POWER SYSTEM CONSULTANTS

Transcription

1 GROUP POWER SYSTEM CONSULTANTS POWER-LINKER REFERENCE LIST : POWER SYSTEM STUDIES Given below is a list of Power System Study Projects and related Scheme Engineering Jobs executed by us: SR Cairn Energy India Pty. Ltd., (MPT) Barmer, Rajasthan. Sept Review of Power System Studies carried out by TCE. The review from 220 kv Barmer end to 33 kv switchgear and 11 kv switchgear bus. The review shall consists of 4 Nos. 12 MW STG's as Inhouse generation at 11 kv switchgear. The Scope of work shall include review of, a. Protection Functions, b. Relay Setting and Relay Co-ordination, c. PSL Logics within Protection Relay. at Mangala Processing Terminal (MPT) recommended by different vendors / Consultant Gujarat State Fertilizers and Chemicals Ltd., Vadodara July 2013 Short Circuit, Relay setting and Relay Co-ordination Study and Feasibility of Fast Bus Transfer Scheme (FBT) for Power Distribution System of 132 kv Main Substation. a. Submission of Key Single Line Diagram and Data Compilation Report. b. Carry Out, i. Short Circuit Study Report, ii. Relay Setting and Relay Co-ordination Schedules along with report for recommendation. Page 1 of 42

2 c. Unit Protection settings of, i. Generator, ii. Transformers, iii. Motors. d. Review of Auto transfer scheme. e. Feasibility Study for Fast Bus Transfer (FBT) Scheme Sesa Sterlite Limited Tuticorin Dec Sesa Sterlite Limited Copper Plant receives power from 2 nos. 80 MW TPP at 230V voltage level and it has in-house generation of 22.5 MW and total plant load is approximately 61 MW. The Scope of work shall includes : a. Data compilation & modeling of Sterlite electrical distribution system in power system analysis software ETAP. b. Short circuit study at various locations in Sterlite electrical distribution system. This will identify the short circuit rating of various Circuit Breakers of the system under fault condition. c. Load flow study: This will identify, I. The continuous current carrying capacity of various equipments. II. Steady voltage drop and III. Optimum tap for distribution transformers. IV. Motor starting study to identify Transient stability for, i. Highest rating DOL start motor (3300 kw). ii. Higher rating 6650 kw motor starting with and without soft starter. Page 2 of 42

3 d. Relay setting & Relay co-ordination study for system under scope from 220 kv incomer to 415 V outgoing. I. Phase to phase fault. II. Phase to ground fault PT IndoRama Ventures, Indonesia (IVI) July 2013 Carrying out Power System Study of Tangerang Project. a. Review of existing protection application, identify deficiencies if any in protection application and suggest missing protection. Provide functional specification for additional relays suggested. b. Carrying out Short Circuit Studies at various locations in electrical distribution system for normal operating condition to identify the phase to phase and phase to ground fault current. c. Carry out, i. Phase Fault Relay Co-ordination and ii. Ground Fault Relay Co-ordination d. Work out Unit Protection Settings for, i. Transformers, ii. MV Motors, iii. LV Motors. e. Load Flow study. f. Grid Islanding and Load Shedding Scheme & Synchronizing Scheme. g. Carry out Transient Stability Study with Background Load Flow Study. h. Review of existing PLN1 + CPP. Page 3 of 42

4 128.0 Deepak Fertilisers and Chemicals Limited, Taloja MIDC, Mumbai Gujarat Fluoro Chemicals Ltd., Dahej Kisanveer Satara SSKL, Bhuinj. Relay Setting calculation for 280 kw 3.3 kv HT Motor. Power System Study to enhance Reliability of GFL 11 kv Electrical Distribution System. Scope of Work : a. Data Compilation. b. Short Circuit Studies. c. Transient Stability Study. d. Relay Setting and Relay Co-ordination, i. Phase Faults and ii. Earth Faults. e. Modification in Grid Islanding and Load Shedding Scheme logic. Relay Setting and Relay co-ordination study of 22 MW Cogen plant. Scope of Work : a. Electrical System Modeling. b. Carrying out following power system studies, i. Short Circuit Study ii. Phase Fault Relay Setting and Relay Co-ordination iii. Earth Fault Relay Setting and Relay Co-ordination. c. Workout Unit Protection Setting for, i. 22 MW Generator ii MVA Transformer. Page 4 of 42

5 125.0 The Associated Cement Cos. Ltd., Lakheri Scope of Work includes carrying out, Power System Study for, a. 1 No.132 kv Grid line from RSEB. b. 1 No. 11 kv, 25 MW Steam Turbine Generator. c. 6.6 kv & 3.3 kv Switchgears & 415V distribution system. The scope includes, a. Modeling of Electrical System on ETAP software. b. Carrying out Short Circuit Studies. c. Working out Relay Settings for, i. Phase Fault and ii. Earth Fault Relays. d. Working out Unit Protection Setting for, i. Generator, ii. Transformers and iii. HT Motors Harsco India Metals Pvt. Ltd., Pen Arc Flash assessment study, a. Submission of Data Compilation Report. b. Carrying out Arc Flash assessment study for the Electrical distribution system. c. Submission of Typical Shock Hazard Labels Egyptian Propylene & Polypropylene Co., Cairo, Egypt Review of complete electrical system designed by UHDE Germany to improve the system reliability by preventing frequent tripping in a system consisting of, a. 220 kv Line. b. 2 x 80 MVA Transformers. c. 4 nos. major 11 kv Switchgears. Page 5 of 42

6 122.0 Essar Steel India Ltd., Dabuna Essar Oil Limited, Vadinar Scope of Work includes carrying out : a. Electrical System Modeling. b. Short Circuit study. c. Working out Phase and Earth Fault Relay Settings. d. Working out Unit Protection Settings for, i. Transformers and ii. Motors Root Cause Analysis for Power Disturbance by carrying out complete Power System Studies : Scope of work shall include, Carrying out Electrical Modeling. Submission of Summary result of following Power System Studies, a. Short Circuit Study b. Load Flow Study c. Voltage Dip Studies and d. Transient Stability Studies Carrying out Root cause analysis of Power Disturbances in the system Deepak Fertilisers and Petrochemicals Limited (DFPCL), Taloja, December Sterlite Industries Ltd., Tuticorin, December 2012 Working out Motor Protection Relay Setting for 2 nos. 720 kw HT Motors. Scope of Work includes : Analysis and finding out probable cause of 100 MVA, 220/11kV Transformer failure and providing recommendation. Page 6 of 42

