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2011•RWTH Publications (RWTH Aachen)Open access

Online Ampacity Determination Of A 220-kv Cable Using An Optical Fibre Based Monitoring System

Michael Schmale, Ralf Puffer, Henrik Hoff, Ulrich Glombitza

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Abstract

A dynamic rating system to increase the ampacity of a 220-kV power cable is described.The advantage of the used system is the ability to online calculate the ampacity and therewith to use short term ampacity increases in the operation of the grid.Measurement results are analysed and interpreted.Compared to the formerly installed static rating of the cable the use of the new monitoring system delivers additional ampacity depending on the current load and the soil temperature.Additionally the condition of the cable concerning cable temperature hot spots is monitored continuously.

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A dynamic rating system to increase the ampacity of a 220-kV power cable is described.The advantage of the used system is the ability to online calculate the ampacity and therewith to use short term ampacity increases in the operation of the grid.Measurement results are analysed and interpreted.Compared to the formerly installed static rating of the cable the use of the new monitoring system delivers additional ampacity depending on the current load and the soil temperature.Additionally the condition of the cable concerning cable temperature hot spots is monitored continuously.

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Available abstract

A dynamic rating system to increase the ampacity of a 220-kV power cable is described.The advantage of the used system is the ability to online calculate the ampacity and therewith to use short term ampacity increases in the operation of the grid.Measurement results are analysed and interpreted.Compared to the formerly installed static rating of the cable the use of the new monitoring system delivers additional ampacity depending on the current load and the soil temperature.Additionally the condition of the cable concerning cable temperature hot spots is monitored continuously.

Key concepts: Ampacity, Power cable, Power (physics), Electrical engineering, Engineering, Electrical conductor, Materials science, Physics

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