POWER SYSTEM CONSULTANTS System Study to enhance Reliability of GFL 11 kV ... ratings of equipment and Electrical system distribution. ... 220 kV OETC Grid supply

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REFERENCE LIST : POWER SYSTEM STUDIES

Given below is a list of Power System Study Projects and related Scheme Engineering

Jobs executed by us:

SR. NO.

NAME OF THE COMPANY DETAILS OF JOB EXECUTED

132.0 Cairn Energy India Pty. Ltd., (MPT) Barmer, Rajasthan. Sept. 2014

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 In-

house 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.

131.0 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.

POWER-LINKER

GROUP

POWER SYSTEM CONSULTANTS

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SR. NO.


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.

130.0 Sesa Sterlite Limited Tuticorin Dec. 2013

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.

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SR. NO.


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.

129.0 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.

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SR. NO.


128.0 Deepak Fertilisers and Chemicals Limited, Taloja MIDC, Mumbai

Relay Setting calculation for 280 kW 3.3 kV HT Motor.

127.0 Gujarat Fluoro Chemicals Ltd., Dahej

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.

126.0 Kisanveer Satara SSKL, Bhuinj.

Relay Setting and Relay co-ordination study of 22 MW Co-

gen 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. 27.5 MVA Transformer.

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SR. NO.


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.

124.0 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.

123.0 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.

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122.0 Essar Steel India Ltd.,Dabuna

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

121.0 Essar Oil Limited, Vadinar

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.

120.0 Deepak Fertilisers and Petrochemicals Limited (DFPCL), Taloja, December 2012

Working out Motor Protection Relay Setting for 2 nos.

720 kW HT Motors.

119.0 Sterlite Industries Ltd., Tuticorin, December 2012

Scope of Work includes :

Analysis and finding out probable cause of 100 MVA,

220/11kV Transformer failure and providing

recommendation.

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SR. NO.


118.0 CHEMAF S.P.R.L., (Usoke Plant) Democratic Republic of Congo, Lubumbashi June 2012

Scope of work includes carrying out Load Flow Studies on

ETAP software.

117.0 CHEMAF S.P.R.L., (Etoile Plant) Democratic Republic of Congo, Lubumbashi June 2012

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.

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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.

115.0 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

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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.

114.0 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.

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SR. NO.


･ 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.

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d. Carry out Transient Stability study to derive the

settings for various protection functions of only GIS &

LSS scheme.

113.0 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.

112.0 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.

111.0 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

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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.

110.0 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-02-106M)

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.

109.0 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.

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･ 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.

108.0 Cairn Energy India Pty. Ltd. Barmer, Rajasthan

Consultancy services for carrying out Relay setting and

Relay Co-ordination study of Raageshwari Gas Terminal.

The scope includes,


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.

107.0 BG Exploration and Production India Ltd., PANNA Platform

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.

106.0 Manikgarh Cement Ltd., Gadchandur

Consultancy services for carrying out System study for

selection of voltage level for distribution of power at New

cement plant.

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SR. NO.


105.0 Ambuja Cement Ltd., Bhatapara


Relay co-ordination study for Cement Line-1, Cement

Line-2, TPP, 132 kV Grid and DGs.

The scope includes,



c. Relay setting and Relay co-ordination.


Transformers, Tie Feeders, HV Motors, LV Motors and

Outgoing Power Feeders.

104.0 Ultratech Cement Ltd. (TPP) Kovaya, Gujarat


Relay co-ordination study for various substations of Cement

plant at Ultratech Cement Ltd., Kovaya unit.

The scope includes







103.0 Petronet LNG Ltd., Dahej


Relay co-ordination study for LNG terminal at Dahej.

The scope includes,







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102.0 Ultratech Cement Ltd. (TPP) Kovaya, Gujarat

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.

101.0 Ambuja Cement Ltd., Bhatapara CPP

The scope includes,

Deputation of Sr. Technical Executive for analyzing trials

taken on Governor and AVR.

100.0 Indo Rama Synthetics (I) Ltd., Nagpur.

Consultancy Service for addition of 11 MW STG at Butibori,

Nagpur.

The scope includes,


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.

