Tender For 220Kv Gis And Pothead Yard Of 186 Mw Tato-I Hydro Electric Project, Arunachal Pradesh.
Tender Overview
Project Description
Tender for 220Kv Gis And Pothead Yard Of 186 Mw Tato-I Hydro Electric Project, Arunachal Pradesh.
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 16-Apr-2026 | Corrigendum No.1 dtd 16.04.2026 | Date | 04-May-2026 |
| 2 | 24-Apr-2026 | Record Notes of Discussion dtd 16.04.2026 | Other | 18-May-2026 |
| 3 | 16-Apr-2026 | Corrigendum No.1 dtd 16.04.2026 | Date | 04-May-2026 |
| 4 | 01-May-2026 | Corrigendum No.2 dtd 30.04.2026 | Date | 18-May-2026 |
| 5 | 01-May-2026 | Corrigendum No.2 dtd 30.04.2026 | Date | 18-May-2026 |
| 6 | 24-Apr-2026 | Record Notes of Discussion dtd 16.04.2026 | Other | 01-Jun-2026 |
| 7 | 16-Apr-2026 | Corrigendum No.1 dtd 16.04.2026 | Date | 04-May-2026 |
| 8 | 18-May-2026 | Corrigendum No.3 dtd 18.05.2026 | Date | 01-Jun-2026 |
| 9 | 01-Jun-2026 | Corrigendum No.5 dtd 01.06.2026 | Date | 15-Jun-2026 |
| 10 | 26-May-2026 | Corrigendum No.4 dtd 26.05.2026 | Other | 15-Jun-2026 |
| 11 | 18-May-2026 | Corrigendum No.3 dtd 18.05.2026 | Date | 01-Jun-2026 |
| 12 | 01-May-2026 | Corrigendum No.2 dtd 30.04.2026 | Date | 18-May-2026 |
| 13 | 24-Apr-2026 | Record Notes of Discussion dtd 16.04.2026 | Other | 15-Jun-2026 |
| 14 | 16-Apr-2026 | Corrigendum No.1 dtd 16.04.2026 | Date | 04-May-2026 |
| 15 | 15-Jun-2026 | Corrigendum No.6 Dtd 15.06.2026 | Date | 29-Jun-2026 |
| 16 | 15-Jun-2026 | Pre Bid Technical Clarification No.1 dtd 15.06.2026 | Other | 29-Jun-2026 |
| 17 | 04-Jun-2026 | Pre Bid Commercial Clarification No1 dtd 04.06.2026 | Other | 29-Jun-2026 |
| 18 | 01-Jun-2026 | Corrigendum No.5 dtd 01.06.2026 | Date | 15-Jun-2026 |
| 19 | 26-May-2026 | Corrigendum No.4 dtd 26.05.2026 | Other | 29-Jun-2026 |
| 20 | 16-Apr-2026 | Corrigendum No.1 dtd 16.04.2026 | Date | 04-May-2026 |
| 21 | 18-May-2026 | Corrigendum No.3 dtd 18.05.2026 | Date | 01-Jun-2026 |
| 22 | 01-May-2026 | Corrigendum No.2 dtd 30.04.2026 | Date | 18-May-2026 |
| 23 | 24-Apr-2026 | Record Notes of Discussion dtd 16.04.2026 | Other | 29-Jun-2026 |
| 24 | 30-Jun-2026 | Corrigendum No.7 dtd 30.06.2026 | Date | 09-Jul-2026 |
| 25 | 15-Jun-2026 | Pre Bid Technical Clarification No.1 dtd 15.06.2026 | Other | 09-Jul-2026 |
| 26 | 24-Apr-2026 | Record Notes of Discussion dtd 16.04.2026 | Other | 09-Jul-2026 |
| 27 | 04-Jun-2026 | Pre Bid Commercial Clarification No1 dtd 04.06.2026 | Other | 09-Jul-2026 |
| 28 | 26-May-2026 | Corrigendum No.4 dtd 26.05.2026 | Other | 09-Jul-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | Total from Price Schedule II (SUPPLY) |
| 2 | Total from Price Schedule III (F&I) |
| 3 | Total from Price Schedule IV (ETC) |
| 4 | 220kV GAS INSULATED SWITCHGEAR (GIS)245 kV, 3150A, 50kA, 3 Ph, 50Hz, Gas Insulated metal enclosed Switchgear (GIS) having double bus and with the following arrangement of bays and other details as per technical specification and enclosed SLD & Layout drawings and as below: |
| 5 | 245kV, 3 Ph units, SF6 gas insulated, metal enclosed 3150A bus bars running along the length of the switchgear to interconnect the envisaged circuit breaker bay modules. Each bus bar set shall be complete with voltage transformers, safety grounding switch, bay marshalling box, support structure, SF6 gas monitoring system LCC etc. and suitable for future extension (if any) at both ends. |
| 6 | 245kV, 3150A Generator Transformer bay module complete with bus isolators & Earth switch, CB, 6 core CTs, Earth switch, Line side isolator, high speed earth switch, surge arrestor with surge counter, marshalling box, SF6 gas monitoring system for complete bay, LCC etc as required. |
| 7 | 245kV, 3150A Station Service Transformer (SST) bay module complete with bus isolators & Earth switch, CB, 6 core CTs, Earth switch, Line side isolator, high speed earth switch, surge arrestor with surge counter, marshalling box, SF6 gas monitoring system for complete bay, LCC etc as required. |
| 8 | A set of GIB connections between GIS module and associated three numbers single-phase step-up transformers for each Generator Transformer bay, SST, each GIB is rated for 245kV 3150 A as per Layout Drawings attached with the tender document. Each set of Gas Insulated Busbars (GIB) shall be complete with required gas monitoring system, safety grounding, flexible bellows/expansion joints, bends/elbows, non-magnetic support structures etc. as required to complete the installation and for its safe working. |
