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The maintenance discussed will cover everything from rectifier cleaning to swapping out a stack.A well maintained rectifier provides uninterrupted cathodic protection reduces repair costs and labor/technician time.
Sustainability seems to be the latest catch phrase and with that comes cathodic protection. What better way to preserve and maintain our infrastructure than to mitigate corrosion. Some cathodic protection systems are comprised of sacrificial anodes that naturally corrode in order to provide protective currents but others require a power source in order to make the anodes corrode. These systems use rectifiers and rectifiers can breakdown.This presentation discusses the fundamentals of rectifier operation along with maintenance recommendations. Sometimes simple routine maintenance can keep a rectifier in operation for years without a single repair. Sometimes a nearby lightning strike can short a diode or trip a breaker. The maintenance discussed will cover everything from rectifier cleaning to swapping out a stack.A well maintained rectifier provides uninterrupted cathodic protection reduces repair costs and labor/technician time.
Keywords: conference papers, conference papers 2015, transformer, rectifier, stack, diode
Based on some articles that have been published in Materials Performance (MP) and the NACE Courses 9 and Standards for Cathodic Protection (CP) practitioners, this author has concluded that present day CP practitioners, do not have an adequate understanding of some basic scientific principles.
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This paper contains a review of commonly used practices and presents a generalized technique for the calculation of earth potentials for the determination of remoteness of impressed current anode ground beds. The intent is to facilitate proper design and evaluation of anode ground beds of impressed current cathodic protection system for cross-country pipelines.
The State of the Art in the technical/scientific knowledge of the subject of AC corrosion on cathodically protected pipelines. Its mitigation, the studies and the issue of relevant Standards & Recommendations will also be dealt with.