Khethizwe Sukati

Engineer: Grid Performance at Joburg CityPower
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Contact Information
us****@****om
(386) 825-5501
Location
City of Johannesburg, Gauteng, South Africa, ZA
Languages
  • Siswati Full professional proficiency
  • ENGLISH Full professional proficiency

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Experience

    • Appliances, Electrical, and Electronics Manufacturing
    • 1 - 100 Employee
    • Engineer: Grid Performance
      • May 2023 - Present

      • Conduct power system analysis studies to optimise current Joburg CityPower network configuration and technical criteria using NRS 048-2, Technical Losses and Digsilent.• Conduct and compile network contingency plan for unplanned network configuration • Evaluate the planned outage and maintenance optimisation for the transmission and distributors • Provide technical support and guidance to the System Control • Conduct faults investigation analysis• Maintain network integrity and quality of supply for all network configuration conditions • Perform and lead a range of studies including: Grid Code compliance, Grid impact Study, Transmission planning studies, insulation coordination, switching studies, power quality studies, EMT Studies, transient and dynamic performance studies, and small signal analysis• Developing and recommending best practices for the conduct of system impact analysis (including electromagnetic transient analysis) of new renewable technologies, such as inverter-based generation, including wind, solar, and storage technologies.• Support, and manage dynamic system modelling information and studies• Technical analysis and performance assessment of Renewable Energies• Identify and execute high quality power energy solutions• Perform power system analysis including modelling, simulation, and evaluation of design alternatives• Lead the development/refinement of tools and techniques for power system simulation such as developing the City Power MV model on Digisilent Software.• Prepare and deliver technical reports, effectively communicate results to both internal and external colleagues by preparing written detailed and summary reports and making presentations describing analyses performed, solutions developed, and value propositions• Actively participate in Industry forums (Cigre, ECSA and SAIEE) to promote City Power solutions and technology Show less

    • Engineer: Outage Management System
      • Nov 2020 - May 2023

      Outage and Fault Analysis • Ensure all outages that require follow up are actioned. • Review of daily HV/MV/LV outages looking at fault causes and identifying any that require further action including repeat fault occurrences. • Prepare outage reports when required • Maintain a list of all unplanned outages that require actions. • Review outage data and make any corrections required • Take responsibility ensuring quality fault reportinformation is available.• Lead and participate in technical troubleshooting by performing break-fix, root-cause, and code-level analysis• Evaluate and investigate technical and operational issues that may negatively affect the OMS and the Network Performance• Research and optimize ways and systems to shorten restoration times, enhance public and worker safety, and improve communication with customers, the public and regulatory agencies.• Perform post fault analysis to improve business intelligence and network performance • Work with GIS, Digsilent powerfactory and SCADA support to develop systems for improved operational benefit. • Evaluate and update digital schematics based on the technical information provided by GIS, System Control, Asset Management, Field Services, and Dispatch.• Analyse, design and implement information and make correct inferences or draw accurate conclusions by developing theoretical models or approaches in field of expertise (e.g., engineering models, computational models• Use real-time network information for accurately evaluating how an outage impacts customers, how to prioritize responses, effectively assign field resource and better determine possibilities for backfeeding power• Contribute to where required unplanned, planned and loadshedding SAIDI and SAIFI improvements meetings and groups Show less

    • Senior Engineer (A): Outage Management System
      • May 2022 - Oct 2022

      • Engage with the Outage Planners, Managers, Co-ordinators and other stakeholders to drive outage certainty.• Ensure the outage schedules for the shutdown and turn- are planned timeously, adequately scoped and long lead items are in order to increase stakeholder dependence on quality of service• Actively engage with Communication Department and implement the process to ensure scoping, planning, execution and expediting is timely delivered.• Improve or advise Communication Department on the upcoming outages.• Engage with the internal stakeholders and Primary Plant to maximize opportunities. • Engage with the Communication Department before the outage is executed and to align with their expectations and KPI’s. • Build a database list for each power station and planned outages.• Create and maintain a site account profile for each station• Maintain a key contact list.• Evaluate trends, provide improvements on the performance of the network, OMS and mitigate on strategies.• Generate and submit reports for line management.• Any other job related duties as required from time to time• Analyse and consolidate all outage requirements and distribute to role players• Prepare and provide reports on outages on monthly basis• Ensure that outage requests are in terms of outage management process • Implement load shedding schedules for manual load shedding readiness• Share up-to-date schedules for operational use at the System Control Centre prioritising compliance with SATEPSA requirements. Show less

