GROUNDING SYSTEMS. Design & Application Nov 2018, Dubai Nov 2019, Dubai

Transcription

1 04-08 Nov 2018, Dubai Nov 2019, Dubai

2 Introduction Effective implementation of ground connections in large power systems and distribution and load centres plays an important role in maintaining power system safety and reliability. In fact, grounding systems provide a common point of reference to the live electrical conductors of a power supply network, and provide a path for surge currents to flow to the soil mass. This ensures the safety of the personnel and the public by clamping the exposed conducting enclosure of electrical equipment at ground potential. Correct grounding techniques have a decisive role in controlling and mitigating electrical noise, while improper grounding can result in many problems in the power system and associated control and communication systems. Therefore, professional engineers and technicians dealing with power supply equipment and networks need to master the principles of grounding system design and its role in the safety of equipment and personnel that can help avoid mistakes in grounding system design criteria and assumptions. In fact, such mistakes can inflict massive financial losses to the system due to failures and long downtime. Grounding Systems focuses on the concepts of grounding as applies to utility networks, industrial plant distribution systems and their associated control equipment. This training covers different grounding methods and their applications. This GLOMACS training seminar discusses the pros and cons of each grounding method as recommended by most acceptable global standards. Grounding Systems is enriched in many related grounding concepts and also common power system failures and damages that are related to either inefficiency of the grounding system and its configuration, or to the wrong selection of protection devices in specific areas. This GLOMACS training seminar involves a wealth of worked examples and case studies for better understanding and practice of the participants. This GLOMACS Electrical Engineering training seminar, in fact provides a quick review on the principles of electrical grounding practices and it concentrates on the technical specifications of earthing grids as well as the operation and response of power system protection devices and controllers. This GLOMACS training seminar will highlight: Ground connections and bonding Different grounding practices and their features Power system disturbances and mitigation techniques using grounding systems Surge and lightning protection Substation grounding system design and calculations Selection of suitable grounding protection devices Objectives At the end of this GLOMACS training seminar, you will learn: Main concepts of grounding system design and associated calculations Risk assessment and mitigation techniques as related to power system disturbances How to analyze and calculate appropriate grounding systems for substations Soil layers specifications, testing, and selection of earthing rods Principles of lightning and surge protection Training Methodology Grounding Systems will be presented by means of power point slides through which all the required theory and equations will be provided. This GLOMACS training seminar also includes case studies where the participants are required to take part in class activities including system analysis, calculations, relay settings, etc. The instructor will also use training videos for better understanding of the participants. The participants will be progressively assessed during the course via quizzes, questions, assignments, and worked examples. GLOMACS Training and Consultancy

3 Organisational Impact Who Should Attend? On successful completion, the organizational impact would be: Learn about the need for effective grounding systems plus technical considerations Identify power system hazards and learn about safety measures Get a good understanding of different grounding methods and equipotential bonding Develop a structured approach to establish efficient substation earthing grid and its components Learn about harmonics, power swing and oscillations, switching impulse, and electrical noise We encourage the staff involved in the operation, planning, design, and maintenance of power systems to attend this course. This GLOMACS Electrical Engineering training course is suitable to a wide range of professionals but will greatly benefit: Project Engineers / Managers Electrical Engineers / Technicians System Operators Design Engineers Asset Engineers / Managers Planning Engineers / Managers Protection, Instrumentation, and Commissioning Engineers / Technicians Become familiar with soil resistivity testing and selection of grounding electrodes PERSONAL IMPACT Participants from different sectors of engineering companies will enormously benefit from this GLOMACS training course because they will become quite familiar with: Approved Centre Grounding systems objectives and configurations Hazards due to improper grounding system including touch and step potentials Step-by-step procedure for the establishment of grounding system in substations Power quality issues and the associated mitigation techniques REP logo, PMI & PMP are registered trademarks of Project Management Institute, Inc. GLOMACS Training and Consultancy

