Energy Audit of Rig E-2000 S-7, Oil India Ltd.
OF
Conducted By
EASTERN REGION ,2, Gariahat Road South, Dhakuria,Kolkata –68
Ph: 033–414 5092,24145088,2414 5094;Telefax: 33 –414 5091
e-mail: ,Website:
Acknowledgement
Petroleum Conservation Research Association (PCRA) appreciates the keen interest shown by the management of M/s. Oil India Ltd., Duliajan, Assam in carrying out energy audit at E 2000 S-7 Rig, ,Location MAKUM by us. Our special thanks to all team members of M/s. Oil India Ltd. for the proactive support and courtesy extended to the visiting energy audit team during the study conducted.
We wish to express our sincere thanks and deep gratitude to the following Executives who took exceptional interest in conducting the study and provided all around assistance to get the best of the Energy Audit Survey:
From OIL :
- Mr. B.N.Tiwari ,Head (Technical Audit)
- Mr. R.Mandal, Chief Manager –Technical Audit
- Mr. Kishore Deka,Senior Technical Auditor
- Mr. P.HAZARIKA,Chief Engineer –Drilling ,OIL
- Mr.L.Yanschang ,superintending engineer-Drilling,OIL.
- Mr.Babul Dutta ,Senior Engineer –Electrical,OIL
- Mr.Bijoyananda Gogoi,Mechanical Engineer,Drilling,OIL
- Mr. B.Tannuly ,tool pusher,north east driling.
- Mr. Biman Phukan ,Electrical Engineer,north east drilling,.
- Mr R.Borah ,Mechanical Engineer ,North East Drilling ,
Energy Audit Team:
- Mr. D. Dutta, Jt. Dir., PCRA, Certified Energy Auditor ,ER
- Mr Avijit Chanda,jt Director,PCRA,ER
- Dr Shivaji Biswas ,certified Energy Auditor,PCRA
We also acknowledge the helpful attitude and co-operation of all the technicians, staffs and plant operators,whose diligent laborto field study have made the fruition of this project.
(P.K .Roychowdhury)
Addl. Director & CRC PCRA, ER
RELEVANT INFORMATION
RELAVENT INFORMATION1 / Name and address of the Industry / M/s. Oil India Ltd.
Technical Audit Department
Dist: Dibrugarh,
Duliajan – 786602, Assam
2 / Name & Contact no.IM / Mr. P.Hazarika chief Engineer
3 / PCRA Team Members /
Mr.D.Dutta, Jt. Dir., PCRA, ER
Mr Avijit Chanda,Jt Director,PCRA,ERDr Shivaji Biswas,Certified Energy Auditor,PCRA
4 / Period of Audit / August ’2014
5 / Date of commissioning of rig / 07/04/2014
6 / No of wells completed as on 30/04/2014 / na
7 / Total meter drilled on 30/04/2014 / na
8 / Cycle speed / na
PRESENT LOCATION
1 / NAME OF LOCATION/WELL / Hwb-h
2 / Date of spudding / 10/12/2013
3 / Target depth / 3000meter
4 / Drilled depth / 3005meter
5 / Total Estimated Fuel Oil (HSD)Requirement by DGs / year
(considering 3 nos. site operation in a year) / 234 kilolitre considering 3 site opn/yr
6 / Specific fuel Consumption / 46.365 lit/hr
7 / Total Estimated Fuel Oil Cost / RS 50,000/KILOLITRE
8 / Saving potential (HSD)/ Year / 11.566 kl
9 / Saving potential in % of Estimated Annual Fuel Consumption / 4.94
INDEX
Sec. No. / Title / Page
1.0 / Executive Summary / 6
2.0 / Summary of anticipated savings and investment / 12
3.0 / Introduction / 13
4.0 / Process Description / 17
5.0 / Study of DG Sets, RIG ,and utilities / 19-61
List of tables
RUN HOURS VS HSD CONSUMPTION-AUG,2014 / T-1RUN HOURS VS HSD CONSUMPTION-JULY,2014 / T-2
SP POWER CONSUMPTION-CAT2,3,4 / T-3
SUMMARY OF RECOMMENDATIONS AND ANTICIPATED SAVINGS / T-4
CONNECTED LOADIN RIG / T-5
SPECIFICATION OF DG SETS / T-6
PERFORMANCE OF COMPRESSOR-1 / T-7
PERFORMANCE OF COMPRESSOR-2 / T-8
TROUBLE SHOOTING IN ELECTRICAL POWER SYSTEM / T-9
LIGHTS USED IN E2000S-7 RIG / T-10
LIST OF FIGURES
PROCESS FLOW CHART OF DRILLING RIG / F-1GENERAL ARRANGEMENT OF RIG EQUIPMENTS / F-2
DRILLING RIG ASSEMBLYL / F-3
SINGLE LINE POWER FLOW DIAGRAM / F-4
Fuel efficiency vs load change for CAT 3513B engine / F-5
Compress air distribution suitable for energy audit. / F-6
1.0Executive Summary:
1.1 Connected load and captive power generation capacity
Total connected DC load for the Rig operations is 4.113 MW and that of AC load is 0.880MW. Hence, total connected electrical load is 4.99 MW.
