Direct electrical heating system

摘要

A direct electrical heating system for heating a section of a pipeline is provided. A power supply of the direct electrical heating system has a power input for receiving electric power and a power output for supplying AC electric power to the pipeline section. The power supply has a DC link at which DC electric power is provided and an inverter connected to the DC link for converting the DC electric power to a single phase AC electric power for direct electrical heating of the pipeline section. The direct electrical heating system further includes an electric connection from the power output of the power supply to the pipeline section.