86211 SPECIAL REPAIR / RENEWAL OF TRANSFORMERS 2 X 500 KVA IN PLACE OF BER TRANSFORMER 1 X 250 KVA AND 1 X 500 KVA AND HT PROTECTION SYSTEM ALONG WITH OTHER CONNECTED ACCESSORIES AT AFMC PUNE UNDER GE (CENTRAL) PUNE

Amount

Supply, install, testing and commissioning of plinth mounted step-down outdoor type distribution transformer complete with all standard fittings as per IS: 1180 and latest amendments thereafter, LEVEL III (Maximum Total loss 1422 Wats at 50% load and 4104 Watts at 100 % load at impedance 4.5%, 22KV /433 V (at No load) of Capacity 500 KVA, AC, 3Ph, 50 Htz 4 wire, core type, copper wound (copper 99.9% Purity Electrolytic grade wound) , oil immersed naturally air cooled, Oil natural/Air natural (ONAN) with external cooling tubes/fins, vector symbol Dyn-11, HV-delta, LV-Star connected complete with off load type tap changer (OCTC) hand operated winding Tap for voltage variation from + 5% to -10% in equal steps of + 2.5% of HV, Permissible temperature rise shall not exceed the limits of 45°C when measured by resistance method for transformer winding and 40°C measured by thermometer for top oil. The transformer shall be double wound, core type, non ageing, high permeability CRGO Prime core grade M-OH/ZDKH/TCH grade including of First filling of new transformer oil of suitable dielectric strength.

NOTES FOR SER. ITEM NO. 1.00 ABOVE : (a) The OEM of the transformers should have in house LAB Certificate for Accreditation from National Accreditation Board for Testing and Calibration laboratories. (b) Manufacturer /OEM must have type test / short circuit reports for each & every rating from CPRI / ERDA (matching all the major parameters including the Loss Figure) shall not be older than 5 years. (c) CPRI Short circuit test report for exactly similar transformer (matching all major electrical parameters including Loss Figure) shall not be older than 5 years to be furnished). (d) OEM should be BIS and BEE certified for all the ratings of the transformer that are to be submitted. (e) Rate quoted includes the cost of making and Testing of control wiring connection at the Transformer and RMU/VCB for the Temperature alarm/Trip, Gas alarm/Trip. The Control cable shall be measured and paid separately under relevant item. (f) The above job include the removal of electric connection from Old transformer and shifting it to MES Store yard within up to 2.5 Km all as directed by Engr-in-charge. (g) The transformer shall have complete standard fittings such as two earthing terminals with earthing symbols for body, Air release device, rating and terminal marking plates, conservator tank with oil filling hole, filter type drain valve and oil level gauge. The transformer shall also have dehydrating breather with first fill of dehydrating agent (silica Gel), drain cum sampling valve, winding temperature indicator and oil temperature indicator, lifting lugs for the complete transformer as well as core and winding assembly, pressure release device/explosion vent,unidirectional flat rollers , inspection holes, LV earthing arrangement (h) HT side cable box type consisting of 3 numbers of Porcelain bushing with Brass rods complete with nuts and washers, with cable glands suitable for reception / taping out 3 core HT cable 22 KV grade of size upto 185 Sqmm and a LT side cable box consisting of 4 numbers of porcelain bushing with Brass rods (Bimetallic flexible connecter and copper bus bar of suitable rated capacity with insulator support) and an additional neutral terminal brought outside the LV cable box for earthing etcwith complete with nuts and washers, with cable glands suitable for reception / taping out 3.5 core LT cable 1100 V grade of size upto 400 Sqmm.

