7th annual grounding & lightning conference annual grounding & lightning conference tel: ......

Conference Overview Conference Themes

Grounding and lightning issues continue to be an important area of development for the industry, as new and better ways to design, construct and test grounding and lightning systems progress to meet higher standards and changing industry demands. This conference is an open forum for information exchange, with a focus on technical presentations, training and the sharing of ideas and experiences for the benefi t of the participants and industry as a whole.

Supported by over 30 members, the Annual Grounding and Lightning Conference brings together leading subject matter experts from around the world, while providing an exceptional opportunity for networking with consultants, manufacturers and representatives from electric utilities.

• Pipelines and Transmission & Distribution Lines

• Copper Theft

• Personal Protective Grounding

• Distribution & Transmission System Grounding

• Lightning Protection and Performance

• Substation Grounding

SESSION 1: PIPELINES AND T&D LINES

SESSION 2: SUBSTATION GROUNDING

SESSION 3: T&D SYSTEM GROUNDING SESSION 4: PERSONNEL PROTECTIVE GROUNDING

SESSION 5: COPPER THEFT

SESSION 6: LIGHTNING PROTECTION & PERFORMANCE

7th Annual

Grounding & Lightning Conference

Tel: +1.514.866.5377 Fax: +1.514.904.5038 [email protected] www.ceati.com

DAY 1 - OCTOBER 26


SESSION 3: T&D SYSTEM GROUNDING

7:30 - 8:30 REGISTRATION & BREAKFAST

8.30 - 8:40 Welcome Address John Williamson,

CEATI

8:40 - 9:10 Electromagnetic Compatibility between Jose Daconti,

Transmission Lines & Pipelines Siemens PTI

9:10 - 9:40 Determining Minimum Separation between Ali Moshref, BBA

UG Pipelines & Electric Supply Line Structures

9:40 - 10:10 MORNING REFRESHMENT BREAK

10:10 - 10:40 Investigation to Install a Pipeline between Paul Loewen,

Two 115 kV Double Circuit Transmission Lines Manitoba Hydro

10:40 - 11:00 Session 1 Question & Answer Period

11:00 - 11:30 Using the Concept of Split Factor in GPR Ehsan Azordegan,

Calculations Kinectrics

11:30 - 12:00 Grounding System Analysis by means of Moritz Pikisch,

Simulation and Measurement Omicron

12:00 - 13:00 LUNCH

13:00 - 13:30 The Evolution of Integrity Testing and its Reliable Stephen Palmer,

Use in Proving Grounding Systems Safearth

13:30 - 14:00 Protecting Staff Working in and around Bill Carman, Bill

Live Substations Carman Consulting


14:15 - 14:45 Investigation of Effective Ground Impedance Peter Dick, METSCO

Measurement to Mitigate Distribution System Operating Parameters

14:45 - 15:15 Transmission Line Switch Grounding: Scott Nosal,

BPA Design Criteria and Philosophy Bonneville Power Admin.

15:15 - 15:45 AFTERNOON REFRESHMENT BREAK

15:45 - 16:15 Sectionalizing Overhead Ground Wire Peter Mayer,

and OPGW BC Hydro

16:15 - 16:45 Review of Distribution System Babak Jamali, Grounding Practices and Rules METSCO


18:00 - 19:30 EVENING RECEPTIONAll titles, presenters, times, and location subject to change without notice.

Installation of gas pipelines near electric supply lines is of high interest to GLIG members. It is critical to ensure adequate separation distance to protect the safety of both the pipeline and the powerline structures. Issues include induction, arcing and contact voltages. Other issues include AC corrosion as well as excessive time required for mitigation studies due to utility delays

Proper design, construction and testing of substation grounding systems is of high interest to GLIG. Included in this session, is the software used to design and the equipment used in testing. The risk of error resulting in unsafe conditions both inside and outside the substation is a concern.

All aspects related to grounding on both the Distribution and Transmission system are important to GLIG members. Some of the current issues discussed include Neutral Isolation Devices used on the Distribution System, Grounding in high resistivity and/ or mountainous areas, Distribution system grounding methods and standards, Low voltage system grounding, Transmission Line Switch Grounding, Stray Voltage on the Distribution system, Induced Voltage on Fences in powerline Right of Ways, Current Splitting under fault conditions between substation and distribution neutral ground systems, Ensuring safety around

SESSION 1: PIPELINES AND T&D LINES

SESSION 2: SUBSTATION GROUNDING

Session Descriptions

DAY 2 - OCTOBER 27

All titles, presenters, times, and location subject to change without notice.

