Tender For Repair/ Maintenance Of Vcbs, Las, Ab Switch, Dehydration Of Power Transformer, Repair Of Ht/ Oh Line/ Ug Cable At 33 Kv Substation Danapur And Repair/ Maintenance Of 11 Kv Ht Distribution System Including God Ht 11 Kv Aerial Bunch Cable, 1
Tender Value
37 Lakhs
Estimated cost
Bid Submission
22 Sep 2026
20 days left
EMD
74000
Bank guarantee accepted
Document Fee
500
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Patna → Bihar
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Repair/ Maintenance Of Vcbs, Las, Ab Switch, Dehydration Of Power Transformer, Repair Of Ht/ Oh Line/ Ug Cable At 33 Kv Substation Danapur And Repair/ Maintenance Of 11 Kv Ht Distribution System Including God Ht 11 Kv Aerial Bunch Cable, 11 Kv Rmu, Dehydration Of Distribution Transformer And Connected Works At Danapur Cantt Under Ge Danapur
BOQ
| Sl. No. | Item Description |
| 1 | Supply and fixing gang operated air break switches, triple pole, manually operated, mounted on insulators and steel frame, with operating mechanism worked from ground level horizontal type /Vertical type in double stack type for rating upto 400 Amps, 33000 volts complete with GI operating pipe of heavy duty including taking down unserviceable one complete all as specified and directed. |
| 2 | Taking down and repairing/overhauling of air break gang operated switch with DO fuse unit 11 KV/ 33 KV rating 200 Amp/400 Amp capacity triple pole mechanically operated mounted on insulators and steel frame installed vertically / horizontally , replacement of broken/worn-out components, oiling and greasing of mechanical moving parts, smoothing and polishing of electric contacts with providing conducting jelly of contacts refixed the same after repair including proper allienment complete all as specified and directed. (Note:- Worn out component/ insulators / ASCR shall be measured and paid separately under respective items of this schedule.) |
| 3 | Supply only Female contact or fixed contact heavy duty and high conductive metal complete capacity 400 Amp suitbale for 33 KV rated horizontal GOD complete all as specified and directed. |
| 4 | Supply only Male contact or Moving contact heavy duty and high conductive metal complete capacity 400 Amp suitbale for 33 KV rated horizontal complete all as specified and directed. |
| 5 | Supply only post insulator suitable for 33 KV GOD as per sample complete all as specified and directed. |
| 6 | Supply only Tinned copper flexible jumper of capacity 200A/400A suitable for 33 KV complete all as specified and directed. |
| 7 | Supply only Fixed top contact & Fixed bottom contact 33 KV 400 Amp for DO fuse unit complete all as specified and directed. |
| 8 | Supply only Fiber glass tube with metalic fittings both ends suitable for DO fuse 33 KV complete all as specified and directed. |
| 9 | Supply only mild steel jumper carrier suitable for 33 KV GOD as per sample complete all as specified and directed. |
| 10 | Supply only back connector plate for 33 KV GOD as per sample complete all as specified and directed. |
| 11 | M & L for restraining of HT /LT over head line single ACSR conductor comprising of any size of conductor aluminium/copper/GI after opening binding wire from insulators and replace binding wire and achieved permissible sag limit of over head line conductor complete all as specified and directed. |
| 12 | S & F lithium battery for RMU ER 14250, 3.6V, 1/2AA,1200mAh including taking out unserviceable battery complete all as specified and directed. |
| 13 | M&L for Dehydration of transformers oil minimum three cycles to achieve dielectric strength up to 60 KV in 2.5 mm gap electrode including toping up of Transformer oil if required at site complete all as specified and directed. Note: (i) Dehydration of transformer oil shall be carried out at site and contractor shall be taken the testing result before and after dehydration of oil and shown to the EIC at site and maintain necessary documents for record . (ii) Dehydration Machine with all T&P & Transformer oil testing machine for dehydration of Transformer oil and necessary transportation for the machines is arrange by contractor . (iii) Oil required for topping up the transformer will be measured & paid separatly. |
| 14 | Supply and topup of transformer oil EHV as per IS 335 of 2018 with dielectric strength up to 60 KV in 2.5 mm gap electrode complete and including necessary transportation complete all as specified and directed. |
| 15 | Supply and replace of silica gel cristal complete all as specified and directed. |