Total captive power generation capacity by 4 nos. DGs are 3.4MW. The normal operating load or peak operating demand load is catered by single or joint operation by three nos. DGs.
1.2Study of fuel consumption per hour of engine running::
After analyzing the data for the entire drilling operation, we have derived that the
Fuel(diesel) Consumption= 46.36 Ltrs. / Hour of engine running
1.3 Study of load on DGs:
A detailed study reveals that during the drilling operations, the DGs were operated at part load. The range of this part load varies from 4% to 39% in most of the operating days. The peak loads on DGs have never crossed 50% and observation says, load on each of the four DGs were between 40% to 50% only for 3 to 4 days of entire drilling operations.
The derived average specific fuel consumption in relation to the present operating condition is 278 gm/kWh. The reason behind this higher specific fuel consumption is part load operation of the DGs.
Study of gen-set at different % loading along with load curve (actual vis-à-vis theoretical) is shown here.
T-1, RUN HOURS VS HSD CONSUMPTION , MONTH :AUGUST ,Rig –s7,HWP
DATE / DEPTH DRILLED IN METER / RUNNING HOURS OF GENERATOR / TOTAL RUN HRS / HSD IN LITCat-1 / Cat-2 / Cat -3 / Cat-4
1/8/14 / 146 / 20 / x / 3 / x / 23 / 1886
2/8/14 / 399 / 24 / x / 12 / x / 26 / 2418
3/8/14 / 566 / 24 / X / 24 / x / 48 / 2443
4/8/14 / 983 / 24 / X / 24 / X / 48 / 2904
5/8/14 / 13 / 24 / x / 24 / X / 48 / 3955
6/8/14 / 1368 / 18 / 16 / 2 / - / 36 / 2809
7/8/14 / 1476 / 17 / 24 / X / x / 41 / 2851
8/8/14 / 1700 / 7 / 24 / 17 / X / 48 / 4579
9/8/14 / 1804 / x / 7 / 17 / 24 / 48 / 3752
10/8/14 / 1804 / X / x / 4 / 24 / 28 / 1446
11/8/14 / 1804 / X / x / 8 / 24 / 32 / 1880
12/8/14 / 1804 / x / x / 18 / 16 / 34 / 2074
13/8/14 / 1804 / x / 24 / x / x / 24 / 1340
14/8/14 / 1804 / x / 1 / 09 / 23 / 33 / 1600
15/8/14 / 1804 / x / x / x / 24 / 24 / 1003
16/8/14 / 1804 / x / x / 16 / 8 / 24 / 1003
17/8/14 / 1804 / 15 / x / 9 / x / 24 / 994
18/8/14 / 1804 / 14 / 10 / 24 / 891
19/8/14 / 1804 / x / 9 / x / 15 / 24 / 892
20/8/14 / 1804 / x / 24 / x / x / 24 / 780
21/8/14 / 1804 / x / 5 / x / 19 / 24 / 890
22/8/14 / 1804 / x / x / x / 24 / 24 / 778
23/8/14 / 1804 / 20 / x / x / 04 / 24 / 832
24/8/14 / 1785 / 24 / 1 / x / x / 25 / 1556
25/8/14 / 1850 / 24 / 12 / 5 / x / 41 / 2328
DG Loads for S-7 Rig for one complete Drilling operation from 01/08/14 to 25/08/14 with a depth of 1850 meters
date / DEPTH OF DRILLIN METER / HSD IN LITRE / HSD/METER DRILLED01/08/2014 TO 03/08/2014 / 1111 / 6747 / 6.07
04/08/14
TO 5/8/14 / 996 / 6859 / 6.88
6/8/2014 TO 12/8/2014 / 6348 / 19391 / 3.05
13/8/14 to25/8/2014 / 50 / 14887 / 297.7
Data revealed that depth of drill was maximum on 13/8/2014 and minimuml for the other days of month . There was much less load in such days. Electricity energy was used solely for non drilling activity. For non drilling load it is recommended to use one 500KVA DG set.
