Public Works Department-PWD has published Supplying, Installing, Testing And Commissioning Of 630 Kva Transformer ( Standby ) At Chapoli Pumping Station At Canacona Constituency. Submission Date for this Tender is 08-07-2022. Transformer Supply Tenders in South Goa Goa. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 24-Jun-2022 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 08-07-2022 |
| Sl. No. | Item Description |
| 1 | Supply, installation, testing and commissioning of outdoor transformer 630KVA, 11KV/433V, 50Hz, AC capacity, oil immersed naturally cooled, ONAM, 3 phase, core type double wound copper Delta/ Star outdoor 11KV/433 V, 50 Hz, 3 phase with off load tap changer on HT side (manual) installing the Transformer on the existing RCC plinths after making modifications/ extension of the plinth before installation. Commissioning of the new transformer should be done in eight hours of shut down time to make Kirloskar/ Crompton/ Voltamp/ Essennar with first filling of oil complete set as per IS: 1180 (Energy Efficiency Level II) as per GED standard specification |
| 2 | Total Losses at 50% Loading: 1.86 KW (Max) Total Losses at 100% Loading: 5.3 KW (Max) A) Bare bushing on HV and LT side cable end box for terminating required number of cables B) Off load tap changer (+5% to -10% at 2.5% on HV) with knob with locking device C) Earthing terminals: 2 nos D) Bottom filter cum drain valve E) Top filter valve F) BUCHOLZ retay with 2 shut off valves G) Dehydrators and breathers with silica gel H) Air ventilator/ Emergency release I) Thermometer pockets with thermometer J) Seperate brought out neutral terminal |
| 3 | Disconnecting, dismantling and shifting the existing 200 KVA, 11KV/440 Volts transformer by using a hired mobile crane from the pedestal/ plinth and storing of the same as directed by site incharge/ Engineer |
| 4 | Supply and erection of 11 KV, 400 A, 16 KV, 3-phase, 3 pin type, gang operated, double break, horizontal AB switch along with support insulators, operating mechanism along with drum contacts, base channel, down pipe, arcing horn, terminal connectors complete as per technical specifications as per Goa Electricity Department and it should be ISI standard 9921 of make Pectil/ Universal (including disconnection, removal of existing GOAB switch along with structure supports etc.) |
| 5 | Supply, installation, testing and commissioning of 200A, 11KV dropout lift of fuse consisting of channel iron base having 2 nos, 11KV post insulators per phase, complete with fuse carrier of SRBP tube with heavily tinned non farrous metal parts and spring loaded phosper bronze contact of make PACTIL/ Universal (including disconnection, removal of existing Fuse unit along with structure supports, etc.) |
| 6 | Supply, installation, testing and commissioning of 9KV distribution class, lightning arrester with metal parts suitable for 11KV system of make: Lamco/ Elpro/ Shreem (including disconnection, removal of existing Fuse unit along with structure supports, etc.) |
| 7 | Supply and fixing of 11KV Disc-insulators with metal parts of make: GEO industries/ Aditya Birla Insulators/ Hindustan Chemicals/ BHEL industries |
| 8 | Analog Ammeter 0-500 Amps of approved make with selector switch -- 3 nos. |
| 9 | Supply and erection of HDGI steel for supports with channel and angles, hardwares, clamps, etc. |
| 10 | Supply and erecting ACSR conductor of size 6/1-2.59 mm complete (weasel) (127.7 kg/km) as per specification (for inter connection and earthing of pole equipments) |
| 11 | Earthing with GI earth plate 600 mm x 600 mm x 6 mm thick including accessories and providing masonry enclosure with CI/RCC coverhaving locking/Lifting arrangement and watering pipe etc. (but without charcoal or coke and salt) as required as per the Earthing Drawing provided by the Engineer-Incharge.The scope of work includes the following: a) Excavation ofpit of size 1.0x1.0x 3.0 mtrs(min) and disposal of excavated soil.c)Watering GI pipe, 20mm, Class B,with funnel as per specs. d)Charcoal/salt as per specs ( paid seperately). e) Refilling the pit of size 1.0x1.0x 3.0 mtrs(min) with soft black agriculture soil of minimum resistivity i/c transportation. e)Masonary chamber with proper foundation, cover plate and locking arrangement. f) Testing of earth value with earth megger and certifications of its value. Aluminium tag with embossed earthing value to be attached to the pipe.g)watering arrangement(plumbing will be paid seperately). |
