SAIEE WCC18: REGISTRATION FORM1865 Registration to be submitted by 20 November 2018

Transcription

1 SAIEE WCC18: REGISTRATION FORM1865 Registration to be submitted by 20 November 2018 Please book the following delegate/ attendee on the CPD course/ workshop as indicated above and in print below. Name and surname:... Designation:... address:... Telephone No:... Cell/ Mobile No:... Identification No:... SAIEE Membership No:... ECSA Registration No:... Dietary Requirement:... *Note: Dietary snacks may result in daily surcharge Full Company Name:... Company Postal Address:... Postal Code:... VAT number:... Non-Member Cost: R (Early R 9 000) AMEU Member Cost: R (Early R 8 190) SAIEE Member Cost: R 7 750(Early R 6 930) Payment Authorisation: Please indicate the person s whom is responsible for Authorisation Signature: Initials and Surname Contact Number Address Authorisation Payment HR/Training PAYMENT TERMS AND CONDITIONS: In order to qualify for the early bird discount, payment must be received before commencement of the workshop. However before payment is made please contact admin.wcape@saiee.org.za to ensure workshop is being held, as minimum attendance quota is required to present course/ workshop, by 20 November On receipt of completed registration form an INVOICE would be generated and return of Proof of Payment (POP) is required. CANCELLATION POLICY: - By completing the reservation form, you (attendee) are acknowledging personal responsibility for payment. - Cancellation received via before 20 November 2018 would not be penalised, however 50% cancellation fee will be levied if cancellation notification has been received after this date. - If no cancellation notice has been received and delegate is not in attendance at the course/ workshop, the attendee named above will be liable for the cost (full fee) and no further reservations would be accepted until outstanding invoice has been settled, as attendance certificates will only be distributed once fees has been paid. Attendee signature:... Add attendee onto SAIEE mailing list: Y / N Date:... Contact attendee about membership: Y / N

2 SAIEE WCC18: INFORMATION FORM1865 Related information for the course/ workshop This information sheet has been complied as marketing material for the course/ workshop as noted above. Substation Electrical Configurations and Reliability Substation Design Criteria Different substation types: Transformation vs. Switching, Transmission vs. Distribution vs. Collector substation Substation definitions according to Cigré: Components, Bays, Switchgear, Substation Substation Components and Arrangements Sub-transmission (132kV) substation example: Line Bay, Transformer Bay Substation availability and reliability Line bay topology for various levels of reliability Maintenance requirements: Redundancy, Access, Disconnection and Earthing Importance of Disconnectors Maintenance requirements for different types of switchgear Improving substation performance and reducing maintenance Manual disconnection devices Maintenance access Basic substation electrical configurations e.g. Double vs. Single busbar Sectionalised single busbar AIS Bus section arrangement facilitating maintenance Main and transfer busbar with bus-coupler Ring or meshed busbar Circuit-breaker-and-a-half Double breaker Relative cost and performance comparison Standby and Mobile transformers for reliability and availability MV switchgear layouts Double vs. Single busbar Substation clearances and spacings for AIS Basic electrical clearances definition: Earth, Phase and Isolation (Disconnection) Derivation of the clearances Earthing philosophy and Temporary Overvoltage (TOV) effect on clearances AIS vs. GIS clearances Working or section clearances for maintenance Derivation of vertical and horizontal safety clearances Safety barrier Earthing switches vs. portable conductors Standardized electrical and safety clearances Derivation of design spacings Standardised design dimensions Substation vertical profile (height) Tension busbar conductor spacing Rigid busbar spacing Disconnector influence on transverse bay and bus dimensions Standard bay spacings Access for maintenance vehicles Longitudinal spacing between equipment Height of equipment connections Insulation coordination Definition and basic principles of coordination Standards and Practical approach Overvoltage stresses Transient overvoltages and wave-shape and tolerances for testing: Lightning, Switching Origin of switching impulses Temporary overvoltages, origins and effects Statistical nature of overvoltages and insulation withstand Insulation level vs. surge protection margin U50 (CFO) vs. Insulation level (U90) Insulation media classes and withstand characteristics Large vs. small air gaps Voltage classes MV, HV, EHV CFO vs. air gap for Lightning and switching Length of insulator and air gap clearances for overhead lines Effect of relative air density (RAD) on withstand Altitude and de-rating of insulation Standards and correction for altitude