From the above study, it is found that in the month of AUG 2014 drill depth was 1534meter and diesel consumption by Diesel Generators are 47884 Ltrs. = 47.884 KL.
Total running Hours =880 Hrs.
Fuel Consumption per hour of Engine running = 47884/880 = 54.41 L/Hr.
Total kWh generated by the DGs =591788 kWh
Total depth of drill hole = 1850-146 or,1704 M for the month of August 2014
Fuel consumption per meter drill = 47884/1704 =28.10 Ltrs./Mtr.
Power generating cost: Rs. 16.35/ kWh
T-3 RUN HOURS VS HSD CONSUMPTION MONTH :JULY,14 ,Rig –S7,LOC :HWP
DATE / DEPTH DRILLED IN METER / RUNNING HOURS OF GENERATOR / TOTAL RUN HRS / HSD IN LITCAT-1 / CAT-2 / CAT-3 / CAT-4
1/7/14 / PULL OUT / 24 / X / X / X / 24 / 1114
2/7/14 / PULL OUT / 24 / X / 17 / X / 41 / 2106
3/7/14 / PULL OUT / 9 / X / 16 / 12 / 37 / 1560
4/7/14 / PULL OUT / X / 4 / 4 / 24 / 32 / 163
5/7/14 / 17 / X / X / 05 / 22 / 1236
6/7/14 / PULL OUT / 24 / X / X / X / 24 / 990
7/7/14 / PULL OUT / 24 / X / X / X / 24 / 874
8/7/14 / 13 / X / X / 11 / 24 / 976
9/7/14 / X / X / X / 24 / 24 / 1153
10/7/14 / 5 / 1 / X / 24 / 30 / 1292
11/7/14 / X / X / X / 1 / 1 / 732
12/7/14 / X / 23 / X / 23 / 767
13/7/14 / X / 24 / X / 24 / 1124
14/7/14 / X / 24 / X / 24 / 892
15/7/14 / RIG DOWN / 8 / 24 / X / 32 / 1340
16/7/14 / X / 24 / X / X / 24 / 779
17/7/14 / 4.5 / 7 / X / 19.5 / 24 / 852
18/7/14 / X / X / X / 24 / 24 / 664
19/7/14 / X / X / X / 24 / 24 / 772
20/7/14 / RIG UP / X / X / X / 24 / 24 / 734
21/7/14 / X / X / X / 24 / 24 / 655
22/7/14 / X / X / X / 24 / 24 / 726
23/7/14 / X / 22 / X / 2 / 24 / 862
24/7/14 / X / 24 / X / X / 24 / 857
25/7/14 / 4 / 24 / 1 / X / 25 / 1379
26/7/14 / SPUD IN / X / 24 / 24 / X / 48 / 1044
27/7/14 / ,, / 11 / 13 / 13 / X / 37 / 1060
28/7/14 / “ / 05 / X / 19 / X / 24 / 1087
29/7/14 / 15Om / X / X / 24 / X / 24 / 1600
30/7/14 / “ / X / X / 24 / X / 24 / 1311
31/7/14 / “ / X / X / 24 / 24 / 48 / 1206
HSD consumption for S-7 Rig for Drilling operation from 01 /07 /14 to 1/07/14 with a depth of 150 meters.
