NIT 17 Item 9

Disconnection of HT supply from main incomer and proper discharging the OCB with all tool and tackles as required for HT works with all safety precautions

dismantling of old defective 3.6 KV CTs and PTs from the feeder panels of north pump house after bypassing the all required cable connections/ To avoid the major shutdown and connections of incoming & out going supplies as per require workable condition & as per instruction of engineer in charge without effecting the pumping from the plant.

Cleaning of complete CTs and PTs chamber, bushings, outgoing/indoor termination cable joint, insulators and connecting bus bar with the help of CRC and as required for the work with all tools and tackles as required for HT

Supply of HT 3.6 KV. resin cast , double core ,double ratio, Current transformer of ratio 100/5A class 1.0 for metering & class 5P10 for protection with 15VA burden or as per sample of existing PT for suitable to install in existing space without any shutdown in existing panel

Supply of PT with 15VA burden or as per sample of existing PT for suitable to install in existing space at incomers of HT panels without any shutdown in existing panel

Supply of various miscellaneous items such as Fuse links, Mounting structure ,tag link, Connecting tag wire, Offset Tags Double Slot, Moulded Fuse Holder ,PVC tape, HT Tape CT mounting links for fixing and making connection of the above said work

Supply of Motor protection circuit fuses 3.6 of KV High voltage fuses of rating 100 ampere having the breaking capacity of 25 Kilo ampere burden or as per sample of existing Fuse for suitable to install in existing space without any major shutdown and modification in existing panel 3 Nos. In one

Fixing of new CT in the feeder panels in North pump house in all respect by modification & making suitable copper bus bars, space for replacing old CTs/PTs and old control wiring, providing new control wiring with proper ferruling making all electrical connection with PVC tape according to Phase sequence,

Fixing of new PT in the incomer panels in North pump house in all respect by modification & making suitable copper bus bars, space for replacing old PTs and old control wiring, providing new control wiring with proper ferruling making all electrical connection with PVC tape according to Phase sequence,

Fixing of new Motor protection circuit fuses in the feeder panels in North pump house in all respect by modification & making suitable copper bus bars, space for replacing old fuses and old control wiring, providing new control wiring with proper ferruling making all electrical connection with PVC tape according to Phase sequence,

Reassembling of complete panel link and making connection for all CT PT fuses and tightening of all required links and thimbles and closing the panel in all respects.

Testing & Commissioning of the feeders with the help of Hi-pot machine and taking all results on No load & full load., Continuity and earthing, Polarity of current Transformer 'Breaker mechanism and alignment, Meggering of all equipment's for phase to phase, neutral to body, neutral to earth and phase to earth. All functional tests. Checking for all tightness of nuts and bolts, interlocking tests, Alignments of doors etc.

GOGIA BROTHERS