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| 1 | Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 160 KVA capacity, Double Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class \"A\" insulation, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], Level-3 with latest amendment including dismantling of old transformer of any type and capacity with connected accessories including shifting the same to MES store yard of AGE E/M complete all as specified and as directed and comprising of the following Specification and Fittings:-Continuous Rating : 160 KVANo-Load Voltage Ratio: 11 KV / 433 V Tapping on HV[%] : ± 7.5, ± 5, ± 2.5Phase & Frequency : 3 Phase & 50 HzConnection: Delta StarVector Group: DYN 11Cooling : ONANType : Outdoor with HV/LV cable Box |
| 2 | Fittings:[a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device.[b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug[c] Undercarriage with four plain rollers[d] Oil filling hole cum air release plug[e] Drain Valve cum Sampling Valve[f] Top Filter Valve with Plug[g] Rating Plate with Diagram Plate[h] Lifting lugs for Transformer[j] Lifting lugs for Core[k] Earthing Terminals[l] Thermometer Pockets[m] Silica Gel Breather[n] Explosion Vent[o] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts[p] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts[q] Marshalling Box with Double Window |
| 3 | Terminal Arrangement:[i] HV and LV Side: Cable Box[ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side.[iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil.[iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector.[v] All necessary arrangements with devices for measuring the temperature of core winding and oil shall be done by contractor deemed to be included in the quoted rate[vi] Platform for placement ofTransformer shall be as per the manufacturer\"s instructions complete all as specified and as directed. The cost of platform is deemed to be included in the quoted rate. [vii] The drawings of the transformer should be approved by the accepting officer before placing order.[viii] The factory acceptance test to be done by the rep of Accepting officer prior to dispatch. |
| 4 | Supplying, Installing, Connecting, Commissioning and Testing of Isolation Transformer, 160 KVA capacity, Three Phase, 50 Hz, indoor, Copper Wound, Oil immersed, Class of insulation A, metallic body duly powder coated designed for input Voltage range 415+5% and output voltage range 415+5%, ratio 1:1, Vector Group: Dyn 11, Delta-star with first filling of transformer oil of requisite dielectric strength upto level, efficiency more than 95% seperate neutral bushing shall be brought out for earthing Potential difference between neutral to earth less than One volt with all standard fittings like digital temperature meter, adequate number of cooling radiators, lifting hooks one set, earthing terminal two Nos including dismantling of old transformer of any type and capacity with connected accessories including shifting the same to MES store yard of AGE by the Engineer-in-Charge. [Testing shall be as per BIS 9815 and 2026] |
| 5 | Supply, Install, Testing and commissioning of Silent Diesel Engine driven Generating Set of Capacity 160 KVA / 128 KW, 415 Volts, Three Phase, 4 Wire, Engine as per IS – 10001 / 10002 and Alternator as per IS – 13364, conforming to latest CPCB - 04 Plus approved norms complete with relay panel for automatic starting on main failure, control panel having meters, sound proof canopy as per relevant IS and foundation etc. with and including following:- |
| 6 | (A) ENGINE: Direct Injection, Turbo charged Water Cooled Engine, 6 Cylinder, in-line, 4 Stroke developing suitable BHP but not less than 155 HP [Gross Engine POwer] rated at 1500 RPM complete with provision of 10% over load for one hour conforming to BS – 5514 and comprising with following specifications:[i] In- line fuel pump with Electronic Governor.[ii] Stainless Steel Exhaust Flexible Coupling and Exhaust Pipe duly insulated with Glass Fire Wool and Plain GI Sheet Cladding & extended outside the building.[iii] Silencer[iv] Radiator[v] Coolant Inhibitor[vi] Plate type Lub Oil Cooler[vii] Spin-On-Filters-Coolant, Fuel, Fuel & Lub Oil[viii] Dry type, Heavy Duty, Replaceable Paper Element Air Cleaner with Restriction Indicator[ix] Flywheel Housing and Flywheel to suit Single Bearing Alternator[x] Electrical Starter Motor[xi] Battery Charging Alternator[xii] 2x12 Volts Batteries, 180 AH Capacity or higher as recommended by OEM[xiii] First fill of Lub Oil.[xiv] Low exhaust emissio meets the CPCB IV Plus norms. |
