Tender For Overhauling And Testing Of Power And Distribution Transformers Installed At Heavy Water Board Facilities- Vadodara.; 1 Overhauling and testing of 6MVA power transformers 2 Overhauling of 66KV/3.49KV, 6 MVA, BHARAT BIJLEE make 3-phase, 3-windingtransformer including terminal disconnections, dismantling of LV & HV bushings, core lifting (untanking mass: 7MT), vacuum drying etc. as per technical specifications given in tender.Note: Scope also includes arranging crane required for maintenance, supply of paint and other tools & tackles and consumables required for carrying overhauling job. 3 Repairing of cooling fins of radiator bank for arresting oil leakages as per technical specifications given in tender. 4 Supply of OTI & WTI along with marshalling box made of CRCA sheet of 2mm thickness having dimensions 580X195X640mm For above mentioned 6MVA transformer as per technical specifications given in tender. 5 Supply of MOG with all accessories suitable for above mentioned 6MVA transformers as per technical specifications given in tender. 6 Supply of buchholz relay with all accessories suitable for above mentioned 6MVA transformers as per technical specifications given in tender. 7 Supply of radiator valves made of cast iron suitable for above mentioned 6MVA transformers. 8 Supply of 3.3KV neutral bushing made of porcelain suitable for above mentioned 6MVA transformers. 9 Supply and replacement of oil drain valve for above mentioned 6MVA transformers as per technical specifications given in tender. 10 Carrying out tests like IR value & PI test, ratio test, SFRA, core balance, winding resistance measurement, magnetizing current test, tan delta, capacitance measurement of windings etc. before and after overhauling as per list of tests given in tender.Set refers to tests before and after maintenance for each transformer. 11 Supply of 5.0Kg silicagel breather suitable for 6MVA transformer as per technical specifications given in tender. 12 Overhauling and testing of 2MVA transformers 13 Overhauling of 3.3KV/433V, 2 MVA, BHARAT BIJLEE make 3-phase, 3-windingtransformer including terminal disconnections, dismantling of LV & HV bushings, core lifting (untanking mass: 3.0 MT), vacuum drying etc. as per technical specifications given in tender.Note: Scope also includes arranging crane required for maintenance, supply of paint and other tools & tackles and consumables required for carrying overhauling job. 14 Repairing of cooling fins of radiator bank for arresting oil leakages as per technical specifications given in tender. 15 Supply of OTI & WTI along with marshalling box made of CRCA sheet of 2mm thickness having dimensions 580X195X640mm for above mentioned 2MVA transformer as per technical specifications given in tender. 16 Supply of MOG with all accessories suitable for above mentioned 2MVA transformers as per technical specifications given in tender. 17 Supply of buchholz relay with all accessories suitable for above mentioned 2MVA transformers as per technical specifications given in tender. 18 Supply of radiator valves made of cast iron suitable for above mentioned 2MVA transformers. 19 Carrying out tests like IR value & PI test, ratio test, SFRA, core balance, winding resistance measurement, magnetizing current test, tan delta, capacitance measurement of windings etc. before and after overhauling as per list of tests given in tender.Set refers to tests before and after maintenance for each transformer. 20 Supply of 2.0Kg silicagel breather suitable for 2MVA transformer as per technical specifications given in tender. 21 Dismantling, cleaning, maintenance and painting of secondary side duct of 2MVA transformer as per technical specifications given in tender. 22 Supply and replacement of bus bar supporting insulators of bus duct as per technical specifications given in tender. 23 Overhauling and testing of 1250KVA transformer 24 Overhauling of 3.3KV/433V, 1250KVA, Voltamp make 3-phase, 3-windingtransformer including terminal disconnections, dismantling of LV & HV bushings, core lifting (untanking mass: 2.0 MT), vacuum drying etc. as per technical specifications given in tender.Note: Scope also includes arranging crane required for maintenance, supply of paint and other tools & tackles and consumables required for carrying overhauling job. 25 Repairing of cooling fins of radiator bank for arresting oil leakages as per technical specifications given in tender. 