| 9 | 245kV, 3150A Bus coupler bay module complete with Bus isolators and earthing switches, CB, 6 core CTs, SF6 gas monitoring system, marshalling box, LCC etc. in line with Technical specification. |
| 10 | 245kV, 3150A Line Bay modules complete with Bus Isolators & Earthing switch, CB, 6 core CTs, Earthing switch, line side isolator with high speed E/S, marshalling box, SF6 gas monitoring system, LCC etc. for complete bay. |
| 11 | 245kV, a set of 3 single phase (Isolated) Gas Insulated metal enclosed 3150A Busbars (GIB) each enclosed in bus enclosures and connecting the line bay module to respective SF6 to AIS bushing as per layout drawing attached with the tender document.SF6 to AIS Bushing also forms part of this item. Each set of Gas Insulated Bus bars (GIB) shall be complete with required gas monitoring system, safety grounding, bends/elbows, non-magnetic support structures, flexible bellows/ expansion joints (if required). |
| 12 | POTHEAD YARD EQUIPMENT |
| 13 | 245 kV Pothead yard consisting of the following equipment |
| 14 | 212kV,216kV MCOV, Class 4, 20kA rated discharge, single phase station class, ZnO surge arrestor complete with surge counter/ leakage meter, terminal connector, mounting structure etc. |
| 15 | 245 kV, 3150A, 3 phase gang operated, Disconnector along with live side Earth switch, support insulators, terminal connectors, support structure & operating mechanism as per technical specifications |
| 16 | 245kV, Bus Post Insulator with Al pipe holding clamp, mounting structure etc. |
| 17 | 245kV, 1200A, 0.625mH, single phase Line Traps complete with pedestal, support insulators and mounting structure etc. |
| 18 | 245kV, 4400pF, 3 core single phase line capacitive voltage transformers, ratio 220/√3kV- 110/√3V- 110/√3V- 110/√3Vcomplete with mounting structures, marshalling box, terminal box etc. as per tender specification. Insulator shall be rated for 1050kVp BIL as per IEC. |
| 19 | GI Structure for the termination gantries, lightening protection, earthing, busbar/al tube etc. as required |
| 20 | PLCC SYSTEM |
| 21 | PLCC equipment for both ends inclusive of the following |
| 22 | PLCC Boards consisting of line coupling filters, Redundant PLCC system, Tele protection device, Digital Multiplexer, Data Modem, 75-ohm HF cable, space heaters, exchange, telephones etc. |
| 23 | OTHER |
| 24 | Special Erection/Maintenance Tools and Tackles |
| 25 | Mandatory Spare Parts – Switchyard Equipment (as per Technical Specifications ); |
| 26 | Grounding conductor/Cable/wire along with associated accessories for grounding of all non-current carrying items of equipment, transformer neutrals, Gen neutrals etc. |
| 27 | 220kV GAS INSULATED SWITCHGEAR (GIS)245 kV, 3150A, 50kA, 3 Ph, 50Hz, Gas Insulated metal enclosed Switchgear (GIS) having double bus and with the following arrangement of bays and other details as per technical specification and enclosed SLD & Layout drawings and as below: |
| 28 | 245kV, 3 Ph units, SF6 gas insulated, metal enclosed 3150A bus bars running along the length of the switchgear to interconnect the envisaged circuit breaker bay modules. Each bus bar set shall be complete with voltage transformers, safety grounding switch, bay marshalling box, support structure, SF6 gas monitoring system LCC etc. and suitable for future extension (if any) at both ends. |
| 29 | 245kV, 3150A Generator Transformer bay module complete with bus isolators & Earth switch, CB, 6 core CTs, Earth switch, Line side isolator, high speed earth switch, surge arrestor with surge counter, marshalling box, SF6 gas monitoring system for complete bay, LCC etc as required. |
| 30 | 245kV, 3150A Station Service Transformer (SST) bay module complete with bus isolators & Earth switch, CB, 6 core CTs, Earth switch, Line side isolator, high speed earth switch, surge arrestor with surge counter, marshalling box, SF6 gas monitoring system for complete bay, LCC etc as required. |
| 31 | A set of GIB connections between GIS module and associated three numbers single-phase step-up transformers for each Generator Transformer bay, SST, each GIB is rated for 245kV 3150 A as per Layout Drawings attached with the tender document. Each set of Gas Insulated Busbars (GIB) shall be complete with required gas monitoring system, safety grounding, flexible bellows/expansion joints, bends/elbows, non-magnetic support structures etc. as required to complete the installation and for its safe working. |
| 32 | 245kV, 3150A Bus coupler bay module complete with Bus isolators and earthing switches, CB, 6 core CTs, SF6 gas monitoring system, marshalling box, LCC etc. in line with Technical specification. |