| 7 | (B) ALTERNATOR:[i]Self Excited & Self Regulated[ii] Voltage Regulation ± 1 %[iii] Class H Insulation[iv] 4 Pole rotating field[v] Digital Automatic Voltage Regulator [vi] Standard Enclosure IP-23[vii] Telephone Interference Factor: 50[viii] Total Harmonic Factor: Better than 2%[ix] Supplying power to variable electrical load for unlimited hours. Prime Power [PRP] is in accordance with ISO 8528. 10% over load capacity for one hour every 12 Hours of operation and will be suitable for tropical condition.[x] Unbalanced load capacity is 25% of rated power. |
| 8 | (C) ENGINE CONTROL WITH AMF PANEL: Standard Control Panel along with DG Set, Cubicle with CRCA Sheet of 2 mm thick and angle iron structure including following accessories:[i] MCCB, 4 Pole, 415 V, 250A, adjustable type, 36 KA for 160 KVA incomer – 1 No[ii] MCCB, 4 Pole, 415 V, 250A, adjustable type, 36 KA for EB incomer – 1 No[iii] Power Contactor, 4 Pole, 255 Amps capacity for EB & DG feeder – 2 Nos [iv] Tape wound current transformer 250/5A, CL 1, 5VA for metering - 03 Nos[v] Mains line voltage monitoring relay - 01 No[vi] SMPS based battery charger 230V, AC, 24V DC, 10 Amp - 1 No[vii] Single Pole control MCB 6A, 10 KA - 08 Nos[viii] Phase Indicating Lamp EB R, Y, B - 03 Nos[ix] Phase Indicating Lamp DG EB R, Y, B - 03 Nos[x] Load ON EB indication lamp - 01 No[xi] Load ON DG indication lamp - 01 No[xii] Digital DC Volt / Amps meter - 01 No[xiii] Digital Multifunction meter CL:1 - 01 No[xiv] Digital Kilowatt Hour meter CL:1 - 01 No[xv] LED Frequency meter, 50 Hz,CL:0.2 - 01 No |
| 9 | [xvi] Auxillary contactor 230V AC - 01 No[xvii] On delay timer 230V AC - 01 No[xviii] Auto / Manual selector switch - 01 No[xix] DC supply ON/OFF selector switch - 01 No[xx] Engine Start / Stop button - 01 No[xxi] Manual ON EB/DG stable button - 01 No[xxii] DC 4 window annunciator 24V - 01 No[xxiii] DC Hooter 24V - 01 No[xxiv] Thermostat and space heater - 01 set[xxv] Power and control wiring - 01 Set[xxvi] Control Terminal Blocks - 01 set[xxvii] PVC Sleeve insulated Tinned Aluminium bus Bar suitable for 400 Amps current carrying capacity [TPN] - 01 set(D) FUEL TANK: In-Built Fuel Tank of suitable capacity but not less than 200 Litres capacity with all fittings and accessories. |
| 10 | (E) ACOUSTIC ENCLOSURE:[i] Designed to meet stringent MOEF / CPCB norms 75 dBA @ 1 m at 75% load under free field conditions. [ii] Air Inlet Louvers shall be designed to operate at rated load even at 50°C Air Inlet Temperature.[iii] Cubicle shall be powder coated for long lasting service life and super finish with UV Resistant Powder Coating and shall withstand extreme environment. Stain Steel hardware shall be used. [iv] Insulation Material shall meet / conform to IS – 8183 Specifications for better sound attenuation[v] Provision of Genset Controller for Engine & Alternator.(F) ACCESSORIES:[i] Periodical Maintenance Tools as per Manufacturer\"s recommendations[ii] Operational, Spare Parts, & Installation Guidelinesand Catalogue. |
| 11 | Notes:Rate quoted is also deemed to be including for the following:[i] Provision of 200mm thick PCC 1:1½:3, Type A1, using 20mm graded stone aggregate foundation over 200mm thick PCC 1:4:8, Type D-2, using 40mm graded stone aggregate over 200mm thick Hardcore of gauge not exceeding 63mm of broken stones or boulders, deposited, spread and levelled in layers not exceeding 15 cm thick with Anti-Vibration Mounting Pads complete as per manufacturer’s guidelines including necessary earthwork excavation, return filling, removal of surplus soil and applying two coats of Cement based paint over a coat of Alkali Resistant Primer complete etc. complete all as directed.[ii] Testing of DG Set shall be carried out in presence of IEM or rep of Accepting Officer.[iii] Artificial load i.e. strip heaters of suitable capacity to be made available during test. [iv] Extended terminals with tinned copper has to be provided for terminating the incoming & out going cable with suitable lugs for ACB’s / MCCB\"s if required.[v] U/G cable shall be laid / connected to DG Set Cubicle Panel to AMF Control Panel [Changeover Panel] all as specified.[vi] Provision of cable gland & Aluminium lugs of suitable size for terminating the cable at both ends. |
