ETAP TUTORIALS: COMPOSITE NETWORKS

Sunday, May 22, 2011

This ETAP Tutorial presents the Composite Networks feature, which is one of ETAP’s most useful modelling tools. When building a one-line diagram of very large and complicated systems, the model becomes prone to criss-crossing lines and may look disorganized and messy. However, using the composite networks, such problems will be reduced or eliminated. The importance of this feature is due to the fact that it enhances the one-line diagram, which is the backbone of power system simulations including power quality studies.

A composite network is a combination of all components in a subsystem, because it can also contain buses, sources, loads, branches and even other composite networks or composite motors. The number of levels where you can nest composite networks inside of other composite networks is unlimited. This allows the engineer to create systems and nest elements by their physical layout, geometrical requirements of elements, voltage levels, study requirements, etc. Subsequently, composite networks offer the capability to build complicated electrical networks while still maintaining a clean and organized one-line diagram. As a result, the user can display the system that he wants to emphasize, while the next level of system detail is within easy reach.

Furthermore, these nested composite networks are still part of the over-all system model. All studies that are run take in all the elements and connections nested within all composite networks and composite motors.

At the end of this tutorial, one should be able to create large and complex systems in an orderly manner by using ETAP’s composite networks feature.

Composite Networks 

Link 1: PDF Tutorial

ETAP Tutorial Outline: 
·      Background
·      Working with the Composite Networks
·      Illustration

Link 2: Play Video Tutorial



Reference:
ETAP Help File

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I am an Electrical Engineer with a Masters Degree in Business Administration. My interest is in Power Quality, Diagnostic Testing and Protective Relaying. I have been working in an electric distribution utility for more than a decade. I handle PQ studies, power system analysis, diagnostic testing, protective relaying and capital budgeting for company projects.