3 Overvoltage (Surge) Protection Various protective devices and their protective characteristics (e.g. Spark gaps, gapped and gapless arresters) Spark gaps or arcing horns Spark gaps applications, coordination of spark gaps in system Spark gaps risks and disadvantages Use on line and modification for HV and EHV applications Adjustable gaps Protection of insulators Reduction in CFO and performance of Overhead lines with spark gaps Modern gapless surge arresters Construction and Voltage-current characteristic Electrical selection of arresters Protective margin Residual voltage Maximum continuous operating voltage (MCOV) Rated voltage Energy capability and line discharge class Temporary Overvoltage capability and MCOV Arrester protective distance Environmental and mechanical selection Housing material and pollution performance Explosion risk and reinforcement of arresters Use of arresters for support Assembly of arresters and grading rings Substation arrester applications and installations Electrical Ratings and Insulation Levels Definition of IEC voltage classes Standard IEC voltages Rated voltage: Nominal and maximum system voltages Rated frequency Rated continuous current Rated short-time current withstand Rated peak current withstand Arcing distance in AIS Lightning impulse withstand Switching impulse withstand Power frequency withstand Standardised insulation levels Pollution Performance and Insulation Materials Insulation creepage distances IEC standard pollution severity classes Specifying creepages: Specific and Universal creepage Rationalisation of creepages based on environment and cost Measuring creepage Insulation materials and pollution performance Properties of common insulation materials o Toughened glass and Porcelain o Composite polymeric Hydrophobicity and effect on leakage current Vandalism Insulator cleaning Coatings and shed extenders Substation Busbar Design and Post Insulators Considerations for bus design: Steady state, corona, short circuit Tension (flexible) busbars: Features, advantages and disadvantages o Maintaining clearances o Substation profile etc. Rigid busbar: Features, advantages and disadvantages o Flexible and rigid connections to bay equipment o Various indoor and outdoor examples Tubular bus profiles and dimensions Mechanical rigidity and deflection Support of busbars on post insulators and disconnectors Post insulator cantilever loads e.g. Short circuit forces and wind Catering for thermal expansion Aeolian vibration: Implications and mitigation Flexible Conductors and Connectors Flexible conductor: Properties, materials, types Insulated conductors and connectors for vermin fault mitigation Other mitigations for faults due to animals Connectors: Properties, materials etc. Connector types: Compression vs. bolted Galvanic corrosion and joint compound Development of hot connections Bay stringing to cater for expansion Power Transformers Standards, definition and function Transformer design challenges The ideal transformer and ampere turns balance Leakage flux and its implications (losses etc.) Transformer types for power transmission and distribution Double wound transformers Auto-transformers Core type transformers 5-limb transformer Shell type transformer advantages Main components and function e.g. core, windings, paper, oil Insulation types and materials

4 Insulation levels Graded insulation Temperature rise Cellulose insulation and aging (degree of polymerisation DP) Transformer conservator Oil breathers and desiccants Online monitoring and dissolved gas analysis Dry type transformers: Applications, advantages, cost Gas insulated transformers Impedance and fault current Vector groups Parallel operation of transformers Cooling methods and ratings Losses and life-cycle cost evaluation Load and No-load losses Hysteresis losses, noise and core materials Core construction (laminations and step lapping) Continuously transposed conductor Circuit Breakers Standards, definition and function Design challenges and evolving technology Basic types: Live vs. dead tank Dead tank features and advantages Implications of cold operating temperatures: dielectric gas proportions Single and three pole operation Point on wave or controlled switching Interrupting medium Advantages of SF 6 Advantages of vacuum interrupters Contacts: Main and sacrificial contacts Breaking chambers Interrupter ratings and operating times Grading capacitors and insertion resistors Operating mechanisms Disconnecting circuit breaker (DCB) Specifying breakers Ratings for 132kV Disconnectors (Isolators) and Earth Switches Standards and disconnector function Disconnector types, features and advantages o Side and Vertical break o Centre break and rotate o Knee type and Pantograph Substation layout and disconnectors User specifiable dimensions Switching capabilities of isolators Load contacts Sacrificial / commutating contacts Ganged and single pole operation Manual and Motorised operation Motor drives Auxiliary contacts Earthing switches Integral earthing switches on disconnectors Philosophy of Portable earth conductors vs. switches Induction and trapped charge at Extra High Voltage levels Maintenance Specification for disconnectors Metalclad switchgear for MV distribution Standards General features Safety Internal arc rating and detection Comparison between SF 6 vs vacuum for MV application AIS features and disadvantages (safety, environmental etc.) Fixed pattern (GIS) advantages o Lifecycle cost o Performance and Safety Emergency and mobile switchgear Gas Insulated Switchgear Definition and Major Components GIS Construction Network Integration and Connections e.g. Cables, AIS Complete GIS Substations Outdoor applications Mobile GIS substations Mixed Technology Switchgear Different types of compact and combined switchgear Compact AIS Modules Development and Philosophy of Hybrid (Mixed Technology) Switchgear Specifications and Equipment Rating Plates Bay configurations Functional components Space savings with Hybrid switchgear Further Hybrid examples Maintenance philosophy Comparison between technologies: Advantages and Disadvantages Life-cycle costing comparison of the various technologies