7 118.0 CHEMAF S.P.R.L., (Usoke Plant) Democratic Republic of Congo, Lubumbashi June CHEMAF S.P.R.L., (Etoile Plant) Democratic Republic of Congo, Lubumbashi June 2012 Scope of work includes carrying out Load Flow Studies on ETAP software. Part I : Studies for 220 kv switchyard : Preparation of Single line diagram, designing basic ratings of equipment and Electrical system distribution. Study for selection of Distribution Voltage of 33 kv or 11 kv. Preparation and submission of purchase specification for the equipments. Technical tender analysis of vendor s offer. Carrying out Power System Studies: a. Load Flow b. Short Circuit and c. Relay Setting, relay co-ordination for phase fault and earth fault. Part II : Power System Study for New Process Plants : Define Transformer voltage ratio, Vector Group and % impedance. Carry out short circuit study to work out, a. Short Circuit rating of Switchgear and Neutral Grounding Method. b. Voltage dip studies for Motors. Carry out feasibility study for emergency transfer of power. Prepare purchase specification for Transformer and Motor. Page 7 of 42

8 116.0 Shadeed Iron and Steel L.L.C., Oman November 2011 Source : 220 kv OETC Grid supply. Distribution : 220 kv Switchyard, 33 kv, 6.6 kv Switchgear and 415V distribution system. a. Electrical system data base report for power system study modeling. b. Key single line diagram indicating protection system. Short Circuit Studies for, a. Phase Fault b. Earth Fault Relay Setting & Relay Coordination a. Phase over current relays b. Earth fault over current relays Unit protection settings for, a. Transformers b. MV Motors and LV Motors where motor protection relays are provided Petronet LNG Ltd., Bharuch (Gujarat) July 2011 Petronet System consists of, Sources : 2 nos. 220 kv DGVCL Grid Line, 5 nos., 7.7 MW Gas Turbine Generator. Distribution : 220 kv Switchyard, 11 kv, 6.6 kv Switchgear and 415V distribution system of Phase - 1 and phase - 2. Scope of Work : a. Engineering a Grid Islanding Scheme (GIS) b. Engineering a Load Shedding Scheme (LSS) for, i. MW based Load Shedding ii. Back up under frequency based Load Shedding iii. Maximum demand based Load Shedding Page 8 of 42

9 c. Engineer a Governor and AVR mode changeover scheme, wherever feasible. d. Preparation and submission of GIS-LSS Panel / Component specification. Carry out detail Transient Stability Study to identify the PLNG's electrical system critical clearance time under extreme operating condition. Work out settings of Grid Islanding and Load Shedding relay. (if any) Carry out detail engineering wherever required, a. Mounting of GIS components / panel b. Wiring modification OR c. Preparation of control cable schedules if any. d. Preparation of interconnection schedules if any HEG Limited, Bhopal Design and Providing Consultancy Services for System Study. Scope of work includes, Harmonics Filter Design for Capacitor Bank : a. i. Normal operating conditions of generation and grid supply. ii. With Grid isolated and furnaces in normal operation b. Carry out Harmonic Analysis and submit the report for the measurement carried out to identify the specific orders of harmonics, required to be mitigated. c. Based on the Harmonic Analysis report, carry out a Harmonic Filter design and submit functional specification of Harmonic filter components. Page 9 of 42

10 Event Sequence Recorder : a. Study and Identify the signals for, i. Digital input and output commands for fault indication & ii. Analogue input and output commands for parameter measurement. Submit the list of above Input, Output list. b. Prepare and submit purchase specification for a suitable event sequence recorder. c. Carry out technical tender analysis for maximum 4 nos. eligible ESR vendors and submit recommendations for purchase. d. Prepare and submit, engineering drawing for, i. ESR layout ii. ESR interconnection & iii. Control cable schedules for ESR. GIS & Load Flow Study for VAR Compensation : a. Electrical system modelling and submission of Key SLD based on the data provided by HEG and data compilation to perform further studies. The key SLD shall be prepared for the purpose of this study only. b. Engineer, i. Grid islanding scheme ii. Load shedding scheme for continuous parallel operation of TG sets with the grid. c. Carry out Load Flow studies : Based on the Load Flow study results, recommend the modes of TG set AVR for MVAR generation and operation philosophy of various Capacitor Banks. Page 10 of 42

11 d. Carry out Transient Stability study to derive the settings for various protection functions of only GIS & LSS scheme Hindustan Unilever Limited, Dapada June 2012 Scope of work included, Electrical system modeling and preparation of Key single line diagram indicating protection system. Short Circuit Studies for, a. Phase Fault b. Earth Fault Relay Setting & Relay Coordination a. Phase over current relays b. Earth fault over current relays Unit protection settings for a. Transformers b. Motors British Gas Exploration and Production India Ltd., Panna October 2011 Scope of Work : a. Site Visit and Data Collection b. Feasibility Studies for starting of important loads under Blackstart conditions. c. Hazard Analysis of the existing Blackstart equipment. d. Carry out detailed HAZID, HAZAN and Reliability, Availability, Maintainability studies. e. Voltage Dip Study f. Black start philosophy, sizing of various equipments and starting sequence British Gas Exploration and Production India Ltd., Tapti Scope of Work : a. Site Visit and Data Collection b. Feasibility Studies for starting of important loads under Page 11 of 42

