Military Engineer Services-MES has published Corrigendum - Special Repair To Vcb And Associated Works At Sub Station 1 At Afssr Gurugram Under Ge Af Gurgaon. Submission Date for this Tender is 10-01-2020. Circuit Breakers Tenders in GE (AF) Gurgaon Haryana. Bidders can get complete Tender details and download the document.
| Name of Work : SPECIAL REPAIR TO VCB AND ASSOCIATED WORKS AT SUB STATION-1 AT AFSSR GURUGRAM UNDER GE (AF) GURGAON | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | S&F in renewal silica Jel breather assy with vent pipe for indoor/outdoor transformer of the follolwing capacity :- | |||
| 2 | 1.01 | up to 315 KVA | 1 | Each | |
| 3 | 1.02 | 315 KVA to 1000 KVA | 1 | Each | |
| 4 | 2 | Supply & Filling /pouring of transformer oil of low viscosity having dielectric strength not less than 60 KV after draining out old transformer oil complete all as specified and as directed. \nNOTE:- Dielectric strength test shall be carried out at site before poring/filling in transformers in the presence of Engr-in-Charge on the site. | 720 | Litre | |
| 5 | 3 | M&L for painting of transformer with existing colour, by using spraying machine 1000 KVA before cleaning/preparation of outer surface of transformer including writing of SM No, MES No. and capacity of transformer in red colour complete all as specified and directed. | 1 | Each job | |
| 6 | 4 | Taking down the HT vacuum circuit breaker/Oil Circuit breaker of any capacity 11 KV,for servicing, repairs, replacement of defective/worn out components and re-assembling complete comprising of the following including testing and commissioning to the entire satisfaction of Engineer-in-Charge. Location :- Tech Sub Stations. | 5 | Each | |
| 7 | 4.01 | a) Dismantling the HT CB from the enclosure consisting of interuper assembly, socket contacts , checking the serviceability of the following parts carefully including cleaning, adjustments, replacement of defective/worn out parts and re-assembling the unit complete for the followings :- | |||
| 8 | 4.02 | (i) Cleaning the external surface of bushings with CTC or Liquid ammonia to remove the accumulation of dirt or any other deposits. Inspection of bushings and make sure that vibration due to breaker operation have not caused the bushings to move resulting misallignment of contacts. | |||
| 9 | 4.03 | (ii) Checking the interrupter assembly and contacts. Checking the allignment of contacts and setting the contact surfaces to bare firm and uniform pressure and adjust the gap as per manufacterurs tolerance. Badly potted contacts needs to be replaced.\nNote: Contacts shall be ordered separately. | |||
| 10 | 4.04 | (iii) Checking the breaker bushing of bus bar and circuit side inspecting the interval surface carefully for any charging/trackings,replacement of bushings. | |||
| 11 | 4.05 | (b) Dismantling the spring charging mechanism of the HTCB, checking the operations of the closing/tripping trough closing/tripping coils electrically as well as manual charging including cleaning adjustments and replacement of defective /worn out parts re-assembly complete for the following :- | |||
| 12 | 4.06 | (i) Checking the condition of the spring charging motor along with gear box including servicing to the motor bushes, lubrication of bearing surfaces etc. | |||
| 13 | 4.07 | (ii) Checking the ratchet wheel assembly, driving and charging parts including replacement of defective ratchet wheel and parts. | |||
| 14 | 4.08 | (iii) Checking the type and release prop and dash pot assembly making necessary adjustment including replacement of defective/warn out components. | |||
| 15 | 4.09 | (iv) Checking the operating mechanism of the breaker and ensure its operation freely through entire stroke. Parts which shows excessive wear and tear to be replaced or adjusted as per manufacterurs tolerance. | |||
| 16 | 4.1 | (v) Checking of operating voltage at mechanism terminals and tripping arrangement for positive tripping. Contacts to be examined for their condition and operation. Dress the pitted contactcts and replace if necessary. | |||
| 17 | 4.11 | (vi) Review the adjustment of all pressure switches and lockout devices. | |||
| 18 | 4.12 | (vii) Inspecting all bolts, nuts, pins and coller pins are in place and they are tight and opened properly. | |||
| 19 | 4.13 | (viii) Inspetion, cleaning and relubrication of circuit earthing truck with Aseol Molite or Moliday 47. | |||
