Est. No. SR/MESD/MS/8345/ 2025-26

Supply, Installation, Testing & Commissioning of 750 kVA D.G.SET WITH PANEL -750KVA. DG Set shall be comprise of Following :a) Engine: - The Engine of D.G. set as per (CPCB IV+) comprises of Efficient CRDI system, (Common rail direct Injection system). CRDI is fuel injection system that improves engine performance, efficiency and emissions. It engine shall be as per O2E series (Optimal operating efficiency) i.e. Low emission, high efficiency engines, compact, Robust and rugged design. The lube oil change period should be of 500 hours. It shall be comprises of integral set of radiator system, designed and tested for 50 C ambient temperature. As per CPCB IV + norms the CRDI system shall be enhance the filtration efficiency and provide better performance, lower noise and reduced emissions.A1) Exhaust Gas Treatment system :- The Exhaust Gas Treatment System shall be comprises of DOC& (Diesel Oxidation Catalyst) SCR ( Selective Catalytic Reduction) System to sets of the reaction of emission as per latest CPCB+IV norms. A2) Controller :- The Controller shall be of Microprocessor based, having Graphical LCD display and best in class monitoring and diagnostic capability. It should be integrable with AMF , synchronization & communication compatible.A3) DEF Tank :-(Diesel exhaust fuel ) For DEF tank the aqueous urea shall be used to sets off the chemical reaction with exhaust gas. The tank size shall be optimized in accordance to DEF consumption.a) Alternator:- The alternator shall be rated capacity at 0.8 power factor, 415 volts, 3 phase, 4 wire, 50 cycles/sec, 1500 rpm, self excited and self regulated, with brush less excitation. Band of voltage regulation shall be + 2.5% of rated voltage from no load to full load. Insulation class shall be “H”. The alternator shall be conforming to BS:5000/IS 4722 and shall be designed to withstand tropical conditions. Required output shall be under NTP conditions.b) Base Frame & Mounting Arrangement:- The engine & the alternator shall be directly coupled to each other by means of couplings in order to to form very compact arrangement. Cooling system & both these units shall be mounted on a rigid fabricated M.S. common base frame. The base frame of the diesel generating set shall be sturdy and fabricated/ welded construction out of M.S. channel iron base of suitable size for mounting the above engine & alternator. The base frame shall be suitably designed to simplify transportation, handling, slinging, E&C. This base frame shall be painted with anti corrosive epoxy paint. Noise level shall not exceed 75 dB as per CPCB norms of noise. A set of anti vibration pads shall be provided between base frame and engine alternator.c) Battery:- Suitable Dry type Batteries of Standard Make with leads and Terminals shall be part of the equipment. The pack shall be suitably positioned and modular withdraw able to ease of servicing. The Battery pack shall be minimum 180 AH d) Fuel Tank:- Fuel Tank should be located nearest to the DG set enclosure to ensure free flow of diesel. Suitable capacity of the fuel tank to run the set for about 12 hours with mounting bracket, level indicator, fuel inlet, fuel outlet, air vent, drain plug, inlet arrangement for direct filling and set of hoses for inlet & return.e) Exhaust Piping:- The exhaust piping shall be of suitable size and dimensions as per manufacturer’s recommendations. The residential silencer shall be provided to to maintain the noise level as specified. The exhaust piping shall be insulated with heat resistive material like asbestos, glass wool etc. and clamped/supported, mounted on wall/ floor by suitable size clamping arrangement. Outlet of exhaust shall be taken out from the structure as per site conditions and covered to protect from atmosphere effects like rain etc. shall be made good by plastering after completion of work. The material of piping shall be of approved make and quality (for indoor installations).f) Acoustic Enclosure: The enclosure shall be CPCB type approved soundproof enclosure. The enclosure shall be modular construction with hinge bolted structure to provide easy dismantling and reassembling. The DG set with enclosure shall undergo strict quality checks and testing to achieve high-end performance so that the offered DG set with enclosure enables reduction of sound and thus as per latest CPCB norms of noise at 1 mtr. distance under free condition should be 75 dB.

