Tender For Providing Electrical Installations For Licirent Out& Shifting Of Bsnl Office To Staff Quarters ,Repairs & Servicing Of Substation, Sitc Of Submersible Pump Set At Ranaghat Te Building ,District: Nadia Under Cal Ba.(Sh:-Repairs And Servicing Of
Tender Overview
Project Description
Providing Electrical installations for LICIrent out& shifting of BSNL office to staff quarters ,Repairs & Servicing of Substation, SITC of submersible pump set at Ranaghat TE Building ,District: Nadia Under Cal BA.(SH:-Repairs and Servicing of Substation)
BOQ
| Sl. No. | Item Description |
| 1 | Dehydration & filtration of transformer oil to improve the di-electric strength up to 40 KV per minute (as per IS specification) for 1 nos 150 KVA transformer of 11 KV / 415 Volt & 2 nos HT OCB,i/c cleaning of transformer and tightning nut bolts etc. complete as reqd.i) Dielectric strength of the transformer oil after dehydration should be shown at site as per the letest I.S. specification. |
| 2 | Acidity testing of transformer oil should be checked after dehydration & test certificate from the recognized testing laboratory should be furnished etc. Complete as reqd. |
| 3 | Supplying and pouring of new transformer oil for topping up the existing oil as per IS specification etc as required.( For 1 Nos. 150 KVA Transformers& 2 nos HT OCB ) |
| 4 | Thorough overhauling testing, checking of 2 unit HT panel Bus bar /CT/spout link, washing cleaning and tightning the nut,bolt of bus bar cable termination other nut,bolt, screw supply against broken out nut, bolt,washer etc.and all jointing point insulated by two layer lapping ofElectrical Tape is a highly conformable self-fusing EPR (Ethylene Propylene Rubber) based, high voltage splicing tape etc.and commissioning the sameetc. complete as reqd. |
| 5 | Checking, testing and drawout of 400 Amp., 6.6/11 KV bulk oil circuit breaker also overhauling, cleaning & checking of the overload and shunt trip release, repairing of copper contacts, spring locking arrangement, cleaning, checking & lubricating of lifting & lowering mechanism and inject the secondaey Voltage and Current for testing the tripping arrangemement by secondary injector etc. complete as reqd. |
| 6 | Dismelting theIDMT relay, checking,overhauling, cleaning part by part and necessary repairing and replacement and testing the relay testing kit i/c correct setting the tripping time in second of over load, earth fault and fitting, fixing, connecting, testing, checking & commissioning etc. as reqd. |
| 7 | Supply & replacing of Silica gel of the existing beather etc. as reqd |
| 8 | Supplying and fixing of Current Transformer unitSingle core, Single Ratio25 /5 A, 15VA, 5P10, Cl-1. TYPE “R”.(Metering cum protection CT) etc. complete as reqd. |
| 9 | Checking, testing the faulty 11KV / 110V, 3 Ph., 3- Limb, 3 wire, oil immersed, draw out type Potential transformer, having 100 VA, dismentling the same and transportation loading, unloading the same from Ranaghat TE Bldg to Kolkata work shop etc. and after repairing PT transportation from Kolkata workshop to Ranaghat TE Bldg. loading, unloading etc.as reqd. |
| 10 | Reparing of 11KV / 110V, 3 Ph., 3- Limb, 3 wire, oil immersed, draw out type Potential transformer, having 100 VA after drawing out the Potential transformer,Thorough servicing & overhauling the Potential transformer i/c lifting the core assembly after disconnecting the links from bushing, drain out old Tr. Oil i/c cleanning the main trank, removing the sludge & heat treatment of Core & coil for increasing the IR value and cleaning the sludge by hot oil spray tightnning the all terminal joints, replacement of all gaskets , oil seal etc. of HT & LT bushing etc. complete with cleaning stud bolts, nuts etc. after dismentling all the fitting and refixing the same, & pouring the Tr. oil etc. as reqd., reassambling testing, checking etc. complete as reqd. |
| 11 | Installation, testing and commissioning the 11KV / 110V, 3 Ph., 3- Limb, 3 wire, oil immersed, draw out type Potential transformer, having 100 VA, Potential Transformeri/c earthing, body earthing and connecting the LT side, connectin by suitable size copper wire etc. as reqd. |
| 12 | Supplying and fixing of 230 volt. AC/DC 100 Watt. Strip Heater etc. complete as reqd |
| 13 | Supplying and fixing of bimetalic thermostat etc. complete as reqd. |
| 14 | Repairing ofAutomatic Power factor improvementPanel , checking, testing of Automatic power factor correction relay, power capacitors, power contactors,control & power wiringandcleaning, servicing the same etc. complete as reqd. |
| 15 | Replacement of following rating 440 voltbox type heavy duty capacitors and other accessoriesi/c connection, testing, checking etc. complete as reqd.( M/s L&T or S/S make) |
| 16 | a) 10 KVAR |
| 17 | b) 5 KVAR |
| 18 | c) 2 KVAR |
| 19 | d) 32 Amp. HRC fuse |
| 20 | e) LED Type Indicating Lamp |
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