procurement of critical spares of abb procurement of critical spares of abb make, 1615kva, 6.6kv variable frequency drives (vfds), installed in prpl mp-3 at iocl nrpl panipat. , item supply : variable speed drive make : abb ltd supplementry requirements additional requirements complete unit spares , upgrade kit cvmi2b acs1000a p/n: 3bhb040806r0001 cvmi2b upgrades (including uf c911, b106: cvmi2b boards) part no. yn3a-cvmi2b for acs5000, 6.6kv, abb make vfd installed at iocl nrpl panipat , varistor unit sp rvar5512 abb vfd p/n-68260868 varistor upgrades kit (including variostors and, dual voltage sub-print boards, part no. 3bhb040100r1124) complete in all respect, for vfd acs 5000, installed at iocl nrpl panipat , isolated power supply ips articleno:3bhb017688r0001 complete set of isolated power supply, ips units, part no. 3bhb017688r0001 for vfd acs 5000, installed at iocl nrpl panipat. , xv c769 ae101_oei-board, coated articleno:3bhe006373r0101 xv c769 ae101 oei-board, coated part no. 3bhe006373r0101 for vfd acs 5000, installed at iocl nrpl panipat