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Optimizing the Locations of Cables for Current Rating Presented by Wael Moutassem Supervisors: Reza Iravani, George Anders.

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Presentation on theme: "Optimizing the Locations of Cables for Current Rating Presented by Wael Moutassem Supervisors: Reza Iravani, George Anders."— Presentation transcript:

1 Optimizing the Locations of Cables for Current Rating Presented by Wael Moutassem Supervisors: Reza Iravani, George Anders

2 Outline What is current rating of a cable? Cables in duct bank and casing Algorithm: Vector-Immune-System (VIS) Optimization results

3 Cable Current Rating Current rating: maximum current carried by cable without overheating, caused by Joule and dielectric losses. Losses in conductor, sheath and armour. Dissipation of heat outwards through layers to surroundings Neighbouring cables affect Joule losses and cause added heat. Electro-thermal model including all cables in an installation Equations for current ratings of cables based on their parameters and configuration

4 Cables in Duct Bank or Casing

5 Vector Immune System Algorithm Use VIS algorithm to determine configurations for largest and smallest current ratings.

6 VIS Operations Mutation: exchange Mutation: inversion

7 Optimization Results- Duct bank Largest Total 5,703 Amperes Smallest Total 3,438 Amperes Difference = 2,265 Amperes

8 Optimization Results- Casing Largest Total 2,850 Amperes Smallest Total 2,766 Amperes Difference = 84 Amperes

9 Conclusion Genetic algorithm used to determine best and worst case configurations. Duct bank study shows the large difference in possible total current rating Casing study shows effect on current rating of cables proximity to steel casing

10 Thank You Questions?


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