1. Introduction

Dr. Dawalibi, member of the Quebec Order of Engineers and senior member of the IEEE, has extensive experience in several fields related to power system and lightning protection grounding and safety, pipeline electrical interference and mitigation studies, and power equipment manufacturing and installation. Both a scientific researcher and an active industry consultant, he is well acquainted with the electrical power industry and the considerations involved when electrical power lines share right-of-way space with other utilities, such as gas transmission lines.

Dr. Dawalibi earned his B.Sc.A., Electrical Engineering degree at St. Joseph University, affiliated to University of Lyon, and his M.Sc.A. and Ph.D. Electrical Engineering degrees respectively, at École Polytechnique affiliated to University of Montreal. He worked successively for the Shawinigan Engineering Company Limited of Montreal (1972-1977) and Montel Inc. (Sprecher & Shuh: 1977-1978) on various projects involving power system and power equipment design and performance evaluation. During all this time, Dr. Dawalibi conducted research on the effects of soil on power networks and grounding, publishing in IEEE Transactions and contributing material to IEEE Power Society working groups. In his capacity as member of IEEE Working Group 78.1, Substation Grounding, he has made important contributions to ANSI/IEEE Standard 80, IEEE Guide for Safety in AC Substation Grounding, a basic reference on electrical safety used throughout North America by electrical utility engineers in the design of substation grounding.

In 1978, Dr. Dawalibi co-founded SES, a company which specializes in and conducts significant R&D work in the area of power system grounding and safety, electromagnetic inductive and conductive interference, and all other related electrical interaction effects between power systems, soil and proximate nonenergized metallic facilities. Since that time, he has been responsible for the engineering activities of the company, including the development of specialized software and internally funded as well as externally sponsored R&D projects. These include the development of the ECCAPP software package (analysis of electromagnetic and conductive coupling effects between transmission lines and nearby pipelines) during a research project sponsored jointly by the Electric Power Research Institute (EPRI) and the Pipeline Research Committee (PRC) of the American Gas Association (A.G.A.). Dr. Dawalibi has also given many engineering seminars to electrical and pipeline utility engineers and provided continuous telephone support to the engineering departments of a number of utilities in Canada, the United States, and Saudi Arabia.

2. Education

3. Grounding & Safety

1. Research

The following are representative externally-funded research projects performed under the direction of Dr. Dawalibi in this area: For a more complete list of projects visit the following link: Engineering Project


3.2 Industry Experience: Utilities and Private Companies

The following are a sample of the numerous projects conducted by Dr. Dawalibi in the field of grounding and safety:


3.3 Computer Software

Computer software developed by Dr. Dawalibi for power system grounding and safety studies include the following programs:

GATL (LINPA-RESIST-GTOWER-PATHS): Grounding Analysis of Transmission Lines. Software developed for EPRI.

AUTOGRID Analysis and automated design of small distribution substations. Software developed for CEA.

CDEGS
(Current Distribution, Electromagnetic interference, Grounding, & Soil structure analysis) expert software system consisting of several engineering application packages which are used to perform computerized analysis and design of electrical grounding systems, pipeline interference and mitigation analyses, and a variety of other engineering studies involving electrical power systems. This software consists of the following programs: RESAP, MALT, MALZ, TRALIN, SPLITS, HIFREQ, FCDIST, FFTSES, SICL, SIRPS. A partial list of users of this software is included in Section 6 of this document.
RESAP Analysis of soil resistivity measurements to obtain multi-layer soil models using algorithms based on convolution and filter theory.
MALT Analysis of AC and DC behaviour of grounding systems, cathodic protection studies.
TRALIN Transmission Line Performance : Interference, Line Parameters, and Electric Field Gradients.
HIFREQ Analysis of the high frequency and transient performance of a network of buried and above-ground conductors.
MALZ Analysis of electromagnetic fields radiated by leaky conductors located in a dispersive medium.
SPLITS Short-circuit and inductive interference analysis (originally developed for ARAMCO).
FCDIST Simplified short-circuit current distribution analysis.
FFTSES Fast Fourier Transform software.



