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Velimir P. Lackovic

Velimir P. Lackovic

Velimir P. Lackovic is a chartered electrical engineer with more than 26 years of experience in EHV/MV equipment and substation protection and control engineering in the UK, Germany, Brazil, South Africa, UAE, Qatar, Bahrain and USA. He has expertise in power system modelling, fault level calculations for interconnected power systems, industrial networks and wind farms. Mr. Lackovic is experienced in performing grid code compliance studies involving protection co-ordination, fault clearance time (stability), protection setting policies, relay settings for power systems, wind farms and power generation plants.

Mr. Lackovic began his career in the Electrical Engineering Institute “Nikola Tesla” Belgrade as a Project Engineer working on various distribution system planning projects. He is a member of the Institution of Engineering and Technology.

Mr. Lackovic earned a MSc Electrical Power Systems from the University of Strathclyde and a BSc (Hons) Electrical and Electronic Engineering from the City University, London.

Courses Provided by Velimir P. Lackovic

EE-05-901 Power System Short Circuit Current Studies – 5 PDH
This course presents short-circuit studies by developing a simple equivalent circuit for a generic power system, calculating system impedances to a common base and fault at various locations throughout the system. A detailed explanation is offered for calculation of three phase faults.
EE-03-902 Power System Transient Stability Study Fundamentals – 3 PDH
This course reviews transient stability calculations by demonstrating modelling technique for a generic power system and dynamic equipment, and detailed for selected disturbances throughout the system. A detailed explanation of modelling and calculation procedure is offered.
EE-03-903 Distance Protection of Electrical Power Systems – 3 PDH
This course presents the fundamentals of distance protection and includes a detailed discussion of its technical implementation. Upon successful completion engineers will be able to address key distance protection concepts, terms, zones and characteristics.
EE-04-904 Gas Insulated Substation Definitions And Basics – 4 PDH
This course presents an overview of Gas Insulated Substation (GIS) technology. It covers fundamental terms, rated voltages and insulation levels, GIS availability and reliability, operating principles, substation arrangements and design, power system and financial considerations.
EE-03-906 Grounding System Theory and Practice – 3 PDH
This introductory course on grounding system design presents the fundamentals of grounding practices and related safety issues. It addresses various grounding problems, modelling of grounding systems, and calculation of step and touch voltages.
EE-05-907 Harmonic Analysis Basics – 5 PDH
This course provides an introduction to harmonic theory. It addresses various power quality phenomena and explains how electrical systems are modelled for the purpose of harmonic calculations and how harmonic filters are sized.
EE-04-908 Introduction to Motor Starting Analysis – 4 PDH
This course presents an introduction to the methods and procedures used in the analysis of motor starting. It includes numerous diagrams and waveforms to demonstrate how large motors are started in large industrial systems.
EE-03-909 Introduction to Protective Device Coordination Analysis – 3 PDH
This introductory course explains the analysis of protective device coordination. It presents a modelling technique for a generic power system, outlines the modelling of protective relays in detail, and determines the relay settings based on short circuit current .
EE-02-910 Limiting Arc Flash Exposure – 2 PDH
This course presents methods to limit arc flash exposure. It reviews preventive operation, limiting fault currents and adjustments of protection settings and personal protective equipment.
EE-05-912 Arc Flash Calculation Methods – 5 PDH
This course provides an overview of arc flash calculation methods including approach boundaries, incident energy, calculation of the arcing time, determining risk category, information presented on single line diagrams, reports and labels.
EE-03-913 Arc Flash Basics and Hazard Planning Program – 3 PDH
This course presents the fundamentals of arc flash assessment and presents arc flash nature and causes, NFPA 70E protection boundaries, personal protective equipment, hazard classification, hazard study methods, mitigation measures and arc flash hazard planning program.
EE-05-914 Overcurrent Protection Fundamentals – 5 PDH
This course is provides an overview of overcurrent protection fundamentals. It presents coordination technique, rules for time/current grading, IDMT overcurrent protection curves, grading relay-relay, fuse-fuse and fuse-relay, directional protection and ground fault protection.
EE-04-917 Power Quality Measurements – Essential Theory – 4 PDH
This course describes how to develop a quality program for measuring and evaluating power quality problems. It covers sampling and measurement techniques, statistical methods, and practical data collection procedures.
EE-04-919 Practical Power Cable Ampacity Analysis – 4 PDH
This course provides an overview of methods used to analyze power cable ampacity. It reviews the application of thermal equivalents of Ohm’s and Kirchoff’s laws to a thermal circuit and complicating factors related to ampacity calculations.
EE-04-920 Principles of HVDC Transmission – 4 PDH
This course presents the basic principles of HVDC transmission. It reviews the technical implementation and exploitation of HVDC systems, the basic arrangements (six pulse and twelve pulse), substation arrangements, operation and protection and voltage control.
EE-04-921 PV Systems Safety – 4 PDH
This course is intended to be a reference with helpful and easily-accessible instructions on how to work safely with photovoltaic (PV) systems. It includes description of specific hazards, their frequent causes, and strategies to prevent and avoid them.
EE-04-922 Shunt Capacitor Bank Design and Protection Basics – 4 PDH
This course presents the fundamentals of capacitor unit operation and the associated protection principles. It covers issues related to technical implementation and exploitation of capacitor bank systems.
EE-04-927 Switching Transients Analysis Fundamentals – 4 PDH
This course begins discusses the switching transient phenomena, describes their root causes, and explains their effect on system operation. It includes a detailed explanation of modelling and calculation procedures, and reviews the selection and sizing of surge arresters.