Panel requirement The LV switchboard shall be type tested assemblies, all type tests as defined in latest IEC 61439-1&2. Also it should comply IEC 61641 Internal arc withstand for 65kA for 0.3 Sec. LT panels must be built up from compartment housing, circuit breakers, control-gear, relays, busbars, controls and other items of equipment as per BOQ. Low Voltage switchgear & control gear must comply IEC 60 947 /IS 13947.The Short circuit current with minimum duration of 1sec. for LV switchgear panels shall be as indicated in SLD.The LV Main Switchboard shall be identical in mechanical construction to the LV Switchboard which had been type-tested by an acceptable, multi-fold design with impact test IK07-IK10.The design temperature for the equipment provided in the main low voltage switchboards shall be +50°C. the switchboard shall be of form 4b, for form of separation only metallic compartmentalization shall be used, Hylem / PVC sheets shall not be allowed.Switchboard panels and cubicles shall be fabricated with CRCA Sheet Steel of thickness not less than 2.0 mm. Busbars shall be made of high conductivity, and high strength Aluminum E91 grade Busbars shall be of rectangular cross sections , not more than 6mm thickness better suitable for full load current for phase bus bars and half/ full rated current for neutral bus bar or as stipulated in schedule of quantities. Busbar shall be suitable to withstand the stresses of fault level as specified in schedule of quantities.The material and the spacing of the Busbar supports should be same as per the type tested assembly. Busbar shall be tin plated with silver contacts.The cables and control wires shall be suitable for withstanding 105 deg C. Paint shall be RAL 7032 powder coated or as per the directives of engineer in charge. The APFC /RTPFC panels must be designed, tested & manufactured as per IEC61439- 1 & 2 & IEC 61921 refrence standard.DG SYNCHRONIZING PANEL-1 (FORM4, TYPE6) I/C 1600A, 4P, 50kA, EDO, LSIG ACB - 3 No I/C 2000A, 4P, 50kA, EDO, LSIG ACB - 1 No 9000A 4P AL BUSBAR. BUSBAR SHALL BE TIN PLATED WITH SILVER CONTACTS.O/G 800A, O/G 2000A, 4P, 50kA, EDO, LSIG ACB - 3 No O/G 1600A, 4P, 50kA, EDO, LSIG ACB - 1 No O/G 100A, 4P, 25kA, MP MCCB - 1 No All incomer shall have SPD Class 1+2 with 100A 4P MCCB , RYB phase indicator lamp with MCB, on / off / trip indicator lamp, Digital voltmeter, Digital Ammeter, Digital MFM compatible for BMS control, CT for metering, CT for Sync Relay, control wiring, Under Voltage relay, Phase Sequence relay, Negative Phase protection Relay, reverse power relay, Over & under frequency relay, MP BASED GENERATOR CONTROL / SYNC RELAY, DC Voltmeter, DC Ammeter, AC power contractor, ON indicator lamp, Off indicator lamp, Push button, TNC switch, AM Switch, Digital Hooter, Annunciation window, Generator Master trip relay, Line voltage minitor, Battery changer. All outgoing shall have on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring. All incomer and outgoing shall be with automatic change over scheme, electrical & mechanical interlocking, auto/Manual on & off of DG Sets, breakers etc. Synchronizing Relay like Woodward/Dief/Deepsea/PCCM or equivalent shall be provided for each DG set. Selection of Master DG Sets, operation(Opening/closing) of breakers as required and complete with interfacing with DG Set Controller 8 Channel temperature scanner for monitoring bearing and winding temperature, 16 window facia annunciator, Auto - manual selector switch for individual breaker & PLC.

Supplying, installation, testing & commisioning of air circuit breaker of 2000A, 500V, 4 pole with inbuilt ZSI module with standard accessories enclosed in a IP-43 MS enclosure and iron frame as isolators.The Air circuit breakers (ACB) shall comply with standards IS/IEC 60947-(1 & 2) & IS/IEC 60664-1 & shall have ICS=ICU=ICW for 1 Sec. ACB shall not derate up to 50’C & shall have break time <30ms & shall have 100% rated neutral pole.The provided ACB shall suitable for terminating aluminum bus bars and shall have ROHS & WEEE Certifications

Supplying, installation, testing & commisioning of 400A FP 16KA MP TM MCCB in IP-43 MS enclosure with RYB phase indicator lamp with MCB including iron frame for mounting of MCCB enclosure. MCCbs shall comply with standards IS/IEC 60947-1 & 2. and shall have to provide electric fault trip indication on panel and with thermal magnetic trip unit (with Adjustable Thermal - 0.7 - 1 Ir and Fixed Magnetic). It shall be current limiting type and shall have an encapsulated double break roto design having two fixed contacts, two moving contacts and two arc chutes per pole with Continuous rated Shunt trip coils & common & snap fit accessaries and should be ROHS & WEEE compliant