3.4 Professional Societies & Standards Working Groups

Dr. Dawalibi has been an active member of the following IEEE committees and task forces:

In recent years, Dr. Dawalibi has contributed to making extensive revisions of IEEE Standards 80 and 81 and has written substantial new portions of these documents.

Dr. Dawalibi has participated actively in a variety of conferences dealing with electrical system grounding and safety, including the First International Symposium on Electrical Shock Safety Criteria, Toronto, Canada, September 7-9, 1983. Experts from electrical utilities, universities and research laboratories all over the world attended this symposium to discuss problems associated with electrical shock and safety. This event was sponsored by Ontario Hydro, the Electrical Power Research Institute and the Canadian Electrical Association.

Memberships:


4. Electromagnetic Compatibility Studies

4.1 Research

Dr. Dawalibi was project manager and principal investigator of a major 34-month joint EPRI/A.G.A. (Electric Power Research Institute/American Gas Association) Project RP742-4/PR-176-510 on transmission line electromagnetic inductive and conductive interference effects on nearby pipelines during power frequency faults; resulted in production of the ECCAPP software package and reference book on the subject.

During years of internally and externally funded research at SES, Dr. Dawalibi and his research team have developed state-of-the-art computer software permitting the accurate evaluation of interference effects of electrical power lines on pipelines. Some of these computer programs are listed below.


4.2 Industry Experience: Utilities and Private Companies

Dr. Dawalibi was principal investigator in the following representative projects undertaken by SES in which electrical interference in pipelines was a problem. For a more complete list, visit the following link: Engineering Projects

