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MEDIUM AND HIGH VOLTAGE- SUBSTATION GROUNDING

Click Here For Our 2-Day "Basic Grounding Course" Course- Content

Click Here For Our 3-Day "Advanced Grounding Course" Course- Content

Click Here For Our 2-Day "Grounding for the Petrochemical Industry" course- Content

Click Here For Our 2-Day "Grounding & Bonding for the Telecommunications Industry" Course- Content



Electrical Troubleshooting, Site Surveys

CONTACT US: pablodiaz@gstgrounding.com


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MEDIUM/HIGH VOLTAGE COURSE BENEFITS

Who Should Attend

  • Utility and Industrial Electrical Engineers and Engineering Technicians
  • Project Engineers
  • Design Engineers
  • Field Technicians
  • Electrical Technicians
  • Electricians
  • Plant Operators
  • Plant Engineers
  • Electrical Supervisors

After Attending, You Will Learn:

  • The basic principles of grounding of electrical systems
  • Protective or Safety grounding system
  • Safe and unsafe working conditions
  • Design considerations of a grounding grid for medium and high voltage
  • Measuring of ground resistance, resistivity in substations
  • Protection of substations from lightning energy

A properly designed and installed grounding system ensures reliable performance of electrical substations. Fast clearing of faults, made possible by good grounding, improves the overall safety and reliability of an electrical system.

This course will provide the basic principles of grounding a power supply network to ensure safety of personnel and equipment. Understanding these principles will provide the correct tools to design a grounding system applicable to utility networks and industrial plant distribution. This course covers the basic procedures in working safely on medium and high voltage systems.

OVERVIEW
  • Basics Of High Voltage Grounding
  • Electrical Bonding of High Voltage Systems
  • Proper Sizing of conductors
  • Grounding of Substations
  • High Voltage Surge protection
  • Electrical Grounding for lightning protection

DAY ONE

SUBSTATION GROUNDING DESIGN

Session 1: Definitions and Interpretations
  • Determination of Need of Personal Protective Grounding
  • Basic Criteria for Safe Grounding Practices
  • Electric Shock Hazard
  • Grounding practices
  • Basic design options
  • Soil resistivity
  • Ground fault currents
  • Fault clearing time

Session 2: Grounding Options

  • Ground Cable Assemblies
  • Grounding Cable Ampacities
  • Grounding Cable Reactance
  • Parallel Grounds
  • Grounding Clamps
  • Grounding Insulated Power Cable
  • Ground potential rise (GPR) in medium and high voltage systems

Session 3: Ground grid design for substations

  • Determination of Maximum Available Fault Current
  • Exposure Voltage Calculations for Plants & Switchyards
  • Touch and step potential
  • Transferred potential
  • Elimination of step and touch potential
  • Selection of the right connector
  • Horizontal Grid Design IEEE STD 80-2000
  • Introduction to 2-Layer soil Model
  • Vertical Rods Connected by a Grid
  • Temporary grounding

DAY TWO
Session 4: Switchyard and Substation Protective Grounding
  • General Considerations for placement of Protective Grounds
  • Power Circuit Breakers and Transformers
  • Disconnect Switches and Bus
  • Insulated High Voltage Cable
  • Cable Terminations
  • Midsections and Splices
  • Grounding Transformers and Phase Reactors
  • Capacitor Banks

Session 5: Power Line Protective Grounding

  • Grounding of Metal Transmission Structures
  • Slip Joints
  • Steel Pole Structures
  • Overhead Ground Wires
  • Structure Footing Ground
  • Grounding on Wood Pole Transmission Structures
  • Transmission Line Terminal Ground Switches
  • Grounding on Distribution Lines
  • Surface Equipment and Vehicle Grounding

Session 6: Technical Considerations in Protective Grounding in Substations and Switchyards

  • Substation Grounding System
  • Typical Shock Situations- Conditions of Danger
  • Structure touch
  • Electric Circuit for Witch Operator Sources of Hazardous Current on De-energized Equipment
  • Grounding and Jumpering Requirements
  • IEE Std 80-2000