7:30 - 8:30 BREAKFAST

8.30 - 8:40 Morning Announcements John Williamson,

CEATI

8:40 - 9:10 Temporary Ground Rod Resistance Limit Aram Khalil-Pour,

FortisBC

9:10 - 9:40 Remote Grounding for Induction Effects Mazana Armstrong,

BCHydro

9:40 - 10:10 MORNING REFRESHMENT BREAK

10:10 - 10:40 Performance Review of Gradient Control Mats Peter Dick,

Kinectrics

10:40 - 11:10 Vehicle Grounding Aram Khalil-Pour,

FortisBC


11:20 - 12:00 Open Forum on Grounding, Lightning, & Safety Subject Matter Experts

12:00 - 13:00 LUNCH

13:00 - 13:30 Copper Theft: Planning for the Future Stephen Oaks, Pacific

Management Partners

13:30 - 14:10 Copper Theft Utility Experience - Hydro One Jody Levine, Hydro One

& American Transmission Company Cris Kramschuster &

Bryan Beske, ATC


14:30 - 15:00 AFTERNOON REFRESHMENT BREAK

15:00 - 15:30 Overview of the US National Lightning Ken Cummins,

Detection Network University of Arizona

15:30 - 16:00 Case-by-Case Review of Transmission Line Ulrich Bauch,

Arrester Projects Siemens AG

16:00 - 16:30 Lightning Information and its Electric Ken Cummins,

Power Applications University of Arizona


16:45 - 17:00 Concluding Remarks John Williamson,

CEATI

Personnel Protective Grounding (PPG) is key to ensuring safety of utility workers, public and equipment. Some of these aspects include PPG methods and practices, testing of cables and hardware, safety training, managing induced voltages and currents on power systems as well as testing of temporary grounding systems. Other topics also include portable protective ground clamp selection and conductor size, integrity testing, temporary protective grounding, bracket grounding and equipotential grounding

Copper theft from utility grounding systems is a critical issue to GLIG members. Of primary interest are prevention methods and techniques including alternative conductors and installation methods. Other aspects of copper theft include utility experiences, as well as risk to infrastructure both now and in the future particularly since the price of copper is expected to increase significantly in future years.

Both lightning protection and lightning performance of electric utility systems are important to GLIG members. This includes safety to people and equipment, response to outages as well as prediction and location of lightning events.

SESSION 5: COPPER THEFT

SESSION 4: PERSONNEL PROTECTIVE GROUNDING

SESSION 6: LIGHTNING PROTECTION & PERFORMANCE


Session Descriptions

Presentation Abstract: The presentation will address the major types of disturbances on metallic pipelines that may occur due to their proximity with AC overhead transmission lines. This proximity may come as a result of parallelism or crossing between pipelines and high voltage transmission lines. Above-ground and underground pipeline sections will be discussed. Capacitive, inductive and conductive coupling mechanisms between transmission line and pipeline will be qualitatively and quantitatively described. Induced voltages on pipelines caused by transmission line normal and faulted operation conditions will be analyzed. Potential risks to the safety of pipeline workers and to the physical integrity of pipeline system components (pipeline steel, pipeline coating, insulating joints and cathodic protection system) will be discussed. Safety criteria and mitigation means will be presented. Recommendations for pipeline route selection and fi eld installation focused on minimization of hazardous induced eff ects will be mentioned. Case studies analyzed by the lecturer will also be presented.

Bio: With over 37 years of diverse electric power systems experience and professional training, Mr. Daconti has performed various activities in the areas of power system analysis and planning, overhead transmission lines, and power system electromagnetic compatibility. Regarding power system electromagnetic compatibility, his major experience has been concerned to the infl uence of high voltage transmission lines on metallic pipelines. He has more than 30 papers published in national and international conferences. He received his Electric Power System MSEE (Honors Degree)in 1986, and successfully concluded the Hubert Humphrey Fellowship Program (Cornell University, 1996-1997). He is a CIGRE Distinguished Member, an IEEE Senior Member, and a Sigma Xi Full Member.

Determining Minimum Separation between UG Pipelines & Electric Supply Line Structures – Ali Moshref, BBA

Presentation Abstract: This presentation describes the impact of transmission lines on pipelines. Magnetic and electric fi elds surrounding power line can energize and induce voltage on the nearby metallic structures. This AC interference can result in equipment damage (e.g. coating stress) and or jeopardize personal safety. Mitigation techniques to alleviate these adverse eff ects such as gradient control wires is investigated. In a case study, the AC interference eff ects from high voltage transmission lines (500, 230 and 69kV) on 42” NSP pipeline is studied. The modeling and simulation of diff erent scenarios are analyzed using SES-ROW software package. The assessment of the AC inferences includes the normal operation of power lines (steady state) as well as under fault conditions. The design criteria used in the study are based on the CSA 122 and NACE standards. Methods of determining safe distance from power lines to minimize risk of arcing have been investigated.

Bio: Ali Moshref (SM’ 2012) received his PhD degree in electrical engineering from McGill University, Montreal, Quebec, Canada, in 1983. He has over 30 years of experience in consulting, research, and software development. He has served the power system industry in the following positions: Cofounder and Director System Engineering, CYME International T&D; Manager, Power System Studies, Powertech Labs Inc.; Senior Director, Transmission West Region, Quanta Technology. He is currently the Department Manager, Power Systems and Testing, at BBA Inc., Vancouver, British Columbia, Canada. His technical activities include power system planning and operation, development of operating guidelines, and computer applications in power system analysis.

