Tender For online oil filtration and replacement of unserviceable silica gel with breather of different types of transformer installed at different places under kathara colliery (transformer report enclosed).
Tender For maintenance free dehydrating breather for 125 mvar shunt reactor as per item 1 of annexure , maintenance free dehydrating breather for 315 generator transformer as per item 2 of annexure
Tender For supply of overhauling & maintenance of cp transformer rectifier units , ac amp. meter, for detailed description refer price breakup sheet , ac volt meter, for detailed description refer price breakup sheet , dc volt meter, for detailed description refer price breakup sheet, dc amp. meter, for detailed description refer price breakup sheet, voltmeter ( psp meter ), for detailed description refer price breakup sheet, main rectifier diodes, iav 150 amp, piv - 1200 v , type- 150 lf 120 , "lightning arrestor( la) both input and output side, rms voltage rating - 500v ,rms current rating - 1.5 ka, type- lt 0.5 oe eqv", thyrister module (scrm) consisting two antiparrallel thyrister, for detailed description refer price breakup sheet, auxiliary transformer for control circuit power supply, for detailed description refer price breakup sheet, filter capacitor bank in dc output , 2500 micro farad , 150v x 6 electrolytic capacitors, relay for providing remote contacts for mcb tripped & ac supply fail faults , coil - 240 v ac coil resistance 10 k contacts 2no+2nc , 8 pin plug in type, relay for providing remote contacts for oil tank or instrument , chamber high temp. fault. coil - 240 v ac coil resistance 10 k contacts 3no+3nc , 11 pin plug in type, thermostate with adjustable temp. setting with nc contacts ( 30 to 110 setting ), indicator lamp , housed in 22.5 mm dia, 240 v, led type red colour, auto or manual mode selector rotary type, 4 pole , 2 way ,63 amps, 240 v, ac type srpm 5417b or pa 17463b, coarse manual output control switch , rotary type, 1 pole , 6 way ,63 amps, 240 v, ac type pa7163f, fine manual output control switch rotary type, 1 pole , 4 way ,63 amps, 240 v, ac type srpm 615dor pa 5163 d, coarse current limit settor switch cam type, 2 pole ,6 way ,6 amps, 240 v, type s6-61072, fine current limit settor switch, cam type, 2 pole ,6 way ,6 amps, 240 v, type s6-61072, reference electrode selector switch, cam type 2 pole ,4 way ,6 amps, 230 v, type s6-61070, local or remote control mode selector switch,toggle type 2 pole , 2 way ,6 amps, 240 v, , on or off toggle switches in various lamp and meter circuits. 1/2 pole , 2 way ,6 amps, 240 v, , current transformer for ammeter a1 ratio - 50/1, burden - 5 va ,class - 1, contactor 32 amp.bch make 3p +(1p no) with add on 240 v ac coil , breather ( 19.45 mm dia), output voltage setter potentiometer in local auto mode 2.5 k ohm 3 watt ww, output current setter potentiometer in local auto mode 1 k ohm 3 watt ww, oil temp. indicator range ( 0 to 150 o c ), 4-20ma converter module for dc output voltage signal input - 0-75v dc , output - 4 to 20 m a , max load - 600 ohm , accuracy - +-0.5 %, aux supply - 240 v, ac type-520 t, base or channel mounting type , 4-20ma converter module for dc output current signal input - 0-75a (75 mv) dc , output - 4 to 20 m a , max load - 600 ohm , accuracy - +-0.5 %, aux supply - 240 v, ac type-520 t, base or channel mounting type , "auto transformer with coarse and fine tappings for manual control dc of output, input -265 v , coarse taps- 7 nos. fine taps- 04 nos. capacity - 8000 va, insulation - class -a (oil cooled ) ", "main transformer with shield double wound primary- 240 +/- 10 %, secondary- (0-110 v), capacity - 10,000 va, insulation - class -a (oil cooled )", filter choke in dc output , 7.5 mh at 100 amp., control box for card fixing ceco-108 & ceco 105 d1 (and extra card connector having 40 slots), current or voltage control firing card control card , type- ceco- 105d1 , "remote control interface card control card ,type- ceco -108 ", "current limit setter card control card , type- ceco -35a- 2.5 v , 75a/75mv -33.33", "voltage current sensor card control card , type -ceco -19c ", pulse driver card ceco - 118 c, surge suppressor r-c network across scrs 75 ohm, for detailed description refer price breakup sheet, "fuse fail indicator module for diodes and output fuses six channel type with led indicators and 1 common no+nc contacts ,sensing
Tender For replacement of unserviceable silica gel with breather for protect from moisture of different transformer installed at different locations of gvp phase-ii ocp
Tender For corrigendum : supply of electrical safety material e e -mattes for lt panel , mattes for 11 kv ht panel , mattes for 33 kv ht panel , electrical safety hooks with stick , electrical shock instruction board , danger notice board , foam sealant , electrical safety gloves, 33 kv class 4 33kv rated is , first aid kit , electrical discharge rod, 33 kv , transformer breather, 2500 kva , transformer breather, 600 kva , d. o. barrels , d. o. fuse, 25a 33kv element , d. o. operating rod
Tender For supply of set of silica gel breather for abb trans [set of silica gel breather for abb transformer (1) air drier for bushing box type em 2 mb-1.0kgorange ss cover (2) air drier for oil expansion tank type 1 em 003 ma 002-2kg orange ss cover make:any.]
Tender For corrigendum : complete changing of cork sheet and joint sealing, replacement of stud insulator of ht and lt side and safety devices such as winding and oil temp meter, buccholz relay and breather assy. of power transformer make m n b switch gears pvt. ltd., 1500kv