International and Local Regulations

  • CSA
  • IEEE 80-2000, IEEE Guide for Safety in AC Substation Grounding, 2000
  • ASTM F 855-97 Standard Specifications for Temporary Protective Grounds
  • IEEE 1246-2002, IEEE Guide for Temporary Protective Grounding Systems Used in Substations
  • IEEE 1048-2003, IEEE Guide for Protective Grounding of Power Lines, 2003


Earn Continuing Education Unit (CEU) Credits

Successful completion of this course qualifies participants to receive a certificate of course completion with indicated CEUs. CEUs are granted by either "North Idaho College", "Gonzaga University", "IEEE" or the Engineering Institute of Canada. One CEU is equivalent to 10 professional development hours of instruction. The following course earns 1.4 CEUs.

COURSE BENEFITS

It has been determined that over 70 per cent of all electrical problems in industrial, commercial and institutional power systems are due to poor grounding and wiring errors. Without proper grounding, sensitive electronic equipment is subjected to destruction of data, erratic equipment operation, and catastrophic damage.
This electrical grounding seminar will give participants a comprehensive understanding of practical applications of proper grounding and wiring practices.

Increase Your Knowledge
· Focus on specific electrical grounding problems and consequences relating to fires, safety of personnel, and damage to equipment
· Participate in discussion of electrical grounding problems and how to overcome or avoid them
· Gain a firm foundation of knowledge for your next project involving electrical grounding
· Develop your knowledge of theory and practice

Learn About

· The requirements of the National Electrical, CEC in Canada and NOM 001 in Mexico.
· Specific grounding problems, installations and code requirements
· Testing procedures for residential, industrial, commercial and institutional electric power grounding systems
· Practical solutions to grounding problems

After Attending, You Will

· Work more safely and efficiently
· Have a better understanding of Article 250 in the 2005 N.E.C.®
· Be more aware of the benefits of good grounding systems
· Be better prepared to design your next grounding system

Who Should Attend

This electrical grounding course is a must for electrical engineers, design engineers, electrical engineering managers, project managers, power quality specialists, maintenance managers, consultants and technologists responsible for the design, construction, installation, inspection, operation, or maintenance of electrical systems, designers, contractors, and electrical technicians, inspectors, safety personnel and other employees responsible for the operation and maintenance of electrical grounding systems in a commercial, industrial, institutional or utility setting.

Effects of Poor Grounding

Without good grounding, sensitive electronic equipment is subjected to destruction of data, erratic equipment operation, and catastrophic damage.
Inductive effects of lighting including transients, wiring errors, and code violations cause damages estimated at about $20 billion dollars in the US and Canada each year.

The economics:

Loss of sales, Loss of production, Loss of work in process.

The knowledge acquired in this course will enable the participant to apply correct electrical installation procedures (CEC/NEC), effective cabling and state of the art technologies available for the protection of equipment and circuits. Code violation poses the greatest hazards to human life.

Other considerations:

Sometimes a system shut-down can cause a telecommunications company thousands of dollars per hour. To a petrochemical company, an unplanned shut down can cost millions of dollars.
With the practical application of the Electrical Code (CEC) and electrical grounding practices, which minimizes errors and loss of equipment, the cost of the course will be amortized many times over.
Other considerations are Warranties and Guarantees. For insurance validation, these warranties/guarantees are based on compliance with the Electrical Code (learned in this course).

CONTACT US: pablodiaz@gstgrounding.com




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ATESCO POWER LIMITED
Ainsley Aarón
2 Crown Trace
Lange Park, Chaguanas
Trinidad W.I.
Tel: 868 392-7283
Fax: 868 671-2191
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US 1-561-273-9720
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Cefeo 5 Col. Prado Churubusco
C.P. 04230
México, D.F.
Tel./Fax: 5581-5118
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Herrera y Cairo 1663 Col Ladrón de Guevara
Guadalajara, Jalisco 44660
México
Tel: 044 33 1328 0361
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Fraccionamiento La Rosita
CP 32551, Juarez, Chihuhua
México
Tel: 656-274- 8176
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