12 October 2011 Blackstart conditions. c. Hazard Analysis of the existing Blackstart equipment. d. Carry out detailed HAZID, HAZAN and Reliability, Availability, Maintainability studies. e. Voltage Dip Study f. Black start philosophy, sizing of various equipments and starting sequence Eartha General Trading and Cont. Co. W.L.L., Kuwait December 2011 Selection of Current Transformer (6 Nos) for the differential protection of Recycle Gas Compressor Motor (C M) at KNPC Mina Abdulla Refinery. Scope of Work : a. Working out fault current calculation for this motor feeder considering 13.8 kv Switchgear as a source. b. Working out the specification of current transformer for proper performance of Motor differential relay (ANSI device 87M) by carrying out C.T. Sizing calculation Gujarat Fluorochemicals Ltd., Bharuch Consultancy Services for carrying out system studies for improving Flexibility, Reliability and Stability. Flexibility Studies : a. Preparation of Key Single Line Diagram. b. Load Flow, Short Circuit, Transient Stability (Studies with Fault Current Limiter). c. Detail engineer and procurement specification of Fault Current Limiter. Reliability Studies : a. Designing of GIS and LSS scheme. b. Preparation of GIS and LSS panel specification. Page 12 of 42

13 Stability Studies : a. Overall System Modeling. b. Short Circuit Study. c. Relay Setting and Relay Co-ordination. d. Working out unit protection settings for generators, transformers, HV motors, LV motors and outgoing power feeders Cairn Energy India Pty. Ltd. Barmer, Rajasthan BG Exploration and Production India Ltd., PANNA Platform Manikgarh Cement Ltd., Gadchandur Consultancy services for carrying out Relay setting and Relay Co-ordination study of Raageshwari Gas Terminal. The scope includes, a. Preparation of Key Single Line Diagram. b. Carrying out Short Circuit Study. c. Relay setting and Relay Co-ordination. d. Working out Unit Protection for Generator, Transformers, HV Motors, LV Motors and Outgoing Power Feeders. Power system study and Power option study for extra power of ESD Migration. The scope includes, a. Steady state analysis. b. Motor starting study. c. Short Circuit Study. d. Power system adequacy check. e. Cable sizing and cable schedule. Consultancy services for carrying out System study for selection of voltage level for distribution of power at New cement plant. Page 13 of 42

14 105.0 Ambuja Cement Ltd., Bhatapara Ultratech Cement Ltd. (TPP) Kovaya, Gujarat Petronet LNG Ltd., Dahej Consultancy services for carrying out Relay setting and Relay co-ordination study for Cement Line-1, Cement Line-2, TPP, 132 kv Grid and DGs. The scope includes, a. Preparation of Key Single Line Diagram. b. Carrying out Short Circuit Study. c. Relay setting and Relay co-ordination. d. Working out Unit Protection for Generator, Transformers, Tie Feeders, HV Motors, LV Motors and Outgoing Power Feeders. Consultancy services for carrying out Relay setting and Relay co-ordination study for various substations of Cement plant at Ultratech Cement Ltd., Kovaya unit. The scope includes a. Preparation of Key Single Line Diagram. b. Carrying out Short Circuit Study. c. Relay setting and Relay co-ordination. d. Working out Unit Protection for Generator, Transformers, Tie Feeders, HV Motors, LV Motors and Outgoing Power Feeders. Consultancy services for carrying out Relay setting and Relay co-ordination study for LNG terminal at Dahej. The scope includes, a. Preparation of Key Single Line Diagram. b. Carrying out Short Circuit Study. c. Relay setting and Relay co-ordination. d. Working out Unit Protection for Generator, Transformers, Tie Feeders, HV Motors, LV Motors and Outgoing Power Feeders. Page 14 of 42

15 102.0 Ultratech Cement Ltd. (TPP) Kovaya, Gujarat Ambuja Cement Ltd., Bhatapara CPP Indo Rama Synthetics (I) Ltd., Nagpur Jindal Steel & Power Ltd., Raigarh Consultancy services for Grid Islanding and Load shedding scheme for Ultratech Cement Ltd., Kovaya unit. The scope includes carrying out following activities. a. Carry out Load Flow Studies. b. Carry out Transient stability studies. c. Engineering a Grid Islanding and Load shedding scheme. d. Preparation of purchase specification for GIS and LSS panel. e. Review of Vendor drawings for GIS and LSS panel. f. Work out Relay setting for GIS and LSS scheme relays based on Transient Stability studies. The scope includes, Deputation of Sr. Technical Executive for analyzing trials taken on Governor and AVR. Consultancy Service for addition of 11 MW STG at Butibori, Nagpur. The scope includes, a. Preparation of Key Single Line Diagram. b. Short Circuit study. c. Load flow study. d. Transient stability study. e. Relay setting and Relay Co-ordination study. f. Unit Protection of 11 MW Generator. g. Grid Islanding and Load Shedding scheme. Our scope of work includes, a. Transient Stability Studies. Page 15 of 42

16 b. Detail engineering for Grid Islanding and Load Shedding scheme (GIS-LSS). c. Preparing GIS-LSS panel Specifications. d. Technical Tender analysis of vendors offer for Grid Islanding and Load Shedding panel. e. Review of vendor drawings of GIS-LSS panel. f. Preparing cable schedule and interconnection diagram for GIS-LSS panel Ultratech Cement Ltd., Kovaya 97.0 Jindal Steel & Power Ltd., Raigarh Checking the feasibility of providing the black start power supply to new TPP through 2 x 6 MW DG set at existing cement plant. This includes, a. Sizing the cables and the overhead lines, interconnecting DG set end and TPP auxiliary power supply. b. Sizing the transformer and its specification. c. Defining the grounding and earthing system. d. Designing the protection system for this black start link. e. Checking the feasibility of switching IN the largest motor on one DG set at TPP with max. running load of any one of unit auxiliary. Power System study for hookup of new EAF at proposed 220kV switchyard. a. Carry out Load flow study b. Carry out Transient stability study to calculate critical clearance time for fault in, i. New 220 kv switchyard bus ii. New 33 kv bus Page 16 of 42

