procurement of spares of 6 . 6kv , 630 amps control switches as per nit , procurement of spares of 6 . 6kv , 630 amps . control switches . , earth leakage rrelay , pt . no -mer5290 , 20410871274 , high speed tripping relay , pt . no . -mdn882720410871318 , 4p non dirctioal idmt relay , 30/c+1e/f , pt . no . -mer5510 , 20410871298 , under voltage relay , pt . no . -mer5610 , 20410871321 , hrc fuse link , pt . no -mes-4710 , 20419870193 , fuse base , pt . no . -mes-4711/mes-54710 , 20419870201 , fuse base , ( holder ) , 415v ac , 32a , pt . no . - mes-4712 , 20419870213 , hv fuse link 6 . 6kv , pt . no -med2441 , 204108712262 , single phase rectifier/power pack 110volt pt . no -mer5340 , 20410871306 , multi functional energy meter 110v ac . 3 phase , 4 wire , heavy duty , pt . no . -mer556020410871333 , test terminal block , pt . no . -mes4708 , 20410871353 , 5 pin plug & socket/ht piug & socket , pt . no . -mv3502 , 20419870099 , insulators complete set for fieldswitch , pt . no . - mv3320 , 20410871365 , hardware and wiring complete set consisting of lugs , sleeves , clamps channels , beeding , gromets , knobs & control wiring for fieldswitch , pt . no . mdt2474f , 20410871562 , tape wound cbct , pt . no . mer532020410871286 , incoming cable box with all accessories , pt . no . mdt2468 , 20411870083 , trip neutral close switch , pt . no . me4546 , 20410871341 , secondary plug & socket , pt . no . mv3301 , 20410871377 , complete vacuum circuit breaker truck draw out type , 6 . 6 kv-630/800 amp , pt no . medv6181 , 20410871389 , copper bus baar ( main horizontal ) for fieldswitch , pt . no . mdn8789 , copper bus baar ( incoming ) for fieldswitch , pt . no . mdn8790 , circuit spout - 800 amps , pt . no -mv3307 , 20419871424 , limit switch , pt . no . - me-4539 , 20410871562 , complete manually operated mechanism pt . no . -mev-4222 , 20410871432 , front chamber box with complete wiring , ammeter & voltmeter , selector switches & indication lamps for fieleldswitch pt . no . - medv8751 , 20410871444 , ampere meter 400/200/5a pt . no . - mes-4701/400d , 20419870134 , voltmeter 6600 volt , pt . no . - mes-4702/6600 , 20419870154 , ammeter selector switch , pt . no . -mes-4703 , 20419870166 , voltmeter selector switch , pt . no . - mes-4704 , 20419870178 , vaccum bottle - 800 amp - 20ka pt . no . - me-4527 , 20419870119 , auxiliary switch - 6 no . +6 nc pt . no . -me-4541 , 20410871582 , trip coil , pt . no . - me-4537 , 20410871547 , closing coil , pt . no . - me-4538 , 20410871559 , resin cast bottle housing , pt . no . -mv-3305 , 20419870312 , indicating lamp , pt . no . me-4543 , 20411870115 , spring charging motor , pt . no . - me-4540 , 20410871574 , heavy duty epoxy resin cast potential transformer ratio - 6 . 6kv/110v , 3phase class-1 , pt . no . -med2121 , 20410871392 , h . d . resin cast current transformer - 400/200/5/5a , burden 15va class-5p-10 pt . no . - md2232 , 20410870304