Supplying, installation, testing & commisioning of 250A FP 16KA MP TM MCCB in IP-43 MS enclosure with RYB phase indicator lamp with MCB including iron frame for mounting of MCCB enclosure. MCCbs shall comply with standards IS/IEC 60947-1 & 2. and shall have to provide electric fault trip indication on panel and with thermal magnetic trip unit (with Adjustable Thermal - 0.7 - 1 Ir and Fixed Magnetic). It shall be current limiting type and shall have an encapsulated double break roto design having two fixed contacts, two moving contacts and two arc chutes per pole with Continuous rated Shunt trip coils & common & snap fit accessaries and should be ROHS & WEEE compliant

Supplying, installation, testing & commisioning of 100A FP 16KA MP TM MCCB in IP-43 MS enclosure with RYB phase indicator lamp with MCB including iron frame for mounting of MCCB enclosure. MCCbs shall comply with standards IS/IEC 60947-1 & 2. and shall have to provide electric fault trip indication on panel and with thermal magnetic trip unit (with Adjustable Thermal - 0.7 - 1 Ir and Fixed Magnetic). It shall be current limiting type and shall have an encapsulated double break roto design having two fixed contacts, two moving contacts and two arc chutes per pole with Continuous rated Shunt trip coils & common & snap fit accessaries and should be ROHS & WEEE compliant

Supply, Installation, Testing & Commissioning of METER-2 PANEL (FORM4, TYPE6) each with I/C 2000A, 4P, 50kA, EDO, LSIG ACB - 2 No with Electrical & Mechanical Interlocking 2500A 4P AL BUSBAR. BUSBAR SHALL BE TIN PLATED WITH SILVER CONTACTS. O/G 1000A, FP, 4P, 36kA, EDO, LSIG ACB - 2 No O/G 400A, FP, MP, 36kA. MCCB - 5 No O/G 200A, FP, MP, 36kA. MCCB - 2 No O/G 100A, FP, MP, 36kA. MCCB - 3 No All incomer shall have SPD Class 1+2 with 100A 4P MCCB , RYB phase indicator lamp with MCB, on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring, CT for APFC panel, CT for DG Sync panel. All outgoing shall have on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring. (Refer Schedule B in DTP for Detailed Item Description)

Supply, Installation, Testing & Commissioning of METER-3 PANEL (FORM4, TYPE6) each with I/C 2000A, 4P, 36kA, EDO, LSIG ACB - 1 No. 2500A 4P AL BUSBAR. BUSBAR SHALL BE TIN PLATED WITH SILVER CONTACTS. O/G 2000A, 4P, 4P, 36kA, EDO, LSIG ACB - 1 No O/G 1000A, 4P, 4P, 36kA, EDO, LSIG ACB - 3 No All incomer shall have SPD Class 1+2 with 100A 4P MCCB , RYB phase indicator lamp with MCB, on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring, CT for APFC panel, CT for DG Sync panel. All outgoing shall have on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring.

Supply, Installation, Testing & Commissioning of METER-4 PANEL (FORM4, TYPE6) each with I/C 2000A, 4P, 36kA, EDO, LSIG ACB - 1 No . 2500A 4P AL BUSBAR. BUSBAR SHALL BE TIN PLATED WITH SILVER CONTACTS. O/G 2000A, 4P, 4P, 36kA, EDO, LSIG ACB - 2 No O/G 1000A, 4P, 4P, 36kA, EDO, LSIG ACB - 1 No O/G 800A, 4P, 4P, 36kA, EDO, LSIG ACB - 3 No O/G 400A, 4P, 4P, 36kA, MP, MCCB - 1 No All incomer shall have SPD Class 1+2 with 100A 4P MCCB , RYB phase indicator lamp with MCB, on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring, CT for APFC panel, CT for DG Sync panel. All outgoing shall have on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring.

Supply, Installation, Testing & Commissioning of METER-5 PANEL (FORM4, TYPE6) each with I/C 2000A, 4P, 36kA, EDO, LSIG ACB - 1 No 2500A 4P AL BUSBAR. BUSBAR SHALL BE TIN PLATED WITH SILVER CONTACTS. O/G 1000A, 4P, 4P, 36kA, EDO, LSIG ACB - 1 No O/G 400A, 4P, 4P, 36kA, MP, MCCB - 2 No O/G 125A, 4P, 4P, 36kA, MP, MCCB - 1 No O/G 100A, 4P, 4P, 36kA, MP, MCCB - 1 No All incomer shall have SPD Class 1+2 with 100A 4P MCCB , RYB phase indicator lamp with MCB, on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring, CT for APFC panel, CT for DG Sync panel. All outgoing shall have on / off / trip indicator lamp, Digital MFM compatible for BMS control, CT for metering, control wiring.