The document discusses replacing the existing 100 KVA diesel generator set with a new 400 KVA set at the KDM complex in Jodhpur. The existing set has several shortcomings like insufficient capacity, high noise and maintenance needs. The electrical load at the complex is around 311 KW. A 400 KVA set from Cummins with a QSN14 engine, 415V output, and less than 75dB noise is proposed. It would have lower fuel consumption and maintenance compared to the older 100 KVA set and meet the site's current power requirements.

1. MAYURAKSHI INSTITUTE OF ENGINEERING &
TECHNOLOGY
SUMMER TRANNING
AT
OIL & NATURAL GAS CORPORATION LIMITED
TRAINEE RAMLAL CHOUDHARY

3. COMPANY PROFILE
• Established in 1956 in India.
• It is ranked 22nd among the Top 250 Global
Energy Companies and 5th in Asia.
• ONGC is world's NO. 3 Exploration and
production company.
• Founder of ONGC- Late Shri K D Malviya
• Head office of ONGC in situated in dehradun ,
India
• ONGC responsible for extraction & production
of crude oil in India .

4. Principle & operation of generator :-
• A generator is a machine by which mechanical energy is
transformed into electrical energy.
• Generators can be sub-divided into two major categories
depending on the electric current produced is alternating
current (AC) or direct current (DC)
• The basic principle on which both types of generator works
is the same

5. N
N
SS
FIELD
WINDINGPOLE
ARMATURE
BASE
COMMUTATOR
YOKE

6. • The Generator Works upon the Principle of
Faraday's law of electromagnetic induction.
• 'when a conductor moves in a magnetic field
(cutting the magnetic flux lines), an emf gets
induced in the conductor'.
• The direction of induced emf can be determined
with help of Fleming's right hand rule

7. Installed DG SET at KDM Complex
• Company name = cummins
• Manufacturing Date :- 04 – 05 -2002
• Model :- NT-495-G
• Rating = 100 KVA
• Power factor = 0.8
• Output voltage = 415 V
• RPM = 1500
• Frequency = 50 Hz
• Output Current = 139 A
• Noise = 65-75 db

8. Short Comings of Existing DG SET
• Capacity of installed DG SET is not as per
actual load it fulfil the utility requirements of
KDM complex.
• Generator is not suitable for environment.
• Existing DG SET is not energy efficient.
• Fuel consumption is high.
• High maintenance required.
• Generates high noise (65-75db).

9. ELECTRICAL LOAD AT KDM COMPLEX
JODHPUR
TYPES OF ELECTRICAL LOADS INSTALLED
LOAD
HR SECTION 30,062W
F&A SECTION 28,029W
Geology & Chemistry SECTION 28,153 W
ENGG SECTION 45,440W
HFB & PRODUCTION SECTION 25,731W
CMC SECTION 7,122W
DRILL SECTION 28,268W
SCADA 76,554W
LOGISTIC SECTION 13,877W
MM SECTION 8,856W
SECURITY SECTION 3,751W
CANTEEN 2,780w
WATER MOTORS 11,190w
AREA LIGHTS + STREET LIGHTS 5,718w
TUBE LIGHTS car parking 240w
TOTAL POWER 310805 W
TOTAL POWER CONSUMPTION IN KDM COMPLEX ,JODHPUR 310.805 KW

10. CALCULATION FOR PROPOSED DG SET
• TOTAL EXISTING LOAD: 311 KW
• CONSIDERING POWER FACTOR =0.8
311/0.8 – 388.75 KVA
• THEN EXISTING LOAD IN KVA=388.75
• SAY TOTAL =400 KVA

11. PROPOSED DG SET
• Capacity =400 KVA
• OUTPUT CURRENT= 400 v
• Hz = 50
• Phase = 3
• Rpm = 1500
• NOISE (db) = <75

12. AVALIABLE GENERATORS OF COMPANY
• Cummins Diesel Generator Set (QSN14 Series)

13. Engine
• Cummins QSN14 series, 6 cylinder, 4 stroke, water
cooled engine .
• Compact in size with optimum power
• Dual fuel filter system .
• Water & Fuel sensor are connected .
• Coolant in cooling system is circulated in the engine
to maintain temp. in engine.

14. Alternator
• An alternator is an electromechanical device that converts
mechanical energy to electrical energy in the form of alternating
current. It may be called an AC.
• Stamford HC alternator Cummins Generator Technologies .
• 3 Phase .
• Better motor starting capability .
• ƒƒBest in class efficiency .
• Compact design with sealed bearings for
longer life and lesser maintenance .
• Better mechanical strength .
• suitable for operation at 1500 RPM, 415 Volts,
0.8 pf , suitable for 50 Hz, 3 phase, 4 wire system.

15. Auto start system
• Power Start operates on 12 V DC batteries
• Auto start mode accepts a ground signal from
remote devices to automatically start the DG
set.
• Engine Starting – The control system supports
automatic engine starting .
• Controller provide time delay of 0-300 secs to
start after remote start signal and time delay
of 0-600 secs prior to shutdown after stop
signal.

16. • SILENCER
• Silencer absorb high noise 1m
area in 100% working
• less Noise create <75db
• VIBRATION PAD
• Vibration pad absorb
the vibration working
condition in dg set.

17. Technical Data
• Power Rating kVA = 400
• No. of Phases = 3
• Output Voltage and Frequency (V and Hz) = 415 V, 50 Hz
• Power Factor = 0.8 (lagging)
• Current (A) = 556
• RPM = 1500
• Fuel consumption @75% load with radiator and fan* = 67.45
(litre/hr)
• Fuel consumption @100% load with radiator and fan* = 88
(litre/hr)
• NOISE (db) = <75 db
• PRICE = 23,36,706 Rs

18. COMPARISON:
S.N Technical Data CUMMINS NEW CUMMINS OLD
1. FUEL
CONSUMPTION
100% load
88 (LTRS/HR) 22
75% load 67.45 17
2. POWER RATING
(KVA) 400 100
3. O/P VOLTAGE &
FREQUENCY
415 V / 50 HZ 400 V / 50 HZ
4. ENGINE Cummins QSN14 series,
6 cylinder, In-line 4
stroke, radiator cooled
engine
Cummins 6BT5.9-G2 , 6
cylinder , 4 stroke engine
5. PRICE 23,36,706 Rs 6,25,933 Rs
6. Current (A) 556 150
7. Alternator Stamford Stamford
(Single bearing, Brushless,
Self-excited)