Induced voltage on pipeline located close to high voltage lines due to electromagnetic induction

Utility pipelines are often laid in parallel with overhead high voltage power transmission lines (OHTL). Induced voltage on the pipeline due to proximity effects can reach dangerous levels, causing harm to utility personnel operating on it. This induced voltage can be reduced to acceptable levels using techniques such as lumped, gradient wire and cancellation wire methods. A typical case study of a three phase overhead line running in parallel to a pipeline is presented and analyzed by applying Current Distribution Electromagnetic interference Grounding and Soil structure analysis software (CDEGS). Modeling, simulation and analysis of this system are presented in this paper.