| 12 | In rocky strata |
| 13 | Extra for using salt and charcoal for GI or copper plate earth electrode as required( 96 Kgs of Charcoal and 5 Kgs of Salt) |
| 14 | Supplying and laying 25 mmx 5 mm GI strip at 0.5 m below ground as strip earth electrode including soldering etc. as required |
| 15 | Supply and laying of copper flat of size 50mm x 3mm for TRAFO, BODY and NEUTRAL earthing |
| 16 | Fabrication and fixing of fencing with 50 x 50 x 5mm MS Angle posts at 2 mtr distance and additional corner support and GI wire mesh 10 SWG 2.5" x 2.5" of 1.8 mtr. Height from ground level complete with fixing by using 25 x 3mm MS flat and civil works excavation concreting for posts supports and gate support |
| 17 | Fabrication and fixing of 1 mtr wide gate fabricated with GI pipe MS angle and covering with GI wire mesh complete with hinges and locking arrangement and site supports etc. |
| 18 | Supply and spreading of 40mm metal granite gelly |
| 19 | Supply, installation, testing and commissioning of Outdoor Cubicle Panel self supported with stand consists of fixed type 1200 Amps TP ACB made out with 2.5mm CRCA sheet duly powder quoted with provision for termination of indoor and outgoing cables complete as require L & T |
| 20 | Supply, installation, testing and commissioning of IP 52 indoor cubicle floor mounting change over panel suitable to work on 3 phase 4 wire, 415 V, 50Hz system. The switch board is flush front, compartmentalised, to allow cable entry from bottom, dust and vermin proof complete with interconnections, busbar wirings, door and fully gasketed and sealing arrangements to be provided for metering compartments. The cubicle should be properly derusted and painted powder coating ( 7 tank process) and oven process. The panel shall be constructed of 2.5mm frame/ 2mm doors/ covers CRCA sheets consists of 2 Nos - 1200 Amps TP ACB"s of make: L&T/ siemens/ Schneider (manual drawout type) with Ammeter, Voltmeter, Kwh meter and indication lamps both ACB"s should be electrical and mechanical interlock (for 2 nos Trafo incomer GED supply) and 1 no 4 Pole Manual change over switch with indicating lamps complete with all accessories (for DG and GED supply) |
| 21 | Supply of3 1/2 core armoured PVC/XLPE insulated, PVC sheathed aluminium conductor cable of 1.1 KV grade with ISI mark conforming to IS:1554(Part I) ,IS:7098(Part I) with latest amendments of following size. |
| 22 | 3 1/2 Core 400 sq. mm |
| 23 | Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of size exceeding 120 sq.mm but not exceeding 400 sq.mm direct in ground including excavation in the form of a trench as per Cable Trench Drawing provided by the Engineer-Incharge,sand cushioning with screened sand bed of 20mm thick , protective covering with bricks placed breadth-wise on top of cable all over the run( the brick protection shall cover the cable and project atleast 5 cms over the sides of the cable)and backfilling the excavated earth without stones or hard material and making the surface proper with 15 cm crown on the top complete as required. |
| 24 | In rocky strata |
| 25 | Supplying and making cable end terminations with brass compression gland and aluminium lugs for folowing sizes of 3 1/2 Core PVC insulated PVC sheathed/XLPE aluminium conductor cable of 1.1 KV grade, completeas required. |
| 26 | 3 1/2x 400 Sq. mm. |
| 27 | Supplying and fixing 11 KV danger notic plate of 200 mm x 150mm made of mild steel at least 2 mm thick and vitreous enamelled white lb both side with inscription in single red colour on front side as required |
| 28 | Supplying and fixing of 2 nos ACB fire extinguishers, 2 nos fire buckets filled with sand with stand- 2 sets, 11 KV hand gloves- 01 pair, 11 KV discharge rod- 01 no, rubber mats etc. as per requirement of electrical inspecor complete set |
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