NOTES FOR SER. ITEM NO. 1.00 TO 4.00 ABOVE CONTD.... (j) The contractor shall submit a letter of acceptance from the transformer manufacturer along with a sample, seeking approval. The manufacturer must clearly confirm in the letter that their company agrees to provide all requisite details and documentationand certification requirements as mentioned in the succeeding paragraphs. (k) Expenses/cost of FAT and necessary travel/freight/conveyance/stay expense for inspecting/testing officers as nominated by accepting officer for FAT shall be included in the rate quoted. (l) The existing transformer currently supplies power to vital installations as directed by EIC. Therefore, uninterrupted power supply must be ensured during the transition phase. Until the new transformer is fully installed and commissioned, the existing transformer must be temporarily shifted to a nearby suitable location to continue providing power. Man and material required for this temporary arrangement is deemed to be included in the abve work. Man and material for adequate temporary fencing is to be provided around the temporarily relocated transformer to ensure safety and prevent unauthorized access. (m) The contractor or his authorized representative shall submit the complete documentation and certificates to the Factory Acceptance Testing officer detailed by the department. The details shall include but not be limited to : (i) Rating of Tapping parameters/steps of the transformer. (ii) Maximum permissible temperature rise in the Core and Oil of transformer. (iii) Manufacturer details of the material used in core/winding conforming to CRGO specifications, including, Grade of CRGO, name of the manufacturer along with supporting documents such as invoice copy, mill test certificate, customs certificate, and any other relevant proof. (iv) Test report of the Flux density of the core. (v) Test report of the Overflux withstand capacity, including duration (in minutes) the transformer can sustain for in overflux conditions. (vi) Test report for Noise level of the transformer, as per standard norms. (vii) No-load current consumptionPercentage of the transformer. (viii) Burr level certificate indicating maximum burr level value in the transformer. (ix) Certification of purity of copper used in transformer winding. (n) All transformer test reports must clearly indicate that they pertain to the transformer itself, along with the acceptance parameters and the applicable Technical Authority or literature—such as IS 1180:2014 (Part I) and its subsequent amendments, IS/IEC 60076, CBIP Manual 317, NEMA standards, or any other recognized Government authorized body.

Material and labour for construction of plinth for transformer (to withstand load of 500 KVA transformer) of size 2.0mx2.0mx1.5m, using 100 mm thick PCC1:4:8 type D-2 as in lean concrete brick masonry in CM 1:6, the top of plinth shall consist of 100 mm thick PCC 1:2:4 type B-1(using 20 mm aggregate) over 75 mm thick PCC 1:4:8 type D-2 over compacted moorum filling, 10 mm thick rendering in CM1:4 on brick surface duly placed on two numbers of medium chanel of size MC 100mm on floor plinth across the length of plinth for equal distribution of transformer load including dismantling and removing debris of old UNSV plinth and depositing within upto 5 Km outside the defense land complete all as specified and as directed.

Supply and laying HT XLPE insulated screened PVC bedded galvanised steel strip or wire armoured, electric power cable (heavy duty) 22000 Volts grade (earthed) with aluminium conductor 3 core 95 sqmm ISI marked confirming to IS 7098 laid in trenches, duct, through pipe, under floor, on pole including jointing, testing and taking down old & UNSV cable any type and size complete all as specified and as directed. Note : Cost of provision of suitable double crimpped lugs and glands in LT Panel shall deemed to be included in quoted rates.

Supply, laying and testing of ISI marked XLPE insulated screened, PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) with multi strande aluminium conductor 1100 Volts grade cross sectional area 3.5 core x 240 Sq mm. and taking down old & UNSV cable any type and size complete all as specified and as directed. Note : Cost of provision of suitable double crimpped lugs and glands in LT Panel shall deemed to be included in quoted rates.

Supply, fix and testing of heat shrinkable end jointing kit for 22 KV (Earthed) grade cable for outdoor type termination jointing and complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cables of size 95 sqmm complete all as specified and as directed.

Supply, fix and testing of heat shrinkable end jointing kit for 22 KV (Earthed) grade cable for indoor type termination jointing and complete with jointing material and accessories suitable for 3 core XLPE armoured Al conductor cables of size 95 sqmm complete all as specified and as directed.

Supply, install, testing and commissioning of Indoor Type HT Vaccum Circuit Breaker including removal of elevtric connection from meter board 2/4 pole structure and shifting and transporting to MES yard within upto 2.5 Km as follows Type Indoor: Metal-Clad Switch gear( one incomming & 5 Outgoing) Voltage Rating : 22 kV Rated Current : 800 Amper or above Breaking Capacity : 25 kA or above Making Capacity : 50 kA peak (typical for 25 kA breaking) Rated Frequency : 50 Hz Short-Time Withstand : 26 kA for 3 seconds Dielectric Strength : Power Frequency: 28 kV / 50 kV (dry/wet) Impulse Withstand (BIL) : , 125 kVp (22 kV) No. of Poles : 3 Operating Mechanism : Spring Charged / Motor Operated Mechanism

