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Dr. Gary Johnson is a Senior Managing Engineer in Exponent's Electrical and Semiconductors practice. He specializes in issues pertaining to electrical engineering particularly as they relate to the electrical environment of power systems. Dr. Johnson has extensive experience with the electric and magnetic fields of transmission and distribution systems as well as the audible noise radio noise and ozone that may be produced by high voltage power systems. His work has involved the measurement modeling and mitigation of the electrical environment of transmission lines transformer vaults and underground cables. His experience also involves issues dealing with lightning electrical transients and ground currents.
Dr. Johnson has also performed engineering studies related to power system fields corona and ground currents for several clients. He helped develop digital magnetic field recorders (STAR WaveCam and Pulsar) and techniques for automatic magnetic field mapping. He was a principal investigator in the EPRI research on magnetic field sources and methods of shielding. His recent efforts have focused on power quality issues. He has investigated the production and magnitude of harmonics and transients on power systems. Prior to joining Exponent Dr. Johnson was the President of Power Research Engineering where he worked on engineering issues related to power lines specializing in the electrical environment and power quality. | 