| 33 | 245kV, 3150A Line Bay modules complete with Bus Isolators & Earthing switch, CB, 6 core CTs, Earthing switch, line side isolator with high speed E/S, marshalling box, SF6 gas monitoring system, LCC etc. for complete bay. |
| 34 | 245kV, a set of 3 single phase (Isolated) Gas Insulated metal enclosed 3150A Busbars (GIB) each enclosed in bus enclosures and connecting the line bay module to respective SF6 to AIS bushing as per layout drawing attached with the tender document.SF6 to AIS Bushing also forms part of this item. Each set of Gas Insulated Bus bars (GIB) shall be complete with required gas monitoring system, safety grounding, bends/elbows, non-magnetic support structures, flexible bellows/ expansion joints (if required). |
| 35 | POTHEAD YARD EQUIPMENT |
| 36 | 245 kV Pothead yard consisting of the following equipment |
| 37 | 212kV,216kV MCOV, Class 4, 20kA rated discharge, single phase station class, ZnO surge arrestor complete with surge counter/ leakage meter, terminal connector, mounting structure etc. |
| 38 | 245 kV, 3150A, 3 phase gang operated, Disconnector along with live side Earth switch, support insulators, terminal connectors, support structure & operating mechanism as per technical specifications |
| 39 | 245kV, Bus Post Insulator with Al pipe holding clamp, mounting structure etc. |
| 40 | 245kV, 1200A, 0.625mH, single phase Line Traps complete with pedestal, support insulators and mounting structure etc. |
| 41 | 245kV, 4400pF, 3 core single phase line capacitive voltage transformers, ratio 220/√3kV- 110/√3V- 110/√3V- 110/√3Vcomplete with mounting structures, marshalling box, terminal box etc. as per tender specification. Insulator shall be rated for 1050kVp BIL as per IEC. |
| 42 | GI Structure for the termination gantries, lightening protection, earthing, busbar/al tube etc. as required |
| 43 | PLCC SYSTEM |
| 44 | PLCC equipment for both ends inclusive of the following |
| 45 | PLCC Boards consisting of line coupling filters, Redundant PLCC system, Tele protection device, Digital Multiplexer, Data Modem, 75-ohm HF cable, space heaters, exchange, telephones etc. |
| 46 | OTHER |
| 47 | Special Erection/Maintenance Tools and Tackles |
| 48 | Mandatory Spare Parts – Switchyard Equipment (as per Technical Specifications ); |
| 49 | Grounding conductor/Cable/wire along with associated accessories for grounding of all non-current carrying items of equipment, transformer neutrals, Gen neutrals etc. |
| 50 | 220kV GAS INSULATED SWITCHGEAR (GIS)245 kV, 3150A, 50kA, 3 Ph, 50Hz, Gas Insulated metal enclosed Switchgear (GIS) having double bus and with the following arrangement of bays and other details as per technical specification and enclosed SLD & Layout drawings and as below: |
| 51 | 245kV, 3 Ph units, SF6 gas insulated, metal enclosed 3150A bus bars running along the length of the switchgear to interconnect the envisaged circuit breaker bay modules. Each bus bar set shall be complete with voltage transformers, safety grounding switch, bay marshalling box, support structure, SF6 gas monitoring system LCC etc. and suitable for future extension (if any) at both ends. |
| 52 | 245kV, 3150A Generator Transformer bay module complete with bus isolators & Earth switch, CB, 6 core CTs, Earth switch, Line side isolator, high speed earth switch, surge arrestor with surge counter, marshalling box, SF6 gas monitoring system for complete bay, LCC etc as required. |
| 53 | 245kV, 3150A Station Service Transformer (SST) bay module complete with bus isolators & Earth switch, CB, 6 core CTs, Earth switch, Line side isolator, high speed earth switch, surge arrestor with surge counter, marshalling box, SF6 gas monitoring system for complete bay, LCC etc as required. |
| 54 | A set of GIB connections between GIS module and associated three numbers single-phase step-up transformers for each Generator Transformer bay, SST, each GIB is rated for 245kV 3150 A as per Layout Drawings attached with the tender document. Each set of Gas Insulated Busbars (GIB) shall be complete with required gas monitoring system, safety grounding, flexible bellows/expansion joints, bends/elbows, non-magnetic support structures etc. as required to complete the installation and for its safe working. |
| 55 | 245kV, 3150A Bus coupler bay module complete with Bus isolators and earthing switches, CB, 6 core CTs, SF6 gas monitoring system, marshalling box, LCC etc. in line with Technical specification. |
| 56 | 245kV, 3150A Line Bay modules complete with Bus Isolators & Earthing switch, CB, 6 core CTs, Earthing switch, line side isolator with high speed E/S, marshalling box, SF6 gas monitoring system, LCC etc. for complete bay. |
