Safety Assessment of a Substation Ground Grid with a Software Package
This presentation covers the case study of a substation ground grid safety performance. The presenter brings a case where the soil, site environment, and power system properties present challenges that can be solved with the use of a software package. The program tool used in the example was SES Tech - CDEGS. The software package uses a finite element analysis that helps in determining soil model layers, grid spacing, electrode depth, surface rock, etc.
The presenter will walk the audience through soil modelling, fault current analysis for grounding, ground grid modelling, and calculation of grid resistance, ground potential rise, and touch & step voltages. Eduardo will explain how to interpret results and plots. He will also give recommendations for design and study methodology.
If time allows Eduardo has volunteered for a question and answer short session covering the following topics:
- Soil resistivity testing
- Seasonal modelling of soils
- Implementation of ground wells and other mitigation methods
- Split factor modelling
Presenter Profile: Eduardo Ramirez-Bettoni, P.E.
Eduardo works as a Principal Engineer at the Transmission & Substations Standards (TSS) department at Xcel Energy. He received a B.S. in Electrical Engineering from the University of Costa Rica (UCR). Eduardo is a licensed PE with 14 years of international experience in design, construction, and O&M of electrical substations up to 500 kV. Eduardo’s expertise is in substation protection & control, physical design, and grounding.
Date and Time
Location
Hosts
Registration
- Date: 26 Jan 2017
- Time: 05:30 PM UTC to 07:30 PM UTC
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- 1450 Energy Park Drive, Suite 300 East
- St. Paul, MN 55108, Minnesota
- United States 55108
- Building: NV5 Suite #300 East
- Room Number: Superior
- Click here for Map
- Starts 19 December 2016 06:00 AM UTC
- Ends 25 January 2017 10:00 PM UTC
- No Admission Charge
Speakers
Eduardo Ramirez-Bettoni, P.E.
Safety Assessment of a Substation Ground Grid with a Software Package
Biography:
Eduardo works as a Principal Engineer at the Transmission & Substations Standards (TSS) department at Xcel Energy. He received a B.S. in Electrical Engineering from the University of Costa Rica (UCR). Eduardo is a licensed PE with 14 years of international experience in design, construction, and O&M of electrical substations up to 500 kV. Eduardo’s expertise is in substation protection & control, physical design, and grounding.