17 c. Transient stability studies to identify voltage profile during switching IN and OFF of new EAF with five alternate rating. d. Transient stability study to check the voltage profile during momentary load of MLSM Ultratech Cement Ltd., Kovaya 95.0 Abu Dhabi Oil Refining Co. Takreer 94.0 BG Exploration and Production India Limited, Panna Relay Setting and Relay Co-ordination study for 4 x 23 MW Power plant electrical distribution system, from 220 kv GEB incomer at power plant up to 415 V MCC Incoming feeders. This includes, a. Preparation of key single line diagram with Data compilation report. b. Short Circuit Study. c. Relay Setting and Relay Co-ordination. d. Working out unit protection settings for, i. Generators. ii. Power Distribution transformers. iii. Tie feeders. iv. 11 varieties HT Motors. v. 220 kv and 66 kv line. vi. 220 kv switchyard protection. vii. LT Motors capacity higher than 90 KW. viii. PCC and MCC incomers. Our scope of work includes carrying out relay co-ordination study and provide relay setting schedule for electrical system of Abu Dhabi Oil Refinery Ruwais Sulphur Expansion Phase III project. Consultancy services for starting of zero flare Gas compressor for Panna field. Page 17 of 42

18 The scope includes, a. Preparation of wiring or control schematic drawings b. Relay setting and Motor starting study with soft starter Gujarat Ambuja Cements Ltd., Bhatapara. Consultancy services for Grid Islanding and Load shedding scheme for GACL Bhatapara unit. This scope includes carrying out following activities. a. Transient stability studies. b. Engineering load shedding scheme. c. Engineering grid islanding scheme. d. Work out back-up under frequency load shedding block. e. Work out Grid Islanding scheme relay setting. f. Work out load shedding scheme back up under frequency relay setting ACC Limited, Kymore. Our scope of work includes, carrying out power system studies for the electrical system. Our scope of work includes, a. Load flow studies. b. Transient stability studies. c. GIS and LSS settings ACC Limited, Kymore Our scope of work includes carrying out relay setting and relay co-ordination for 132 kv switchyard, 2 x 25 MW CPP, cement plant, The scope includes, a. Short Circuit study. b. Relay co-ordination study. c. Work out unit protection settings. Page 18 of 42

19 90.0 Indo Rama Synthetics (I) Ltd., Nagpur Emami Paper Mills Ltd., Orissa Consultancy Service for addition of 37.5 MW STG at Butibori, Nagpur. The scope includes, a. Checking feasibility for addition of new 37.5 MW STG and its power evacuation. b. Conceptualizing the electrical system through Single Line Diagram. c. Feasibility study for Power evacuation route. d. Load Flow study. e. Checking Feasibility of Power evacuation of 37.5 MW power plant. f. Short circuit study. g. Sizing and rating of cables, power transformers, CT, PT Switchgears. h. Billing and metering system for Import / Export of power. i. Checking layout feasibility. j. Estimating the requirement of earthing system. k. Evaluating the requirement of control, protection system. Power System Study for existing electrical distribution system for parallel operation of two TG sets (15 MW + 5 MW) and flexibility of re-distribution. This includes, a. Short circuit study results considering parallel operation of Grid + 15 MW T.G. Set + 5MW T.G.Set b. Load flow study results considering parallel operation of Grid + 15 MW T.G.Set + 5 MW T.G.Set. c. Relay Setting and Relay Co-ordination for parallel operation of Grid + 15MW T.G.Set + 5 MW T.G.Set. Page 19 of 42

20 88.0 Monnet Ispat & Energy Limited, Chhattisgarh Essar Oil Ltd., Jamnagar 86.0 Essar Oil Ltd., Jamnagar 85.0 Gujarat Fluoro Chemicals Ltd, Dahej Carrying out Power System Studies. This includes, a. Load flow study. b. Short circuit study. c. Transient stability, Voltage drop Calculation and Harmonic Study. d. Transformer Protection. Our scope of work, carrying out Analysis for failure of 33 kv Current Transformers. Carrying out Transient Stability studies, our scope of work includes, a. To check the behavior / survival of Generators b. To calculate and provide revised under frequency Load Shedding scheme and Grid Islanding scheme backup under frequency settings. Consultancy services for improving electrical system reliability and stability. This includes, a. Review of basic design of electrical system. b. Review of protective system, protection scheme and control logics. c. Carry out Power System Studies i. Load Flow study. ii. Short Circuit Study. iii. Relay setting and Relay co-ordination study. iv. Unit protection settings for Motor and Generator Protection relays d. Integration of new 11kV, 18 MW power plant and existing 11kV network (CPP + Grid). Page 20 of 42

21 e. Protection system design for continuous parallel operation of existing CPP with grid power. f. Transient Stability studies. g. Engineering of Grid Islanding scheme h. Engineering of Load Shedding scheme Associated Cement Cos. Ltd. Wadi Cement Works, Karnatka. (CPP) 83.0 Deepak Fertilizers and Petrochemicals Corp. Ltd. Taloja Relay co-ordination study for Existing plant, New plant and Captive power plant of ACC Wadi of 3 x 25 MW generation. This includes, a. Preparation of Single Line Diagram. b. Short Circuit Study. c. Relay setting and co-ordination study. a. Electrical system studies This includes, i. Load Flow Study ii. Short Circuit Study. iii. Motor starting iii. Load Flow study with new system additions. iv. Feasibility of system for various option. b. Grid Islanding and Load Shedding scheme. i. Transient Stability studies ii. Prepare GIS scheme iii. Prepare LSS scheme with both MW based and frequency based. iv. Prepare specification of GIS and LSS scheme equipments. v. Relay settings of various protective relays used for GIS and LSS. Page 21 of 42