    • Senior Engineer (A): Outage Management System
      • May 2021 - Nov 2021

      Inspiring the team to meet exceptional Departmental goals and enhance Company performance

    • Candidate Engineer
      • Jun 2019 - Nov 2020

      Project Technical support • Provide technical support to Real Time Systems Team during development and commissioning of new systems • Commit to testing and analysis of new systems under development using real operational scenarios and using written test plans • Provide direction for user training activities• Participate in the design, development, testing and implementation of enhancements and software fixes resulting from trouble tickets and operational requests• Participate in software implementation and deployment activities• Test and Evaluate new enhancements and code fixes in pre-production technical environments.• Aid in developing business and technological requirements and technical or functional designs in support of functional and operational enhancement requestsOutage Management System• Work onsite or offsite, day-to-day with Dispatch, System Control and Field services Teams, supporting them operationally and technically, with the outage management system to help ensure operational efficiencies and system stability.• Provide support for all City Power teams that work with outage reporting data. • Provide quality control of planned and unplanned outages. • Ensure up to date outage data capture training documentation is available for the MAOS team. • Provide training and guidance to the MAOS and Field Services team, evaluating and revising when required in the use of these technical systems ensuring effective results are delivered • Work with the wider MAOS team to improve outage reporting and reduce data adjustments. • Analysis of complex fault records to ensure correct data is supplied for regulatory reporting • Assist with ensuring quality data is available for Regulatory reporting. • Provide technical support for Regulatory reporting audit • Write system documentation, including developer guides, design specifications, and topic papers• Ensure City Power has best practice use of OMS Show less

    • Engineer In Training
      • Apr 2018 - Jul 2019

      Perform commercial /retail/residential buildings electrical reticulation, lighting design, Electronic services (access control/smoke detection/evacuation) Develop designs for generators, uninterruptible power supplies (UPS), Single line diagrams, fault levels, Do site quality management: generating snag lists, quality assurance reports. Specify and assess quality relating to the equipment Perform commercial /retail/residential buildings electrical reticulation, lighting design, Electronic services (access control/smoke detection/evacuation) Develop designs for generators, uninterruptible power supplies (UPS), Single line diagrams, fault levels, Do site quality management: generating snag lists, quality assurance reports. Specify and assess quality relating to the equipment

    • South Africa
    • Higher Education
    • 700 & Above Employee
    • MSc Eng
      • Sep 2016 - Mar 2018

      As an MSc Candidate, my focus was on Research and develop new solution to address current challenges in the engineering field. The main objective of the research project was to study, develop and design a robust control system for a Direct Drive generator to improve offshore wind integration into the Eskom grid. Investigate the Low Voltage Ride Through capabilities as required in South Africa: - Develop a much improved fault ride through capabilities of PMSG - Compare it to the DFIG one from the Eskom Sere Wind Farm - Investigate the ability of a PMSG wind turbine to remain online during a faulted condition (low or zero voltage) and resume operation directly after clearance of the faulted condition without any mechanical switching operation - To support the voltage system during low voltage condition - Coordinate all the control system designs (reactive power control and voltage control) to improve the system performance during the LVRT event Show less

    • Vietnam
    • Restaurants
    • Chairman & Co-Founder
      • Jan 2013 - 2018

      Hosted a successful career day at Mcozini High School,Swaziland in July 2013. Approximately 1000 pupils benefited on this day from 5 different High Schools within the constituency. 3 top Swazi companies and 8 tertiary institutions participated. Hosted a successful career day at Mcozini High School,Swaziland in July 2013. Approximately 1000 pupils benefited on this day from 5 different High Schools within the constituency. 3 top Swazi companies and 8 tertiary institutions participated.

    • Türkiye
    • Primary and Secondary Education
    • 1 - 100 Employee
    • Student Teacher
      • Jan 2010 - Dec 2010

      - inspired pupils to do their Maths homeworks own their own than to copy - coached an inexperienced school team which reached the finals of a local private school tournament - inspired pupils to do their Maths homeworks own their own than to copy - coached an inexperienced school team which reached the finals of a local private school tournament

Education

  • University of KwaZulu-Natal
    Master of Science (MSc) in Engineering, Electrical Engineering
    2017 - 2018
  • University of KwaZulu-Natal
    Bachelor of Science (BSc)Engineering, elcetrical
    2011 - 2014
  • Ka-Boyce High School
    IGCSE, Physical Sciences
    2006 - 2008
  • Emcozini High school
    Junior certificate, Physical Sciences
    2004 - 2006

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