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Available in second quarter 2018. Please contact us for details .

Harmonics Investigation

Harmonics Investigation

Course Description and Fees
            This five days course focuses on Harmonics Investigation which are caused by the distortion of wave shape from the sinusoidal form. Power waveform distortion can occur due to the use of non-linear loads, electronic based switching equipment, fluorescent and other gas discharging lighting, pulse modulated applications, components which employ magnetic circuits, arc furnaces, etc.
           Alternatively, power quality problems can be generated by inappropriate power network operation, cycling load connection (large motors), new large load connection to a weak power supply network, etc.
           Good quality power can be generated and maintained by adhering to appropriate standards while planning the system and by operating the system based on the appropriate standards, regulations and code of practice.
A full appreciation of the problem of poor quality requires an understanding of the following issues:

• Sources of waveform distortion;
• Measurement of waveform distortion;
• Effects of waveform distortion;
• Solutions to problems caused by waveform distortion .

            All the above items are presented during the course. The Course, step by step provides a theoretical introduction to Harmonics Investigation, follows by the ways of solving the Harmonic issues. The Case Study provides the guide on investigating the Harmonics and how to design a Harmonic Filter.
           Computer modeling using DesignBase and SKM professional software are described step by step in the Course.
Course + Materials Fee: Please contact C&M Collaborative Technologies WLL
Course Author and Trainer: Prof. Dr. Silviu Darie, PhD(EE), PE(EE)

Harmonics Investigation
Five days course

Agenda :

Day 1: 8 hours:
Harmonics in Power Systems
            a. Review of Power Systems Harmonics Sources
                      i. Harmonics Causes: Non Linear Loads
                      ii. Harmonics Voltage Have Forms and Spectrum;
                      iii. Harmonics Current Have Forms and Spectrum;
                      iv. Effects of Voltage and Current Distortion:
           b. Effects on Power Transformer;
           c. Effects on Generators and Motors;
           d. Capacitors;
           e. Protective Equipment;
           f. Measuring Equipment;

Day 2: 8 Hours:
           a. Power Quality Standards
           b. Harmonics Investigation:
                      i. Site Measurement and Data Collection;
                      ii. Selection of Appropriate Tools;
                      iii. Harmonics Indicators;
           c. VFDs and Harmonics

Day 3: 8 Hours:
Site Data Collection:
           Available Short Circuit Contribution;
           PCC – Point of Common Coupling;
           Electrical Loads and Motors;
           Capacitor Banks;
           IEEE or IEC Standards;

Day 4: 8 Hours:
           Harmonics Analysis;
           Bus Voltage Waveforms, Spectrum and Voltage Total Harmonics Distortion;
           Branch Current Waveforms, Spectrum and Current Total Harmonics Distortion;
           Voltage Harmonics Indices;
           Current Harmonics Indices;
           THD Violations

Day 5: 8 Hours:
           Numerical Examples using:
                      SKM Professional Software;
                      DesignBase Professional Software;
                      Generate the model one line diagram;
                      Input Data: Power Utility, Power Transformer, Feeders/Cables, Induction Motors
           IEEE Standards;
           IEC Standards;
           Harmonics Filter Design:
                      Site Filter Locations;
                      Data Collection;
                      Filter Design.
                      Harmonics Mitigation

Daily Program Schedule:
  8:00 – 12:00 Morning Session
12:00 – 13:00 Lunch
13:30 – 17:00 Afternoon Session

In-House Training:
Cost effective in-house courses, tailored specifically to your organization’s needs, can be arranged at your preferred location and time. If you would like to discuss further, please contact C&M Collaborative Technologies.

Mastering Power Faults

Mastering Power Faults

A guide and tools based on IEC and IEEE Standards

Course description & objectives:
           This is a five days course on short circuit current investigation and has been written based on the author’s experience of more than 40 years in consultancy, education and research. Parts of this Course are from the author’s training courses conducted in USA, Canada, China, South Africa, Singapore, Malaysia and Romania. More than 3,000 consultancy engineers have attended these training courses.
           The course covers various aspects of power fault calculation and analysis. It includes the theory, practical aspects, modeling and analysis. IEEE and IEC standards are presented including particulars of each standard, their similarities and differences. Powerful tools are presented as a demonstration for all application: Paladin DesignBase, SKM and Easy Power professional software.
           After completing this Course, the attendees will be able to understand why fault analysis is important, how it is achieved and the study methods used to assess power fault. More, in addition the attendee will also have a more comprehensive understanding of the theory of power fault, factors that influence fault levels, how the faulted level can be reduced and the tools and techniques of fault analysis.
           This Course is addressed to electrical engineers, heads of departments, staff officers, plant and project managers, system and software engineers, researchers and operators responsible for:
                      • Utility
                      • Plant
                      • Electrical Engineering
                      • Electric system and operators
                      • Maintenance and power quality
                      • Energy control and measurement
                      • Transmission and distribution