Data revealed that depth of drill was 150M on 31/7/2014 and nil from 01/7/14 to 15/07/14 for the first fifteen days of month .Energy was used solely for non drilling activity.For non drilling load it is recommended to use one 500KVA DG set.
From the above study, it is found that in the month of july 2014 drill depth was 1554meter and diesel consumption by Diesel Generators are 31887 Ltrs. = 31.887 KL.
Total running Hours =832 Hrs.
Fuel Consumption per hour of Engine running =31887/832 = 38.325 L/Hr.
Performance of DG sets under no load
T-3 SPECIFIC POWER CONSUMPTION OF CAT -2,3,4
CAT -2, DATE OF STUDY 01/09/2014FUEL CONSUMPTION RATE / 14GPH OR, 52.99LIT/HR
RPM / 1008
POWER / 160KW (NO DRILLING)
SP POWER CONSUMPTION / 3.01 KWH/LIT
% LOADING / 18.81
CAT -3, DATE OF STUDY 01/09/2014
FUEL CONSUMPTION RATE / 12.5GPH OR, 47.31LIT/HR
RPM / 1008
POWER / 160KW (NO DRILLING)
SP POWER CONSUMPTION / 3.38 KWH/LIT
% LOADING / 18.81
CAT -4, DATE OF STUDY 01/09/2014
FUEL CONSUMPTION RATE / 16GPH OR, 60.56LIT/HR
RPM / 1008
POWER / 160KW (NO DRILLING)
SP POWER CONSUMPTION / 2.64 KWH/LIT
% LOADING / 18.81
CAT -3, DATE OF STUDY 01/09/2014
FUEL CONSUMPTION RATE / 38GPH OR, 143.67 LIT/HR
RPM / 1007
POWER / 400KW ( DRILLING)
SP POWER CONSUMPTION / 2.78 KWH/LIT
% LOADING / 47.03
EXHAUST TEMP / 5470C
CAT -4, DATE OF STUDY 01/09/2014
FUEL CONSUMPTION RATE / 38GPH OR, 143.67LIT/HR
RPM / 1006
POWER / 425KW ( DRILLING)
SP POWER CONSUMPTION / 2.95 KWH/LIT
% LOADING / 49.97
EXHAUST TEMP / 5460C
Hence, we have recommended the following:
Recommendation-1: Rationalize DG operations to ensure the load on DGs above 50% with existing on line generators.
Since, many a times, it is a usual practice to operate necessary AC connected load during the drilling operations. It is very difficult to rationalize the load with existing higher size(1215 KVA) DGs when the load requirement is very low. Hence, it is justified to install a smaller size DG to cater the AC-load as and when required.. It is advisable to use the lower capacity gen-set during production testing / waiting for allied services etc. when only auxiliary and lighting load is required.(Note: Such practice is prevalent at the Rig of M/s. JAY BEE Energy(P) Ltd. The model of the Rig is DZ 315/9-S and nominal drill depth of which is 3000 – 5000M).They have installed a 400 KVA DG of VOLVO PENTA make. Hence, we have given one additional recommendation:
Recommendation-2: Install a 400 KVA DG set to cater the AC load which will help in optimizing the load on bigger DGs also.
The implementation of above recommendations will give a savings of Rs.22,24,000/- per year with an investment of Rs.102,00,000/- and pay back of 5 years.
However the capacity of the DG set need to be assessed by considering the actual loading pattern of auxiliary and lighting load.