Electromagnetic Compatibility between Transmission Lines and Pipelines - Jose Daconti, Siemens PTI


Grounding & Lightning

October 26 - 27, 2015 - Scottsdale, AZ

Investigation to Install a Pipeline between Two 115kV Double Circuit Transmission Lines - Paul Loewen, Manitoba Hydro

Presentation Abstract: Manitoba Hydro will be installing 4.3km of 12” steel gas transmission pipeline in parallel to two 115kV Double Circuit Transmission Lines. The pipeline will be located inside the electric right of way. An AC Interference investigation was performed to consider inductive coupling, conductive interference, and AC corrosion. The investigation was performed using CDEGS software and methodologies, and referenced standards CSA 22.3-6 and MBH internal gas standard.

This presentation will be an overview of the investigation, including criteria, analysis, results and recommendations.

Bio: Paul graduated from the University of Manitoba (B.Sc.E.E.) in 2011, and began his career at Manitoba Hydro in the same year. After EIT rotations in Communications, Insulation Testing, and Distribution Projects, Paul began working in sub-station grounding design as a grounding studies engineer. Most recently, he has become involved with gas-electric facility co-location studies (AC Interference), including work for MBH and external utilities.

Using the Concept of Split Factor in GPR Calculations – Ehsan Azordegan, Kinectrics

Presentation Abstract: To calculate the ground potential rise at fault locations along the underground collection cables, the current return path to remote sources must be known. A portion of the fault returns through the concentric neutrals while the rest of it returns through the soil. Only the portion that returns through the soil contributes to the GPR at fault location. The current returning through the concentric neutrals comprises of two diff erent components; inductive component and conductive component. The AC resistance of the concentric neutrals, the distance between the concentric neutrals and the faulted phase, and the deeper layer soil resistivity defi ne the inductive component of the return fault current through concentric neutrals. The conductive component is a function of ac resistance of the concentric neutrals and periodic grounding solutions on the concentric neutral (if any), and deeper layer soil resistivity. The most comprehensive and detailed solution for calculating the current split and GPR at fault locations is to model the entire layout of the underground cable in software that can take into account the inductive, conductive, and capacitive coupling simultaneously. However building and running such models with that level of detail can be time consuming. Some designers will simplify the problem by neglecting the inductive portion of the fault return current, resulting in an extremely conservative design. A better approach is to de-couple the inductive component of the fault current from the total fault using the concept of a “Split Factor”, also known as “Shielding Factor”. This presentation explains and compares two approaches for fi nding the GPR at fault location; detailed modelling of the entire underground collection cable vs the simplifi ed “Split Factor” method. The eff ect of neglecting the inductive component of the return current (as a conservative assumption) in calculating the GPR is also studied and compared with the detailed modelling results.

Bio: Ehsan Azordegan joined Kinectrics in 2012 as an engineer/scientist on grounding systems. He has mostly been engaged in ground testing and design. Being a certifi ed CDEGS user, he is responsible for modeling, simulation, and design of grounding systems in CDEGS. He has tested, modelled, and designed a number of high voltage transformer stations, switching stations, and distribution stations. He has also been involved in testing and modelling of a number of hydraulic power generation stations, solar farms, and wind farms. Ehsan’s interests and expertise include grounding test and design, pipeline coordination studies, and transformer and cable testing. Ehsan is currently a part-time PhD Candidate in the high voltage engineering program at University of Manitoba.




Grounding System Analysis by means of Simulation and Measurement - Moritz Pikisch, OMICRON

Presentation Abstract: Grounding system tests verify the eff ectiveness of the construction and simulation of a grounding system. Interpretation of fi eld test measurements can be confi rmed with simulations performed by CDEGS software. The

basis for a representative simulation is an accurate soil resistivity test (SRT) which determines the soil resistivity in various depths required by the multilayer model in CDEGS. The software then calculates worst case step and touch voltages which must not exceed permissible limits as stated in IEEE 80-2000. Further, the grounding system’s fall-of-potential (FOP) as well as the current split of incoming lines is determined by simulation.

This paper focusses on the measurement of soil resistivity, step and touch voltage, fall-of-potential, as well as the current split by using dedicated OMICRON equipment. An overview of the grounding system’s assessment of a wind farm project is given, which outlines an argumentation for safe operation under worst case conditions by comparing simulated to measured values for step and touch voltage, fall-of-potential and current split.The paper therefore additionally demonstrates the high accuracy of both the simulation tool and the test equipment.

Bio: Moritz Pikisch studied Electrical Engineering at the University of Karlsruhe / Germany. After working as an instructor at OMICRON between 2010 and 2013, he switched to a product management role at the beginning of 2014. In this new capacity, he is responsible for the development of testing solutions for line impedance measurement and the testing of grounding systems.

