STANDARDIZATION/ IMPROVEMENT TO POWER INFRASTRUCTURE FOR CRITICAL EQUIPMENT AT AFS JODHPUR

Amount

Supply and Fix remote and automatic operated transfer switching equipment (ATS) in sheet metal enclosure 4 pole of capacity 200 Amp as specified and directed.

SITC new isolation transformer of capacity 75KVAcopper winding three phase outdoor type , IP 55 , oil cooled, input voltage 415±5% volt phase to phase, output including oil and PCC foundation of desired volume and strength including testing and commissioning all as specified and directed by Engr-in-charge ( at ER-II)

SITC new isolation transformer of capacity 50 KVAcopper winding three phase outdoor type , IP 55 , oil cooled, input voltage 415±5% volt phase to phase, output including oil and PCC foundation of desired volume and strength including testing and commissioning all as specified and directed by Engr-in-charge ( at ER-II)

Supply, install, testing and commissioning of servo controlled Voltage stabilizer of capacity 150 KVA (Confirming to BIS 9815:Part-1: 1994) Three Phase, 50 Hz, Naturally Oil cooled, indoor, unbalanced type, copper wound, metallic body duly powder coated with lifting Hooks two nos, digital display type, relay free smooth and silent opreation with 1st filling of Transformer oil up to level having complete all as specified and directed by engr-in-charge of the following specification:- . (a) Input voltage 360V- 480V (b) Output voltage stabilized at any deigned /desired voltage 415 V + 1% (c) Rate frequency 50Hz (d) No distortion in wave form (e) Response time not to exceed 20 mile seconds (f) Sensitivity (+)1% (g) Rate of correction 8 volt/second for single phase and 13 V/ second for phase to phase (h) Efficiency more then 95% (j) Type of load : three phase, unbalanced type (k) Digital display voltmeter/Ammeter with multifunctional meter Protection:- (a) Over load/Short circuit protections (b) High/Low voltage cut off (c) By pass arrangement in case of emergency (d) Single phase sequence change/phase fail protection (e) Earth fault protection

Supply lay & testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) with stranded aluminum conductor, 1100 volts grade, laid in trenches/passing through pipe/duct or fixed to wall/pole etc., and connecting up complete all as specified and directed for the following size of cable:- (a) 95 Sqmm 4 Core

(b) 70 Sqmm 4 Core

(c) 50 Sqmm 4 Core

(d) 10 Sqmm 4 Core

Supply and fix in trench/wall / pole XLPE insulated PVC sheated armoured heavy duty HT electric cable with aluminium stranded conductor 11000 volt grade of sizes 95 Sqmm 3 Core complete all as specified and directed.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for foundation etc or for laying of cables, errection of poles, struts/stays etc not exceeding 10 sqm on plan and getting out in soft / loose soil complete all as specified and directed.

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25 cm in soft / hard dense soil complete all as specified and directed.

Removing excavated materials to a distance not exceeding 50 m and depositing where directed, at a level not exceeding 1.5 m above the starting point in soils complete all as specified and directed.

M&L Sand cusioning of tibba sand for XLPE cable with screened & washed sand & punning to provide a required cover complete all as specified and directed.

Supplying and laying reinforced precast concrete cable cover, Class HVP, Type I, flat, size 300mm x 180mm x 40mm complete all as specified and directed.

Supplying and laying reinforced precast concrete cable cover, Class LV, Type I, flat, size 250mm x 150mm x 40mm complete all as specified and directed.

Supply and fix in repair cable joint kit for 11 KV grade cable for indoor termination Heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size 95 to 120 sqmm complete all as specified and directed by the Engineer - in - Charge.

M&L in repair for earthing complete with GI earth plate electrode 60cmx60cmx6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to and including GI earth strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion and excavation and earth work in any type of soil, PCC 1:3:6 type C1 in chamber, precast RCC cover 50mm thick in cement concrete 1:2:4 type B1, reinforced with welded steel wire fabric or XPM (Weight not less than 4 Kg/Sqm) with cast iron frame, funnel with wire mesh, 20mm bore GI pipe medium grade watering pipe, lugs, 40mm bore GI pipe medium grade protection pipe upto 7.5m as directed.