99.0 Jindal Steel & Power Ltd., Raigarh

Our scope of work includes,

a. Transient Stability Studies.

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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.

98.0 Ultratech Cement Ltd., Kovaya

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.

97.0 Jindal Steel & Power Ltd., Raigarh

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

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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.

96.0 Ultratech Cement Ltd., Kovaya

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.


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.

95.0 Abu Dhabi Oil Refining Co. Takreer

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.

94.0 BG Exploration and Production India Limited, Panna

Consultancy services for starting of zero flare Gas

compressor for Panna field.

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The scope includes,

a. Preparation of wiring or control schematic drawings

b. Relay setting and Motor starting study with soft starter.

93.0 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.

92.0 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.

91.0 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.

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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.

89.0 Emami Paper Mills Ltd., Orissa

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.

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88.0 Monnet Ispat & Energy Limited, Chhattisgarh.

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.

87.0 Essar Oil Ltd., Jamnagar

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.

85.0 Gujarat Fluoro Chemicals Ltd, Dahej

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).

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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.

84.0 Associated Cement Cos. Ltd. Wadi Cement Works, Karnatka. (CPP)

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.


c. Relay setting and co-ordination study.

83.0 Deepak Fertilizers and Petrochemicals Corp. Ltd. Taloja

a. Electrical system studies This includes,

i. Load Flow 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.

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82.0 Jindal Steel and Power Ltd. Raigarh (Chattisgarh)

Power system design engineering at Raigarh, Chattisgarh.

This includes,

a. Preparation of Key Single Line Diagram


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.

80.0 Jindal Steel and Power Ltd., Raigarh

Relay Setting and Relay Co-ordination study for RUBM plant

and 148” Plate Mill plant electrical distribution system. This

includes,

a. Short Circuit Study.

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b. Relay Co-ordination study.

c. Working out Unit Protection Settings.

79.0 BG Exploration and Production India Limited., Mumbai

Relay Setting and Co-ordination study for electrical system

of Panna Platform including.


b. Relay Setting and Co-ordination.


Study of dynamic switching of HT Motors.

77.0 ESSAR Steel Ltd., Vishakhapatnam

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.

75.0 Jindal Steel and Power Ltd. Raigarh, Chattisgarh

Power System Study for the electrical system including :

a. Load flow study

b. Short circuit study

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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 25 of 42

SR. NO.


74.0 PT Indorama Tbk (Polyester). Indonesia

a. Power system studies. This includes,

i. Load Flow 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.

72.0 PT. Indorama Synthetics Tbk, Polyester Division, Indonesia.

Deputation of Sr. Executive to site occurrence analysis.

This includes carrying out data collection, review, analysis

and investigation and submission of detail analysis report.

71.0 GRASIM INDUSTRIES LTD, (CHEMICAL DIVISION.), Nagda


a. Load Flow Study

b. Short Circuit Study

c. Relay Setting and Relay Co-ordination Study

70.0 Jindal Stainless Ltd. Jajpur, Orissa


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 26 of 42

SR. NO.


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 27 of 42

SR. NO.


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 in-

house 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.

Carrying out Relay Setting, Relay Co-ordination and

harmonic analysis for District Cooling plant project.

68.0 CAIRNS ENERGY INDIA PTY LIMITED, SURAT

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 28 of 42

SR. NO.


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.

67.0 JINDAL STEEL & POWER LTD., Raigarh

Study of dynamic switching of HT Motors.

66.0 CHEMAF S.P.R.L., (Republic of Congo), Africa

Feasibility study of Load Flow, Short Circuit and Relay Co-

ordination of existing Plant electrical distribution system

and upgrading the same with upcoming new requirements/

projects.

65.0 The Associated Cement Companies Ltd. Kymore Cement Works, M.P.


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 29 of 42

SR. NO.


64.0 Essar Steel Limited, Vishakhapatnam


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.

63.0 Ambuja Cement Ltd. Bhatapara, Raipur Chattisgarh. (CPP)

Rationalization of Power System (Neutral Grounding) at

Bhatapara.