| 12 | [vii] DG Set shall be covered with Galvalume Sheet Roofing / Canopy of minimum size 6.0m X 3.0m X 3.50m with pre-painted Galvalume steel sheets of Trapezoidal profile having pitch 190mm, depth 29mm and thickness 0.50mm [Galvalume base-PPGL trapezoidal profile sheets], having tensile strength of 550 Mpa, fixed with aluminium self tapping screws, neoprene and EPDM washers of suitable size and using Mild Steel Tubular Trusses, Posts, Frame work etc. including special shaped washer etc. complete using ERW or induction butt welded tubes confirming to IS - 1161, Grade YST - 240, Medium Grade of approved sections complete all as directed and the rate quoted shall be deemed to be included for the same.[viii] Exhaust Pipe shall be insulated with 25mm thick Resin Bonded Fibre Glass Wool of density 32 kg/Cu.m and wrapped with 24 SWG Aluminium sheet duly painted with approved colour & quality complete as per ISO 8528 and 3046 / BS 5514 Specification and IS – 4722 and IS – 1460 complete all as specified.[ix] Disconnecting of electrical connection and taking out the existing DG set alongwith AMF panel and connected items and depositing the same to MES store yard as directed by the Engineer-in-Charge. |
| 13 | Supplying, laying and testing HT UG cable, XLPE insulated, screened insulated, steel strip armoured and pressure extruded PVC bedded, 11000 Volts grade [heavy duty] with aluminium conductor of size 3 Core 120 Sqmm laid in trenches, fixed to walls or passing through pipes and connecting up complete all as specified and as directed. |
| 14 | Supplying, laying and testing LT XLPE insulated and PVC sheathed, armoured heavy duty underground cable, ISI marked with aluminium stranded conductor 1100 Volt grade of size 3½ Core, 185 Sqmm cross section, laying in trenches / duct / fixed to poles / drawn through pipes / sleeving through pipe in duct, including suitable size Double compression copper stainless steel cable gland, crimping type cable lugs, sockets etc. including disconnecting of old cable complete all as specified and as directed. |
| 15 | S & F in repairs Cable Jointing Kit for 11 KV [Earthed] Grade cable for Outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sqmm, complete all as specified and as directed. |
| 16 | S & F in repairs Cable Jointing Kit for 11 KV [Earthed] Grade cable for straight through joint heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sqmm, complete all as specified and as directed. |
| 17 | S & F in repairs heat shrinkable end joint for LT UG cable complete with jointing kits for making suitable joints suitable for aluminium conductor cable of size 3.5 core XLPE armoured aluminium conductor cable complete all as specified and as directed. |
| 18 | M & L for disconnecting existing electrical connections of defective / burnt out UG HT cable of any size 3 core from VCB, RMU and transformer including necessary excavation and taking out the required length of existing cable from loop, cutting the defective portion of old cable termination at end and refilling the cable trench with existing sand and bricks complete all as directed by the Engineer-in-Charge |