The Evolution of Integrity Testing and its Reliable Use in Proving Grounding Systems - Stephen Palmer, Safearth

Presentation Abstract: This paper reviews the various methods used for assessing ground integrity and the characteristics required of a test procedure to make it eff ective at assessing same. Accurate measurement of resistance in the electrically noisy environment of a power substation is a diffi cult task. In the case of grounding grid measurements, not only are the noise levels quite high but the resistances to be measured are relatively small, and the absolute signifi cance of a specifi c measurement can be obscure. While continuity based testing is a relatively well accepted method for assessing the integrity of a grounding grid, no specifi c continuity based test has distinguished itself with practitioners at large. Performing continuity measurements within a grounding grid to a high level of resolution has required current levels of the order of 100A. This was necessary to overcome the electrical noise present within a HV substation which obfuscate the presence of ground condition anomalies. Recent advances in measurement technology in this area have made continuity measurements possible at low current levels, of the order of 1A, with the additional advantage of making the test method signifi cantly more portable and quicker than the higher current equivalent tests. This presentation presents an integrity assessment test which utilizes continuity test technology advantageously so that a skilled operator can investigate the state of a ground’s integrity with a high level of confi dence.

Bio: Stephen Palmer is Director of Safearth Consulting. He is an Australian grounding (also called earthing) specialist with expertise in all areas related to grounding, including design, audit and test in sectors including power generation and delivery, heavy industry, mining and rail. For over 15 years Stephen has investigated and managed the risks associated with grounding, lightning protection and interference. As the leader of a team of 25 consultants & researchers his experience extends well beyond the technical aspects of the fi eld. Stephen has delivered formal grounding training for more than a decade and has presented at numerous conferences including for the NSW Government, Energy Networks Association (ENA), Engineers Australia, CIGRE and the IEEE. He has been a contributing member on the committees responsible for Australian documents including EG-0, AS3007 and AS2067. Stephen recently co-delivered a testing tutorial for IEEE Std81 and is the secretary of the CIGRE & CIRED Joint Working Group B3.35, tasked to publish on substation earthing design optimisation including quantifi ed risk.




Protecting staff working in and around live substations - Bill Carman, Carman Consulting

Presentation Abstract: When work is being undertaken within or adjacent to a live substation, grounding-related hazards are not always easy to understand, and are not usually continuously present. Whilst a ‘one size fi ts all’ list of mitigation measures would be optimal, in practise such a list is overly costly and impractical to implement, and where indiscriminately applied can introduce more dangerous hazards. This presentation identifi es the construction activities that may expose staff or the public to touch or transfer potential hazards, and discusses a range of mitigation measures that may be implemented in a manner that is not easily compromised by other construction activity.

Bio: Bill has specialised in the management of grounding system and lightning related risks since 1982, being closely involved in grounding system design and testing, standards development, R&D projects, and training throughout Australia and the Asian region. As the founder and Principal Consultant of the Safearth team for over a 25 year period, Bill worked with a wide range of clients from power generation (coal, gas, hydro, wind, solar, and nuclear) and transmission to distribution, as well as industrial users and mining installations. He received his BE(Elec)(Hons I) in 1982, and Doctorate in the area of earthing system risk quantifi cation and design in 2002, and is a conjoint Senior Lecturer with the Engineering School at Newcastle University. Bill is active in Australian and IEEE standards and industry committees, providing a leadership role in the development of new national standards.

He is the chair of the joint Cigre/Cired B3:35 committee investigating the integration of quantifi ed risk in earthing/grounding system design and operation. After 37 years in a power utility, Bill now operates as an independent consultant providing support to utilities and industry regarding the management of earthing/grounding and lightning related risk.

Investigation of Eff ective Ground Impedance Measurements to Mitigate Distribution System Operating

Parameters – Peter Dick, METSCO

Presentation Abstract: Historically the continuous voltage seen on distribution neutrals was limited to a few volts. Several changes have pushed these higher. Upgraded distribution voltages allow for greater load current on single phase laterals, thus increasing neutral voltages. The elimination of distribution at 4.16 kV fed by delta connected transformers pushes unbalanced load current upstream in the power system. Triplen harmonics produced by electronic loads are no longer eliminated by delta windings near customers. Today delta primaries and secondaries on 480 and 600 V services are not common. These unbalances now terminate at a more centralized transformer having a relatively high zero sequence impedance to limit fault current. The aggregated station grounding impedance for a number of distributed 4.16 kV supply stations was lower than that of a single centralized station. Primary fault currents have also increased with system voltage. This presentation reviews test methods and modelling techniques to allow utilities to quantify these voltages and plan for their mitigation.