4 Seminar Outline DAY 1 Need for Grounding Systems Electric Fault Consequences of Fault Arc Flash Boundary Types of Fault Protective Personal Equipment (PPE) Grounding Fundamentals Bonding Ground Electrodes Grounding of Electrical Substations Elimination of Static Charges by appropriate Grounding Impact of Lightning on Power Systems Surge Protection Noise Mitigation Lightning Strike Effect of Lightning on Power Lines Lightning Protection Methods Formation of Static Charges Hazards associated with Static Charge Build-up Spark Energy and Ignition Capability Assessment & Control of Static Charge DAY 2 Types of Grounding Systems Ungrounded Systems Solidly Grounded Systems Resistance Grounding using NER Impedance Grounding using Neutral Reactor Shock Hazard Grounding of Equipment Protective Devices Thermal Capability Touch Potential Step Potential Induced Voltage Mitigation EMI Suppression Metal Enclosure for Grounding Conductors Surge Protection via Grounding Connections Earth Fault Protection Sensitivity TN Systems TN-C System TN-S System TN-C-S System TT System DAY 3 Per Unit System Measuring Transformers (CT and VT) Overcurrent Protection Earth Fault Protection IDMT O/C & E/F Protection Transformer O/C and E/F Protection DAY 4 Grounding Systems Studies Soil Resistance Soil Resistivity Measurement Techniques & Interpretations Resistance of Dingle Rod Electrode Use of Multiple Ground Electrodes (earthing rods) in Parallel Current carrying capacity of Ground Electrodes Measurement of Ground Electrode Resistance Chemical Electrodes and Corrosion Problems Approach to Grounding System Design Ground Fault Current Grounding of HV Substations Grounding of MV & LV Installations Grounding Grid for HV Outdoor Substation Soil Resistivity Calculations using Multi-layer Models Transferred Voltage Design considerations for Effective Substation Grounding Lightning Strike Probability & Incidence Lightning Risk Assessment DAY 5 Lightning Protection & Noise Mitigation Impacts of Lightning impacts on Power Lines Principles of Lightning Protection Power Systems Surges and their Impacts Equipotential Bonding Principles of Surge Protection Selection of Lightning / Surge Arrestor Electrical Noise and its Impacts Noise Categories Noise Disturbance on Distribution Systems and Data Cables Ground Loop as a Source of Noise Electrostatic / Capacitive Coupling Shielded Isolation Transformer Ground Loop Mitigation Power System Harmonics and their Impacts UPS Configurations Ground Faults and Related Protection Techniques Circuit Breaker Protection Fuse Protection Relay Protection Protection Criteria Sequence Networks Grounding Systems

5 Code Date Venue Fees EL Nov 2018 Dubai $4,750 EL Nov 2019 Dubai $4,950 REGISTRATION DETAILS LAST NAME: FIRST NAME: DESIGNATION: COMPANY: ADDRESS: CITY: COUNTRY: TELEPHONE: MOBILE: FAX: AUTHORISATION DETAILS AUTHORISED BY: DESIGNATION: COMPANY: ADDRESS: CITY: COUNTRY: TELEPHONE: MOBILE: FAX: PAYMENT DETAILS q Please invoice my company q Cheque payable to GLOMACS q Please invoice me CERTIFICATION Successful participants will receive GLOMACS Certificate of Completion 4 WAYS TO REGISTER Tel: +971 (04) Fax: +971 (04) info@glomacs.com Website: TERMS AND CONDITIONS Fees Each fee is inclusive of Documentation, Lunch and refreshments served during the entire seminar. Mode of Payment The delegate has the option to pay the course fee directly or request to send an invoice to his/her company/ sponsor. Credit card and cheque payments are both acceptable. Cancellation / Substitution Request for seminar cancellation must be made in writing & received three (3) weeks prior to the seminar date. A US$ processing fee will be charged per delegate for each cancellation. Thereafter, we regret that we are unable to refund any fees due, although in such cases we would be happy to welcome a colleague who would substitute for you. Hotel Accommodation is not included in the course fee. A reduced corporate rate and a limited number of rooms may be available for attendees wishing to stay at the hotel venue. Requests for hotel reservations should be made at least three (3) weeks prior to the commencement of the seminar. All hotel accommodation is strictly subject to availability and terms and conditions imposed by the hotel will apply. Attendance Certificate a certificate of attendance will only be awarded to those delegates who successfully completed/ attended the entire seminar including the awarding of applicable Continuing Professional Education Units/Hours. Force Majeure any circumstances beyond the control of the Company may necessitate postponement, change of seminar venue or substitution of assigned Instructor. The Company reserves the right to exercise this clause and implement such amendments. Fair Access / Equal Opportunities In the provision of its services as a world-class Training Provider, the Company is committed to provide fair access / equal opportunities throughout the delivery of its courses and assessment leading to the completion of training seminars, or 3rd party qualifications/certifications. Connect with Us On LinkedIn P.O. Box Dubai, U.A.E. T: +971 (04) F: +971 (04) E: info@glomacs.com W: Scan the QR Code* to visit and connect to our LinkedIn profile. *Requires QR code reader/scanner application to be installed on your smartphone.