Substation & Switchyard Works Tenders

Earthmate :-M.S Round 32mm dia and all requried material for Substation earthmate provided by the contractor at his own cost. (3500Kg approx) Earthing of Outdoor Equipments in Switchyard, as per site requirement/as per PVVNL guideline details as given below:- Digging of Trench of size-0.50x0.75x30M.,for laying of Earthmat throughout in required full portion of switchyard and refilling & ramming of the same earth into the trenches after completion of Earthmat work, Laying of 32mm.dia M.S.Bar in Trench, properly in alignment along the length and width in switchyard, Cutting of 32mm.dia M.S.Bar-3M.long and making one end in conical shape,by forging process and driving it into the earth, in trench at fixed distance as per drawing and properly welding with M.S.Bar Earthmat, Proper continuous electric welding of overlap joints of M.S.Bar upto a length of 150mm. On both sides,along the length of M.S.Bar and an extra piece of 12mm M.S.Round-150mm.long, providing on both sides of Overlap Joints and continuous electric welding on both side, along the length of M.S.Bar. All joints shall be painted with black bituminous paint, Proper electric welding at X-joints of M.S.Bar and welding by providing 25x6mm.”U” type Clamp of M.S.Flat, and proper continuous electric welding with M.S.Electrode and M.S.Bar at each X-joints. All joints shall be painted with black bituminous paint and as per site requirement.

OD9741/2026-2027:Charges towards service and maintenance including regular service of ACBs(Seimens and L&T make) - Overhauling service of ACB including Cleaning of breaker with CRC, Removal of old grease and re-greasing the same with recommended grease, Checking the condition of arcing contact and gap between fixed and moving arcing contacts, Checking the reset mechanism and tripping of breaker through push button, Checking and adjust freeness of release trip rod, Checking presence and proper tightening of hardware, Checking presence of all circlips, Checking condition and alignment of Jaw contact with cradle terminals, Checking condition of ACB wiring and replace if required, Checking and adjusting gap between hilum sheet and side plate, Checking proper closing of all poles together, Checking working of anti pumping device in case of EDO ACB, Checking arc chutes Conditions, Checking U/V releases. Checking ACB tripping through shunt release, Checking motor operation in case of EDO ACB, Checking closing coil operation in case of EDO ACB, Checking continuity and proper changeover of auxiliary contact block, Setting of Protection Release as per the load/Customer Request, Checking healthiness of CTs, Testing of Protection Release, Dismantling and Reassembling of Main Mechanism Parts, If Required

Shifting of 05 MVA T/F main body and other accessories from the Substation switchyard to loading point out side the switchyard of any 33/11KV Substation / Store Centre under PVVNL & Loading of main tank of Transformer alongwith conservator, radiators, Transformer’s Oil Drums, and other accessories on the Trailer/Truck at any 33/11KV S/S / Store Centre under PVVNL

Earthmate :-M.S Round 32mm dia and all requried material for Substation earthmate provided by the contractor his own cost. (3500Kg approx) Earthing of Outdoor Equipments in Switchyard, as per site requirement/as per PVVNL guideline details as given below:- Digging of Trench of size-0.50x0.75x30M.,for laying of Earthmat throughout in required full portion of switchyard and refilling & ramming of the same earth into the trenches after completion of Earthmat work, Laying of 32mm.dia M.S.Bar in Trench, properly in alignment along the length and width in switchyard, Cutting of 32mm.dia M.S.Bar-3M.long and making one end in conical shape,by forging process and driving it into the earth, in trench at fixed distance as per drawing and properly welding with M.S.Bar Earthmat, Proper continuous electric welding of overlap joints of M.S.Bar upto a length of 150mm. On both sides,along the length of M.S.Bar and an extra piece of 12mm M.S.Round-150mm.long, providing on both sides of Overlap Joints and continuous electric welding on both side, along the length of M.S.Bar. All joints shall be painted with black bituminous paint, Proper electric welding at X-joints of M.S.Bar and welding by providing 25x6mm.”U” type Clamp of M.S.Flat, and proper continuous electric welding with M.S.Electrode and M.S.Bar at each X-joints. All joints shall be painted with black bituminous paint and as per site requirement.