Papers Russ has authored or co-authored.
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Paper (click for paper) |
Paper Subject |
Where Presented |
| Negative-Sequence Current Injection of Transmission Solar Farms | Describes the negative-sequence current injection from transmission-connected solar farms. Reveals the negative-sequence current injection behaviors of solar farms by analyzing how inverters respond to faults. Shows how the negative-sequence current can impact the negative-sequence directional element of protective relays. | G. Kou, J. Jordan, B. Cockerham, R. W. Patterson and P. VanSant, "Negative-Sequence Current Injection of Transmission Solar Farms," in IEEE Transactions on Power Delivery, 2020. |
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Arc Resistance Coverage and Mho Expansion The Devil is in the Details |
Describes how polarizing affects mho expansion and resistive coverage and pitfalls to positive sequence polarizing practices in modern digital relays | Presented at Western Protective Relay Conference, October 15-18, 2018. Spokane, WA. |
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Transformer Overcurrent Protection Coordination |
This paper presents a tutorial with information drawn from C57.109 and C37.91 highlighting the damage curve development and its use for different transformer MVA capacities. Also discussed are the effect of different winding configurations on coordination | 69th Georgia Tech Protective Relay Conference, April 29 - May 1, 2015. Atlanta, GA |
| A Practical Improvement to Stator Ground Fault Protection Using Negative Sequence Current | This paper discusses the phenomenon of zero sequence voltage coupling from the high-voltage system to the high-impedance grounded low-voltage bus for a synchronous generator and a simple improvement to accelerate stator ground fault protection (59G) using negative sequence current. |
Presented at the 2013
IEEE PES
General Meeting, July 21-25, 2013. Vancouver, BC Canada |
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Directional Comparison Blocking System Fundamentals |
The paper addresses the operational concept of the DCB scheme using “on/off” power line carrier, and issues pertaining to reliability and performance. This includes the pros and cons of using “non-directional” or “directional” start of the blocking signal, the blocking coordination timer, carrier hole issues and mitigation, and relevant logic | 39th Annual Western Protective Relaying Conference October 16-18, 2012. Spokane, WA. |
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Analysis of 138kV Tree Fault
in |
Event analysis of a resistive tree fault that resulted in underfrequency load shedding due to inadequate resistive coverage in the protection system. |
12 th Annual Fault and Disturbance Analysis Conference April 20-21, 2009. Atlanta, GA. |
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Reclosing and Tapped Motor Load Won the "Walt Elmore Best Paper" award for 2007 |
High-speed reclosing on tapped motor load. Topic is applicable to transmission line reclosing as well as distribution reclosing or plant auxiliary board transfers. With induction or synchronous machines (including distributed generation). |
61st
Georgia Tech Protective Relay Conference, May 2-4, 2007. Atlanta,
GA.
also presented at the Electric Cities of Alabama 2007 Engineering & Operations Conference, September 21, 2007. Birmingham, AL. portions of this paper presented in Protection, Automation & Control World, Summer 2007 Issue as "Large Moter Impact" |
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Near Real-Time Analysis of Operating Conditions Affecting Protective Equipment Reliability (primary author Ashok Gopalakrishnan)
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This paper discusses the integration of power system protection software (CAPE) with SCADA snapshots and State Estimator output to determine protection system overloads or impending distance relay misoperations. | 61st Georgia Tech Protective Relay Conference, May 2-4, 2007. Atlanta, GA. |
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An Off-line Analysis of System Operating Conditions Affecting Relay Reliability (Primary author Ashok Gopalakrishnan) |
This paper discusses the integration of power system protection software (CAPE) with SCADA snapshots to determine protection system overloads or impending distance relay misoperations. |
15th International Conference on
Power System Protection) Bled, Slovenia September 6-8, 2006 also presented at the European CAPE Users' Group Meeting Vienna Austria, September 4-5, 2006
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9th Annual Fault and Disturbance Analysis Conference May 1-2, 2006. Atlanta, GA |
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Automatic Calculation of Relay Settings for a Blocking Pilot Scheme (Primary author Dr. Donald M. MacGregor) |
18th International Conference on Electricity Distribution 2005 (CIRED), June 6-9, 2005. Turin, Italy 59th Georgia Tech Protective Relay Conference, April 27-29, 2005. Atlanta, GA.
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8th Annual Fault and Disturbance Analysis Conference April 25-26, 2005. Atlanta, GA. |
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57th Georgia Tech Protective Relay Conference, May 7-9, 2003. Atlanta, GA. |
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29th Annual Western Protective Relaying Conference October 22-24, 2002. Spokane, WA. 56th Georgia Tech Protective Relay Conference, May 1-3, 2002. Atlanta, GA. |
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4th Annual Fault and Disturbance Analysis Conference May 1-2, 2001. Atlanta, GA. |
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Matlab Analysis of Braytown Transformer Differential Inrush Misoperation |
Analysis of a transformer differential relay misoperation on inrush. |
3rd Annual Fault and Disturbance Analysis Conference May 1-2, 2000. Atlanta, GA. |
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A Consideration of Inrush Restraint Methods in Transformer Differential Relays |
Review of transformer inrush restraint methods including shortcomings in existing approaches. |
54th Annual Georgia Tech Protective Relaying Conference May 3-5, 2000. Atlanta, GA. |
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CAPE Creation of Doble State-Simulation Data Files for End-to-End Relay Testing |
Development of code in CAPE to create Doble state-simulation files. |
52nd Annual Georgia Tech Protective Relaying Conference May 6-8, 1998. Atlanta, GA. |
Updated 7/21/2020