Bio: Mr. E. Peter Dick, P. Eng., retired in 2005 from Kinectrics (formerly the Ontario Hydro Research Division) after working at 800 Kipling Ave, Toronto for more than 30 years. His experience covers reviewing designs, testing, modeling, and coordinating stresses and withstands for most components of the electrical utility generation, transmission and distribution systems. In the last 9 years, Peter has taken on more than 250 projects for Kinectrics, SAE Inc, METSCO, WSP-Genivar and SMS Energy-Engineering. He has also worked independently as a sole proprietor under the business name Electric Power Diagnostics (EPD). EPD has a Certifi cate of Authorization from the PEO. Most of the projects have been in the area of grounding and electrical safety. Peter has led a number of CEATI projects: “Identifying and Documenting Existing Substation Ground Grid Detectors” to locate failures of buried ground grid conductors; “Mitigation of Stray Current on Underground Transmission Systems” to study how DC traction systems aff ect cathodic protection of utility HV cables and “Grounding and Bonding in Underground Cable Maintenance Work” to review the eff ect of system faults when testing of HV cables. Peter is a member of working groups to revise IEEE Std 80 on ground design, IEEE Std 81 on ground testing and CSA Std C22.1 (Canadian Electrical Code, Part 1, Section 36 on HV Substations). Between 2010 and 2013 he helped a working group to update CSA Std C22.3 No 6 “Principles and Practices of Electrical Coordination between Pipelines and Electricity Supply Lines”. Mr. Dick also edited the Ontario Hydro “Transmission and Distribution Grounding Guide” in 1994.




Transmission Line Switch Grounding: BPA Design Criteria and Philosophy – Scott Nosal, Bonneville Power Administration

Presentation Abstract: BPA has three hundred eighty 115kV disconnect switches on its 3,500 miles of 115 kV lines. The use of the disconnect switches allow sectionalizing of the transmission lines so that maintenance can be performed on the line equipment without taking any customers offl ine. Operator safety is paramount while using a transmission line disconnect switch and grounding is a key component of the design. BPA relies on bonding the switch handle to the platform that the operator stands on. The grounding design of the switch installation is crucial because if a fault to ground occurs while switching, the footing resistance of the switch must be low enough that the line protective relays will see the fault condition and trip the breakers at the ends of the line. When the resistance is too high the relays will take an extended time to react or will not react at all. This presentation will discuss the typical BPA switch grounding practices as well as special cases where the switch footing resistance was too high and alternative methods were used to reduce the resistance.

Bio: Scott Nosal Graduated in 2002 from the University of Nevada Las Vegas with a BSEE. He has been employed at the Bonneville Power Administration from 2002 – Present. Working in the Transmission Line Engineering – Electrical Design. Scott has worked on Land Use Permitting, Obstruction Lighting and Marking, Ceramic, Glass, and Composite Insulators. He presently is specializing in Transmission Line Disconnect Switches.

Sectionalizing Overhead Ground Wire and OPGW – Peter Mayer, BC Hydro

Presentation Abstract: BC Hydro’s practice is to insulate and sectionalize overhead shield wires on transmission lines. This presentation provides a summary of the major benefi ts and challenges of this approach with special focus on how BC Hydro addresses them. Topics include: Sectionalization of OPGW, pipeline coordination, and control of shield wire voltages.

Bio: Peter Mayer is a Senior Engineer in BC Hydro’s Transmission Line Electrical Design team. The team is responsible for all electrical aspects of transmission line design, operation, and maintenance including: tower shielding design, grounding, environmental aspects, and many other topics. He is a member of the IEEE, and is registered as a Professional Engineer in the provinces of BC and Manitoba.




Review of Distribution System Grounding Practices and Rules – Babak Jamali, METSCO

Presentation Abstract: Distribution systems have faced substantive and signifi cant changes over recent years as a result of an increase in non-linear loads, connection of distributed generation, a growing awareness for the protection for dairy animals against stray voltages as well as the need to improve effi ciencies and controllability. In response, designers are making changes to topologies, adding new protection and control devices, increasing distribution voltage levels, and paying more attention to neutral to earth voltage (NEV). A review of distribution neutral grounding practices is an important part of this response to ensure that networks operate reliably and safely along with serving evolving loads with greater sensitivities to system disturbances. This report summarizes the fi ndings of a comprehensive review of the existing distribution grounding practices in North America, which include determining the level of risks posed by old practices and rules in order to achieve safe and reliable operations. The study provides practical recommendations that benefi t the operation, safety, security and quality of the service provided to distribution customers.

Bio: Babak is a professional engineer with over 15-year experience in grounding systems analysis, design and condition assessment. For the past ten years he has served as the team leader for transformer station ground grid design and condition assessment testing. He has signifi cant hands-on experience in conducting power system simulation studies for steady state and dynamic analysis with power industry’s standard software tools, including PSCAD, MATLAB, EDSA and CYME. He routinely works on research projects and has authored a number of reports for CEATI. He excels in managing power system projects and has demonstrated creative problem-solving skills.

Temporary Ground Rod Resistance Limit– Aram Khalil-Pour, Fortis BC

Presentation Abstract: When we ground a de-energized transmission line and we want to work on a structure, do we need to measure resistance of temporary ground rod (or remote ground)? If yes, what is the maximum acceptable resistance of temporary ground rod?

FortisBC has done some modelling and calculations to look at this in detail. There are many items which impact on the modeling; i.e. type of the pole, resistance of the pole, connection between pole band and pole, type & size of ground jumpers, single phase or three phase grounding, resistance of temporary ground rod (or remote ground), and fault levels. Bio: Aram is an electrical engineer (P.Eng) with 15 years experience in the power industry (11 years in utility and 4 years in consulting engineering). He started at FortisBC in 2009 as “Transmission and Distribution Lines Standards Engineers, then worked as “Supervisor-Lines Engineering” and now he is “Manager, Engineering” at FortisBC. Aram is an active member for CEATI DALCM and GLTF and also is a member of IEEE WG Insulators. Aram is located at Kelowna, beautiful British Columbia, Canada.

