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51312-01212-Monitoring an Impressed Current Cathodic Protection System On Two Natural Draft Hyperbolic Cooling T

Picture for Monitoring an Impressed Current Cathodic Protection System On Two Natural Draft Hyperbolic Cooling T
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Product Number: 51312-01212-SG
ISBN: 01212 2012 CP
Author: Paul Noyce
Publication Date: 2012
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AbstractMonitoring of an Impressed Current Cathodic Protection with state of the art technology on two 436 feet high cooling towers with a surface area of 385000 square feet has been carried out over the past twelve months. The complex nature of monitoring eighty eight (88) control zones on each tower was only feasible by utilizing a combination of distributed DC power supplies all linked back to a main control unit by a two-tier multi discipline network topology. In addition to operating the power supplies a total of seven hundred and twenty (720) reference electrodes are being monitored with complete synchronization of current interruption to provide a true instantaneous off. The monitoring of the system included data logging of all the power supplies and embedded reference electrodes at a minimum of two readings per day. Depolarization tests were carried out automatically on a monthly basis and reports were produced on a quarterly basis for assessment of the system. This paper will look at the performance of the system during the first year of operation and the benefits of using state of the art equipment for this type of system in comparison to conventional transformer rectifiers. Key Words: impressed current cathodic protection reference electrode monitoring instantaneous off depolarization power supplies data logging direct current (DC) synchronization transformer rectifiers.
AbstractMonitoring of an Impressed Current Cathodic Protection with state of the art technology on two 436 feet high cooling towers with a surface area of 385000 square feet has been carried out over the past twelve months. The complex nature of monitoring eighty eight (88) control zones on each tower was only feasible by utilizing a combination of distributed DC power supplies all linked back to a main control unit by a two-tier multi discipline network topology. In addition to operating the power supplies a total of seven hundred and twenty (720) reference electrodes are being monitored with complete synchronization of current interruption to provide a true instantaneous off. The monitoring of the system included data logging of all the power supplies and embedded reference electrodes at a minimum of two readings per day. Depolarization tests were carried out automatically on a monthly basis and reports were produced on a quarterly basis for assessment of the system. This paper will look at the performance of the system during the first year of operation and the benefits of using state of the art equipment for this type of system in comparison to conventional transformer rectifiers. Key Words: impressed current cathodic protection reference electrode monitoring instantaneous off depolarization power supplies data logging direct current (DC) synchronization transformer rectifiers.
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