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Why Choose this Training Course?
This Electrical Faults training course teaches practical electrical troubleshooting and is concerned with the calculation of fault currents in electrical power systems. Short-circuit currents are associated with large amounts of very destructive energy and therefore calculations must be made to ensure that the short-circuit ratings of equipment are adequate to cater for these high currents. Accurate assessment of these currents is also essential for determining the settings of the system protection devices.
This training course includes the preparation of the system for analysis, by manual calculation and by the use of computer analysis. Participants will be introduced to the various fault analysis software programs. Also, all protection device and how to configure the multifunction relay by using relay simulation program will be included.
This PetroKnowledge training course will feature:
Identification of causes of electrical faults
Understanding three phase short circuit currents
Recognition of unsymmetrical faults in transformers
Partial discharge phenomena and how to apply the required analysis
Representation of unsymmetrical faults in a power system
Manual and software assisted of fault currents
Simulation for protection relays configuration
What are the Goals?
By the end of this PetroKnowledge training course, participants will be able to:
Understand the various types of fault currents
Determine the causes of overcurrent and short circuit current
Explain differences between power system faults
Analyse the common faults in a power system
Configure multifunction relays to protect the power system
Know protection simulation
Know the partial discharge analysis and detection as case study
Who is this Training Course for?
This Electrical Faults training course will benefit all levels of personnel in an electrical installation. It will enable them to identify the causes and apply analysis of electrical faults in a power system.
This training course is suitable to a wide range of technical professionals but will greatly benefit:
This Electrical Faults training course will utilise a variety of proven adult training techniques to ensure maximum understanding, comprehension and retention of the information presented. This includes presentation and discussion of case studies (with appropriate solutions), latest videos, technologies, and various commercial fault current analysis software.
Questions are encouraged throughout, particularly at the daily wrap up sessions. This provides opportunities for participants to discuss with the Presenter specific issues and, if possible, find appropriate solutions. Specific goals of each participant will be discussed to ensure that their needs are fulfilled whenever practicable.
Day One: Introduction to Fault Analysis
Source of fault current in an electrical installation
Common fault statistics of electrical equipment
Short-circuit rating of equipment
Selecting the correct switchgear rating for fault duties
Overview of per-unit system and one-line diagrams
Sources of impedance data for all items of plant
Day Two: Power System Faults
Power system faults
Faults calculation and using software for verification
Partial discharge analysis
Cables subjected to short-circuit currents
Surge and lighting faults
Grounding system to increase power system reliabilities
Day Three: Power System Faults Interpretation of Sinusoidal Wave Forms
Interpretation of electrical faults in relation with the sinewave.
Network sequence and consequences
Linear loads and nonlinear loads
K factor in transformers
Power factor correction
Day Four: Time Current Curves, LSIG and Trip Units for Electrical Faults
High set, low set, and inverse -timed elements
Concepts of long time, short time and instantaneous operations
Electronic trip units associated to electrical faults
Co-ordination with other devices and fuses
Auto-reclosing of feeder circuit breakers
Day Five: Electrical Faults Indicated by Numerical Relays
Introduction to numerical relays
ANSI code for numerical relays
Motors faults represented by numerical relays
Generator faults represented by numerical relays
Fault current limiter
Wrap up session with Q & A
On successful completion of this training course, a PetroKnowledge Certificate will be
awarded to the delegates