Title :
Induced transients in substation cables: measurements and models
Author :
Thomas, D.E. ; Wiggins, C.M. ; Salas, T.M. ; Nickle, F.S. ; Wright, S.E.
Author_Institution :
BDM Int. Inc., Albuquerque, NM, USA
fDate :
10/1/1994 12:00:00 AM
Abstract :
An extensive set of switching transient EMI response measurements on several types of substation cables and internal cable wires is described in this paper. Measured and predicted cable/wire current and voltage transients at both air-insulated substations (AIS) and gas-insulated substations (GIS) are presented, for system voltages ranging from 115 kV to 500 kV. The maximum peak-to-peak amplitudes of measured wire transients are found to vary from around 1 A to almost 20 A (current in amperes), and from 0.3 kV to almost 7 kV (voltage in kilovolts). Predictive models for field-driven coupling, as well as for direct-driven coupling via current transformers or capacitively-coupled voltage transformers (CTs/CCVTs), are presented. Model predictions are compared to and validated against measured wire transients
Keywords :
air insulation; current transformers; electric current measurement; gas insulated substations; gaseous insulation; potential transformers; power cables; power system measurement; power system transients; substations; switching; transient analysis; voltage measurement; 115 to 500 kV; air-insulated substations; capacitively-coupled voltage transformers; current transformers; current transients; direct-driven coupling; field-driven coupling; gas-insulated substations; induced transients measurement; measured wire transients; predictive models; substation cables; switching transient EMI response measurements; voltage transients; Communication cables; Current measurement; Electromagnetic interference; Electromagnetic measurements; Electromagnetic transients; Predictive models; Substations; Switches; Voltage; Wires;
Journal_Title :
Power Delivery, IEEE Transactions on