1 / For kiroskar gensets :IMAGINE POWER CORPORATION,305 TN MUKHERJEE ROAD,DANKUNI ,HOOGLY :MOB :97480127772 / WESTERN CONSOLIDATED POWER LTD
3 / RAJKISSEN RADHAKISSEN MITTER
1.4 Study of Illumination:
The Rig unit is using 23 nos. 36 W FTL. At present context, it is not energy efficient. Use of 29W T-5 Lamp in place of 40W FTL will produce same illumination effect at lower energy input.
Hence, we recommend to replace all the 36W FTLs with energy efficient T-5 lamps without declining the lux level.
The implementation of above recommendations will give a savings of 708/- per year ..
2.0 Summary of anticipated savings and investment
T-2 summary of recommendations and anticipated savings
Sl No / Area of Savings / Savings of KL of HSD / Kwh of ENERGY / Savings per operation / investment / Payback ( Considering Yearly 3 nos operations per rig)1 / Rationalize Present DG operations to ensure the load on DGs above 50% with existing on line generators / 11.566 KL of HSD / 6.00 Lakhs / 30 lakhs for 400 KVA DG set / 5YEARS
2 / Placing New DG D-3512B with 50% loading with respect to present condition. / 30.96 KL of HSD / 15.48 Lakhs / 30 lakhs for 400 KVA DG set + 72 Lakhs for D3512B genset / 7YEARS
3 / Replace underloadedbooster pump motor,mudmixer pump motor,mud agitator motor and illumination system / 7618kwh per annum / 1.245 lakhs / Replace lower hp motor from workshop
3.0 Introduction:
The story of Oil India Limited (OIL) traces and symbolizes the development and growth of the Indian petroleum industry. From the discovery of crude oil in the far east of India at Digboi, Assam in 1889 to its present status as a fully integrated upstream petroleum company, OIL has come far, crossing many milestones.
On February 18, 1959, Oil India Private Limited was incorporated to expand and develop the newly discovered oil fields of Naharkatiya and Moran in the Indian North East. In 1961, it became a joint venture company between the Indian Government and Burmah Oil Company Limited, UK.
In 1981, OIL became a wholly-owned Government of India enterprise. Today, OIL is a premier Indian National Oil Company engaged in the business of exploration, development and production of crude oil and natural gas, transportation of crude oil and production of LPG. OIL also provides various E&P related services and holds 26% equity in Numaligarh Refinery Limited.
The Authorized share capital of the Company is Rs. 2000 Crores. The Issued, Subscribed and Paid share capital of the company is Rs. 601.14 Crores. At present, The Government of India, the Promoter of the Company is holding 78.43% of the total Issued & Paid-up Capital of the Company. The balance 21.57% of the Equity capital is held by others.
OIL has over 1 lakh sq km of PEL/ML areas for its exploration and production activities; most of it is in the Indian North East, which accounts for its entire crude oil production and majority of gas production. Rajasthan is the other producing area of OIL, contributing 10 per cent of its total gas production.
Additionally, OIL’s exploration activities are spread over onshore areas of KG Basin, MahanadiBasin, CauveryBasin, AndamanBasin and Gujarat-Kutch Basin etc. OIL also has participating interest in NELP exploration blocks in Mahanadi Offshore, Mumbai Deepwater, Krishna Godavari Deepwater, etc. as well as various overseas projects in Libya, Gabon, Iran, Yemen, Nigeria, Sudan and Venezuela.
In a recent CRISIL-India Today survey, OIL was adjudged as one of the five best major PSUs and one of three best energy sector PSUs in the country.
Objective of Energy Audit
With the advent of energy crisis and exponential hikes in the costs of different forms of energy, Energy Audit is manifesting its due importance in Industrial Establishments. Energy Audit helps to understand more about the ways energy and fuels are used in any Establishment and helps in identifying areas where waste may occur and scope for improvement exists.
Energy Audit is the key to a systematic approach for decision-making in the area of energy management as it attempts to balance the total energy inputs with its use and serves to identify all the energy streams in a facility/ Establishment.
It was with this objective that Petroleum Conservation Research Association (PCRA) was entrusted by OIL, the Energy Audit of E-1400-S-1 Drilling Rig at Duliajan, Assam.
3.1 Well Description:
The rig was deployed at Duliajan area in Assam.