22 82.0 Jindal Steel and Power Ltd. Raigarh (Chattisgarh) 81.0 Indo Rama Synthetics (I) Ltd., Nagpur Jindal Steel and Power Ltd., Raigarh Power system design engineering at Raigarh, Chattisgarh. This includes, a. Preparation of Key Single Line Diagram b. Carrying out Short Circuit Study. c. Relay setting and Relay Co-ordination Consultancy Service for Relay Setting, Relay Co-ordination and Grid Islanding & Load Shedding Scheme engineering for 2 x 15.0 MW Captive Co-generation Thermal Power Plant, 3 x 13.5 MW + 3 x 4 MW DG Power Plants and Grid System at our Plant Butibori, Nagpur. The scope includes, a. Relay Setting and Relay Co-ordination study for electrical distribution system. i. Short Circuit study. ii. Protection Review. iii. Relay Setting and Relay Co-ordination. iv. Working out Unit Protection Settings. b. Grid Islanding and Load Shedding Scheme. i. Load flow study. ii. Transient stability study. iii. Engineering of Grid Islanding and Load Shedding Scheme. iv. Working out Relay setting for Grid islanding and Load Shedding Scheme. Relay Setting and Relay Co-ordination study for RUBM plant and 148 Plate Mill plant electrical distribution system. This includes, a. Short Circuit Study. Page 22 of 42

23 b. Relay Co-ordination study. c. Working out Unit Protection Settings BG Exploration and Production India Limited., Mumbai 78.0 Jindal Steel and Power Ltd., Raigarh 77.0 ESSAR Steel Ltd., Vishakhapatnam 76.0 Jindal Steel and Power Ltd., Raigarh 75.0 Jindal Steel and Power Ltd. Raigarh, Chattisgarh Relay Setting and Co-ordination study for electrical system of Panna Platform including. a. Short Circuit Study. b. Relay Setting and Co-ordination. Study of dynamic switching of HT Motors. Study of Capacitor banks & Unit Protections, a. Carrying out Load Flow Studies for sizing of Capacitor banks and identifying their locations b. Working out Unit Protection Settings for HT and LT motors. Feasibility Study of Power evacuation from 4 x 135 MW Captive Power Plant at Dongamohua, Tamara, Dist : Raigarh. This includes, a. Feasibility Study for evacuation of power from 4 x 135 MW Captive Power Plant at Dongamohua, Tamnar, Raigarh to JSPL New switchyard for 3 MT steel plant. b. Load flow study & Short circuit study for Option-1, i.e. for 4 x 135 MW CPP to JPL 220 kv switchyard and JPL 220 kv switchyard to JSPL new 220 kv switchyard. c. Load flow study & Short circuit study for Option-2, i.e. for 4 x 135 MW CPP to new 220 kv switchyard at JPSL. Power System Study for the electrical system including : a. Load flow study b. Short circuit study Page 23 of 42

24 c. Transient stability study in case of, i. Tripping of 220kV incoming CSEB lines at JSPL. ii. Tripping of 250MW TG set at JPL. d. Engineering an islanding scheme. e. Engineering a load shedding scheme under following conditions, i. Tripping of 220kV CSEB lines at JSPL. ii. Tripping of 250MW set at JPL. f. Working out the settings for islanding relays and the load shedding blocks, for following conditions, i. Tripping of 220kV CSEB lines at JSPL. ii. Tripping of 250MW set at JPL. g. Working out over current and earth fault relay settings for, i. 220kV line from JPL to OPJIP. ii. 220kV line from OPJIP to JSPL. iii. 220kV interconnection, i.e. power evacuation route from receipt of JPL power at JSPL to CSEB lines. iv. JSPL TG sets power evacuation route up to 220kV bus. h. Working out voltage and frequency relay settings for following, i. 220kV line from JPL to OPJIP. ii. 220kV line from OPJIP to JSPL. iii. 220kV interconnection, i.e. power evacuation route from receipt of JPL power at JSPL to CSEB lines. iv.jspl TG sets power evacuation route up to 220kV bus. Page 24 of 42

25 74.0 PT Indorama Tbk (Polyester). Indonesia a. Power system studies. This includes, i. Load Flow Study ii. Short Circuit Study. iii. Fault investigation and disturbance analysis for a cable fault of 6.3kV tie feeder to 6.3 kv SPG 2/3 switchgear. iv. Power supply distribution and modification. b. Relay setting and co-ordination 73.0 Essar Steel Ltd. Vizag. Power system design engineering at Vizag (A.P.). This includes, carrying out a. Load Flow Studies for sizing of capacitor banks and identifying their locations. b. Working out Unit Protection settings for HT and LT motors PT. Indorama Synthetics Tbk, Polyester Division, Indonesia GRASIM INDUSTRIES LTD, (CHEMICAL DIVISION.), Nagda 70.0 Jindal Stainless Ltd. Jajpur, Orissa Deputation of Sr. Executive to site occurrence analysis. This includes carrying out data collection, review, analysis and investigation and submission of detail analysis report. Power System Study for the electrical system including : a. Load Flow Study b. Short Circuit Study c. Relay Setting and Relay Co-ordination Study Power System Study for the electrical system including : a. Prepare and submit key single line diagram (220 kv) relevant to the protection system for the following two options: i. Augmentation of existing yard keeping the 220 kv switchyard at the original position and Page 25 of 42

26 ii. Construction of new 220 kv switchyard at suitable location. b. Carry out the load flow study to identify the basic rating of the equipments and to check the feasibility of the two options technically and commercially. c. Work out Voltage & Frequency profile at load centers for the two options under i. Steady state condition & ii. Dynamic condition of the load. d. Carry out Short circuit study for three phase faults and phase to earth faults for the limited system under study. e. Define basic rating of the major equipments such as : i. Transformers ii. Cables f. Examine suitability of equipments already in service from view point of current carrying and short circuit withstand capacity. g. Stability studies to be carried out for following conditions: i. Load flow studies for different grid and captive generators operating conditions. ii. The effect of dynamic loads of SAF, EAF and rolling mills on the grid and Captive generators under different operating conditions. iii. The operations of the plant with / without GRID and with different numbers of captive generators under different operation condition of the plant. h. Carrying out following power system studies to develop the application of Grid islanding scheme (GIS) and load Page 26 of 42

