filter inductor for auxiliary converter as per item- 3 of ps407575 rev00 , 04-bp9048116686-dc-dc converter resonant inductor for auxiliary converter as per item-4 of ps407575 rev00 , 05- bp9048116694-filter inductor at bridge rectifier output for auxiliary converter as per item-5 of ps407575 rev00 , 06-bp9048116708-switching inductor for buck chopper for auxiliary converter as per item-6 of ps407575 rev00 , 07-bp9048116716- high frequency transformer for auxiliary converter as per item-7 of ps407575 rev00
Tender For supply of spares for electrotechnica panels and breakers d d ? g? g-- shunt trip coil assembly part no v0021 , elect. release coil assly part no v0022 , auxillary switch assembly part no v0024 , soloinoid coil for closing mechanism part no v0025 , closing contactor for solenoid part no v0027 , flex connector part no v0028 , breaker terminal top part no v0029 , support insulator assy part no v0031 , secondry plug and socket part no v0032 , isolating spout part no v0033 , isolator spout for draw out part no v0034 , drive insulator for vcb part no v0041 , push to trip assy part no v0042 , draw to trip assly for drawout vcb part no v0046 , vacuum interrupter part no v0048 , vacuminterrupters 6.6kv part no v0048 , operating mechanism part no om009 , spring for operating mechanism part no om0010 , indicating lamp part no p0043 , push button switch part no p0044 , trip neutal close switch part no p0045 , ammeter or voltmeter selection switch part no p0046 , rectifier capacitor unit part no p0048 , earth leakage relay part no p0049 , master trip relay part no p0052 , potential transformer 3 phase 6.6 kv by 11 part no p0056a , auxiliary contactor 110 vac part no p0061 , 3point 3kv grade resin cast current transfor part no nvcbp0043 , current transformer 3point3 kv grade resin part no nvcbp0042
Tender For corrigendum : supply of three phase rectifier transformer, single phase control transformer and current transformer installed at chp ctpp chhabra
Tender For tender for supply of ac input mccb 100a 3pole 50ka acmake siemens l and t schneider suitable for exide make charge , ac supply trouble relay module 415vac static type 3c o aux make minilec suitable for exide charger , current transformer 75 5a 5va make ae kappa suitable for exide charger , ac contactor 63a 3pole 240v ac 2no+2nc make l and t siemens schneider suitable for exide charger , ac thermal overload relay57 70a bimetallic 1no+1nc l&t siemens schneider suitable to exide charger , secondary line surge suppressor 4micro farad 400v 10ohm 50watt exide suitable to exide charger , high speed fuse for semiconductor protection 100a make ge bussmann suitable to exide charger , thyristor 125a 800v make hirect rir semikron suitable to exide charger , snubber network 0.22microfarad 1000v 30ohm 10watts make exide suitable to exide charger , electronic scr control card static type make exide suitable to exide charger , electronic scr control module static type make exide suitable to exide charger , gflc card static type make exide suitable to exide charger , filter capacitor suitably matched for specified ripple make alcon/kendeil suitable to exide charger , rectifier protection diode 200a 800v make hirect rirsemikron suitable to exide charger , over current protection relay module static type make exide suitable to exide charger , relay for ocr 3c/o 12v dc make pla suitable to exide charger , dc output mccb 150a 2pole 10ka dc make l and t ge schneider suitable to exide charger , battery protection mccb 150a 3pole 10ka dc make l&t ge schneider suitable to exide charger , dc contactor 110a 220v dc coil make siemens ge suitable to exide charger , blocking diode 70a 800v make hirect rir semikron suitable to exide charger , blocking diode fail relay module static type make exide suitable to exide charger , trickle charger relay module static type make exide suitable to exide charger , manual float/boost mode select switch 10a single pole on off make kaycee suitable to exide charger , power supply idsr static type 24vdc & 12vdc make exide suitable to exide charger , integrated dc sensing module consists of dc uv/ovr ch fail bovr fbcor sfr battdischarge befr
Tender For corrigendum : supply of upgradation of central substation for es dept at grse main works d d - supply of upgradation of central substation for es dept at grse main works d d - ht copper bus bar , vcbs items , wti,buchholz, oti relays , 3 core x 300 sq. mm. aluminium conductor , pvc hume pipe , new two - 02 nos transformers , 11 kv - e 3 c x 300 sq mm frls xlpe , earth pit item 50 mm dia gi pipe , copper earth plate for neutral earthing , 50 x 6 mm cu flat , 50 x 6 mm gi flat , 2 v 100 ah ni-cd battery , 110 v dc rectifier , buchholz, wti, oti relays for 1k kva transformer , hv cable route marker , mapping of existing cable and pipe lines , civil work for preparation of renovation , position of 06 vcb racks , ht copper bus bar , installation and proving of wti, buchholz, , repair of vcb enclosures , 3 core x 300 sq. mm. aluminum conductor , trench cutting for cable laying , charge for laying of hume pipe , removal of 02 nos. transformer - 1000 kva and position of 02 nos. new transformer , ht cables , earth pit connection , installation of batteries , removal of existing ht panel. , service for removal of existing panel , service for fitment and proving of buchholz, wti, oti relays for 1000 kva transformer , cea approval for new vcb panel and ht cable installations ) /bid number : gem/2025/b/6602235 * /dated: 23-08-2025 & & / bid document 1 / 40