Location: HWP-MAKUM
Rig Type: Electrical (E-2000)
Well No.S-7
Target Depth: 3500 Meter
Type of well: straight
Date of Spud-in: 10-12-2013
Process flow chart for the Rig is shown in Fig. 3.1.1. Types of drilling are as follows:
- Vertical drilling
- Horizontal drilling
- Inclined drilling(deviation)
Horizontal and inclined drilling increases the perforation area. The decision whether to drill vertical, horizontal or inclined, is dependent on the strata and oil availability. Complete drilling program is pre–decided and it is given in GTO for the well.
3.2 Drilling Fluid (Mud):
Mud has several roles while drilling the well; these are lubricant and coolant for the drill bit, remove rock chips & cuttings from well, to soften the rock/soil. Therefore chemical composition and specific gravity of the mud vary according to the depth and requirement.
Constituents of the mud include lignite, Caustic soda, caustic potash, Causticities lignite (Generally used up to 1300 m), Chrome lignite, Resin lignite (Generally used at last depth), Barites, Bentonite, CMC (carboxyl methyl cellulose), Drilling detergent, Linseed oil, Spoil- ting fluid, Sulphonated asphalt etc.
3.3Important Equipments / Attachments
- Draw Works: This system provides drilling energy to the drill bit and all mechanical energy requirements at the rig (e.g. operations like drilling, running-in, pulling-out) except flow of the mud, which is powered by the mud pump.
- Compressors: Compressed air is utilized for cranking of diesel engines, various pneumatic controls and other support applications.
- Supercharger: Mud pump is attached to centrifugal pump, which is also called as super-charger (2 no’s of 100 hp each).
- Mud pump: Mud Pump is used for pumping the drilling fluid (mud) at high pressure as per the requirement of drilling operation.
- Agitators: Mud is prepared with the help of number of agitators. Agitators are used for agitation and also to prevent solidification or cake formation.
3.4 About Drilling Rig:E 2000 S-7
Presently the rig is located at NLB Site.
1)Rig Capacity:1400 hp
2)Date of commissioning:07.04.1984
3)Last Well drilled:
4)Mast Height:142 feet
5)Derrick Floor height:25 feet
6)Asset Manager:Mr. P HAZARIKA
7)Installation Manager:Mr. L.YANSCHANG-
8) Engine/ sets:4 nos.
9) Make/ Engine Model: Caterpillar / D-3512
10)Engine Output:972 hp at 1000 rpm
11)Alternator Capacity:1215 kVA
12)Date of sprudding :
13)No of wells completed :
14)Total meter drilled :
15)Target depth :3500merter
16)Drilled depth :3084 meter.
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Petroleum Conservation Research Association – Eastern Region
Energy Audit of Rig E-2000 S-7, Oil India Ltd.
F-1:Process Flow Chart of Drilling Rig
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Petroleum Conservation Research Association – Eastern Region
Energy Audit of Rig E-2000 S-7, Oil India Ltd.
Fig 2 : GENERAL ARRANGEMENT OF THE RIG EQUIPMENTS
Sr. / Equipment / Machine / Capacity1. / DG – 1 / 1215 KVA
2. / DG – 2 / 1215 KVA
3. / DG – 3 / 1215 KVA
4. / DG – 4 / 1215 KVA
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Petroleum Conservation Research Association – Eastern Region
Energy Audit of Rig E-2000 S-7, Oil India Ltd.
Fig. 3: DRILLING RIG ASSEMBLY
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Petroleum Conservation Research Association – Eastern Region
Energy Audit of Rig E-2000 S-7, Oil India Ltd.
F-4 SINGLE LINE POWER FLOW DIAGRAM E-2000,S-7 RIG
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Petroleum Conservation Research Association – Eastern Region
Energy Audit of Rig E-2000 S-7, Oil India Ltd.