27 shedding scheme (LSS). i. Transient stability study. ii. Study to evaluate critical clearance time for fault at 220 kv Gridco Bus, 33 kv MRSS Bus and other 33 / 6.6 kv bus. i. Engineer a Grid islanding scheme for isolating the inhouse Captive Power Plant from disturbance in Gridco. j. Engineer a Load Shedding Scheme, to ensure the survival of CPP on survived (balance) load. This load Shedding Scheme shall be PLC based OR back up under frequency based or both. k. Prepare and submit, purchase specification for GIS and LSS panel. Assist JSL in scrutinizing the offers received from Vendors technically. Forward the recommendation for selected vendor after obtaining various clarifications from vendor. l. Review of vendor drawings for GIS and LSS panel m. Relay setting for GIS and LSS scheme relays and relay setting and co-ordination for the equipment on power evacuation route 69.0 Kamal Engineering Consultants, Dubai CAIRNS ENERGY INDIA PTY LIMITED, SURAT Carrying out Relay Setting, Relay Co-ordination and harmonic analysis for District Cooling plant project. Restricted Neutral Earthing study. This includes, a. Design the Grounding arrangement for 415Vsystem. b. Review of existing electrical equipment in the electrical system for satisfactory operation in conjunction with the modified earthing system. Page 27 of 42

28 c. Define the design parameters and detailed technical specifications for Neutral Grounding Resistors for procurement and installation. d. Design of protective relaying system with specification of equipment such as current transformers, potential transformers, protection relays. e. Relay Setting and Relay Co-ordination for existing protective relays JINDAL STEEL & POWER LTD., Raigarh 66.0 CHEMAF S.P.R.L., (Republic of Congo), Africa 65.0 The Associated Cement Companies Ltd. Kymore Cement Works, M.P. Study of dynamic switching of HT Motors. Feasibility study of Load Flow, Short Circuit and Relay Coordination of existing Plant electrical distribution system and upgrading the same with upcoming new requirements/ projects. Power System Study for the electrical system including : a. Relay Setting, Relay Co-ordination and Unit Protection settings of New 25 MW captive power plant and its auxiliaries. b. Review of synchronizing scheme of New 25 MW captive power plant and its inter-connection with existing electrical system. c. Relay Setting for the emergency Power supply to NEW 25 MW CPP. d. Review of Grounding system of old CPP, existing 25 MW CPP, new 25 MW CPP, power distribution transformers and load centers. e. Relay Setting and Relay Co-ordination of entire electrical system with new operating conditions. f. Study of lightning arrestor installation throughout plant. g. Design of Load Shedding Scheme. Page 28 of 42

29 64.0 Essar Steel Limited, Vishakhapatnam 63.0 Ambuja Cement Ltd. Bhatapara, Raipur Chattisgarh. (CPP) 62.0 Sterlite Industries (I) Ltd., Tuticorin, Tamil Nadu 61.0 PT Indorama Synthetics Tbk, Indonesia Power System Study for the electrical system including : a. Short circuit study. b. Relay Co-ordination study. c. Unit protection relay settings for Generators, Transformers and Motors of CPP. d. Grid Islanding Scheme (GIS) and Load Shedding Scheme (LSS). This includes, i. Transient stability study. ii. Study to evaluate critical clearance time for fault at 132 kv APSEB Bus, 6.6 kv Bus and 10.5 kv CPP Bus. iii. Load flow study. iv. Engineering Grid Islanding Scheme. v. Engineering Load Shedding Scheme. Rationalization of Power System (Neutral Grounding) at Bhatapara. Load flow study involving Generator and generator transformer vis-à-vis power evacuation to specify the basic parameters of generator transformer. Power System Study for the electrical system including : a. Short circuit study. b. Relay Setting and Co-ordination of 2 X 30 MW Power Plant. c. Unit protection settings d. Transient Stability Studies. e. Design Engineering of Grid Islanding Scheme (GIS) and Load Shedding Scheme (LSS). Page 29 of 42

30 60.0 Emami Paper Mills Ltd., Balasore, Orissa 59.0 Harihar Polyfibres Ltd., Harihar (Karnataka) 58.0 Essar Oil Ltd., Jamnagar Power System Study for the electrical system including : a. Load flow, stability and motor starting study. b. Short circuit and Relay Co-ordination study. c. Unit protection relay settings for Generators, Transformers and HT Motors. d. Design, engineering of Grid Islanding (GIS), Load Shedding (LIS) scheme and related power system study for continuous parallel operation of T.G. with Grid supply. Power system study for electrical distribution system including : a. Load Flow Study b. Short Circuit Study. c. Relay Setting and co-ordination. d. Transient stability study. e. Design of PLC based Grid Islanding, Load Shedding scheme and backup under frequency, load-shedding scheme. Power System Study for the electrical system including : a. Basic Engineering of Grid Islanding and Load Shedding Scheme for isolating in house Captive Power Plant from disturbance in GEB grid. b. Engineering a Load Shedding Scheme to operate after successful Grid Islanding Scheme to ensure survival of Captive Power Plant on balance load. c. Prepare and Submit purchase specification for GIS and LSS panel. Page 30 of 42

31 d. Technical scrutinies of offers received from vendors and submit purchase recommendation. e. Carry out Transient Stability Studies to evaluate Critical Clearing Time (CCT). f. Review of Vendor drawings for GIS and LSS panel. g. Relay setting for GIS and LSS scheme relay Indian Farmers Fertiliser Copoperative Ltd., Paradeep Unit, Orissa 56.0 The Associated Cement Companies Ltd. Kymore Cement Works, M.P BG Exploration and Production India Limited., Mumbai 54.0 Associated Cement Cos. Ltd. Chanda Cement Works, Chandrapur, Maharashtra. Study of Existing system control scheme for Tripping of Generator Breakers & Turbine under various conditions of Fault. Relay Co-ordination Study for 8 MVA Transformer and Quarry Electrical System including, a. Preparation of Key single line drawings indicating the protection system. b. Short circuit study and Relay Setting Co-ordination. c. Identifying lacunas in existing protection system and recommendation to overcome them. d. Unit Protection Setting. Power system study for electrical system of Tapti Platform including. a. Short Circuit Study. b. Relay Setting and Co-ordination. c. Unit Protection Settings. Power system study for electrical distribution system including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit Protection. Page 31 of 42