| 57 | 245kV, a set of 3 single phase (Isolated) Gas Insulated metal enclosed 3150A Busbars (GIB) each enclosed in bus enclosures and connecting the line bay module to respective SF6 to AIS bushing as per layout drawing attached with the tender document.SF6 to AIS Bushing also forms part of this item. Each set of Gas Insulated Bus bars (GIB) shall be complete with required gas monitoring system, safety grounding, bends/elbows, non-magnetic support structures, flexible bellows/ expansion joints (if required). |
| 58 | POTHEAD YARD EQUIPMENT |
| 59 | 245 kV Pothead yard consisting of the following equipment |
| 60 | 212kV,216kV MCOV, Class 4, 20kA rated discharge, single phase station class, ZnO surge arrestor complete with surge counter/ leakage meter, terminal connector, mounting structure etc. |
| 61 | 245 kV, 3150A, 3 phase gang operated, Disconnector along with live side Earth switch, support insulators, terminal connectors, support structure & operating mechanism as per technical specifications |
| 62 | 245kV, Bus Post Insulator with Al pipe holding clamp, mounting structure etc. |
| 63 | 245kV, 1200A, 0.625mH, single phase Line Traps complete with pedestal, support insulators and mounting structure etc. |
| 64 | 245kV, 4400pF, 3 core single phase line capacitive voltage transformers, ratio 220/√3kV- 110/√3V- 110/√3V- 110/√3Vcomplete with mounting structures, marshalling box, terminal box etc. as per tender specification. Insulator shall be rated for 1050kVp BIL as per IEC. |
| 65 | GI Structure for the termination gantries, lightening protection, earthing, busbar/al tube etc. as required |
| 66 | PLCC SYSTEM |
| 67 | PLCC equipment for both ends inclusive of the following |
| 68 | PLCC Boards consisting of line coupling filters, Redundant PLCC system, Tele protection device, Digital Multiplexer, Data Modem, 75-ohm HF cable, space heaters, exchange, telephones etc. |
| 69 | OTHER |
| 70 | Grounding conductor/Cable/wire along with associated accessories for grounding of all non-current carrying items of equipment, transformer neutrals, Gen neutrals etc. |
| 71 | Any Additional Spares required for 5-year trouble free operation period as recommended by Bidder over and above Mandatory Spares. List to be furnished along with price for consideration of the Employer. Notes: 1. The Above PRICE SCHEDULE V will not be considered for evaluation of L1 price. 2. The above price schedule shall also be submitted along with Techno-Commercial offer without indicating the prices. 3. Details of item description(without Price) at Sl.No.1 shall be submitted with Techno-Commercial Offer Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Tender Published
Tender notice published.
CompletedCorrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-2 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-3 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-4 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-5 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-6 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-7 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-8 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-9 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-10 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-11 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-12 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-13 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-14 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-15 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-16 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-17 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-18 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-19 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-20 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-21 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-22 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-23 Issued
Clarifications on tender conditions and amendments issued.
CompletedCorrigendum-24 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 7 daysCorrigendum-25 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 7 daysCorrigendum-26 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 7 daysCorrigendum-27 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 7 daysCorrigendum-28 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 7 daysBid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 7 daysBid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 8 days