Vehicle Grounding– Aram Khalil-Pour, Fortis BC

Presentation Abstract: The scope of this presentation is to discuss about the pros and cons of grounding FortisBC line trucks and to provide information on the diff erent grounding procedures on diff erent type of truck.

Three diff erent scenarios were included:• Vehicle not grounded, • Vehicle grounded to a temporary ground rod, and• Vehicle grounded to a system neutral.




Remote Grounding for Induction Eff ects – Mazana Armstrong, BCHydro

Presentation Abstract: BC Hydro procedures and practices for work on de-energized transmission lines historically relied on single point worksite grounding, as the practice of using ground switches was discontinued in early 1980’s. In this presentation, challenges experienced by BC Hydro fi eld crews when working on transmission lines energized by induction will be described. The presentation will discuss the practice of remote grounding, multiple worksites, and hazards created by magnetic induction from parallel circuits.

Bio: Mazana Armstrong is an Engineering Team Lead with BC Hydro Transmission Engineering. Her responsibilities include electrical aspects of BC Hydro’s overhead transmission line design, operation and maintenance. She holds a degree in Electrical Engineering from the University of Zagreb, Croatia, and M.A.Sc. and Ph.D. from the University of British Columbia (UBC). Prior to joining BC Hydro in 2007, she worked as a research engineer at Powertech Labs and research assistant at UBC. She also has a prior work experience with the Croatian Power Utility HEP. Dr. Armstrong is a registered professional engineer in the Province of British Columbia

Performance Review of Gradient Control Mats - Perter Dick, Kinectrics

Presentation Abstract: The primary objective of this ongoing project is to determine the eff ectiveness of currently available voltage gradient control mats in protecting workers and recommend design improvements. Recommendations for design improvements to be refl ected in utility specifi cations for ground mats will be included in the project summary. This presentation will review performance of various voltage gradient control mats including both portable and fi xed types available on the market. The presentation will identify and determine the best ways to protect workers from touch and step potential hazards while working in the vicinity of high voltage equipment; and identify suitable products, both portable and fi xed types, to maximize worker protection. The presentation will review current applicable testing standards (e.g. ASTM F2715 – 09) and propose improvements where shortcomings are identifi ed.

Bio: Mr. E. Peter Dick, P. Eng., retired in 2005 from Kinectrics (formerly the Ontario Hydro Research Division) after working at 800 Kipling Ave, Toronto for more than 30 years. His experience covers reviewing designs, testing, modeling, and coordinating stresses and withstands for most components of the electrical utility generation, transmission and distribution systems. In the last 9 years, Peter has taken on more than 250 projects for Kinectrics, SAE Inc, METSCO, WSP-Genivar and SMS Energy-Engineering. He has also worked independently as a sole proprietor under the business name Electric Power Diagnostics (EPD). EPD has a Certifi cate of Authorization from the PEO. Most of the projects have been in the area of grounding and electrical safety. Peter has led a number of CEATI projects: “Identifying and Documenting Existing Substation Ground Grid Detectors” to locate failures of buried ground grid conductors; “Mitigation of Stray Current on Underground Transmission Systems” to study how dc traction systems aff ect cathodic protection of utility HV cables and “Grounding and Bonding in Underground Cable Maintenance Work” to review the eff ect of system faults when testing of HV cables. Peter is a member of working groups to revise IEEE Std 80 on ground design, IEEE Std 81 on ground testing and CSA Std C22.1 (Canadian Electrical Code, Part 1, Section 36 on HV Substations). Between 2010 and 2013 he helped a working group to update CSA Std C22.3 No 6 “Principles and Practices of Electrical Coordination between Pipelines and Electricity Supply Lines”. Mr. Dick also edited the Ontario Hydro “Transmission and Distribution Grounding Guide” in 1994.




Copper Theft: Planning for the Future – Stephen Oaks, Pacifi c Management Partners, Ltd.

Presentation Abstract: The three critical aspects of our transmission and distribution system, Reliability, Safety and Cost Reduction are all aff ected by copper theft. The many diff erent methods of protection will be presented with examples from utilities in the U.S.

After this presentation, engineers, linemen and operations personnel will have choices for reducing or eliminating copper theft risk to utilities in the North America. This will be an educational presentation that has been given to hundreds of engineers at design fi rms and utility management throughout the U.S. in the past few years. The presenter has also written articles for Utility Products, Wind Systems and assisted with articles for T&D World.

Bio: Steven has over 25 years of product introductions in the electronic and electrical industries. He has held management positions in Fortune 500 companies and assisted in product innovation/adoption across various hardware and software markets. He Is a faculty member/instructor at the University of Phoenix. He is currently a contractor/consultant with CommScope. Stephen holds an Aeronautical Engineering and Marketing degree from San Jose State University and an MBA from Pepperdine University.

