On successful completion of this course, participants will be able to:

• Understand importance of power system modeling
• Understand the need for calculation the short circuit current.
• Consequences of sustained fault current & type if faults.
• Manual calculation of short circuit using simple methods like MVA method, P.U. system, etc…
• Balanced & unbalanced power flow analysis.
• Voltage drop
• Analyze the motor starting/acceleration.
• Switchgear rating (breaking & making capacities).
• Power problem problems & assessment.
• Importance of arc flashing and relay co-ordination studies from operation & safety point of view.
• Test cases simulation using computer software’s.

This course is intended for anyone who must perform calculations, provide settings or approve the work performed by others. The trainee should be a graduate engineer or have the equivalent practical work experience in electrical power systems. i.e.

• Consulting Engineers.
• Electrical Engineers.
• Project Engineers.
• Maintenance Engineers.
• Commissioning & testing Engineers.

Day 1

• Overview of ETAP Capabilities & Limitations.
• One-Line Diagram/One line View (OLV).
• Creating & Merging different revisions, presentations & configuration
• Scenario, Study & Project Wizards.
• Crystal Reports & Customizations.
• AC & DC Element Descriptions.

Day 2

• Load modeling.
• Add, updating and remove from ETAP library.
• Electrical systems modeling and fundamentals.
• Load flow (balanced & unbalanced) analysis.
• Load Flow & Cable sizing.
• Transformer sizing.
• Benefits of calculated short circuit currents.

Day 3

• Introduction to Fault current Calculations in brief.
• Breaking & making currents.
• Per unit systems.
• Different typical values of positive, negative & zero phase sequence impedances for unbalance faults.
• Manual Calculations of Isc by MVA Method.
• Calculation of Isc by Impedance method.

Day 4

• Calculation of Isc by symmetrical components.
• Calculations as defined & recommended by IEC/ANSI standards.
• Short Circuit Studies (Fault-Levels – Switchgear/Fuse Rating). Typical cases for switchgear sizing.
• Relay co-ordination & Arc Flashing studies.
• Coordination Fundamentals
• Procedures
• Data Collection
• Plotting Time/Current Curves
• Relay Coordination Intervals

Day 5

• Equipment’s damage curves for cables, transformers, etc...
• System Modeling for Device Coordination Study
• ETAP Star (Device Co-ordination/selectivity).
• System earthling (Solid, resistance & reactance or even ungrounded systems)
• Substation grounding grid design & Calculations.
• Motor Parameter Estimation.
• Motor Acceleration Analysis (Dynamic & Static).
• Different test simulation cases using ETAP power station version 7.00.

CDGA attendance certificate will be issued to all attendees completing a minimum of 80% of the total course duration.