32 53.0 Ultra Tech Cement Ltd. Gujarat Cement Works, Amreli, Gujarat. (TPP) 52.0 Hindustan Lever Ltd., Sewri (Mumbai) 51.0 Joint Operations, Wafra Kuwait through Kuwait Controls Co Kuwait National Petroleum Co., Kuwait, through House of Trade Co. Power system study for old STG + GTG electrical distribution system including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Transient stability study. d. Design of PLC based Grid Islanding, Load Shedding scheme and backup under frequency, load shedding scheme. Power system study for electrical distribution system including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit protection for transformer. Power system study for 3.3kV, 11kV and downstream distribution system of Joint operation, Wafra including : a. Load Flow Studies b. Short Circuit Study. c. Relay Setting and co-ordination. d. Transmission Line Sag Calculation. Power system study for electrical distribution system of 3Nos. Frequency Converter Units, 13.8kV, 2.4kV and 480V distribution system at Mina Abdulla Refinery including : a. Short Circuit Study. b. Relay setting and co-ordination. c. Unit protection settings for Synchronous Motor, Synchronous Generator, Transformers, HT and LT Motors. Page 32 of 42

33 49.0 IPCL Baroda 48.0 Gujarat Ambuja Cement Ltd. Bathinda, Punjab Fiji Electricity Authority, Fiji Island Joint Operations - through Heavy Engineering Industries and Shipbuilding Co Hindustan Lever Ltd., Sumerpur 44.0 Sterlite Industries Ltd., Tuticorin Power system study for electrical distribution system for 6.6kV switchgear replacement including : a. Relay setting and co-ordination. b. Unit protection for Motors. Power system study for electrical distribution system including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit protections for transformer, motor. Our scope of work includes Power System study of Sabeto Substation electrical system including, a. Load flow study. b. Short circuit study. c. Relay setting and co-ordination. d. Unit protection settings of 33kV lines, transformers etc. Power system study for 34.5 kv, 4.16 kv and 0.48 kv distribution system including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit protections for transformer, H.T. Motors. Power system study for electrical distribution including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit protections for transformer, generator. Power system study for electrical distribution including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit protections for generators, transformers. Page 33 of 42

34 43.0 Madras Aluminium Company Ltd., Mettur 42.0 Hindalco Industries Ltd., Dahej 41.0 Grasim Industries Ltd., Nagda 40.0 Hindalco Industries Ltd., Dahej Power system study for electrical distribution system based on enhanced generating capacity, this includes: a. Transient stability study of the electrical system b. Fault level calculation study, from 110kV up to MCC c. Relay setting and relay co-ordination from 110kV up to MCC d. Unit Protection for Generators, Transformers. e. Study of electrical interlocks for plant electrical system. f. Review battery banks capacity and D.C. distribution system. g. Review of earthing and grounding system emergency power source system. h. Grid Islanding and under frequency load shedding scheme. Feasibility Study for Islanded Operation of 60 MW TG set Study of effect on entire electrical distribution system due to additional MW TG set including, a. Short Circuit Studies b. Relay setting and co-ordination c. Unit Protection for Generators, Transformers Power System Study for electrical distribution system of Copper-1 & 2 system including : a. Short Circuit Study b. Relay Setting and Co-ordination c. Design of PLC based Grid Islanding and Load Shedding Scheme d. Design of Interlocking Scheme of 11 KV Incomer and Bus coupler feeders e. Generator Protection Relay Settings. Page 34 of 42

35 39.0 Hindalco Industries Ltd., Dahej 38.0 Hindalco industries Ltd., Dahej 37.0 Oswal Chemicals and Fertilizers Limited, Paradeep - Orissa 36.0 Hindustan Lever Ltd., Daman 35.0 Hindalco industries Ltd., Dahej 34.0 Hindustan Lever Limited, Nashik 33.0 Hindustan Lever Limited, Andheri, Mumbai 32.0 The Associated Cement Companies Ltd. Jamul Cement Works, Chattisgarh. Feasibility Study for starting of 3 Nos 7.75 MW motors Feasibility Study for starting of 2 Nos 4 MW motors Working out Motor Protection Relay Settings for 6.6 kv Motors Power System Study for electrical distribution system including, a. Short Circuit Studies b. Relay setting and co-ordination Detail engineering for hookup of Oxygen plant electrical system with existing MRSS system. Power System Study for electrical distribution system including : a. Short Circuit Studies b. Relay setting and co-ordination c. Unit Protection Studies. Power System Study for electrical distribution system including : a. Short Circuit Studies b. Relay setting and co-ordination c. Unit Protection Studies. Power System Study for electrical distribution system including : a. Short Circuit Study b. Relay Setting and Co-ordination c. Work out Unit Protection Settings of Transformer, HT Motors and Generator Protection Relays. Page 35 of 42

36 31.0 The Associated Cement Companies Ltd. Kymore Cement Works, M.P Hindustan Lever Limited, Andheri - Mumbai 29.0 Schenectady Herdillia Limited, Navi Mumbai 28.0 Ambuja Cement Eastern Limited. Rawan, Chattisgarh. (CPP) 27.0 The Associated Cement Cos. Ltd, Madukarai Cement Works, Coimbatore.. (CPP) Power System Study of electrical distribution system including : a. Short Circuit Study b. Relay Setting and Co-ordination c. Work out Unit Protection Settings of Transformer, HT Motors and Generator Protection Relays. a. Preparation of detail Single Line Diagram of 11kV and 415 V electrical distribution system. b. Electrical system safety audit from the view point of, Electrical system adequacy from operation view point. equipments Review of installed / supplied and in operation. Compliance of statutory requirements. Electrical System study of entire electrical distribution system including a. Short Circuit studies b. Relay settings and Relay co-ordination c. Unit protection review and settings Electrical System study for MW CPP electrical distribution system including a. Short Circuit studies b. Relay settings and Relay co-ordination c. Unit protection review and settings Power System study of electrical distribution system including a. Short Circuit studies b. Relay settings and Relay co-ordination c. Unit protection review and settings Page 36 of 42

