Electronic & Electrical
Rectifier For Cathodic Protection Used In Pipelines Ships IP54 In Desert And Harsh Environments
No.1-1
Description
Switch mode rectifiers for cathodic protectionCathodic protection (CP) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded & quot;sacrificial metal& quot; to act as the anode. The sacrificial metal then corrodes instead of the protected metal. For structures such as long pipelines, where passive galvanic cathodic protection is not adequate, an external DC electrical power source is used to provide sufficient current.Cathodic protection systems protect a wide range of metallic structures in various environments. Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures. Another common application is in galvanized steel, in which a sacrificial coating of zinc on steel parts protects them from rust.Why Green Power& acute;s switch mode power supplies replace SCR rectifier?
Green Power& acute;s Switch mode power supplies have many advantages over SCR rectifier, therefore, they are now more and more used for electroplating process to replace SCR rectifier.
The main advantages of Green Power pulse plating rectifiers over thyristor rectifiers include but not limited to:Low maintenanceLight weight, small size, in far areas, don& acute;t need crane truck, like heavy oil-cooled SCR rectifier which is difficult and expensive.Same high reliability as SCR rectifier, long time 7 days 24 hours continuous runningHigh conversion efficiency, power saving at least 15% than SCR rectifier.Not affected by power fluctuation, 100% output, don& acute;t need extra capacityIGBT rectifier adopts AC-DC-AC-DC topology, 3 phase AC is firstly converted to DC, which has capacitors for energy charging and discharging, it will suppress power fluctuat
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Beijing Green Power Technology Co., Ltd
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Address: Building 19,Yuquan Huigu, Qinghua Sci-Tech. Park, No. 3 Minzhuang Road, Haidian District, Beijing.,
Beijing, Beijing
China, 100195
Tel: 86-010-57232886
Fax: 86-010-88990806