4.0 Total Connected Load in the Rig:
Connected Electrical load in the Rig are described below:
T-5 connected load in the rig
Connected DC loadSl.No. / Loads / HP / No. / KW
1 / D.C.Motor / 1000 / 6 / 4476
2
Total / 4476
Connected AC Load
A.C.Load
1 / Blower Motors / 7.5 / 6 / 33.57
2 / Water Booster / 40 / 2 / 59.7
3 / Mud Agitators / 10 / 12 / 89.52
4 / Multistage pump motor / 75 / 2 / 112
5 / After cooler motor / 0.55 / 2 / 0.82
6 / BOP / 15 / 1 / 11.19
7 / Degasser / 5 / 1 / 3.73
8 / Fuel Pump / 5 / 2 / 7.46
9 / Shale shaker / 5 / 2 / 7.46
10 / Cellar motor / 3 / 1 / 2.23
11 / Water Agitators / 10 / 4 / 29.84
12 / Mud pump liner flashing / 3 / 2 / 4.47
13 / Mud pump chain oiler / 1 / 4 / 2.98
14 / Air Compressor / 40 / 2 / 59.68
15 / Super Charger / 100 / 2 / 149.2
16 / Mud Mix / 100 / 1 / 74.6
17 / Desander/Desilter / 100 / 2 / 149.2
18 / Mud pump lube oiler / 2 / 2 / 2.98
19 / Draw works lube oil / 3 / 2 / 4.47
20 / Bug blower motor / 5 / 1 / 3.73
21 / Area Lighting Load / 15.541
Total / 824.35
Total connected load = 4476 KW + 824.37 KW = 5300.37 KW (Approx)
Total Captive Power = 1215 KVA x 0.70(P.F.) X4Nos.+63x0.7x2=3490.2 kw
5.0 Study of DG Sets:
5.1 Details of DGs:
The rig is having four nos. identical DGs. The capacity of each DG is1215 KVA and each connected to a common bus to cater both AC and DC load. The DG operations are increased or decreased as per the required demand. The details of each DG have been given below:
T-6 SPECIFICATION OF DG SETS
DG#1Alternator Details
Make / KATO Engg.
Sr. No.
Yr. of Mfg.
KVA / 1215
Rated Voltage / 600
Full load current / 1170
P.F. / 0.7
Engine Details
Make / Caterpillar
Model / D35128
Power / 1010 HP at 1000 RPM
Engine Type / 4 Stroke, Turbocharged, V12 water cooled
No. of Cylinders / 12
Sump Cap / 318 L
Rated Speed / 900-1800 RPM
Bore / 6.7", Stroke 7.5"
DG#2
Alternator Details
Make
Sr. No.
Yr. of Mfg.
KVA / 1215
Rated Voltage / 600
Full load current / 1170
P.F. / 0.7
Engine Details
Make / Caterpillar
Model / D3512B
Power / 1250 H.P.
Engine Type / 4 Stroke, Turbocharged, V16 water cooled
No. of Cylinders / 16
Rated Speed / 1000 RPM
Bore / 6.25", Stroke 8"
DG#3
Alternator Details
Make / .
Sr. No.
Yr. of Mfg.
KVA / 1215
Rated Voltage / 600
Full load current / 1170
P.F. / 0.7
Engine Details
Make / Caterpillar
Model / D3512B
Power / 1250 H.P.
Engine Type / 4 Stroke, Turbocharged, V16 water cooled
No. of Cylinders / 16
Rated Speed / 1000 RPM
Bore / 6.25", Stroke 8"
DG#4
Alternator Details
Make / .
Sr. No.
Yr. of Mfg.
KVA / 1215
Rated Voltage / 600
Full load current / 1170
P.F. / 0.7
Engine Details
Make / Caterpillar
Model / D3512B
Power / 1250 H.P.
Engine Type / 4 Stroke, Turbocharged, V16 water cooled
No. of Cylinders / 16
Rated Speed / 1000 RPM
Bore / 6.25", Stroke 8"
Engine DetailsX2ENGINES
Make
Model
Power / 63KVA
Engine Type
No. of Cylinders
Rated Speed / 1500 RPM
AMP / 85,5
PF / 0.7
5.2Load on DGs: