... waveform analysis data visualization multiple interruption cycle interruption verification wave print waveform anodic spiking voltage spiking telluric influence coupons asynchronous interruption interruption capacitance INTRODUCTION Cathodic Protection is a well-documented mitigation technique...

...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...

.... However, this capacitance can have a detrimental effect on the instant-off response of interrupted surveys. This effect can be observed by comparing the waveforms shown in Figure 2 . In the example shown in Figure 2 , the pipeline segment is 33 miles long with eight (8) decouplers installed for AC...

...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...