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For Providing RVT Silicon Insulating Coating on 220 kV/132 kV Switchyard Equipments Insulators
S. No. Priority Total Insulators Required Time Total Teams Required Shutdown Remarks
1 27 3 27 Hrs 132 kV Tie line
2 54 3 Hrs/ insulator 3 54 Hrs
3 132 kV TG-7 Bay at 220 kV S/Y 15 3 Hrs/ insulator 3 15 Hrs TG-7
4 132 kV bay of 100 MVA TR-1 13 3 Hrs/ insulator 3 13 Hrs 100 MVA TR-1
Required Materials (KG)
Total Time (Appox.)
132 kV Tie Line Bay At 220 kV & 132 kV S/Y
65 KG for (C.B. - 2 Nos, CT's - 2 Sets, L.A.- 2 Set, PT's- 1 Set, Cable connector - 6 Nos)
3 Hrs/ insulator/
Team
Above estimation of material is excluding of isolators, if we required coating on 2 set of isolators ( for both 220 kV & 132 kV S/Y, material required - 24 KG) then we have to take shutdown of 132 kV GT-7 & Tie line bay at 220 kV S/Y & 132 kV bay of 20/25 MVA TR-1,2,3 & 4 with 132 kV Ras- Bwr Line at 132 kV S/Y
132 kV TG-8 Bay with half 132 kV Bus at 220 kV S/Y
93 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, PT's- 2 Set (TG & Bus), Cable connector - 3 Nos, Isolators - 4 Set)
TG-8, 100 MVA TR-1 & 132 kV Bus for U-9 &
10
Above estimation of material is excluding of 100 MVA Tr-1 132 kV bay, if we provid coating on 100 MVA TR-1 bay equipments we required additional 36 KG material for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No) with 13 Hrs & 3 teams
38 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, PT's- 1 Set, Cable connector - 3 Nos)
Above estimation of material is excluding of isolators, if we required coating on isolator (1 Set, material required - 12 KG) then we have to take shutdown of 100 MVA TR-2 & 132 kV Tie line at 220 kV S/Y
36 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No)
If we taken this job with second priority job then no need to do this job
5 132 kV bay of 100 MVA TR-2 13 3 Hrs/ insulator 3 13 Hrs 100 MVA TR-2
36 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No)
Above estimation of material is excluding of isolators, if we required coating on 3 set of isolators ( For Transformer,Bus PT & Bus Coupler, material required - 36 KG) then we have to take shutdown of TG-7 & Tie line at 220 kV S/Y
6 132 kV Ras-Bwr line Bay 30 3 Hrs/ insulator 3 30 Hrs
7 132 kV bay of 20/35 MVA Tr-1 13 3 Hrs/ insulator 3 13 Hrs
8 132 kV bay of 20/35 MVA Tr-2 13 3 Hrs/ insulator 3 13 Hrs
9 132 kV bay of 20/35 MVA Tr-3 13 3 Hrs/ insulator 3 13 Hrs
10 132 kV bay of 20/35 MVA Tr-4 13 3 Hrs/ insulator 3 13 Hrs
57 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, PT's - 1 Set, Isolator - 2 Set)
132 kV Ras-Bwr Tie line
Above estimation of material is excluding of line isolator from 132 kV bay side, if we required coating on set of isolator (material required - 12 KG) then we have to take shutdown of 132 kV bay with 20/25 MVA TR-1,2,3,4 & Tie line at 132 kV S/Y
36 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No)
20/25 MVA TR-1 & TG-6
Above estimation of material is excluding of Transformer isolator , if we required coating on isolator (material required - 12 KG) then we have to take shutdown of 132 kV bay with 20/25 MVA TR-2,3,4 , Tie line & 132 kV Ras-Bwr line at 132 kV S/Y
36 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No)
20/25 MVA TR-2 & TG-3
Above estimation of material is excluding of Transformer isolator , if we required coating on isolator (material required - 12 KG) then we have to take shutdown of 132 kV bay with 20/25 MVA TR-1,3,4 , Tie line & 132 kV Ras-Bwr line at 132 kV S/Y
36 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No)
20/25 MVA TR-3 & TG-4
Above estimation of material is excluding of Transformer isolator , if we required coating on isolator (material required - 12 KG) then we have to take shutdown of 132 kV bay with 20/25 MVA TR-1,2,4 , Tie line & 132 kV Ras-Bwr line at 132 kV S/Y
36 KG for (C.B. - 1 Nos, CT's - 1 Sets, L.A.- 1 Set, Bushing- 3 Nos, Neutral Bushing - 1 No)
20/25 MVA TR-4 & TG-5
Above estimation of material is excluding of Transformer isolator , if we required coating on isolator (material required - 12 KG) then we have to take shutdown of 132 kV bay with 20/25 MVA TR-1,2,3, Tie line & 132 kV Ras-Bwr line at 132 kV S/Y
