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Keywords: Decoupler
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Proceedings Papers

Evaluating, Quantifying, and Reducing the Capacitive Effect of an Existing AC Mitigation System Utilizing Advanced Modeling Techniques

Bradley O’Hagan, Steven Wenzel
...Abstract An evaluation of the capacitive effect of solid-state decouplers (SSDs) was completed on a transmission pipeline in the Midwest region of the United States. The existing alternating current (AC) mitigation system was comprised of 95 SSDs and approximately 33,000 ft (10058.4 m...
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Proceedings Papers

Considerations for Efficient, Accurate, and Safe Interrupted Surveys

Jay Warner, Randy Hilgart
...The Decoupler Dilemma DC decouplers play a critical role in most CP systems by providing effective DC isolation of cathodically protected structures from other objects and earthing systems, while simultaneously bonding the structure to earth for AC (induced steady state and faults) and lightning...
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Proceedings Papers

DC Decoupler Modelling to Predict the Effects of Capacitance on CP Potential Surveys

Alex Ristow, Mike Tachick
...There are ways that capacitance can be predicted prior to decoupler procurement. In general, capacitance can be expected if: Coating quality is excellent (high resistance) Asset diameter is small Multiple decouplers are specified/required Soil conditions are dry regularly/high soil...
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