EE-06-929 AC Motor Protection – 6PDH
This course presents the fundamentals of AC motor protection. It covers AC motor protection terminology and concepts and techniques that are used for overload, single phasing, under-voltages, unbalanced supply and reverse phase sequence faults.
EE-04-930 Fundamentals of Measurement Transducers and Synchronizers – 4 PDH
This course provides an understanding of basic power system measurement techniques and instrument operation principles. It covers transducer characteristics and their inputs and outputs, instrument accuracy, transducer selection, tariff metering, synchronizers and disturbance recorders.
EE-08-931 High Voltage Busbar Protection – 8 PDH
This course is suitable for electrical engineers with a desire to understand the fundamentals of high voltage busbar protection. It cover key technical concepts, design arrangements and protection methods.
EE-06-932 HVDC Technology – Part 1 – 6 PDH
This course is suitable for electrical engineers with a desire to understand basic HVDC technology design and operation principles. It addresses HVDC configurations, HVDC substation design arrangements and equipment, converter operation and control.
EE-05-933 HVDC Technology – Part 2 – 5 PDH
This course covers HVDC configurations, HVDC substation design arrangements and equipment, converter operation and control, effects of harmonics in power system, filter design and HVDC power and frequency control schemes.
EE-07-934 Industrial System Protection – 7 PDH
This course covers the protection of different equipment such as motors, feeders and transformers. It provides a detailed description of MCBs, MCCBs, fuses, different circuit breaker technologies and relays provided.
EE-10-935 Power Transformer Protection – 10 PDH
This course presents details related to interturn, tank and core faults. Information on over-voltages, magnetizing inrush, overheating is also included. It also includes information on over-voltages, magnetizing inrush, and overheating.
EE-10-936 Protection Relay Testing and Commissioning – 10 PDH
This course covers basic testing terminology, various tests including factory production, type tests, commissioning and maintenance tests.
EE-06-937 Unit Protection of Feeders – 6 PDH
This online engineering PDH course presents the concepts of electrical unit protection and their particular applications to high voltage feeders. It covers basic unit protection concepts and their particular applications to high voltage feeders.
EE-04-941 Arc Flash Hazard Calculations in DC systems – 4 PDH
This course covers issues related to DC fault calculation, DC protection equipment and DC arc flash energy calculation.
EE-03-942 Arc Flash Resistant Equipment – 3 PDH
This course provides a detailed summary of arc flash resistant equipment. It presents information on IEEE and IEC equipment accessibility types, arc resistant ratings and testing procedures according to IEEE standards.
EE-06-943 Recent Trends and Innovations in Arc Flash Assessments – 6 PDH
This course provides an overview of the recent trends and innovations in the arc flash assessment. It addresses low and medium voltage protection principles, arc flash hazard reduction techniques and new equipment design features that are used for arc flash reduction.
EE-06-944 Operation and Maintenance of a Gas Insulated Substation – 6 PDH
This course provides an overview of the recent trends and innovations in the arc flash assessment. It addresses low and medium voltage protection principles, arc flash hazard reduction techniques and new equipment design features that are used for arc flash reduction.
EE-04-945 Gas Insulated Substation Installation – 4 PDH
This course provides practical information that has been collected from a number of different GIS projects. It reviews safety standards and presents useful assembly tips.
EE-04-946 Gas Insulated Substation Testing and Applications – 4 PDH
This course provides practical information that has been collected from a number of different GIS projects. It reviews safety standards and presents useful assembly tips.
EE-08-947 Mechanical Design of Overhead Lines – 8 PDH
This course focuses on the different aspects of mechanical design of overhead lines. It addresses t he elements of overhead lines, design principles, calculation methods and factors that affect overall current carrying capacity.
EE-06-948 Gas Insulated Substation Control and Monitoring – 6 PDH
This course presents an overview of gas monitoring, partial discharge tests, and circuit breaker monitoring. Topics include the latest standards, regulations and relevant industry practice.
EE-03-949 Current Transformers – 3 PDH
This course covers measurement error, protection and measurement cores, accuracy classes, core selection and necessary technical requirements that current transformers have to meet.
EE-03-950 Earth Fault Protection – 3 PDH
This course describes protection principles for solidly (effectively), reactance, high resistance and resonance grounded electrical systems.
EE-04-951 Generator Protection – 4 PDH
This course addresses the fundamentals of generator protection. It covers design-related challenges related to generator protection and the technical implementation of those solutions.
EE-03-952 Low Voltage Switchgear – 3 PDH
This course covers MCCBs, insulated case circuit breakers, power circuit breakers and fused power circuit breakers. It also discusses different monitoring and protection packages currently available.
EE-03-953 Power Cable Testing – 3 PDH
This course covers power cable testing procedures including visual inspection, cable failures and their analysis, insulation and conductor defects, field testing of medium voltage cables and different cable testing methods.
EE-03-954 Power Transformer Maintenance – 3 PDH
This course provides an overview of the typical procedures that are performed as part of transformer preventive maintenance. It covers issues related to transformer installation, acceptance and different maintenance strategies that are applicable to various types of transformers.
EE-03-955 Power Transformer Testing – 3 PDH
This course provides a detailed review of online condition monitoring and assessment of transformers, bushings, and lighting arresters.
EE-04-956 Voltage Transformers – 4 PDH
This course covers basic engineering laws, measuring error, voltage factor, burden and accuracy class, non-linear burdens, different voltage transformer winding connections, Ferro resonance and specific applications for protection schemes related to voltage transformers.