SITC of 58.5 KVA D.G set with AMF Panel and Manual By Pass System at Haringhata Mahavidyalaya, Haringhata, Nadi

Overload Capacity: 10% overload for 1 hour for every 12 hours of continuous running at full load or better. Engine Instrument Panel: Consisting of a starting switch with Key, Lube Oil Indicator, water temperature Indicator, RPM indicator and hour meter. Safety Controls: Emergency Stop, Low Lube Oil Pressure warning/Shutdown, High Engine Water Temp. Warning/ Shutdown, Sensor failure Indicator, Engine over speed indicator, Battery charging and low battery indicator, Exhaust Silencer: Residential Type, Starting system: 12 V, starting system complete with starter motor, charging alternator with rectifier and Cutout as per manufacturer standard. Battery: Lead Acid, Low Maintenance or SMF and conforming to relevant IS Specification with Low/High Battery Voltage and Weak Battery warning. Alternator:- Make: Stamford/ Leroy Some, Rating: 415 V., 3 Ph. 50 Hz., 58.5 KVA, 1500 rpm, Type: Brushless, self-excited and self-regulated, Insulation: Class H, Protection: screen-protected drip proof with Min.IP-23 degree of protection, RPM : 1500, Voltage Regulation (max) : ±1%, Winding connection : Star with Neutral, Total Distortion factor : Less than 3%, Total Harmonic distortion in output waveform : < 5% ,

Acoustic Enclosure: - The DG set should have an integrated acoustic enclosure at the manufacturing stage itself. High-quality acoustic enclosure must be certified as per CPCB-IV norms. Base Frame: - Common iron channel fabricated base frame containing the engine and alternator, mounted on AVM pads and having provision for lifting Hook. SITC of floor-mounted indoor type Cubicle, LT, Microprocessor-Based AMF Panel with display features for Engine and Alternator Parameters, fabricated by a CPRI-approved panel builder, having a compartmentalised design with the following minimum specifications: • Atmospheric Condition: Ambient Temp: 45°C, Seismic Zone 4, Maximum RH :98%, • System: 415 Volt, 50 Hz, 3 Phase, 4 Wire, • Breaking Capacity: 25/35 KA, • Insulation Level: 2.5 kV AC • Framework: MS angle iron support having 50 mm x 50 mm x 5 mm, supports for MCCBs, along with horizontal/vertical intermediate MS flat members for stiffening, mounting on ISMC 100 MS channel for floor mounting of LT panel. Suitably sized lifting hooks should be provided at the top. • Enclosure: 2.5 mm nominal thickness CRCA sheet steel for all load-bearing members and 2.0 mm nominal thickness CRCA sheet steel for all non-load-bearing members • Ingress Protection: IP-43 with dust, damp and vermin-proof, good-quality neoprene rubber gaskets • Panel Door: front and back openable, hinged, single-shuttered, single door, with locking arrangement

• Gland plates: At the bottom with 3 mm nominal thickness for multicore cable and single core cable. • Cable Alley: should not consider a multilayered cable run and should be spacious to ensure easy and speedy disconnection & reconnection of cables during MTC. • Cable Termination: Rear Side • Earth Bar: Continuous Tinned Copper Earth bus of size 40 x 6 mm to be provided at a height of 150 mm from the bottom and brought outside of the panel of 75 mm. • Control Wiring: by FRLSH Grade PVC insulated flexible wire with 2.5 Sq.mm. multistrand copper conductor terminated by copper sockets. • Auxiliary Supply: 12 V DC power supply, if required for the communication part, with a separate DC MCB. Make List: MCCB/Contactor/Change Over – ABB / Schneider / Legrand / Siemens, Control Wire: Finolex/ Havells/ RR Kabel, CT & PT – Kappa, Auxiliary Power supply, Control MCB, Push Button & Indication Lamp and TNC/ Selector Switch as per Make of MCCB (A) INCOMER for Mains and DG: 415 V, 50 kA, 125 A, 4 P microprocessor-based protection released MCCB - 2 Nos., (B) Current Transformer 125/5 A, (C) 415 V, 125 A, 4 P Power Contactor - 2 Nos., (D) 415 V, 125 A, 4 P, Changeover Switch for bypass arrangements - 1 No.

(F) BUSBAR CHAMBER: S & F 200 Amp capacity 99.9% - 99.5% electrolytic tinned copper 4 bar bus bar [size of flat 4 x 25 mm x 6 mm] mounted on non-hygroscopic porcelain insulator / hylumm sheet having sufficient di-electric strength duly wrapped with colour PVC tapes (Red, yellow, blue & black) for phases & neutral identification & all connection made with required size cu bars - 1set. Specification of MCCB - Electronic Sg (LSIg) protection unit, Ics=100% Icu, Three Optimum Frames, Protection against Overloads: - lr adjustable from 0.4 to 1 x ln, - tr adjustable from 3 to 30s, Protection against Short Circuits: - lsd adjustable from 1.5 to 10 x lr, - tsd adjustable from 0 to 0.5s, Inbuilt Instantaneous Protection, Protection against Ground Fault: - lg adjustable from 0.2 to 1 In & OFF - tg adjustable from 0.1 to 1s, Inbuilt Display for Current Metering with high accuracy of class 1, Internal Battery with battery measure function, Logical Selectivity Ready (Zone Selective Interlocking), Dynamic Selectivity as per Selectivity Charts, • Inbuilt USB Port for Software Diagnosis, Switchable Thermal Memory, Suitable for Isolation.

(G) METERING and Others: (a) Indicating Lamp: (Mains ON, Set Running, Load on Mains, Load on DG, Battery Charger ON) - 5 Sets. (b) Battery Charger complete with AVR, booster selector switch, ON-OFF Switch, Voltmeter, Ammeter, etc. for charging from mains, including necessary connection by S&laying of necessary cables. This would be ina addition to the charging alternator fitted in the engine (c) Audio Visual Alarm for 'Low LUB Oil Pressure', 'High Water Temperature', ' DG Failure' and 'DG Overload' (d) Mode Selector Switch - Auto/ Man/ Test Mode . (e) Microprocessor-based relay with composite meter for digital display of the following. (i) Generator voltage/AC Mains voltage, (ii) Generator Current in all phases, (iii) Frequency, (iv) Power Factor, (v) Energy, (vi) Indication for alternator supply, vii)Running time indications number of hours of operation and service intervals, service due indications The AMF panel must be designed to ensure trouble free performance and ensure switching over Electrical Load to DG within 15 (fifteen) second from the instant of mains failure. The necessary drawings of DG SET, AMF panel should be approved before commissioning the work and a final copy should shoulde submitted.

Supply & fixing of exhaust gas piping of 102 mm dia MS black class B pipe welded incl. all necessary bend supports and clamps anti vibration mounting insulation of exhaust system with 50 mm thick mineral wool covered with wire mesh and aluminium cladding for 58.5 KVA DG set as per direction of EIC.

S&F special type MS angle iron support structure made of MS angle with flat iron clamp with nuts, bolts & washers etc. for 102 mm. dia exhaust pipe.

S&F rain protection canopy for 102 mm exhaust pipe

Hire charges for scaffolding by bamboo required rope of square type arrangement for smooth working & carriage of MS black pipe by vertical run & dismantling at the end of work.