5 SAIEE WCC18: INFORMATION FORM1865 Related information for the course/ workshop This information sheet has been complied as marketing material for the course/ workshop as noted above. SUBSTATION DESIGN AND EQUIPMENT SELECTION CPD COURSE DATES: December 2018 (8am-5pm est.) Non Member Cost:... R (Early payment: R 9 000) AMEU Member Cost:... R (Early payment: R 8 190) SAIEE Member Cost:... R (Early payment: R 6 930) Held at Venue:... Course Overview:... Electrical Substations play a disproportionately large role in the overall power system reliability. Designers must balance technical performance with cost, whilst still considering maintainability and availability to keep the overall lifecycle cost low. The design complexity is compounded by a multiplicity of switching configurations, and evolving switchgear technologies. The workshop not only provides theory and examples but also practical insights from projects and technology management. The material aims to demystify some of the confusion and contradictions by explaining why certain selections are made and the criteria they depend upon. Target Audience:... This course is aimed at engineers and technicians in plant, project and design, power systems, instrumentation and control, maintenance and consulting. Also engineering managers, Safety professionals, and field- and service staff. Upon completion of this course, you will receive 3 CPD Credits under validation number SAIEE-1865-V. Course Presenter:... Gavin Strelec is a registered Professional Engineer since 2003, with 20 years of related experience in the Electricity Utility Industry with Eskom in South Africa. He has gained considerable experience in Substation Design as a Project Engineer, and subsequently design standards and equipment specifications as a Substation Technology Specialist concentrating on medium and high voltage switchgear up to 132kV. For several years he was acting as Eskom national specialist for several substation equipment commodities, eventually appointed as a Chief Engineer in Distribution Technology. He presently holds the position of Chief Engineer in Eskom's Research Department. He has recently obtained his MSc with distinction in Lightning Performance of HVDC Transmission lines. He has been performing training seminars since August 2008 mainly on Substation Design but also Earthing and Overhead Line Design. He has presented in excess of 80 courses in various parts of South Africa, as well as the Democratic Republic of Congo, Ghana, Kenya and Uganda. His courses are always well received achieving high ratings from participating delegates. He uses many photographs and diagrams to communicate the principles and his presentation style is dynamic and engaging.

6 SAIEE WCC18: INFORMATION FORM1865 Related information for the course/ workshop This information sheet has been complied as marketing material for the course/ workshop as noted above. High level CV of course facilitator: Gavin Strelec MSc, PR Eng, MSAIEE Gavin Strelec received his BSc in Electrical Engineering at the University of the Witwatersrand in He is a registered Professional Engineer since 2003 and has 20 years of related experience in the Electricity Utility Industry with Eskom in South Africa. He has gained considerable experience in Substation Design as a Project Engineer, and subsequently in developing design standards and equipment specifications as a Substation Technology Specialist concentrating on MV and HV substation equipment up to 132kV. For several years he was acting Eskom national specialist for various substation equipment commodities and was then appointed as a Chief Engineer in Distribution Technology. He has chaired several national working groups seeking to standardise the approach to instrument transformer specification and copper theft. He presently holds the position of Chief Engineer in Eskom's Research Department. He obtained his MSc with distinction, and is pursuing a PhD in Lightning Protection. He has been performing training seminars since August 2008 mainly on Substation Design but also Earthing and Lightning Protection, Overhead Line Design, Power Distribution and Artificial Lighting Design. He has presented in excess of 80 courses in various parts of South Africa, as well as Botswana, Democratic Republic of Congo, Ghana, Kenya, Tanzania, Uganda and Zambia. All of the courses have been validated for Continuous Professional Development (CPD) credits and a large proportion has been for the South African Institute of Electrical Engineers. His courses are popular and achieve high ratings from participating delegates. Gavin uses many photographs and diagrams to communicate principles and his presentation style is dynamic and engaging. The presentations are a balance between theoretical considerations that deepen understanding, encouraging the application of first principles to solve design challenges, and practical aspects that empower the delegates to apply the information shared to their immediate benefit. Figure 1. Gavin presenting a paper at the International Conference on Lightning Protection in Poland

7 Figure 2. Gavin presenting a seminar on the Eradication of Copper Theft at the South African Institute of Electrical Engineers in Johannesburg Figure 3. Gavin presenting earthing training in the Democratic Republic of the Congo