| 16 | M & L for clearing, removal of all vegetation, bushes, weeds, grass and unwanted growth from entire substation area including arount equipment,foundation, Cable trench, inside boundary wall, cleaning of surfaces using wire brushing, scraping and emery paper/mechanical cleaning to remove rust, dust and loose paint, applying two coats of approved synthetic enamel/aluminium paint of approved shade,Painting of complete 33/11 kV Outdoor Substation consisting of 04 Nos of transformer (2000 kVA-01 No,1 MVA T/F-02 Nos and Station Service Transformer-01 No) complete switchyard steel structures, gantries, bus supports, CT/PT structures, isolators, GOAB switches, marshalling kiosks, control boxes, , transformer radiators, conservators,cable trench covers, equipment supports and all other ferrous metallic parts including repainting of danger notices, touch-up painting, scaffolding, labour, tools & plants, consumables, transportation, disposal of debris and all incidental works, complete in all respects as specified and directed. |
| 17 | Supply and fixing Lead acid battery 2 volt 200 AH TOBULAR (TBS) complete all as specified and directed. |
| 18 | M & L in repair for earthing to OH/Sub stn with galvanised steel earth plate electrode 60cm x 60cm x 6mm thick, buried directly in ground (earth pit not less than 2.25m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level connected to main earth lead GI wire 4 mm dia by means of bolts, nut, check nuts and washers of galvanized iron or steel all as shown in electrical plate No.3 of MES Schedule pt-I 2009, GI earth lead wire protected by GI pipe 15mm dia light grade and connected to earth test point including excavation in any type of soil,returning filling, disposal of soil, providing charcoal dust and common salt upto top edge of earth plate, construction of PCC pit with RCC cover, funnel, watering pipe of 20mm dia GI light grade and provision of earth test point including testing on completion complete all as specified and directed. Note: Main earth lead beyond 7.5 meter shall measured and paid saperatly. |
| 19 | Description all as per above item no 18 but main earth lead 32 x 6 mm galvanised iron strip complete all as specified and directed. |
| 20 | M&L for Cable jointing kit for 33 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm including testing complete all as specified and directed. |
| 21 | M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm including testing complete all as specified and directed. |
| 22 | M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm including testing complete all as specified and directed. |
| 23 | Supply and fixing cable jointing kit for 11 KV grade cable for straight through outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cable of size 50 to 95 sqmm including testing complete all as specified and directed. |
| 24 | M&L for Synthetic insulating rubber mat suitable for 33 KV HT installation of size 2m x 1m x 2.5mm complete all as specified and directed. |
| 25 | Supply and fixing digital over current protection relay (3 OC + 1 EF & INST. Protection ) with micro processor based complete all as specified and directed .NOTE: - Relay is suitable as per existing type/ Make for 11/ 33 KV VCB'S/ Control Panel. |
| 26 | Repair/ Servicing/ maintenance of Current/ Potential transformer (CT and PT) 33 KV outdoor type, steel structure mounted type of any capacity including disconnecting of CT/PT from electric system including taking out from existing position, decanning of transformer oil, opening of cover complete checking of all connection and including replacing of old transformer oil and all gaskets, replacement all coonective control wiring from CT/PT to Control panel complete and new painting as per existing and providing greasing/lubrication to other jointing/rusting components, reconditioning electric connections, replacinig unserviceable HT bushing, rubber / cork oil seals and damage spindle as required complete all as specified and ditected. |
| 27 | Servicing / Calibration to 33 KV HT VCB panel and PCOB for Vaccum interruptor complete including the following : switching off electric supply, Checking of mechanical system for proper functioning, replacing closing buffer, triping buffer (VMX type), V I connection gap check, motor coil resistance check, closing coil resistance check, spring charging cut off switch check, aux switch check, NO-NC states check, trip coil resistance check, testing details, timing test, oil value test, breaker timing test, connector resistance test, IR value test, HV test, mechanical and electrical mechanism check, counter reading check, shock observer check, pre close/ post close circuit check, test and service position limit switch check, breaker drive screw operation check, trip coil assemble operation check, mechanical latch. Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the VCB including connection to HT panel complete to be replaced where reqd all as specified and directed. Note:- (1) Maitenance of all HT VCB will be carried out as per maintenance schedule (2) Testing of above job to be carried out by engineers of authorised dealer/service centre. (3) Replacing new items shall be measured and paid separately as supply only |
