45 minutes presentation includes 10 minutes of Q&A.
9:00am - 9:45am
GRID2020
Reality 2.0 - Maximizing the Grid
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- Transitioning from "Keeping the Lights on", to Maximizing Grid Value
- Proactively Addressing EV Charging Station & DER Concerns
- Avoiding Transformer Shortage Impacts
- Using the Grid to Elevate Wildfire Mitigation to a New Level
- Reducing Greenhouse Gas Emissions
- Uncovering the Next Important, Justifiable CapEx Initiative
9:45am - 10:30am
Commonwealth Associates Inc.
A Deep Dive into BESS Arc Flash
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Arc flash is an industry concern for most everyone. But with the recent increase in BESS projects across the US, how do Battery Energy Storage Systems (BESS) owners deal with arc flash concerns? BESS using the current prevailing Li-Ion technology, can result in extremely high short-circuit currents on the DC side of the inverter. This is particularly true when using large DC battery density to achieve long maximum output discharge scenarios. Commonwealth will detail real situations, and dive into engineering analysis on how to better address arc flash concerns to help protect site workers.
10:30am - 11:15am
IRISS Group
Improving Your Maintenance Program Through Operator-Driven Reliability
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11:15am – 12:00pm
Zensol Automation, Inc.
Vibro-Acoustic as a Fast Diagnostic Tool for On Load Tap Changers
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The functioning of an On-Load Tap Changer (OLTC) is complex, since a lot of mechanisms are operating at the same time. Classic testing techniques give very little information on mechanical problems occurring inside an OLTC while in service.
This presentation shows how the vibroacoustic method is used as a fast diagnosis tool to easily detect mechanical problems in Tap Changers ON-LINE or OFF-LINE, before they create an outage.
We will show also how simultaneous correlation of signals recorded by Vibroacoustic, Motor Current and Dynamic Resistance Measurement (DRM) allows a fast understanding of the internal movements of an OLTC. Each of these tests provides a piece of information that creates a complete picture of the OLTC's condition.
Finally, we will present a real case showing how the electric utility New Brunswick Power uses this tool to properly adjust an OLTC.