Copper Theft Utility Experience – Jody Levine, Hydro One & Cris Kramschuster & Bryan Beske, ATC

Presentation Abstract: A common problem across utilities is the issue of copper theft. This presentation will detail how one utility deals with this issue. Topics covered will include: the challenges in identifying and quantifying the scope of the thefts, the exploration of alternative materials and implementation challenges, experience with the materials chosen and other measures being taken.

Bio: Bryan Beske received his B.S in Electrical Engineering from the University of Wisconsin – Platteville in 1999 and obtained his Professional Engineering certifi cation in 2006. Since 2002 he has been with the American Transmission Company and is currently a Consultant Standards Engineer. His primary focus is lightning and grounding aspects of transmission lines and substations. Bryan is a member of IEEE, ASTM and CIGRE and is an ATC delegate for CEATI, EPRI and various industry standards working groups that pertain to lightning and grounding.

Bio: Mr. Cris Kramschuster is a 1989 graduate of the University of Wisconsin - Milwaukee with a degree in Electrical Engineering. Cris is a registered professional engineer in the state of Wisconsin with 22 years of experience in the utility industry. Presently he serves as a Senior Electrical Engineer at American Transmission Company. in Waukesha, Wisconsin specializing in substation grounding analysis and design.

Bio: Jody Levine (BASc Waterloo 1991, MASc Waterloo 1999) has been with Hydro One since 2007 where she is the leader of the Ancillaries Team of the Maintenance Technical Services department. She works as a consultant to fi eld staff and asset managers on technical matters, particularly emergency correctives, failure analysis, and safety procedures. She is responsible, province wide, for grounding, capacitors, reactors, lightning arresters,

and arc-fl ash issues. Prior to that she was with Kinectrics (formerly Ontario Hydro Technologies) where she gained wide experience with high-voltage and high-current electrical testing, with particular interest in broadband partial discharge measurement, generation of surge current, and confi guration of personal protective grounds. She is a group chair on the Insulated Conductors Committee of IEEE PES , is an active member of the CEATI Grounding and Lightning Task Force, and is a corresponding member if the IEEE Surge Protective Devices Committee. Jody is a Licensed Professional Engineer in the Province of Ontario and a Senior Member of IEEE.




Lightning Information and its Electric Power Applications – Kenneth L. Cummins, University of Arizona

Presentation Abstract: Cloud-to-ground lightning is a leading cause of power interruption, electrical disturbances, and equipment damage. Thunderstorms also create a safety hazard during line maintenance activities. This presentation will provide a brief discussion of thunderstorm development, lightning, and lightning detection, focusing primarily on cloud-to-ground (CG) lightning. This will be followed by an overview of lightning interaction with power systems and how information from modern Lightning Locating Systems are being used to help improve reliability, power quality, and safety.

Bio: Dr. Cummins received his Ph.D. degree in Electrical Engineering from Stanford University in 1978, with an emphasis on digital and statistical signal processing and physiological modeling. Dr. Cummins worked in the neurosciences until 1989, as a research scientist at Stanford Medical Center and then as a staff scientist for Nicolet Instruments. From 1989 until 2005,

Dr. Cummins served as the R&D Manager and chief Scientist for Vaisala’s Thunderstorm Business Unit (formally Global Atmospherics, Inc.), located in Tucson, Arizona. Since retiring from Vaisala in 2005, Dr. Cummins is currently a Research Professor in the Institute of Atmospheric Physics in the Department of Atmospheric Sciences at the University of Arizona. He is the author of over 75 scientifi c papers and holds 9 U.S. patents and many related international patents. Dr. Cummins is a Senior Member of the IEEE and has served on various IEEE and CIGRE Working Groups related to lightning. In 2013 and 2015, he received NASA Silver Medals for his service on NASA’s Lightning Advisory Panel and for his contributions to UAV-based observations of thunderstorm electric fi elds.

Presentation Abstract: Line surge arresters (LSAs) are mainly used for lightning protection on overhead power lines (OHLs) preventing ground faults, hence, improving OHL reliability. However, experience has shown that LSAs can also be eff ective when used for line protection purposes on OHLs with low insulation coordination, overloaded circuits, switching overvoltages, double-circuit failures, and induced electromagnetic fi elds (RIV) that adversely aff ect nearby buildings. LSAs applied for these purposes, off er improved station protection and provide cost eff ective line upgrades without the substitution of insulators or extra shield wires. Case-by-case projects will be presented and discussed in this presentation.

Bio: Uli Bauch was born 1966, in Germany. He graduated from the Technical University of Berlin with a Master’s in Mechanical Engineering in 1993. Upon graduation he joined Siemens AG in the Large Motors division where he held positions in R&D and Marketing. In 2001, he joined Siemens Energy Management and became Director of Sales for Surge Arresters in 2004. Between 2007 and 2013 he worked in the USA and Canada where he was appointed General Manager for HV Bushings. Since 2013 he is the Vice President Sales and Marketing for Surge Arresters in Berlin, Germany.

