EE076: Load Flow Analysis, Short Circuit Calculations & Protection Coordination

Transcription

1 EE076: Load Flow Analysis, Short Circuit Calculations & Protection Coordination EE076 Rev.001 CMCT COURSE OUTLINE Page 1 of 6

2 Training Description: This course provides a comprehensive review of the fundamental principles relating to Electrical Load Flow analysis for those involved in a modern Electric Power System industry. It is directed primarily toward the needs of engineers who have not been exposed to a recent treatment of power - system modelling and who wish to gain a detailed under- standing of optimum load flow analysis techniques. Emphasis will be placed upon intensive teaching of relevant theory, presentation of practical examples and problem solving using both hand calculations and software packages. Attendees should be familiar with basic Electrical Engineering concepts but an extensive knowledge of electrical power systems is not a prerequisite. Appropriate examples will be presented an example problems will be solved. Demonstrations of relevant analysis software will be illustrated and participants will gain a deep understanding of short circuit protection mechanisms. The principles of power flow, fault analysis and transient stability of an electrical power network will be presented in a concise and practical manner. The possible damaging effect of these short circuit currents can result in the associated electrical network being out of operation for an extended period of time with the consequent disruption to electricity supply to customers. Training Objective: By the end of the training, participants will be able to: Broaden their understanding of electrical load flow analysis techniques Master the essential aspects and fundamentals of electrical short circuit protection Understand the practical consideration of Protection Devices and Coordination Build an extensive practical knowledge of circuit breaker curves so as to ensure protection coordination Develop a toolkit of skills in the area of electrical network failure modes and failure analysis Have an awareness of how to setup relay Coordination for main and back-up protection relays on electrical network Gain a renewed awareness of electrical safety concerns for electrical network operations Training Designed for: The course is intended for Electrical Power Engineers, Maintenance Supervisors and Operators who are responsible for power system load flow control in Generation, Transmission, Distribution and industrial facilities and those who require refreshing their knowledge and enhancing their skills in relation to short circuit protection techniques and power system coordination. EE076 Rev.001 CMCT COURSE OUTLINE Page 2 of 6

3 Training Program: DAY ONE: PRE-TEST Introduction to Short Circuit Analysis PRE-TEST What causes s short circuit? Which are common types of short circuits? Why is a short circuit dangerous? Why do you need short circuit study? What is coordination of protective devices? How do you select and install Protection Devices? Which areas of power distribution system are critical for short circuit calculations? How do you calculate short circuit current? Important Electrical Terminology Direct Current Alternating Current RMS or Effective Current Symmetrical Current Asymmetrical Current Over Current Closing Angle Random Closing Impedance Power Factor X/R Ratio Withstand Ratio Interrupting Rating DAY TWO: Over Current Protective Devices Introduction Making Capacity and Breaking Capacity Current Limitation Let-thru Current Do the protection devices prevent short circuits Short Circuit Calculations General Three phase short circuit Phase-to-phase short circuit clear of earth Phase-to-neutral short circuit clear of earth EE076 Rev.001 CMCT COURSE OUTLINE Page 3 of 6

4 Phase-to-earth fault (one or two phases) Summary DAY THREE: SC Calculations (Impedance Method) Distribution network impedances Transformers Motors Generators Capacitors What about special cases? Maximum available current Examples Regulations EC & ANSI/IEEE C 37 & UL 489 Short Circuit Calculation Methods Non decaying Short Circuit Calculation Fixed Impedance Short Circuit Calculation Current based Method for Short Circuit Calculations Short Circuit Calculation Standard/guidelines ANSI/IEEE Short Circuit Calculation Standard/guidelines IEC Comparison DAY FOUR: Formulation of the Load Flow problem Newton Raphson method General approach Application of Newton-Raphson method to a specific problem Sample results Gauss-Seidel method General approach Application of Gauss-Seidel method to a specific problem Sample results Stochastic Search Techniques General principles Genetic Algorithms Simulated Annealed Analysis for Integrated AC/DC Network Summary of Results and System Calculations Experimental Procedure EE076 Rev.001 CMCT COURSE OUTLINE Page 4 of 6

5 DAY FIVE: ETAP Power System Enterprise Solution ETAP System and ANSI/IEC standards ETAP System s Arc Flash Analysis ETAP System s Load Flow Analysis ETAP System s Simultaneous Analysis of Different Scenarios ETAP System s Motor Acceleration Module (10) SCADA System for Load Flow Monitoring The Power System Simulator SCADA Function of SCADA Systems SCADA components The Simulator Control Panel RF Realflex Secure SCADA System Course Conclusion POST-TEST and EVALUATION Training Requirement: Hand s on practical sessions, equipment and software will be applied during the course if required and as per the client s request. Training Methodology: This interactive training course includes the following training methodologies as a percentage of the total tuition hours:- 30% Lectures, Concepts, Role Play 30% Workshops & Work Presentations, Techniques 20% Based on Case Studies & Practical Exercises 20% Videos, Software & General Discussions Pre and Post Test Training Certificate(s): Internationally recognized certificate(s) will be issued to each participant who completed the course. Training Fees: As per the course location - This rate includes participant s manual, hand-outs, buffet lunch, coffee/tea on arrival, morning & afternoon of each day. EE076 Rev.001 CMCT COURSE OUTLINE Page 5 of 6

6 Training Timings: Daily Timings: 07:45-08:00 Morning Coffee / Tea 08:00-10:00 First Session 10:00-10:20 Recess (Coffee/Tea/Snacks) 10:20-12:20 Second Session 12:20-13:30 Recess (Prayer Break & Lunch) 13:30-15:00 Last Session For training registrations or in-house enquiries, please contact: Aisha Relativo: aisha@cmc-me.com Tel.: or Mob.: Training & Career Development Department EE076 Rev.001 CMCT COURSE OUTLINE Page 6 of 6