62.0 Sterlite Industries (I) Ltd., Tuticorin, Tamil Nadu

Load flow study involving Generator and generator

transformer vis-à-vis power evacuation to specify the basic

parameters of generator transformer.

61.0 PT Indorama Synthetics Tbk, Indonesia


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 30 of 42

SR. NO.


60.0 Emami Paper Mills Ltd., Balasore, Orissa


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.

59.0 Harihar Polyfibres Ltd., Harihar (Karnataka)

Power system study for electrical distribution system

including :

a. Load Flow 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.



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 31 of 42

SR. NO.


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.

57.0 Indian Farmers Fertiliser Copoperative Ltd., Paradeep Unit, Orissa

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.

55.0 BG Exploration and Production India Limited., Mumbai

Power system study for electrical system of Tapti Platform

including.



c. Unit Protection Settings.

54.0 Associated Cement Cos. Ltd. Chanda Cement Works, Chandrapur, Maharashtra.


including :


b. Relay Setting and co-ordination.

c. Unit Protection.

Page 32 of 42

SR. NO.


53.0 Ultra Tech Cement Ltd. Gujarat Cement Works, Amreli, Gujarat. (TPP)

Power system study for old STG + GTG electrical

distribution system including :



c. Transient stability study.

d. Design of PLC based Grid Islanding, Load Shedding

scheme and backup under frequency, load shedding

scheme.

52.0 Hindustan Lever Ltd., Sewri (Mumbai)


including :



c. Unit protection for transformer.

51.0 Joint Operations, Wafra Kuwait through Kuwait Controls Co.

Power system study for 3.3kV, 11kV and downstream

distribution system of Joint operation, Wafra including :

a. Load Flow Studies


c. Relay Setting and co-ordination.

d. Transmission Line Sag Calculation.

50.0 Kuwait National Petroleum Co., Kuwait, through House of Trade Co.

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 :


b. Relay setting and co-ordination.

c. Unit protection settings for Synchronous Motor,

Synchronous Generator, Transformers, HT and LT

Motors.

Page 33 of 42

SR. NO.


49.0 IPCL Baroda

Power system study for electrical distribution system for

6.6kV switchgear replacement including :

a. Relay setting and co-ordination.

b. Unit protection for Motors.

48.0 Gujarat Ambuja Cement Ltd. Bathinda, Punjab.

Power system study for electrical distribution system including : a. Short Circuit Study. b. Relay Setting and co-ordination. c. Unit protections for transformer, motor.

47.0 Fiji Electricity Authority, Fiji Island.

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.

46.0 Joint Operations - through Heavy Engineering Industries and Shipbuilding Co.

Power system study for 34.5 kV, 4.16 kV and 0.48 kV

distribution system including :



c. Unit protections for transformer, H.T. Motors.

45.0 Hindustan Lever Ltd., Sumerpur

Power system study for electrical distribution including :



c. Unit protections for transformer, generator.

44.0 Sterlite Industries Ltd., Tuticorin

Power system study for electrical distribution including :



c. Unit protections for generators, transformers.

Page 34 of 42

SR. NO.


43.0 Madras Aluminium Company Ltd., Mettur

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.

42.0 Hindalco Industries Ltd., Dahej

Feasibility Study for Islanded Operation of 60 MW TG set

41.0 Grasim Industries Ltd., Nagda

Study of effect on entire electrical distribution system due

to additional 5.515 MW TG set including,

a. Short Circuit Studies


c. Unit Protection for Generators, Transformers


Power System Study for electrical distribution system of

Copper-1 & 2 system including :


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 35 of 42

SR. NO.



Feasibility Study for starting of 3 Nos 7.75 MW motors

38.0 Hindalco industries Ltd., Dahej

Feasibility Study for starting of 2 Nos 4 MW motors

37.0 Oswal Chemicals and Fertilizers Limited, Paradeep - Orissa

Working out Motor Protection Relay Settings for 6.6 kV

Motors

36.0 Hindustan Lever Ltd., Daman

Power System Study for electrical distribution system

including,



35.0 Hindalco industries Ltd., Dahej

Detail engineering for hookup of Oxygen plant electrical

system with existing MRSS system.