Course + Materials Fee: Please contact C&M Collaborative Technologies WLL
Course Author and Trainer : Prof. Dr. Silviu Darie, PhD(EE), PE(EE)

Mastering Power Faults
A Guide and Tools Based on IEEE and IEC Standards
5 days Course

Day 1: 8 hours:
Reviewing of Power Systems Components Computation Methods and Analysis
           a. Review of Power Systems Computation Methods:
                      i. Per Unit Method;
                      ii. Symmetrical Components
           b. Models and Constants in Power System Analysis:
                      i. Synchronous Generator Model and Constants;
                      ii. Power Transformer Model and Constants;
                      iii. Induction Motor Model and Constants;

Day 2: 8 Hours:
           a. Models and Constants in Power System Analysis (cont.):
                      iv. Feeder / Cable Model and Constants;
                      v. Overhead Line Model and Constants;
                      vi. Static Load Model and Constants;
           b. Numerical Examples and practical Exercise.

Day 3 : 8 Hours:
           Types of Faults
                      c. Balanced 3 Phase Short-circuit;
                      d. Unbalanced Current Faults: L-L, L-L-G, L-G;
                      e. Terminology in Short Circuit Analysis.
           Assessing International Standards on Short Circuit Current Analysis:
                      f. IEEE Standards;
                      g. IEC Standards;
                      h. When and Where to Use IEEE or IEC Standards;

Day 4 : 8 Hours:
           Short Circuit Current Magnitude and Shape.
           Tools and Techniques in Short Circuit Analysis:
           Professional Power System Software: ETAP, SKM, DesignBase, Easy Power
           Practical Short Circuit Current Calculation Using: SKM, DesignBase, Easy Power.

Day 5 : 8 Hours:
           Numerical Examples using:
                      i. SKM;
                      j. DesignBase;
                      k. Easy Power.
           Generate the model one line diagram;
           Input Data: Power Utility, Power Transformer, Feeders/Cables, Induction Motors
           Short Circuit Based on IEEE Standard Calculation;
           Short Circuit Based on IEC Standard;
           Reports on Short Circuit Current Calculation;
           Power System Components Evaluation.

Program Schedule:
  8:00 – 12:00 Morning Session
12:00 – 13:00 Lunch;
13:30 – 17:00 Course

In-House Training:
           Cost effective in-house courses, tailored specifically to your organization’s needs, can be arranged at your preferred location and time. If you would like to discuss further, please contact C&M Collaborative Environments WLL .

Motor Starting Impact to Power Distribution System

Motor starting impact to the distribution  Power System

The course covers various aspects of Motor Starting Impact to power distribution system.
           It includes the theory, practical aspects, modeling and analysis. IEEE and IEC standards are presented including particulars of each standard, their similarities and differences. Powerful tools are presented as a demonstration for all application: Paladin DesignBase, SKM and Easy Power professional software.
           After completing this Course, the attendees will be able to understand why Motor Starting is important in power system design and operation, how it is achieved and the study methods used to assess the system impact. More, in addition the attendee will also have a more comprehensive understanding of the theory of motor starting, what is the difference between motor name plate data and motor electrical performances, factors that influence the motor starting, voltage drops during stating the motor, ways of starting the motor; how the impact of motor starting can be reduced and the tools and techniques of motor starting analysis.
           This Course is addressed to electrical engineers, heads of departments, staff officers, plant and project managers, system and software engineers, researchers and operators responsible for:
                      – Utility
                      – Plant
                      – Electrical Engineering
                      – Electric system and operators
                      – Maintenance and power quality
                      – Energy control and measurement
                      – Transmission and distribution

Course Fee: Please contact C&M Collaborative Technologies WLL
Course Author and Trainer: Prof.Dr.  Silviu Darie, PhD(EE), PE(EE)

Motor starting impact to the distribution  Power System

Three Days Course Agenda

Day 1: 8 hours:

Scope of Motor Starting:

  • The impact of starting a motor or a group of motors to the power system supply (motor starting based on power flow);
  • To provide the motor performances at the motor terminal while starting the motor (dynamic motor starting).
  • To provide the system performances while stating the motor – motor starting based on Transient System Analysis. This method requires the steady state model plus the dynamic model of the power system. This method s is used to calibrate and regulate the generators which supply the system. The method is used in particular for motor sequencing for off shore oil platform.