2013
Maine Power Reinforcement Project – 345 kV Transmission Line Impact Study – Burns & McDonnell (for Central Maine Power)
This is an analysis of the impact of (Phase I) and design of mitigation for (Phase II) a 247-mile 345 kV transmission line system and nearby 115 kV transmission lines on parallel pipelines (on the order of 125 miles) and railways (on the order of 10 short parallel sections or crossings). The impact of the new 345 kV lines on lower voltage transmission lines (115 kV and 37 kV), when de energized, is also being examined. This very large project has required custom automation of the CDEGS software package. Furthermore, it has required the development of a methodology to correct soil resistivity measurements for distortion introduced by bare metallic structures buried along the joint-use corridor.
2012
BP Skarv Swivel EMI Interference Study – BP/Aker Solutions
Evaluation of induced voltages and currents between power cables and other types of cabling associated with a floating production and offloading vessel.
2012
Greater Springfield Reliability Project – Electromagnetic Interference Study – Northeast Utilities Service Company
Impact analysis and mitigation, as required, for 5 natural gas pipelines and 4 railways following or intersecting a planned 35-mile 345 kV transmission line and several 115 kV lines, to be built as part of the New England East-West Solution (NEEWS).
2011
MBCR/MBTA Transit System – AC Interference Investigation – National Grid
In the spring of 2008, MBCR, the agency operating the commuter rail for the Massachusetts Bay Transportation Authority (“MBTA”), notified National Grid of problems it was experiencing with its control and signal circuitry in the vicinity of Massachusetts Electric Company’s Ward Hill Substation. MBCR/MBTA believed these problems were associated with the close proximity of the 23 kV circuits running alongside two sets of tracks abutting on the substation property. MBCR/MBTA personnel reported various equipment failures that allegedly have resulted in operational delays for commuter trains. The main purpose of the study is to determine the magnitude of the electromagnetic interference (EMI) levels caused by the local electric distribution circuits on the railway system, based on detailed realistic computer models, during worst case steady state (load) conditions and phase-to-ground fault conditions and, if needed, determine mitigation measures that would be the most effective in reducing any excessive induced voltages and currents to acceptable levels.
2008
NRI 345 kV Line/ M&N Pipeline – Spectra Energy
Verification of as-built mitigation for M&N Pipeline, which runs parallel to the soon to be energized NRI 345 kV line in the State of Maine, U.S.A. Computer modeling and field testing of mitigation. Test procedures were devised to verify the performance of mitigation during both fault and steady state conditions. This involved measurements at approximately 100 sites, including one compressor station, 5 valve sites, approximately 70 test stations, and 30 additional mitigation connection locations.
2007
Benton Lake Telephone Lines Harmonic Interference Analysis – Xcel Energy
Interference mitigation study involving proposed 27-mile 115 kV transmission line and parallel telephone cables. Study included comparing computer model predictions and measured induced voltages associated with 34.5 kV collector lines from wind farms, running parallel to telephone cables. Excellent agreement was obtained. Effective mitigation for influence of 115 kV line was designed.
2007
GMCW 345 kV Line NEV Study – American Transmission Company
Study of mitigation methods to reduce neutral-to-earth voltages induced in 34.5 kV distribution underbuild (length of 3400 ft) and 12 kV buried distribution cable (parallel length of 3.4 miles), along 345 kV/138 kV transmission line.
2007
Neutral to Remote Earth Voltage Analysis – Jefferson Transmission Line Project: Phase II – American Transmission Company
This and the two following studies were undertaken in order to investigate methods to reduce undesirable voltages that could be induced in distribution neutral conductors by parallel transmission lines. The Jefferson project involved a planned 16-mile 138 kV transmission line, with distribution circuits running parallel to it for a total distance of approximately 6.5 miles. An extensive parametric analysis was carried out in order to investigate the effects of shield wire interruptions, continuous counterpoise, separation distance between circuits, phasing, phase unbalance, ground resistances, use of buried distribution feeder versus underbuild, changes in distribution neutral size, transmission line cross-sectional configuration, installation of a supplementary underbuild shield wire and bonding of a buried cable’s concentric neutral to the transmission line shield wire.
2007
Neutral to Remote Earth Voltage Analysis – North Randolph – Fox Lake – North Beaver Dam Transmission Line - American Transmission Company
A 1-mile underbuilt section of a distribution feeder neutral was instrumented and approximately voltages and currents measured for 52 different energization and connection configurations, such as the following: with the transmission line energized and de-energized; with the overhead distribution feeder in service and with it replaced by a buried feeder; with the customer neutrals isolated and connected to the primary neutral; with the feeder neutral isolated and connected to the remainder of the distribution system; with the neutral connected to the static wire by means of a temporary jumper at each end of the feeder and without the jumper; with the transmission shield wire interrupted at each end of the feeder and continuous. Good agreement was obtained between the computer model and the field data.
2007
Neutral to Remote Earth Voltage Analysis – Duplainville Transmission Line Project – American Transmission Company
A 138 kV transmission line was energized with both zero and positive sequence 65 Hz currents and computer model predictions of induced neutral current and neutral-to-earth voltage were compared with those measured with a dynamic signal analyzer. Given the urban environment and unknown customer grounding, computer model predictions matched measured data quite well. New methods of measuring steel pole ground resistances were also tested.
2007
Glenbrook – Norwalk Electromagnetic Interference Study – Northeast Utilities Service Companies
This AC interference mitigation study involved an 8.8-mile, double-circuit, 115 kV, buried, solid dielectric cable line running parallel to an electrified railroad, gas pipelines, and water pipes. SES’s mandate was to investigate the electromagnetic interference caused by the proposed 115-kV underground cables during load and fault conditions and to design appropriate corrective measures. By building a comprehensive electromagnetic interference model, including the mitigative influence of metallic infrastructure in the surrounding suburban area, SES demonstrated that no corrective were required.
2006
Bethel-Norwalk Extended Electromagnetic Compatibility Analysis - NorthEast Utilities Service Company

Middleton-Norwalk Electromagnetic Interference Study - NorthEast Utilities Service Company & The United Illuminating Company

Sinistre de Pointe du Lac Suite à la Destruction d’une Conduite de Gaz par Interférence Electromagnétique - Gaz Metropolitan

Scoping Document for the Middleton to Norwalk Electromagnetic Interference Study - NorthEast Utilities & The United Illuminating Company

Progress Energy FGT Loop G Florida Rock Review
This project analyses the effect of the addition of a tap, an associated valve and a metering and regulating station, along with a substantial length of pipe to a large high pressure natural gas line subjected to ac interference.