| 19 | Supply, install, connect, test and commissioning of weather proof LT Feeder pillar box, cubical type, factory made powder coated, outdoor type pedastal type dust and vermin proof, totally enclosed with front and rear opening hinged doors with canopy sloped top projected and raised platform of suitable size, fabricated with CRCA sheet 3.15mm thick with frame made of angle iron 25x25x6mm thick and legs made of 40x40x6mm, with locking arrangement with aluminium bus bar chamber of 3 Phase 4 wire LT, AC, 50 Hz, 433 volts, 400 Amps capacity RYBN insulated with sleeved insulation complete with multifunctional meter LED type by showing AMps, Volts, frequency, etc along with suitable size of CT on outgoing, indicating lamp RYB, complete internal wiring with suitable size of PVC insulated copper conductor cable, including cable glands and lugs for incoming and out going cables as per required sizes, PCC platform made out of PCC 1:2:4, type B-1 and pedestal of 30cm height from GL with suitable nut, bolts, washers suitable for and including acommodating the following components including dismantling olf panel board complete all as specified and directed:-[a]MCCB, 4P, 250A, 36 KA, Thermal magnetic adjustable- 01 No (incoming)[b]MCCB, 3P, 160A, 16 KA, Thermal magnetic adjustable - 02 Nos [c]400 Amps rated Aluminium bus bar TPN duly insulated with coloured PVC sleeve as per standard colour code and rigidly mounted on bakelite/DMC insulator bus bar support (Square/round) insulators of suitable size and good insulation resistance[d]Multifunction meter (KWH, Volt, Amp, PF, KVA, KVAR and maximum demand KW) - 01 No[e]On load change over switch 415 Volts, 4 Pole, 400 Amps capacity - 01 No[f] LED indication lamp RYB - 03 NosNote: All terminations of existing cable should be provided with copper lugs / thimbles and suitable size of glands. |
| 20 | Earthing complete with Galvanised Steel Earth Plate Electrode 600 X 600 X 6 mm thick burried directly in ground [earth pit not less than 2.25 m deep below ground level] with top edge of Plate not less than 1.50 m below normal ground level connected to galvanised earth strip 25x4mm [Earth Lead] and GI pipe 40 mm dia light Grade for earthing lead protection to the extent of maximum 7.5m, earth plate electrode surrounded by 150mm thick packed layers of charcoal and common salt filled in alternate layers, connected to the plate by means of GI bolts & nuts complete all as per Electrical plate No. 3 of SSR Part – I, connected to earthing test point including testing on completion including PCC [1:2:4, Type B1] Pit with RCC 1:2:4, Type B1 Cover 50 mm thick with 6 Nos, 8 mm dia TMT bars in both ways, MS frame made with 40 X 40 X 6 mm angle iron, MS funnel with 20 mm bore medium grade GI Watering pipe, wire mesh, earth work excavation, returning filling, removal of surplus soil etc. including removing old unserviceable earthing set complete all as specified and as directed. |
| 21 | M & L for Cutting existing bituminous road / Hardstanding. etc as required at site for laying / jointing cables not exc 600mm in depth and and not exc 450mm in width and refilling the excavted portion including making good the top 100mm thick with PCC 1:2:4, type B-1 using 20mm graded stone aggregate finished even and smooth without using extra cement and removing the surplus materials to a distance not exc 50m complete all as directed by the Engineer-in-Charge. |
| 22 | Excavation in trenches not exceeding 1.5m wide and not exceeding 10 Sq.m on plan area and not exceeding 1.5m deep in any type of soil complete all as specified and as directed. |
| 23 | Removing excavated material /soil to a distance not exceeding 50m and depositing where directed at a level not exc 1.5m above the starting point complete all as specified and directed |
| 24 | M&L for Sand filling in trenches using dry river sand as cushioning to under ground cable including spreading, levelling and consolidation complete all as specified and directed.[Note: Punned thickness of sand shall only be measured.] |
| 25 | Returning filling in, including spreading, levelling,watering and well ramming in layers not exc 25cm thickness as in soil complete all as specified and directed. |
| 26 | Supply and laying unreinforced precast concrete cable covers of class HV, type-1, flat of size 300x180x40mm laid in trenches along alignment of cable for protection complete all as directed |
| 27 | M & L for laying 80mm dia GI pipe light grade laid for cable protection at road crossings or fixed on walls / poles secured with clamps complete all as directed |
| 28 | S & F in repairs GI strip of size 32x6mm with saddles and fixing screws etc. for roof conductors and down conductors laid in trench/ floor including necessary clamps, nuts, bolts, and hylem sheet block complete all as directed |
