procurement of spares of ups of balance of plant (dm, etp, mrs, caaqms and chp) for imd-4, stps, sarni procurement of spares of ups of balance of plant (dm, etp, mrs, caaqms and chp) for imd-4, stps, sarni , spares of ups of balance of plant (dm, etp,mrs, caaqms & chp , card i4 hrd 129 incap scvs cntl. card , igbt 150a 600v , dd block 55a 1600v , tt block 57a 1600v , xmer iso pux031m3 hirel , xmer iso 24va 115/12v(2) pux242 hirel , igbt 75a 600v , dd block 26a 1600v , tt block 26a 1600v , dd block 46a 1600v , tt block 27a 1600v , tt block 58a 1600v , card i4 hrd 047 rev d 10 batt incap gate drive card , card i4 hrd 056 10 batt incap psf b , card i4 hrd 268 10 batt incap uc3844 smps card , card i4+d hrd 373 incap charger gate driver , card i4+ hrd 290 rev b incap 28 based chg. powerspy , card i4+t hrd 372 10 batt chr psfb incap , xmer iso 250va p:115v(2) s:180-200-230v hirel , xmer iso 3p-3p d/d 92va hirel drg#f-52011-231r , card i4+d hrd 372 rev a chrg.psfb 120vdc nmnl , card i4+t hrd 371 (v) chg control , card i4+t hrd 372 rev a chg psfb,30 batt incap , card i4 hrd 047 rev d incap gate driver card , card i4 hrd 056 rev b 20 batt incap psfb 230v , card i4 hrd 268 20 batt incap smps uc3844 , card i4+t hrd 372 rev a 20 batt chg psfb incap , set of cbb power cabling and control cables for ups s. no. 12064780