Inspection and Evaluation of Solid State Decoupler in AC Interference Mitigation

AC interference mitigation of a crude oil pipeline was applied using DC decoupler within grounding system. Inspection results of on-site survey have been analyzed to evaluate the performance of AC mitigation system and decoupler. The parameters involved in the inspection include AC interference magnitude before and after mitigation, operation data of DC decoupler, etc. This study could be helpful for design and application of DC decoupler in AC mitigation.