Diesel Generators

Diesel generator is commonly used for the electric current generation, which is generated from combustion of diesel. The diesel generator supplied by us generally praised for its high compression ratio and lean burn mechanism.

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Detailed Description for Diesel Generators

We are one of the well-known manufacturers and suppliers of Diesel Generator. The offered diesel generator is very widely used for the generation of electric current, through combustion of diesel. Our supplied diesel generator is widely acclaimed for high compression ratio and lean burn mechanism. The manufactured diesel generator is available at very affordable market rates. 


  • Adiabatic compression
  • Powered by diesel
  • Longer functional life


Type : 4 strokes,

No: of Cylinders : 6 cylinders

Cooling : water cooled and turbo charged,

Diesel Engine Capacity : Minimum 600 BHP @ 1500 RPM under NTP conditions

Engine designed to run continuously, confirming to BS: 5514/ DIN-6271/IS 10002/ ISO – 3046. With an overload capacity of 10% for one hour in any 12 hours continuous operation. 


2. The engine shall be complete with the following accessories:

a) Heat Exchanger

b) Corrosion inhibitor coolant

c) Paper element filters for fuel, lube oil and by-pass

d) Flywheel to single bearing alternator with housing.

e) Dry type air cleaners and vacuum indicators

f) PT Self Adjusting direct fuel injection system

g) Silencer

h) Stainless steel exhaust flexible bellows

i) Electronic Control panel with digital governor suitable for synchronization.

j) Electric Starter

k) Battery charging alternator

l) Electronic Instrument panel (Displaying the following): a. Battery Voltage b. Coolant Water Temperature c. Lubricating Oil Pressure d. Engine Speed e. Engine Hours

m) Safety Control : High water temperature(HWT) (Trip & Indication for) : Low lube oil pressure (LLOP) : Over speed stop

n) Air inlet system, Charging system, Control system, Exhaust system. 

3. Fuel consumption:

At 75% of rated load the Bench Mark - Fuel Consumption is 78.0 litres /hr. The fuel consumption indicated by the supplier shall be guaranteed for first 600 hours of operation / first one year whichever is earlier. Suppliers offering equipment with higher fuel consumption shall be loaded for extra cost of fuel. For increase or decrease of every litre per hour of specified fuel consumption, cost of the additional fuel would be loaded (added/ reduced) from quoted DG Set price as per loading factor given later in this document to arrive at final tender value. 

4. Efficiency:

90% or higher. Performance Guarantee Certificate (Specifically indicated from Authorized agency for Certification) to be provided by the supplier for Type approval and conformity of production testing of DG set.


Alternator confirming to BS:5000/ IS:4722 with standard design with IP 23 Protection, suitably rated at 400 KW / 500 KVA at 0.8pf, 415 Volts, 3 phase, 4 Wires, 50 Hz., 1500 RPM, self excited (brushless excitation)and self regulated, Band of Voltage Regulation +/-1.5% of rated voltage (from no load to full load) and Class “H” Insulation. Alternator should be mounted on a common single base frame and coupled directly to the engine..


Sturdy, fabricated / welded construction, made out of high quality Steel section suitable for mounting the engine and alternator. The base frame shall be suitably designed to simplify transportation, handling, slinging, E&C. Shall have provision for levelling adjustments, as required during installation. 


Cubicle type, floor mounting Control Panel, with dust and vermin proof for accommodating the following:

a) Suitable Moulded Case Circuit Breaker, Ammeter with Selector switch

b) Voltmeter with Selector Switch, 500 Volts

c) Frequency Meter

d) KWH Meter

e) KW Meter

f) Current Transformers

g) Indicating Lamps for Supply “ON” & Load “ON”

h) Instrument fuses  


Fuel Tank should be located nearest to the DG set enclosure to ensure free flow of Diesel.


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, Lower capacity battery pack will be loaded to equipment cost.

10. NOISE LEVEL OUTSIDE the enclosure: 75 dbA at a distance of 1metre under free field condition and adhere to the guide lines of MOEF (Ministry of Environment and Forest) and CPCB (Central Pollution and Control Board) norms.

11. Provision to log essential parameters at 1minutes interval shall be provided along with Optional Data logger, to be quoted separately.

12. Desirable maximum ambient temperature without derating: Base level 480 C but not less than 450 C, considering peak summer temperature. *(For every degree increase advantage point to be given as per derating specified by supplier)*

13: Lube oil System: Complete with cooling system, oil temperature monitor, filtration system up to 20 microns, level indicator and fume disposal system to be provided. Fuel system with primary and secondary fuel filter, fuel pump to be provided.

14. The Supplier should attend to the Breakdowns within 24 hours of reporting the fault and put the DG set back in Operation. The supplier should provide the auto-recording Telephone number and any other contact number available for reporting the breakdown.

15. Training to the Staff of BHEL (R&D) involved in Operation & Maintenance of DG set to be imparted at site.

Minimum Qualification Criteria:

Vendor shall have supplied at least 10 such sets to central, state, defence and public sector since 1st.April’08 and document to that extent to be submitted without which the offer is liable to be rejected. Proof of service centre in twin cities to be provided. The supplier should submit compliance statement against each point of Technical Specification along with this offer. Overall, single compliance statement is not acceptable. In the absence of point wise compliance statement, the offer is liable for rejection. 


The quoted price shall be modified by the technical loading factors (in addition to commercial loading factors) as given below to arrive at cost to BHEL.

1. Fuel consumption (Clause-3 of specs): BHEL’s reference for fuel consumption is 78.0 litres / hour (LPH). Equipment consuming more than 110% of this value (above 85.8 LPH) shall be rejected technically. For qualifying equipment (fuel consumption less than 78.0 LPH and between 78.0 to 85.8 LPH) the differential fuel cost for intended service during first year (500 hours) at prevailing fuel cost (HSD) would be added to offered price of the basic equipment. Equipment consuming below 78.0 LPH shall be considered at par and nil fuel consumption loading shall be applied.

Example-1 Guaranteed fuel consumption: 80litres /hour Equipment cost: 27.0 Lakhs HSD cost: Rs. 35.00 per Litre Fuel Loading: (80-78) x 500 x 35 = 35000 CST Price of the equipment: 27.0 + 0.35 = 27.35 Lakhs

Example-2 Guaranteed fuel consumption: 75 litres /hour Equipment cost: 27.0 Lakhs HSD cost: Rs. 35.00 per Litre Fuel Loading: NIL CST Price of the equipment: 27.0 + 0.00 = 27.00 Lakhs 


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