| 28 | Servicing / Calibration to 11KV HT VCB panel complete including the following (a) Taking out 11KV HT VCB of 630 Amps rating trolley from HT Panel after switching off electric supply.Checking of mechanical system for proper functioning of upward/downward movement of HT VCB trolley including replacing closing buffer, triping buffer (VMX type), VI connection gap check, motor coil resistance check, closing coil resistance check, spring charging cut off switch check, aux switch check, NO-NC states check, trip coil resistance check, testing details, timing test, oil value test, breaker timing test, connector resistance test, IR value test, HV test, mechanical and electrical mechanism check, counter reading check, shock observer check, pre close/ post close circuit check, test and service position limit switch check, breaker drive screw operation check, trip coil assemble operation check, mechanical latch . Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the VCB including connection to HT panel complete to be replaced where reqd all as specified and directed. Note:- (1) Maitenance of all HT VCB will be carried out as per maintenance schedule (2) Testing of above job to be carried out by engineers of authorised dealer/service centre. (3) Replacing new items shall be measured and paid separately as supply only. |
| 29 | Servicing/ testing/ calibration of 11 kV, 12 kV class, 630 Amp, 26.3 kA SF6 Gas Insulated Ring Main Unit (CG Arista-S or equivalent) conforming to IEC 62271-100/200 including cleaning of complete RMU, busbar and cable compartments, inspection and lubrication of operating mechanism, load break switch contact inspection and earth switch, tightening of all power/control terminals, checking of interlocks, auxiliary contacts, position indicators, IR test, contact resistance test, functional test, earth continuity test, SF6 gas pressure and density check, electronic leak detection, vacuuming and refilling with new SF6 gas (if required), replacement of minor consumables (nuts, bolts, ferrules, cable lugs, contact cleaner, grease, gaskets), final testing, commissioning and submission of test reports complete all as specified and directed. |
| 30 | Supply only shunt closing/tripping coil operated on 110 /30 volt system suitable for working of relay of HT SF6 / VCB complete all as specified and directed. |
| 31 | Supply and fixing in repairs spring charging motor suitable for fixing with 33/11 KV indoor type VCB panels complete all as specified and directed. |
| 32 | Supply and fixing in replacement vaccum interputer suitable for 11 KV VCB trolly complete including dismantling, installation, contact travel adjustment, timing test and commissioning all as specified and directed. |
| 33 | Supply and fixing in repairs moving contacts of VCB made of copper and suitable for 11 KV VCB Trolley compete all as specified and directed. |
| 34 | Supply & fixing meter devices 3 phase digital type Amp meter 0-120 Amp class 0.5 of size 96 mmx96 mm to match the ratio of existing CTs compete all as specified and directed. |
| 35 | Supply & fixing meter devices 3 phase digital type Volt Meter 0- 12 KV class 0.5 of size 96mm x 96 mm to match the ratio of existing CTs compete all as specified and directed. |
| 36 | Supply & fixing Isolating contact assembly 400/630/800 Amps suitable for 11 KV/400/630/800 Amp VCB Panel compete all as specified and directed. |
| 37 | Supply & fixing TNC switch for 11 KV VCB Panel compete all as specified and directed. |
| 38 | Supply & fixing Indication lamp LED type suitable for 230 Volts AC 50Hz and 110/30 Volts DC supply compete all as specified and directed. |
| 39 | Supply & Refilling SF6 Gas compete all as specified and directed. |
| 40 | Supply Operating Handle Suitable for RMU compete all as specified and directed. |
| 41 | Supply & fixing lightening arrestor expulsion type complete with all fitting,distribution class, discharge capacity 65 kilo amp suitable for 33 KV system pole mounting type conforming to IS - 3070 Part-I including taking down existing unserviceable one complete all as specified and as directed. |
| 42 | Supply and fixing Pin type insulator, porcelain, vitreous, white, brown or green insulator, suitable for 33000 volts grade including taking out of unsv one complete all as specified and directed. |
| 43 | Material and labour for spreading and leveling evenly (any thickness) 40 mm graded stone aggregated complete all as specified and directed. |
| 44 | Supply and fixing as in repairs PG clamp die cast aluminium of suitable size and for fixing clampling ACSR conductor connections for PT's CTs isolators complete all as specified and directed. Please Enable Macros to View BoQ information |
| 45 | Supply and fixing as in repairs PG clamp die cast aluminium of suitable size and for fixing clampling ACSR conductor connections for PT's CTs isolators complete all as specified and directed. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 01, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedSep 22, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 20 daysSep 29, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 27 daysTender Documents
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