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This part of the course covers the soil resistivity measurement, safety requirements, necessary steps for the design of a safe ground grid design and corrective measures. The design of high-voltage substation grounding system is presented.

Course Outline
After Participating in this Course, You will be Able to: • Enhance your knowledge and skills in power systems neutral grounding and high voltage substation ground grid design
• Develop a clear understanding of all aspects of power system neutral grounding and high voltage substation ground grid design
• Analyze the importance of the Electrical Code Requirements
• Recognize important issues such as grounding and ground fault protection



Two important topics in power systems engineering will be covered in this two-day course. Power system neutral grounding plays an important role for the safety of personnel, detection of faulted elements, and preservation of power system and equipment.  The types/methods of system neutral grounding used in industrial plants is comprehensively covered in the first part of the course.  The second part deals with high-voltage substation ground grid design which is extremely important for the safety of personnel and preservation of equipment.  This part of the course covers the soil resistivity measurement, safety requirements, necessary steps for the design of a safe ground grid design and corrective measures.  The design of high-voltage substation grounding system is presented. 


To provide participants with the understanding of guidelines for the selection of neutral grounding methods for industrial power systems and power plants safety issues associated with high voltage substation grounding and step by step approach in the design of a safe grounding system

Who Should Attend

Electrical power distribution engineers, electrical power system engineers, plant managers, consulting engineers and other engineers and technical personnel involved in the design, engineering, operation and maintenance of power distribution systems and high voltage substations for industrial plants and utility power systems.

Program Outline

Day I

Registration and Coffee

Welcome, Introduction, Workshop Preview, Learning Outcomes and the Assessment Method

What Is Grounding? 
• Flow of currents to earth
• Grounding electrodes
• Ground-potential-rise (GPR) during power system faults

Power System Neutral Grounding
• An overview of power system neutral grounding
• System grounding as found in industrial plants and high-voltage substations
• Ungrounded systems
• Resistance grounded systems
• Reactor grounded systems
• Solid or effectively grounded systems
• Resistance grounded systems in industrial plants
• Calculation of ground-fault current
• Ground-fault detection on resistance grounded systems
• Ground-fault detection on ungrounded systems
• Examples and cases

Generator Neutral Grounding
• Generator neutral grounding methods, equipment selection
• Reasons for limiting generator ground-fault current to a low value
• Neutral grounding transformers and resistors
• Calculation of generator ground-fault current
• Sizing and rating of grounding equipment
• Detection of generator ground faults
• Examples and cases

High Voltage Substation Design Considerations
• An overview of safe grounding
• Substation ground grid
• Safety of personnel
• Electrical Code requirements
• Equipment protection
• Power system operating requirements
• Calculation of maximum ground fault current
• Distribution of ground currents
• Calculation of ground-potential-rise (GPR)


Day II

High Voltage Substation Design Considerations
• Hazards to individuals working in electrical substations
• Substation grounding system fundamentals
• Step voltage, touch voltage, mesh voltage
• Tolerable limits of body currents during power system faults
• Calculation of allowable step and touch potentials

High Voltage Design Considerations
• Effects of ground-potential-rise (GPR)
• Control of excessive ground-potential-rise
• Control of voltage gradients in high-voltage substations

Transferred Potentials
• GPR and transferred potentials
• Effects on telecommunications equipment
• Corrective measures
• Neutralizing transformers for telephone circuits
• Optical isolation equipment for telephone circuits

Design of Substation Grounding System
• Soil resistively measurements
• Area of ground grid
• Buried conductor and ground rods
• Design resistance of ground grid
• Measurement of ground grid resistance
• Treatment of substation fence

Questions and Answers and Feedback to Participants on Achievement of Learning Outcomes

Concluding Remarks and Final Adjournment

There will be a one-hour lunch break each day in addition to a refreshment and networking break during each morning and afternoon session.

Daily Schedule:
8:00    Registration and Coffee (Day I only)
8:30    Session begins
12:00  Lunch
4:30    Adjournment


Ajit Bapat
Ajit Bapat is well known in the electrical distribution field having served over 40 years in the industry. His expertise in the art and science of ground fault protection is acknowledged in North America. He holds Master's Degrees in Business Administration and Electrical Engineering, specializing in power systems and power system protection, and has particular interest in ground fault protection, digital metering systems, microprocessor based integrated systems for protection, metering, monitoring and control of power distribution systems. He is a member of Professional Engineers Ontario and a  senior life member of the IEEE.
Prerequisites & Certificates

Certificates offered

1.2 CEU / 12 PDH

Cancellation Policy
To withdraw from a course, you must send a request, in writing, with the official receipt to our office. Fifteen or more business days in advance: full refund less $50.00 administration charge. Five to fifteen business days in advance: non-refundable credit of equal value for any future EPIC seminar within one year. Credits are transferable within your organization. In case of an unexpected event occurring after this time, you may send someone else to take your place without any additional cost.
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Here are some reviews of the training vendor.
The course was very well presented and the course instructor was absolutely amazing.
Reviewed by 2013
Our instructor, Stephen Lamming, was outstanding and a true expert in his field. He was able to complement the technical air monitoring information with practical real life examples which was highly beneficial. He is an excellent communicator and was highly interactive with the course attendees. This course was recommended to me because Stephen Lamming does an outstanding job. I was very impressed with this course and have subsequently recommended it to my colleagues.
Reviewed by 2012
Would have liked more interactive problem solving.
Reviewed by 2011

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