Rabu, 12 Desember 2012

MONITORING SYSTEM CATHODIC PROTECTION PIPELINES



PROTECTED PIPELINES

East - West Pipeline Runs From East To West Across Country To Transport Oil And Gas From East Part (A) To West Part (B) In Order To Supply Energy For The Many Industrial Projects and The Pipeline From North Part (C) To The South Part (D) Of The Country.

CATHODIC PROTECTION

Cathodic Protection (CP) system protects metal pipelines against corrosion.
Impressed CP system relies that Transformer Rectifiers (TR) are supplying  consistent DC current to underground anode beds. Too low TR current leads to corrosion but too high current can lead to disbonding of the pipe coating and hydrogen embrittlement. 


CP MONITORING SYSTEM

AutoLog Cathodic Protection (CP) monitoring system monitors CP Transformer Rectifier’s impressed current,  voltage and optionally pipe-to-soil  potential measurements.


CP COMMUNICATION

Cathodic Protection (CP) system sends measurement data wirelessly to nearest base station.
AutoLog Cathodic Protection system can send measurement data using the following networks:

• Conventional Radio Network
• TETRA Network
• GSM Network
• RS-485 Network
• TCP/IP Network

Base stations are connected together to form one huge communication network which covers the whole East West- and South to North pipeline areas.

CP SCADA SYSTEM

From SCADA application users can see rectifier locations on map, alarms from abnormal situations and all measurements in trend lines. Measurements and alarms  are stored in SCADA server's SQL  database. Authorized users can see SCADA application views using normal web browser anywhere within the company's  LAN network. 

Corrosion Design Engineering