Note for Ser. Item No. 7.00 above (a) The above job include the removal of electric connection from UNSVVCB and shifting it to MES Store yard within up to 2.5 Km all as directed by Engr-in-charge. (b)As the VCB is to be installed in an existing panel room with fixed dimensions, the OEM must provide a letter confirming that the offered VCB design and dimensions are suitable for the available space. The panel must allow safe operation, maintenance, and meet all clearance and ventilation requirements as per relevant standards. This confirmation must be submitted before sample approval. (c) Panel to include power pack with battery back up having input 230 V AC and Out put 24 V DCwith indication of charge on/switch off/overload/output on /battery operation etc- 01 Nos in each panel. (d) All cable entry points shall be sealed after installation to prevent entry of rats or other creatures and to ensure safety. (e) All required auxiliary contacts (NO/NC), MCBs (SP/SPN/TPN of any rating and quantity), and accessories necessary for the satisfactory and functional operation of the system shall be included in the scope of work. (f) Routine maintenance of the VCB shall be the responsibility of the contractor through the OEM for a minimum period of 2 years from the date of commissioning. (g) Each panel consist of 230 V AC spring Charging Motor , 24 V DC Closing Coil , 24 V DC Shunt Trip Coil, lamp Indicator for Breakers on/off, trip, spring charge/discharge/ health check etc On/Off Push Buttons (h) All internal wiring and connections of panel components such as CTs, PTs, relays, meter set etc shall be deemed to be included in the above work.

Note for Ser. Item No. 7.00 above Contd- (j) The rating given in of CT ratio, PT ratio DC Voltage of charging motor, power pack and control supply are indicative and may be revised by the Engineer-in-Charge during final make approval based on system requirements (k) The design and layout must be approved by Garrison Engineer before placing of order. (l) Expenses/cost of FAT and necessary travel/freight/conveyance/stay expense for inspecting/testing officers as nominated by accepting officer for FAT shall be included in the above quoted rate.

Taking down Old unserviceable panel any type and shape/size and supply, installation, testing and commissioning of new Outdoor type LT panel board cubical , CPRI approved and canopy type with double door, floor mounted CPRI approved with MS angle iron base frame made out of 40x40x6mm angle, with angle iron Stand made out of 50x50x6 mm thick having 4 Nos legs of 2 feet height of size as required at site, grouted in PCC 1:3:6 type C-1 using 20 mm graded mechanically crushed stone aggregates for fixing panel board with and including necessary fixing arrangements, totally enclosed dust and vermin proof, front opening with locking arrangement, suitable for AC 415V, 3 phase, 50 Hz system, Red, Yellow, Blue and Black coloured insulated copper bus bar of suitable size to carry 1200 amps four Nos vertical/Horizontal mounted of suitable length and internal wiring with of suitable size copper wiring duly painted internally and externally with two coats of synthetic enamel paint over a coat of red oxide primer of any tint and marking wiring circuits, complete all as specified and as directed duly comprising of the following :-

Supply, installation commisionning and testing of chemical earthing with GI electrode 3 m long consist of GI pipe outer dia 76 mm and GI pipe inner dia 32 mm . Inner space should be compacted with dry chemical compound for enhancing conductivity all including boring, installation, transportation, earth work and sufficient quantity of ground enhancing backfill compound testing of soil condition, PVC pit cover and GI strip 32x6mm upto 7.5 m long etc complete all as specified and directed by Engr-in-charge

Supply and fixing GI strip 32x6 mm for extention of earth and connected to equipment or panel complete all as specified and directed by Engr-in-Charge

Excavation in trenches n exc 1.5 wide and n exc 1.5 m in depth for foundation etc or for laying cable etc n exc 10 Sqm on plan and n exc 1.5 m in depth and getting out in soft/loose soil complete all as specified and as directed.

Returning filling in including spreading, leveling, watering and well ramming in layers not exc 25 cm complete all as specified and as directed.

Removal of excavated material/surplus soil to a distance n exc 50m and depositing where directed at a level not exc 50m above the starting point complete all as specified and as directed.

Supply and laying 150 mm outer dia, double walled corrugated (DWC) HDPE duct pipe conforming to IS- 14930 Pt-II with antirodent and non flame propogating properties of approved colour complete with fittings for cable protection complete all as specified and as directed.

Supply and lay pipe galvanized, “Light grade”, including fittings 100 mm dia for cable protection with clamps nut bolts to fixby clamp/ nuts - bolts etc. against existing MS channel of HT structure all as specified and as directed.

PARAMOUNT ELECTRICALS (BID ID -3448880)

UNIQUE ENGINEERS (BID ID -3452897)

Prasur Electricals & Engineering Co. (BID ID -3458254)

Star Electrical (BID ID -3453386)

United Sales Corporation (BID ID -3448800)

Vijaypower Generators Limited (BID ID -3453144)

Nexus Infratech (BID ID -3454630)

M/S JVS ENGINEERING (BID ID -3451950)

SBS Enterprises (BID ID -3453398)

M/S. Niksun Electro-Infra Private Limited (BID ID -3453096)