26 Supply of OTI & WTI for above mentioned 1250KVA transformer as per technical specifications given in tender. 27 Supply of MOG with all accessories suitable for above mentioned 1250KVA transformers as per technical specifications given in tender. 28 Supply of buchholz relay with all accessories suitable for above mentioned 1250KVA transformers as per technical specifications given in tender. 29 Supply of radiator valves made of cast iron suitable for above mentioned 1250KVA transformers. 30 Supply of 3.3KV bushing along with stud suitable for above mentioned 1250KVA transformers as per technical specifications given in tender. 31 Supply of 1.1KV bushing along with stud suitable for above mentioned 1250KVA transformers as per technical specifications given in tender. 32 Carrying out tests like IR value & PI test, ratio test, SFRA, core balance, winding resistance measurement, magnetizing current test, tan delta, capacitance measurement of windings etc. before and after overhauling as per list of tests given in tender.Set refers to tests before and after maintenance for each transformer. 33 Supply of 2.0 Kg silicagel breather suitable for 1250KVA transformer as per technical specifications given in tender. 34 Dismantling, cleaning, maintenance, assembling and painting of secondary side duct of 1250KVA transformer as per technical specifications given in tender. 35 Supply and replacement of bus bar supporting insulators of bus duct as per technical specifications given in tender. 36 Overhauling and testing of 500KVA transformer 37 Overhauling of 3.3KV/433V, 500KVA, Powerkraft make 3-phase, 3-windingtransformer including terminal disconnections, dismantling of LV & HV bushings, core lifting (untanking mass:1.1 MT), vacuum drying etc. as per technical specifications given in tender.Note: Scope also includes arranging crane required for maintenance, supply of paint and other tools & tackles and consumables required for carrying overhauling job. 38 Supply & replacement of radiator bank suitable for above mentioned 500KVA transformer as per technical specifications given in tender. 39 Supply and replacement of OTI along with marshalling box 580X195X640mm for above mentioned 500KVA transformer as per technical specifications given in tender. 40 Supply of buchholz relay with all accessories suitable for above mentioned 500KVA transformers as per technical specifications given in tender. 41 Supply of 3.3KV bushing along with stud suitable for above mentioned 500KVA transformers as per technical specifications given in tender. 42 Supply and replacement of 1.1KV bushing along with stud suitable for above mentioned 500KVA transformers as per technical specifications given in tender. 43 Carrying out tests like IR value & PI test, ratio test, SFRA, core balance, winding resistance measurement, magnetizing current test, tan delta, capacitance measurement of windings etc. before and after overhauling as per list of tests given in tender.Set refers to tests before and after maintenance for each transformer. 44 Supply of 1.5Kg silicagel breather suitable for 500KVA transformer as per technical specifications given in tender. 45 Overhauling of 25 to 50 KVA transformers 46 Overhauling of 433/433V, 25 to 50KVA oil immersed isolation transformers including terminal disconnections, dismantling of LV & HV bushings, core lifting, drying out by hot oil circulation etc. as per technical specifications given in tender.Note: Scope also includes supply of paint and other tools & tackles and consumables required for carrying overhauling job. 47 Supply of bushings along with terminal studs suitable for above mentioned transformers of rating 25 to 50KVA as per technical specifications given in tender. 48 Supply of 0.5Kg silicagel breather suitable for 25 to 50 KVA transformers as per technical specifications given in tender. 49 Supply of buchholz relay with all accessories suitable for above mentioned 50KVA transformers as per technical specifications given in tender. 50 Supply and replacement of oil temperature indicator for 50KVA transformer as per technical specifications given in tender. 51 Filtration of new/old transformer oil as per technical specifications given in tender. 52 Testing of transformer oil after filtration and submission of test report from NABL certified laboratory as per technical specifications given in tender.