It is known that AC interference along a large diameter natural gas main running parallel to high voltage transmission lines results in a pattern of pipe-to-soil voltages along the length of the pipeline, which are influenced by abrupt changes in magnetic field coupling between the overhead lines and the pipeline. These are typically brought about by deviations in the overhead line or pipeline routes, crossings between these, large load drops, fault occurrences, changes in static wire type, changes in soil resistivity, phase transpositions, and other such factors. On the other hand, the effects of taps and the associated aboveground structures at nearby metering stations, which can capture magnetic flux, while at the same time depressing pipeline ground resistance per unit length, have not been studied. The objective of this study is to examine the performance of a system with and without such interfering factors, assess the magnitude of the discontinuities that they can produce, and determine what remedies can be applied.
2005
NRI 345 kV Line/ M&N Pipeline Maine – New Brunswick
Project for Duke Energy and Bangor Hydro in collaboration with Corrpro Companies to study the influence of the proposed Northeast Reliability Interconnect (NRI) 345 kV transmission line on the existing Maritimes & Northeast (M&N) pipeline, throughout the proposed joint-use corridor, known as the “Consolidated Corridor Re-Route,” which runs for a distance of approximately 86 miles, from Orrington Substation, in the State of Maine, to the Canadian Border, near Baileyville, Maine. The mandate of the authors was to create detailed computer models of the interacting utilities and explore, in a rapid and approximate manner, by what practical means voltages transferred to the pipeline could be maintained within satisfactory limits, during anticipated worst case steady state and short-circuit conditions. This was achieved by creating a custom, automated version of the Right-of-Way Pro software package.
2005
Atlantic-Delmar 60/115 kV Transmission Line Electromagnetic Compatibility Analysis
As part of an AC interference study, prepared for Pacific Gas & Electric, between two 60 kV transmission lines and two railroad tracks, results from the Right-of-Way Pro and MultiFields software packages were compared and a parametric analysis was carried out. Induced voltages computed by the two software packages for similar models agreed reasonably well. However, the addition of nearby network of municipal water pipes and 12 kV distribution line neutrals in the HIFREQ model made it possible to demonstrate that induced voltages were significantly different than would otherwise have been expected: maximum variations of ±20% were observed between the two models, during worst case load conditions. For the parametric analysis, parameters such as ballast resistance, train position, train length, rail unbalance, track-connected equipment impedances, power line current unbalance, power line phase arrangement, and overhead ground wire connections were studied. It was found that for rail-to-rail voltages, the worst case ballast resistance is a function of the impedances of the track-connected equipment and does not occur, as intuition might have it, for the maximum ballast resistance. A new method of using an overhead ground wire to reduce AC interference during fault conditions, without a corresponding increase during load conditions, was developed.
2001
Salalah Gas Pipeline Project – Overhead Line / Pipe Parallelism Interference Effects and Mitigation Measures
AC mitigation design study carried out for Amran Establishment LLC/Dodsal & Co. LLC/Oman Gas Company SAOC. AC mitigation study involving two corridors shared by 132 kV circuits and a 24” gas pipeline, in Oman; total length of shared corridor is approximately 16 km.
2001
Woodward Mountain Wind Ranch AC Interference Study
AC mitigation design study carried out for Renewable Energy Systems. AC interference study of two 138 kV transmission lines connecting two 90 MVA substations to the West Texas power grid: a total length of approximately 11 miles of right-of-way and 8 pipelines.
2001
Suncor Millennium Project – Area 86 Extraction Grounding Study
AC mitigation design study carried out for SNC – LAVALIN Inc./SUNCOR. A new pipeline and extraction plant construction project associated with oil sands mining required a grounding study for 72 kV substations powering electric shovels and an AC interference mitigation study for pipelines running parallel to the 72 kV transmission lines. The safety requirements were quite stringent: limit the ground potential rise of all metallic structures associated with mining equipment to the ANSI/IEEE Standard 80 fibrillation threshold applicable for early spring conditions, with wet mud over frozen soil.
2000
Unbalance Study for Lockport-Lombard 345 kV and 138 kV Transmission Lines
AC mitigation design study carried out for ComEd. Projected heavy loading of 345 kV and 138 kV transmission lines sharing a common corridor would result in phase unbalance levels approaching fault tripping levels. An optimal phase transposition scheme was developed, minimizing phase unbalance with a minimal number of phase transpositions. New software was developed to allow this type of study to be performed very efficiently in future.
2000
Mitigation Review for Mokelumne Aqueduct No. 3 Seismic Upgrade and Underpass Construction
AC mitigation design study carried out for CH2M Hill Corp. SES had previously designed a mitigation system for the three Mokelumne Aqueducts in the Oakland, California area. It was recently decided to upgrade the supports of the largest aqueduct (an 88 inch diameter pipeline) to make it more resistant to earthquakes. Furthermore, it was decided to construct an underpass running beneath all three aqueducts. It therefore became necessary to evaluate how the associated displacement of the mitigation system would affect protection of the aqueducts from induced voltages due to an adjacent 500 kV transmission line; also, it was important to determine whether the underpass, made of reinforced concrete, would introduce electrical safety hazards of its own.