| 20 | 4.14 | Note:- (i) Cost of additional hardware like, bolts, nuts , washers and spring washers, petroliumjelly CTC, to put the breaker in serviceable condition is deemed to be included in the rates quoted. \n(ii) Note:- Spare parts will be measured and paid seprately under item srl No. 5.00. | |||
| 21 | 5 | Supply of the following material for VCBs :- | |||
| 22 | 5.01 | (i) Power Pack 24 Volt 7 Ah with suitable backup | 1 | Each | |
| 23 | 5.02 | (ii) Isolating Contact 2 Pair Finger Type | 5 | Each | |
| 24 | 5.03 | (iii) Isolating Contact 2 Pair Flat Type | 5 | Each | |
| 25 | 5.04 | (iv) Vaccum Interrupter | 1 | Each | |
| 26 | 5.05 | (v) Flexible connection | 2 | Each | |
| 27 | 5.06 | (vi) Shutter for racking Shaft | 2 | Each | |
| 28 | 5.07 | (vii) Closing Coil 110V AC/DC | 2 | Each | |
| 29 | 5.08 | (viii) Shunt Trip Coil 24V DC/110V DC | 1 | Each | |
| 30 | 5.09 | (ix) Ratchet Wheel | 2 | Each | |
| 31 | 5.1 | (x) Motor cut off switch | 2 | Each | |
| 32 | 5.11 | (xi) Bus bar Spout 800A | 1 | Each set | |
| 33 | 5.12 | (xii) Circuit Spout 800A | 1 | Each Set | |
| 34 | 5.13 | (xiii) Shutter for bus bar spout | 4 | Each | |
| 35 | 5.14 | (xiv) Shutter operating Link | 3 | Each | |
| 36 | 5.15 | (xv) Draw out type 3 Phase PT 11KV/110V 200 VA class 1.0 cast resin wound type, 3Core with enclosure, wheels, HT bushings and HT fuses mounted on with drawable truck. | 2 | Each | |
| 37 | 5.16 | (xvi) HT Epoxy CT 200-100/5-5A with 15 VA class 1.0 for metering and 5 P 10 for protection. | 2 | Each set | |
| 38 | 5.17 | (xvii) HT Epoxy CT 100-50/5-5A with 15 VA class 1.0 for metering and 5 P 10 for protection. | 1 | Each set | |
| 39 | 5.18 | (xviii) LED indication Lamp | 6 | Each | |
| 40 | 5.19 | (xix) Service/Test position Limit Switch | 3 | Each | |
| 41 | 5.2 | (xx) Space heater | 4 | Each | |
| 42 | 5.21 | (xxi) Thermostat for Space heater | 4 | Each | |
| 43 | 5.22 | (xxii) HT Tape roll 16.6 M | 3 | Each | |
| 44 | 5.23 | (xxiii) Spring Motor with gear box | 1 | Each | |
| 45 | 5.24 | (xxiv) Bus bar supporting insulator | 3 | Each | |
| 46 | 5.25 | (xxv) MCB SP 6 Amps 230 Volts | 12 | Each | |
| 47 | 5.26 | (xxvi) Epoxy body 11KV 630A | 2 | Each | |
| 48 | 5.27 | (xxvii) Auxialary contact Male&Female | 3 | Each Set | |
| 49 | 6 | Supply and jointing cold shrinkable end termination indoor joint suitable for HT 11 KV XLPE cable of size 95 -185 sqmm, 3 core complete all as specified and directed. | 4 | Each | |
| 50 | 7 | Supply and filling SF6 gas in existing RMU of 630 Amps including all charges all as specified and directed. | 2 | KG | |
| 51 | 8 | Supply and laying 2.5mm thick synthetic rubber mat Confirming to IS:15652 2006 and relavant ISs along with suitable adhesive/chemibound, PU Resin, water proofing compound and sealing material suitable for working Voltage up to 11KV with trolley movement complete all as specified and as directed. | 27 | Sqm | |
| 52 | 9 | Taking down unserviceble CDG relay and Supply, install, testing and commissioning of self powered microprocessor based numerical 3 Phase over current and earth fault relay with high set for both O/C and E/F, fault records and suitable for panel mounting with auxialiary supply voltage range 24 V to 110 V model MC 61A as per site requirement complete all as specified and directed. | 4 | Set | |
| 53 | 10 | M & L for Earthing in repair complete with galvanised steel earth plate electrode 60cmx60cmx6.0mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below normal ground level) with top edge of the plate not less than 1.5 metre below normal ground level, connected to and including using galvanised iron strip 32×6mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth plate surrounded by packed layer of char coal dust and common salt, 15cm thick all around bottom and top and watering pipe 20mm bore of GI light grade with funnel, wire mesh and 40 mm dia GI protection pipe medium grade all as shown in electrical plate No 3 of SSR Part-I and connected to earthing test point, main switch board and testing on completion including excavation, earth work concrete pit with 80mm thick RCC cover in RCC 1:2:4 type B-1 duly reinforced with MS bars 8mm dia @ 150C/C both ways and pit chamber in PCC 1:2:4 type B-1 with 2 Nos suitable lifting handles of 12mm MS bar complete all as specified and directed. | 8 | Each | |
| 54 | 11 | Supply and fix GI strip as repair in trenches or wall 32 x 6 mm galvanised iron strip complete all as specified and directed. | 45 | RM |
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