REPLACEMENT OF BER DG SET TRANSFORMER AND OTHER EM ASSETS AT 7 AFH

Excavation in trenches not exc 1.5 mtr width and not exce 1.5 mtr in depth in soft/loose soil and getting complete all as specified and as directed.

Removal of excavated material to a disance n.exc 50 mtr and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and as directed.

Returning, filling in including spreading levelling watering and well ramming in layers n.exc 25 thick for soft/loose soil complete all as specified and as directed.

M&L for sand cushioning /sand covering for underground cable protection and consolidated and compacted with clean dry sand complete all as specified and as directed.

M&L bricks with sub class 'B' locally available laid in trenches above sand cushioning for cable protection complete all as specified and as directed.

M&L for XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cable 1100 Volts grade with stranded aluminium conductor cable, laid in trench or fixed to wall / passing through pipe/ pole complete of size 185 Sqmm 3.5 Core complete all as specified and directed.

M&L for XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured electric power cable 1100 Volts grade with stranded aluminium conductor cable, laid in trench or fixed to wall / passing through pipe/ pole complete of size 240 Sqmm 3.5 Core complete all as specified and directed.

Supply, install , testing, commissioning of 'Silent type' diesel generating set alongwith having prime power rating of 415 Volts at 1500 RPM , 0.8, 125 KVA lagging power factor at 415 volts suitable for 50 hz 3 phase system and for 0.85 load factor , CPCB-IV plus complied, acoustic enclosure, engine is designed to meet stringent exhaust emission tests as per revised MoEF norms, anti vibration mountings, control panel and foundation. The DG set should be robust in construction factory tested and assembled to ensure perfect alignement of engine and Alternator on a common base frame. The DG set shall be designed and suitable to operate as per tropical condition of Chakeri, kanpura and for more details on service condition refer particular specification. The DG set shall be Eco-friendly product complying with CPCB noise and emission norms (noise and emission values lower than CPCB limits) and complying with latest emmission standards issued vide gazatte notification G.S.R. 804(E) by MoEF The DG set shall be comprising of following item as under:-

(a) Diesel Engine : The diesel engine shall be of four stroke cycle multi-cylinder, direct injection radiator water cooled, turbo charged with after cooler, compression ratio 16.8:1, Air to air after cooling and optimised turbo charger for increased altitude capabilities developing required 103.4 BHP @ 1500 rpm ( MoEF Certified Power) under NTP condition of BS 5514/ISO 3046 with an over load capacity of 110% for one hour in any specified 12 hrs of continuous operation, suitable for generating set application on AMF mode. The engine shall confirm to IS: 10000/BS:649?BS 5514/ISO 3046. The engine shall have the following accessories: (i) Cooling fan and radiator. (ii) DM water cooling systems with pre-mix anti-corrosive additive(iii) Turbocharger (iv) Fly wheel with fly wheel housing. (v) Electrical engine starter motor (disengagement after start-up) with batteries. (vi) Battery charging systems. (vii) Industrial/Residential silencer and exhaust pipes having suitable height with supporting structure. (viii) Stainless steel exhust flexible elbow. (ix) Thermal sealing of exhaust pipe and aluminium cladding for complete exhaust pipe and silencer. (x) Required filters for fuel, lube oil, air etc. (xi) Sets of flexible hoses as required. (xii) Suitable rubber coupling to Alternator with guard. (xiii) Suitable Engine controller for protection of the engine. (xiv) Coolant heater. (xv) Oil drain Pump. (xvi) Heavy duty air cleaner. (xvii) Venturi combo Spin On Oil Filter (xix) Electrical starter motor with soft start engagement feature (xx) Plate type lube oil cooler with first fill of lube oil and coolant.

(b) Engine protections: (i) High coolant temperature warning & trip(ii) Low lubricating oil pressure warning & trip (iii) Low coolant level warning & trip (iv) Fail to crank trip (v) Over crank trip (vi) High and low speed trip (vii) Low or Hgh battery voltage alarms. (viii) Clogged filter warning (ix) Lack of fuel (x) High Canopy Temperature (xi) Set fail to start protection after failure of the set to start after successful three consecutive start attempts. (c) Starting system : The engine starting shall be by means of totally enclosed axial type electric starter suitable for 12 volts DC starting system comprising of starter motor, voltage regulator and arrangement for initial exciation complete 12 volt batteries or with suitable number of batteries 925 plstes, 180 AH Sealed Maintenance Free (SMF) Lead-Acid type)as required as per specifications. The battery shall be supplied with a suitable floor mounted MS stand treated with seven tank treatment, two coats of red oxide/primer & acid resistant paint with wooden base, adaptor box etc. with copper conductor battery leads of required length and socket/clamps (d) Engine mounted Instrumentation Panel fitted with and having digital display for the following: (i) Start stop switch key (ii) water temperatre indication (iii) Lubrication oil pressure indication (iv) Lubrication oil temperature indication (v) Battery charging indication and RPM indication (vi) Over speed indication and Engine hours indication (vii) Low lube oil temp indication.