{"id":37205,"date":"2024-06-10T11:41:39","date_gmt":"2024-06-10T11:41:39","guid":{"rendered":"https:\/\/constrat.gr\/?post_type=cpt_portfolio&p=37205"},"modified":"2025-04-11T13:29:55","modified_gmt":"2025-04-11T13:29:55","slug":"promitheia-sistimatos-scada-eel-polikastrou","status":"publish","type":"cpt_portfolio","link":"https:\/\/constrat.gr\/en\/portfolio\/promitheia-sistimatos-scada-eel-polikastrou\/","title":{"rendered":"SUPPLY OF SCADA SYSTEM FOR POLYKASTRO WWTP"},"content":{"rendered":"
\n

\"\"<\/a><\/h2>\n

PROJECT DESCRIPTION<\/h2>\n

Axis:\u00a0\"ENHANCEMENT OF ENVIRONMENTAL RESOURCES AND CULTURAL HERITAGE IN THE PROGRAM AREA\"<\/strong><\/p>\n

Measure:\u00a0\u00a0\"PROMOTION AND PROTECTION OF THE ENVIRONMENTAL RESOURCES OF THE AREA\"<\/strong><\/p>\n

The procurement was carried out to achieve the upgrade of the WWTP's operation through the new automation, communication, and measurement equipment, as well as the implementation of an integrated facility management system via a\u00a0SCADA system<\/strong>.<\/p>\n

To ensure better motor management, energy savings, and protection of the motors from wear and tear, variable speed drives (INVERTERS) were installed\u00a0on the motors of various units,<\/strong>\u00a0such as pumps, blowers, air compressors, etc.<\/p>\n

All individual units of the WWTP are monitored by the\u00a0Local Control Stations<\/strong>, which are installed at specific locations within the facility and consist of:<\/p>\n

    \n
  • Programmable Logic Controllers\u00a0PLCs<\/strong>\u00a0and their auxiliary equipment (additional analog and digital input\/output cards)<\/li>\n
  • the\u00a0DC-UPS<\/strong>\u00a0units with appropriate battery modules to ensure uninterrupted power supply to the equipment<\/li>\n
  • communication equipment with\u00a0wireless capabilities<\/strong>\u00a0operating at 2.4GHz or 5GHz frequencies<\/li>\n
  • the necessary equipment such as\u00a0relays<\/strong>,\u00a0fuses<\/strong>,\u00a0automatic circuit breakers,<\/strong>\u00a0etc.<\/li>\n<\/ul>\n

    Another important aspect of the WWTP upgrade process is the installation of new\u00a0instruments for the continuous measurement of<\/strong>\u00a0quality parameters, which are critical for the efficient and specification-compliant operation of the plant. More specifically, instruments were installed to enable the measurement of parameters such as:<\/p>\n

      \n
    • Dissolved Oxygen (DO) concentration and Mixed Liquor Suspended Solids (MLSS) in the Biological Treatment Tanks<\/li>\n
    • Suspended solids concentration at the Sludge Recirculation Pumping Station<\/li>\n
    • Sludge level in the sedimentation tanks<\/li>\n<\/ul>\n

      \"\"<\/p>\n

      Additionally, to enable continuous and accurate recording of water and wastewater flow at various points of the WWTP,\u00a0two portable<\/strong>\u00a0ultrasonic flow meters<\/strong>of the Clamp-On type were installed. These include an Electronic Transmitter \u2013 Controller,\u00a0measurement sensors<\/strong>\u00a0with their corresponding mounting and connection accessories, and a complete Testing Kit.<\/p>\n

      Were also installed,\u00a0level measurement instruments\u00a0<\/strong>or\u00a0flow measurement instruments<\/strong>, using technology\u00a0ultrasonic technology<\/strong>, for the continuous recording of the level or volume in manholes \/ water \/ wastewater tanks, which consist of a controller and a high-precision, high-reliability ultrasonic sensor.<\/p>\n

      The\u00a0Monitoring, Control, and Data Collection System (SCADA)<\/strong>\u00a0that was installed consists of state-of-the-art technologies regarding its structure and operation. Additionally, it is fully open and scalable for modifications and future requirements of the facility.<\/p>\n

      To ensure the functionality of the entire system, even under challenging conditions such as those of a WWTP,\u00a0a computer<\/strong>with appropriate industrial specifications was installed at the facility's Control Center.<\/p>\n

      This computer is equipped with the\u00a0SCADA WINCC software<\/strong>and features a 21\u2019\u2019 LCD TFT high-resolution screen suitable for extended operation. The specific computer is certified for use both in office and industrial environments, is suitable for installation in a 19\u2019\u2019 rack, and, among other features, includes monitoring and diagnostic functions for program execution, operating temperature, and fan speed.<\/p>\n

      Additionally, for the ability to intervene locally at the control stations of the WWTP units, beyond access via the control center,\u00a0a portable computer<\/strong>\u00a0with the latest technology specifications was procured.<\/p>\n

      The equipment that was procured is detailed below:<\/p>\n

        \n
      • Four (4) electrical automation panels for WWTP units (PLC-DCUPS)<\/li>\n
      • Five (5) wireless communication equipment units<\/li>\n
      • Two (2) portable flow measurement equipment units<\/li>\n
      • Three (3) level or flow measurement instruments<\/li>\n
      • One (1) quality measurement instrument<\/li>\n
      • Sixteen (16) speed control devices (INVERTER)<\/li>\n
      • One (1) SCADA software system<\/li>\n
      • One SCADA computer<\/li>\n
      • One portable computer<\/li>\n<\/ul>\n

         <\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

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