1999
PNGTS Pipeline Modeling Based on New Fault Data
AC mitigation design study carried out for Bechtel Corporation. Continuation of Project 315-00 performed during the period of April 1998 to July 1998. Investigation of effects of increased current levels on mitigation requirements. It was hoped that this would lead to further advances in mitigation design methods in the difficult soil conditions found in this area. The sponsor of this work, however, decided not to pursue the issue at this time, so only the initial work associated with predicting the interference levels associated with the increased current levels was performed.
1999
AC Mitigation Design Study for Town of Weir 10” Natural Gas Pipeline
AC mitigation design study carried out for Neel-Schaffer, Inc. Model the proposed 10” pipeline and nearby proposed 161 kV double-circuit transmission line connected to Red Hills facility in order to assist Neel-Schaffer in selecting an appropriate pipeline route. Two possible routes were provided to SES for a determination of what AC voltages would appear on the proposed pipeline for each route, during both maximum load and fault conditions on the transmission lines. Provided assistance in the selection of desirable soil resistivity measurement sites along the corridor; provided support in terms of equipment selection, measurement procedures, and review of the measurement data followed by feedback to the measurement crew (crew supplied by others). Interpreted the soil data and obtained an equivalent multilayer soil model for each measurement site.
1998
PNGTS Pipeline Mitigation Design Study
AC mitigation design study carried out for Bechtel Corporation. A 140-mile 24” natural gas line from Canada to the State of Maine, with two 12” laterals (total length of 16 miles) were modeled, along with over 20 transmission line circuits belonging to two utilities at voltages of 34.5 to 345 kV and 8 substations. Faults were automatically modeled at close intervals throughout the AC corridors.
1998
Mayakan Pipeline Mitigation Analysis
AC mitigation design support carried out for Bechtel Corporation and TransCanada Pipelines Ltd. A 700 km 24” natural gas pipeline in Mexico was modeled along with 15 transmission lines at voltages of 115 kV to 400 kV. By optimizing the design process and scrutinizing the design criteria, it was found that the length of gradient control wire required to ground the pipeline to achieve satisfactory AC interference levels could be reduced to approximately 1% of the total pipeline length, even though most of the pipeline was exposed to AC interference from the power lines.
1997
AC Mitigation Design Study for Hawiyah Gas Development Projects
AC mitigation design study carried out for Gulf Interstate Engineering Company (for Saudi Aramco). System under study comprised over 55 km of joint use corridor, shared alternately by 30” and 48” gas pipelines and 380 kV and 132 kV transmission lines. The transmission lines and gas pipelines were connected to power plants at the extremities of the joint use corridors. Foreign pipelines were modeled as well.
1996 EWEB McKenzie Substation Grounding System Analysis
Mitigation design study for water pipelines and associated wells in close proximity to 230 kV/115 kV/69 kV substation and associated transmission lines. Parallel exposure of 24” pipeline along distance of 3500 feet to 230 kV line.
1995
Great Man-Made River Authority (GMRA) Brown & Root
Study of AC voltages on 4m diameter, coal tar epoxy-coated, prestressed concrete aqueduct due to proximity to double-circuit 220 model transmission line, for 330 km parallelism. Objective was to determine minimum separation distance, accounting for highly varying multilayer soil structures with highly contrasting layer resistivity ratios.
1994 Columbia Gas Delmarva Pipeline Mitigation Study
Mitigation design study following Lenape Substation AC Interference Analysis (described below). Design study accounting for the multilayer soil structure at 16 measurement sites, in order to design gradient control wire and gradient control grid systems affording satisfactory protection of 20" gas pipeline with a minimum length of wire. Both normal operating conditions and fault conditions on the power system are of concern.
1994
Philadelphia Electric Company
Determination of AC interference levels (conductive and inductive) occurring on 20" gas pipeline during load and fault conditions, as a result of construction of 230 model/33 model substation over pipeline. A 16-mile parallelism, including 7 transmission and distribution lines circuits and two substations in close proximity to the pipeline were modelled. Transferred voltages and AC interference mitigation effects of two nearby water pipe were considered.
1993
East Bay Municipal Utility District
AC mitigation design study for three aboveground aqueducts parallel to one-mile length of 500 model transmission line (new construction). Mitigation design accounts for substantial soil subsidence. Conductive coupling from structures and inductive coupling both studied. Detailed measurements to verify performance of mitigation system, due to both conductive and inductive coupling: excellent agreement with computer predictions. Measurements also verified that mitigation system does not disturb cathodic protection system.
1993
Texas Eastern Gas Pipeline Company
AC interference study, mitigation design study for 4.2 mile length of 16" gas pipeline in Pennsylvania, subjected to interference from three 230 model transmission line circuits. Mitigation designed for both steady state and fault conditions.
1987-93
ARAMCO Services Company & Saudi Consolidated Electric Company
Analysis and mitigation of electrical interference in pipelines and communications cables near a 380 model/230 model transmission line network in the Eastern Province of Saudi Arabia. The computer model used to perform the study included 16 transmission line circuits, 19 pipelines, and 6 communication cables in a total 380 model transmission line right-of-way length of over 200 km. This project was performed in three phases:

Phase I: Interference problem evaluation during fault and steady state conditions, identification of sites requiring mitigation, and creation of computer model.

Phase II: Examination of alternative mitigation methods (i.e., "brute force" approach versus cost-effective gradient control grids). The proposed mitigation, as requested, was based on the "brute force" approach; i.e., an attempt to reduce touch voltage hazards by grounding the pipeline via low impedance grounds, rather than controlling earth surface potentials around exposed pipeline surfaces.

Phase III: Detailed soil resistivity measurements at mitigation sites in order to permit gradient control wire systems to be designed. SES provided a special measurement approach based on frequency-selective equipment for environments with significant 60 Hz noise. A parametric analysis was performed and has provided reference curves which show, for 18 different transmission line structure types and 18 different soil structures, worst case touch voltages as a function of clearance of a pipeline or communications cable from each transmission line structure type. Implementation of cost-effective mitigation.
1991
Algonquin Gas Transmission Company
Steady state/fault analysis and mitigation design for a 20" gas pipeline feeding a power plant and passing through an 11 mile length of right-of-way containing four 115 model and two 345 model transmission lines. The cathodic protection provided by the mitigation system was also studied.
1990-91
Texas Eastern Gas Pipeline Company
Steady state/fault analysis and mitigation design for a 13 mile length of pipeline right-of-way involving a 36" pipeline, a 24" pipeline, and 7 transmission line circuits varying in voltage from 34.5 model to 230 model.
1988-91
ANR Pipeline Company
Steady state/fault analysis and mitigation design for a 140 mile length of 24" pipeline parallel to two 345 model lines in the State of New York. The project initially involved training ANR Engineers in the use of the ECCAPP computer program for simulation of electrical interference effects in the right-of-way. SES later became involved directly in the study and provided expert witness services during the hearing of the Public Service Commission of the State of New York (Case No. 88-T-132). During this study, a new highly effective mitigation design was developed and it was demonstrated that some designs advocated at the time were unsound.
1990
Wyoming-California Pipeline Company
Steady state analysis and mitigation design for a 24 mile length of 30" pipeline parallel to two 345 model transmission line circuits and one 138 model circuit. This project involved the creation of a procedure for measuring soil resistivity which is virtually immune to 60 Hz noise from nearby AC power lines. This resulted in much more accurate modelling of soil structures in this interference study than was possible before.
1989
Panhandle Eastern Pipeline Company
Steady state/fault analysis of an 11 mile length of 18" pipeline parallel to one 500 model and six 161 model transmission lines. All mitigation recommended for steady state and fault conditions was implemented in 1990.
1988
Algonquin Gas Transmission Company
Steady state/fault analysis of a 6 mile length of 12" pipeline parallel to two 13.8 model and two 115 model transmission lines.
1985
Alberta Power Limited
Conductive analysis of the effects of the Wapiti Electrical Substation, under power system fault conditions, on a nearby gas pipeline operated by Nova, an Alberta Corporation. The study determined the safe distances between the substation and pipelines.
1983
Trans-Canada Pipelines Inc
Inductive and conductive analysis and mitigation designs for the Trans-Quebec & Maritimes gas pipeline during power system faults on parallel Hydro-Quebec transmission lines and neighbouring electrical substations. Mitigation was developed and installed.
1983
Westcoast Transmission Company Limited
Electrified Railway Crossings of Westcoast Transmission's Grizzly Natural Gas Pipeline. Analysis, design and measurements of the electrical effects caused by the Quintette Coal railway electrical line on the buried pipeline. Mitigation was installed for steady state and fault conditions.

