Refrigerating System for Long Distance Power Cables

Transmission of electrical power through subsea-cables over long distances

Crude oil is the basis for almost all products of our modern life. However, the sources where crude oil can be exploited easily are limited. Therefore, in addition to existing oilfields, sources which require more technical effort must be exploited in future. Many of such oilwells are subsea. Some of them are nearby the coast, but others are some 10 to 100 km away from the coast and in a depth ...

Condition Monitoring of Power Cables

A National Grid funded research project at Southampton has investigated possible methodologies for data acquisition, transmission and processing that will facilitate on-line continuous monitoring of partial discharges in high voltage polymeric cable systems. A method that only uses passive components at the measuring points has been developed and is outlined in this paper. More recent work, fun...

Analysis of the Effects of Temperature on the Electrical Parameters of Long Distance Cables

This study examines conductive noise in long distance cables in a subsea environment. The conductive noise was caused by impedance mismatch between cables and appeared in the form of transient voltages. In particular, it is important to analyze the characteristics of transient voltages for different subsea temperature changes. To analyze the transient voltages, the effects of L, R, and C for di...

Power Delivery in Systems with Lossy Cables

Photons refrigerating phonons