Supply installation ,commissioning and testing of 11 KV Outdoor type extensible 4 way RMU floor mounted with internal eletrolytic grade copper bus bars, consisting of combinations of 630 Amp 2 Nos fixed manual load break switch as incomer & 2 Nos fixed type manual vaccum circuit breaker . All live parts , bus bars , LBSs connections of RMU shall be enclosed in on bodytank to avoid multiple interconnections & sealed for life robotically welded non magnetic and non ferrite grade stainledd stell tan grade 304 of minimum 2.5 mm thick having IP67 degree of protectionnfilled with SF6 gas as insulation with leakage rate less than 0.1% per year tested as per IEC 62271-200. the unit shall have front cable entry for ease of installation and shall have site replaceable bushings for ease of troubleshooting during breakdwon. RMU should be complete with all accessories such as terminal boots , VPIS, cable supports , all front cable terminations, mechanical indications for load break switch ON/OFF , manometer as per with IEC standards 62271-200,60056,60129,60625,60298,60420,60529 and 60694. Altitude of insulation up to 1000m as per IEC 60120. Extensible Bushing, if appicable shall be bolted type top mounted outside the tank for connection of external bus bar ,also the outer enclosure shall cover the full lenght of switchgear, to ensure IP3X+IP54 protection for cable boxes. RMU should be SCADA compitable. The Unit shall be internal arc proof 21 KA for sec for tank + Cable and tested and totally safe for human beings. The gas release & personnel safety with internal arc proof shall not depend on plinth design. The release of gas to be from the top of unit , so that evevn if person is operating the unit , opening the cover & ther are personnels near the sides of the RMU/plinth, top release will ensure their safety. The release is no case should be fron any side or bottom of unit , as the same is unsafe for operating personnel/pedestrain ro general public. Bidder shall provide type test report to prove compliance to the internal fault IAC-AFLR as per IEC-62271-200. Internal arc proof & testing shall be done with enclosure door in open condition, with switching devices in operation mode. 630 Aload break switch module for making of fault current alongwith Earth Switch of full making capacity Short time withstand current - 21 KA/3sec Making capacity 52.5 Kap , Auxillary contacts 02No+2NC power frequency with stand voltage -38 KV, impulse withstand voltage -95 KV , nomimaloperating gas pressure -1.4 bar abs, front cover mechanisum-IP 2X , cbale cover 3X, snap action mechanisum for manual operation and pad-lockable, cable box for front termination of the cable suitable upto 3 core 300Sqmm, 11KV XLPE cable, right angle non touch proof termination boots -1 set( R,Y,B) 630A load module for making of fault current alongwith Earth Switch of full making capacity Manual operated 630 A vaccum circuit braker having spring stored mechanism three position disconnector/ earthing switch downstream vaccum circuit breaker with pad locking feature. three position single spring mechanisum for disconnector/earthing switch with pad locking feature . LIve cable LED indicatiors thru capcitor voltage dividers mounted on the bushings Short time withstand current - 21 KA/3sec Making capacity 52.5 Kap , Auxillary contacts 02No+2NC power frequency with stand voltage -38 KV, impulse withstand voltage -98 KV , nomimaloperating gas pressure -1.4 bar abs, front cover mechanisum-IP 2X , cbale cover 3X Green( ON)/Red(off) push buttons to operate VCB 3O/C+ 1E/F self powered numerical protection relay with low and high set for over current and earth fault. Resign cast ring core protection CT plate mounted type : 40/ snap action mechanisum for manual A, 5P10, 2.5VA-3Nos Mechanical ON/OFF/EARTH/SPRING charge indicationb cable boxes should be Arc proof interlocked with respective earthing Switches. right angle non touch proof termination boots -1 set( R,Y,B)

M/s Prem Associates (BID ID -3514820)

M/s R K Enterprises (BID ID -3509469)

Keystone Constructionare (BID ID -3511543)

MONA GENERATOR SEVICES PVT. LTD. (BID ID -3509167)