34.0 Hindustan Lever Limited, Nashik


including :



c. Unit Protection Studies.

33.0 Hindustan Lever Limited, Andheri, Mumbai


including :



c. Unit Protection Studies.

32.0 The Associated Cement Companies Ltd. Jamul Cement Works, Chattisgarh.


including :



c. Work out Unit Protection Settings of Transformer, HT

Motors and Generator Protection Relays.

Page 36 of 42

SR. NO.



Power System Study of electrical distribution system

including :



c. Work out Unit Protection Settings of Transformer, HT

Motors and Generator Protection Relays.

30.0 Hindustan Lever Limited, Andheri - Mumbai

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.

29.0 Schenectady Herdillia Limited, Navi Mumbai

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

28.0 Ambuja Cement Eastern Limited. Rawan, Chattisgarh. (CPP)

Electrical System study for 28.55 MW CPP electrical

distribution system including




27.0 The Associated Cement Cos. Ltd, Madukarai Cement Works, Coimbatore.. (CPP)

Power System study of electrical distribution system

including




Page 37 of 42

SR. NO.


26.0 ESSAR Steel Limited, Hazira

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.

25.0 Steel Authority of India Limited, Rourkela


system including



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

24.0 Ruchi Soya Industries Ltd., Indore

Feasibility study for 7.5 MW co-generation power plant.

23.0 Atul Ltd., Valsad


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 38 of 42

SR. NO.


22.0 Thirumalai Chemicals Ltd., Ranipet


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.

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

18.0 Indian Aluminium Co. Ltd., Taloja

17.0 Century Enka, Pune

16.0 Hindustan Motors Ltd., Pithampur

15.0 Grasim Industries Ltd., Nagda


system including,

a. Short Circuit Studies.

b. Relay setting and co-ordination.

c. Unit Protection for Generators, Transformers.

Page 39 of 42

SR. NO.


14.0 Indian Dyestuff Industries Ltd., Ranoli


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.


c. Relay setting and co-ordination of electrical distribution

system.

13.0 National Organic Chemicals Industries Ltd. Thane

Review of existing electrical protective system.


Short Circuit Study, Relay Setting and Relay Co-ordination,

Unit Protection for Transformer, Generator.

11.0 Reliance Power Ltd., Jamnagar

GEB Grid System Load Flow Study to identify advantages

of 500 MW Power Evacuation by Reliance Ind. Ltd.,

Jamnagar.

10.0 Larsen & Toubro Ltd Hirmi Cement Works, Raipur, M.P. (CPP)

Power System Studies for 30 MW CPP alternate mode of

operation within system parameters.

9.0 Hindustan Lever Ltd., Andheri Unit, Mumbai

Short circuit Studies, Relay Setting and Relay Co-ordination

Studies.

8.0 Grasim Industries Ltd. Grasilene & Harihar Polyfiber, Karnataka

Complete Electrical System Study including,

a. Load Flow studies.


c. Grid islanding and under frequency load shedding

Page 40 of 42

SR. NO.


scheme and implementation.

d. Relay setting and Relay Co-ordination.

e. Voltage Dip studies.

7.0 Associated Cement Co. Ltd., Lakheri, Rajasthan

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.

6.0 Gujarat State Fertilizers and Chemicals Ltd., Vadodara

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.


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.

5.0 Hindustan Petroleum Corpn. Ltd., Mumbai

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 41 of 42

SR. NO.


4.0 Atul Ltd., Balsar

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.


c. Relay setting and co-ordination for existing electrical

system and new T. G. set

3.0 Mukand Ltd., Thane

35MW Captive Power Plant electrical system feasibility

study for operation of highly fluctuating load of furnaces.

2.0 P. T. Polysindo Eka Perkasa, Indonesia

Electrical System Study including,

a. Short Circuit Studies.


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.


c. Grid islanding and under frequency load shedding

schemes and implementation.

d. Relay Setting and Relay Co-ordination.

Page 42 of 42

SR. NO.


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.

Documents

POWER SYSTEM CONSULTANTS System Study to enhance Reliability of GFL 11 kV ... ratings of equipment and Electrical system distribution. ... 220 kV OETC Grid supply