37 26.0 ESSAR Steel Limited, Hazira 25.0 Steel Authority of India Limited, Rourkela 24.0 Ruchi Soya Industries Ltd., Indore 23.0 Atul Ltd., Valsad System study of electrical system of HBI Plant, including: a. Short Circuit Study & Relay Setting Relay Co-ordination b. Generator protection Relay Setting for 20 MW GTG and 10 MW STG c. Review of Class A-B-C trip logics of 20 MW GTG and 10 MW STG d. Transformer Unit protection relay settings for 135 MVA 220 / 33 kv and 100 MVA 220 / 33 kv Transformers. Electrical System study of entire electrical distribution system including a. Short Circuit studies b. Relay settings and Relay co-ordination c. Voltage Dip Studies d. Stability Studies e. Design of Grid islanding and load Shedding scheme. f. Load flow studies g. Unit protection review and settings h. Auto Changeover Scheme i. Mesh Distribution System j. Review of Neutral Grounding and Protection System Feasibility study for 7.5 MW co-generation power plant. Electrical System study of entire electrical distribution system including a. Relay setting, Relay co-ordination of existing system. b. Modifications of Grid Islanding and Load shedding scheme due to change of operating mode. Page 37 of 42

38 22.0 Thirumalai Chemicals Ltd., Ranipet 21.0 The Associated Cement Cos. Ltd., Chaibasa Cement Works, West Singhbhum, Bihar. (CPP) 20.0 Gujarat Alkalies & Chemicals Ltd., Dahej 19.0 J.K. Tyres Ltd., Rajasthan Electrical System study of entire electrical distribution system including, a. System studies including, b. Short circuit studies. c. Review of existing protection system. d. Working out new relay setting and co-ordination. e. Recommendation to improve reliability of the system Indian Aluminium Co. Ltd., Taloja 17.0 Century Enka, Pune 16.0 Hindustan Motors Ltd., Pithampur 15.0 Grasim Industries Ltd., Nagda Electrical System study of entire electrical distribution system including, a. Short Circuit Studies. b. Relay setting and co-ordination. c. Unit Protection for Generators, Transformers. Page 38 of 42

39 14.0 Indian Dyestuff Industries Ltd., Ranoli 13.0 National Organic Chemicals Industries Ltd. Thane 12.0 Hindalco Industries Ltd., Dahej 11.0 Reliance Power Ltd., Jamnagar 10.0 Larsen & Toubro Ltd Hirmi Cement Works, Raipur, M.P. (CPP) 9.0 Hindustan Lever Ltd., Andheri Unit, Mumbai 8.0 Grasim Industries Ltd. Grasilene & Harihar Polyfiber, Karnataka Electrical System study of entire electrical distribution system including, a. Reliability Improvement : i. Review & detail engineering and rectification for existing electrical system distribution controls and protection. ii. Revamping of existing system including Replacement of existing controls protective gears. b. Short Circuit Studies. c. Relay setting and co-ordination of electrical distribution system. Review of existing electrical protective system. Short Circuit Study, Relay Setting and Relay Co-ordination, Unit Protection for Transformer, Generator. GEB Grid System Load Flow Study to identify advantages of 500 MW Power Evacuation by Reliance Ind. Ltd., Jamnagar. Power System Studies for 30 MW CPP alternate mode of operation within system parameters. Short circuit Studies, Relay Setting and Relay Co-ordination Studies. Complete Electrical System Study including, a. Load Flow studies. b. Short circuit studies. c. Grid islanding and under frequency load shedding Page 39 of 42

40 scheme and implementation. d. Relay setting and Relay Co-ordination. e. Voltage Dip studies. 7.0 Associated Cement Co. Ltd., Lakheri, Rajasthan 6.0 Gujarat State Fertilizers and Chemicals Ltd., Vadodara 5.0 Hindustan Petroleum Corpn. Ltd., Mumbai Power system study including Stability, Grid islanding scheme and under frequency load shedding scheme. Study for continuous parallel operation of power plant with RSEB grid. Study of a large electrical system with 5 Nos. 66KV, Incoming line from GEB, approx. 30 Nos. H. T. Substations, 5 Nos. Generators with Generator Transformers including : a. Load Flow Studies. b. Short Circuit Studies. c. Relay Setting and Co-ordination. d. Recommendations for systems for reliability improvement e.g. replacement of E. R. make relays by E. E. make relays at Co-generation Phase - II. a. System Study for Fuels Refinery and Lube Refinery including : i. Load Flow Studies ii. Short Circuit Studies iii. Relay Setting and Co-ordination of complete electrical system. b. Short Circuit Studies, Voltage Dip Studies and Relay Setting and Co-ordination for M. S. Maximisation, Electrical system as part of refinery expansion project consultancy services. Page 40 of 42

41 4.0 Atul Ltd., Balsar 3.0 Mukand Ltd., Thane 2.0 P. T. Polysindo Eka Perkasa, Indonesia a. Study, revamping and modernisation of existing electrical system including : i. Hook Up Study for New 18MW T. G. set with existing system. ii. Design and implementation of Grid Islanding Scheme. iii. Synchronising Scheme. iv. 66 kv Metering System. b. Short Circuit Studies. c. Relay setting and co-ordination for existing electrical system and new T. G. set 35MW Captive Power Plant electrical system feasibility study for operation of highly fluctuating load of furnaces. Electrical System Study including, a. Short Circuit Studies. b. Relay Setting and Co-ordination. c. Unit Protection Review and setting for : i. Transformer. ii. Generator. iii. Motor. iv. Capacitors. d. Voltage Dip Studies. 1.0 Birla Copper, Dahej Complete Electrical System Study including, a. Load flow studies. b. Short circuit studies. c. Grid islanding and under frequency load shedding schemes and implementation. d. Relay Setting and Relay Co-ordination. Page 41 of 42

42 e. Voltage Dip Studies. f. Blackstart of T. G. set. g. Engineering of the scheme for momentary paralleling of 6.6KV, 3.3KV and 415V incoming breakers. Page 42 of 42