4.3 Computer Software

The following software was developed by Dr. Dawalibi or under his direction.

ECCAPP
Analysis of electromagnetic and conductive coupling effects between transmission lines and nearby pipelines. Software package developed jointly for EPRI (Electric Power Research Institute) and A.G.A. (American Gas Association).
RIGHT-OF-WAY
Inductive interference analysis in complex systems of electric power lines and other utilities, such as railways, communications lines and pipelines
CDEGS (See Section 3.3).

5. Power Equipment Manufacturing and Installation

5.1 Industry Experience

Dr. Dawalibi's experience in the area of power equipment manufacturing and installation is summarized by the following projects:

1973-74
New Brunswick Electric Power Commission
Protection and relay coordination for the Coleson Cove project; transmission planning for siting and connecting two 600 MW nuclear units.
1973-74
Volta River Authority, Ghana
Transmission planning; load flow and stability studies.
1973-76
Transport Development Agency, Government of Canada
High-speed linear induction motor, theoretical and experimental studies. Dr. Dawalibi has issued two reports and a technical paper on this subject. The MOLIN computer program also resulted from this work.
1974-75
James Bay Hydroelectric Project
Responsible for load flow, motor starting, stability and grounding studies for the construction site of LG-2.
1974-75
Marine Industries Ltd
Project Engineer for feasibility study of new distribution system for Marine Industries Ltd., involving technical and economical comparison of alternatives: Extension of existing 120/ 13.8 MODEL substation Implementation of new 120/ 13.8 MODEL substation Implementation of new 25/ 13.8 MODEL substation.
1976-77
REM-Mirabel railway electrification project
Project Engineer for electrification feasibility study (25 model, 60 Hz) involving energy and power demand, voltage drop and shunt compensation, catenary selection, protection, electrical interference and grounding, and cost evaluation.
1978 Chromasco Ltd, Quebec, Canada
Automatic Load-Shedding Systems Design.
1978
Technical training
Two months extensive training in Europe (Switzerland, Germany and Belgium) in connection with Sprecher and Schuh HV and MV equipment for power systems (1978). Dr. Dawalibi has acquired wide technical and practical experience, mainly on load break switches, circuit breakers (oil air and SF6), cubicles and metering transformers.

5.2 Power System Computer Software

MOLIN Analysis of Linear Induction Motors With Compensated Windings.
MOSTA Motor Starting Analysis.
CHARG Analysis of High-Speed Electrical Trains, Station Loading, Catenary Voltage and Electrical Interference.

6. Miscellaneous Experience

7. Partial List of SES Software Licensees

See the following link:
Licensed Clients

8. Technical Publications and Representative Studies

Dr. Dawalibi has authored over 250 articles in reputable journals and has participated actively in over 200 major projects. See the following links for lists of publications and representative studies authored or co-authored by Dr. Dawalibi:
Technical Publications
Engineering Project

9. Technical Seminars and Training

Dr. Dawalibi has been the primary instructor of over 200 technical trainings worldwide. The main topics that he taught are summarized at the following link:
Training


10. Expert Witness

Dr. Dawalibi has acted as an expert consultant in over 20 legal court cases and served as an expert witness in about 8 cases of those.