Available starting methods:
            – Full Voltage
            – Full Voltage Square with three types of controls.  These controls are function of Time, % Motor Voltage, %Motor Speed.
            – Wye-Delta with three types of controls. This controller switches the motor from star connected to delta connected. These controls are function of Time, % Motor Voltage, %Motor Speed.
            – Auto-Transformer with three types of controls. This controller modifies the tap setting in up to two steps.  These steps are controlled as function of Time, % Motor Voltage, %Motor Speed.
            – Part Winding with three types of controls.  This controller modifies the tap setting in up to five steps. These steps are controlled as function of Time, % Motor Voltage, %Motor Speed.
            – Series Resistance with three types of controls. This controller reduces the amount of series impedance in up to five steps. These steps are controlled as function of Time, % Motor Voltage, %Motor Speed.
            – Series Reactance with three types of controls. This controller reduces the amount of series reactance in up to five steps. These steps are controlled as function of Time, % Motor Voltage, %Motor Speed.
            – Shunt Capacitance with three types of controls. This controller reduces the amount of supplied reactive power in up to five steps. These steps are controlled as function of Time, % Motor Voltage, %Motor Speed.
            – Solid State Voltage Control with three types of controls. This controller reduces the tap setting in up to five steps. These steps are controlled as function of Time, % Motor Voltage, %Motor Speed.
            – Solid State Current Limit – this controller set’s the motor’s current limit to the current pu value specified.
            – Solid State Current Ramp- this controller increases the current gradually from the first value to the end value over the Tramp (Time2 – Time 1).
            – Solid State Voltage Ramp – this controller increases the voltage gradually from the first value to the end value over the Tramp (Time2 – Time 1).
            – Solid State Torque Ramp – this controller increases the torque gradually from the first value to the end value over the Tramp (Time2 – Time 1).
            – Variable Frequency Drive – this controller provides higher starting torque.  This means that the motor starting current is higher but the design of the VF is trade off between the requirement of high starting torque and motor withstand capability of carrying higher current.

Day 2: 8 hours:

Direct Motor Starting based on Power Flow – the most usual / popular procedure for starting the motors.

  • The maximum starting current at the instant of starting the motor in the motor feeder;
  • The maximum voltage drop at all system busses;
  • The power flow in the system branches while motor starts;
  • Voltage control during starting the motor.

Day 3: 8 Hours:

Dynamic Motor Starting – the procedure to determine the motor performances at the motor terminal while starting the motor.

  • Motor bus voltage profile;
  • Motor bus frequency profile;
  • Motor speed in pu;
  • Motor current in pu;

Case study examples;
Motor Starting using professional power system software: SKM, DesignBase, Easy Power.

Program Schedule:
  8:00 – 12:00 Morning Session
12:00 – 13:00 Lunch;
13:30 – 17:00 Afternoon Session

In-House Training:
Cost effective in-house courses, tailored specifically to your organization’s needs, can be arranged at your preferred location and time. If you would like to discuss further, please contact C&M Collaborative Technologies .

             

About the Author

About the Author

            Professor Dr. Silviu Darie, PhD(EE) has over 40 years experience of university level electrical engineering instruction, industry consultancy and training in power system analysis computer application.
           Dr. Darie has extensive international experience with projects and courses in several countries such as Romania, South Africa, New Zealand, Saudi Arabia and USA in electrical energy distribution, electrical energy management, demand side management, power quality, transmission pricing, embedded generation as well as computer aided power system analysis and design. From 2005 to 2015 he was the Vice President of Consulting and Engineering at Power Analytics Corporation, USA in San Diego.
           Currently he is a Consultant Professor of Power Systems at Technical University of Cluj Napoca, Romania and University of Cape Town and since 2016 is a member of the C&M Collaborative Technologies Advisory Board and EE Managing Director.
           Dr. Darie has authored or co-authored hundreds of technical books, student manuals, technical papers and research projects. His research area covers the modeling of power system components, power system harmonics, computer aided power system design and analysis, power system distribution optimization, power system protection, industrial installation, project investigation and electro technologies.
           Dr. Darie led over 210 electrical power projects; he constructed 18 prototypes designed for mass production, holds three patents and is experienced in most leading professional software programs for electrical engineering. He has provided services to clients worldwide.

             

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