Transient electromagnetic interference in substations

Author

Wiggins, C.M. ; Thomas, D.E. ; Nickel, F.S. ; Salas, T.M. ; Wright, S.E.

Author_Institution

BDM Int. Inc., Albuquerque, NM, USA

Volume

9

Issue

4

fYear

1994

fDate

10/1/1994 12:00:00 AM

Firstpage

1869

Lastpage

1884

Abstract

Electromagnetic interference levels on sensitive electronic equipment are quantified experimentally and theoretically in air and gas insulated substations of different voltages. Measurement techniques for recording interference voltages and currents and electric and magnetic fields are reviewed and actual interference data are summarized. Conducted and radiated interference coupling mechanisms and levels in substation control wiring are described using both measurement results and electromagnetic models validated against measurements. The nominal maximum field and control wire interference levels expected in the switchyard and inside the control house from switching operations, faults, and an average lightning strike are estimated using high frequency transient coupling models. Comparisons with standards are made and recommendations given concerning equipment shielding and surge protection

Keywords

air insulation; electric current measurement; electric field measurement; electrical faults; electromagnetic interference; gas insulated substations; gaseous insulation; lightning protection; magnetic field measurement; magnetic shielding; power system measurement; power system transients; surge protection; voltage measurement; air insulated substations; conducted interference coupling mechanisms; control house; electric fields measurement; electromagnetic models; equipment shielding; faults; gas insulated substations; high frequency transient coupling models; interference currents measurement; interference voltages measurement; lightning strike; magnetic fields measurement; radiated interference coupling mechanisms; sensitive electronic equipment; substation control wiring; substations; surge protection; switching operations; switchyard; transient electromagnetic interference; Electromagnetic interference; Electromagnetic measurements; Electromagnetic radiative interference; Electromagnetic transients; Electronic equipment; Frequency estimation; Lighting control; Magnetic field measurement; Substations; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.329520

Filename

329520