Case-by-case review of transmission line arrester projects – Uli Bauch, Siemens AG




Grounding and Lightning Protection Interest GroupGrounding systems are installed throughout power and tele-communication systems to dissipate energy under lightning, fault and steady-state conditions.

Today there is a greater awareness and desire to ensure that grounding for safety is achieved. There is also a stronger focus on improving lightning performance of transmission and distribution systems.

Grounding issues across the world have typically been dealt with by technical groups, each with their own specifi c terms of reference. The Grounding and Lightning Interest Group (GLIG) takes a broad spectrum view, providing clarity and understanding to grounding and lightning related topics. It provides an avenue for moving information from one technical area to another through peer-to-peer guidance and an opportunity to network, as well as defi ning the direction for future research.

Topics & IssuesGrounding & Lightning T&D Systems: • Design• Construction• Testing• Maintenance• New TechnologiesPersonal Protective Grounding Pipeline Mitigation in Proximity to Electrical Structures

Copper Theft Mitigation

Technical AdvisorMr. John Williamson received his Bachelor Degree in Electrical Engineering in 1974 from the University of New Brunswick. He is a professional engineer in the province of New Brunswick with 36 years of experience in the electrical utility industry. He served NB Power Transmission Corp. as Manager of Transmission Engineering. In 2008, he established J Williamson Engineering Inc specializing in lightning protection and grounding system design. His recognized expertise in grounding related issues from 30 years of experience in troubleshooting utility grounding problems has made him a natural and eff ective technical advisor of the CEATI Grounding and Lightning Interest Group and its annual workshops. He is a previous participant in CEATI TODEM where he organized and chaired the TODEM transmission line lightning protection workshop in 2006. His recent accomplishments have been in the area of transmission line lightning protection and more specifi cally the practical issues in application of line arresters.

Annual Activities

Participation is open to:

Project Reports

For a complete project listing, please visit: www.ceati.com/GLIG

2 Face-to-Face Meetings

2-Day Industry Conference

4-5 Training Webinars

4-5 Conference Calls

On-Demand Information Exchange

Collaborative Project Development

Electrical Utilities

Over the years, CEATI International has published more than 1500 projects in the fi elds of:

Generation; Transmission; Distribution; Utilization

For a complete listing, please consult our website.

CEATI International Inc. (CEATI) 1010 Sherbrooke St. W., Suite 2500 Montreal, QC Canada H3A 2R7

Phone: +1. 514. 866. 5377 Fax: +1. 514. 904. 5038

www.ceati.com [email protected]

Projects• Review of Distribution System Grounding Practices and Rules• Ensuring the Integrity of Working Ground Connection Points• Performance Review of Gradient Control Mats • Comparison of CSA, IEEE and IEC Approach to Lightning Protection• Determination of Minimum Separation Between Undergound Pipelines

and Electric Supply Line Structures• Grounding System Maintenance Guide & Health Index Methodology• Evaluation and Comparison of Grounding Test Equipment• Risks in Design, Construction and Testing of Grounding Systems

Several Topics from Past Conferences• Panel Discussion on Personal Protective Grounding• Lowering Losses on Transmission Lines with Arresters • Utility Practices in Grounding Design, Contruction and Testing• Lightning Protection - Avoiding Common Mistakes • Soil Resistivity Results for High Frequency versus Low Frequency

Measurements• Open Forum Question Period: Lightning, Grounding, Safety• Copper Theft Issues and Methods to Mitigate• Stray Voltage and Distributed Generation

Recent Training Sessions & Webinars• Copper Theft: Costs, Damages and Solutions• Distribution Primary to Secondary Neutral Isolation Devices• Arrester Applications Webinar: An In-Depth Review of Arrester

Applications Commonly Used on Power Systems• Severe Geomagnetic Disturbances and their Impacts to Electric

Power Grids • Lightning Safety Solutions for Transmission and Distribution Systems• Selection and Performance Tools for Transmission Line Arresters• Lightning Protection System Design• New Test Methods for Evaluation of MOV Lightning Arresters and

Other Insulating Materials• Evaluating the Human-Safety Component of Grounding Systems• Distribution Stray Voltage in an Urban Environment


Th e CEATI Program Model provides electrical utilities with a cost-eff ective vehicle for sharing experiences and addressing issues pertinent to their day-to-day operations, maintenance and planning. In addition to serving as a strong technical resource tool through 18 focus areas across generation, transmission, distribution and utilization, our participants periodically support the development of industry-open conferences and training workshops. Th is is where we invite you to come join us.

Our industry-open events bring manufacturers, service providers, consultants, and world-renowned technical experts together with some of the key-decision makers in the industry. Th ese events present excellent opportunities for targeted networking and exposure to potential clients, placing you directly in front of the end-users of your company’s products and services.

Our fall 2015 Grounding & Lightning Conference is organized with the support of CEATI’s Grounding & Lightning Interest Group (GLIG) composed exclusively of electrical utility representatives from more than 30 participating

Why Partner with CEATI Events?

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TO OUR MEDIA PARTNER!

7th annual grounding & lightning conference annual grounding & lightning conference tel: ......

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