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水处理
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        成功案例: 水处理

        Anonymous (France)

        成功案例: 水处理 Cost effective and size optimized solution 30% saved on wiring costs

         

        I. CUSTOMER ENVIRONMENT / PROJECT CONTEXT

         

        Customer profile:

        • Town of Grasse has entrusted to Degrémont the construction of a waste water treatment facility (capacity of     25 000 Equivalent Inhabitants), using a new ultra-filtration membrane technology, called Ultrabox®.
        • This very compact technology is offering a higher treatment capacity for a given plant size.
        • Schneider Electric automation solution has been selected for the control system.
        • This plant is operated by Suez.
        • Graniou was the system integrator in charge of the automation project execution.
         

        Customer objective and constraints:

        • Constraints about discharge level in the Roumiguières valley. Searching for an adapted process, in a protected area, with space limitation.
        • Installation has to face with following constraints :
          - High availability
          - Flexible extension
          - Compact size
         

        II. SOLUTION IMPLEMENTATION

         

        Implementation methodology (main phases):

        1. Answer stringent specification from customer
        2. Implementation taking into account flexibility for future evolutions
        3. After sales service
         

        Solution overview (services, products, systems, architectures...) :

        Solution overview (services, products, systems, architectures...) :
         
        Automation structure is mainly based on:

        • Redundant warm standby programmable controllers, bringing high system availability
        • STB distributed I/Os islands (for the different process functional units), providing complete integration of motor starters (simplified wiring to STB thanks to pre-made cabling) and variable speed drives (via STB canopen extension) on the FIP network. This solution is compact and easy to expand.
         

        III. RESULTS / ACHIEVEMENT

         

        Customer benefits:

        • High availability of installation
        • Flexible extension capabilities
        • Compact size
         

        Customer testimonies (Verbatim):

        • Stéphane Abram, Graniou system integrator project manager: "Thanks to STB islands, we saved on space, with a reduction of 3 or 4 meters of linear enclosure space. But we saved also on wiring: we have an estimating saving time in wiring of approximately 30% ...  We selected Tesys U motor starters for easy connection, compact size, and flexibility for the user: only 3 references are covering 80% of the requirements of motor starters on the site".
         

        Schneider Electric differentiating values VS competitors:

        • Cost effective solution brought by compactness of equipment and wiring cost reduction, thanks to the associated use of STB distributed I/Os, TesysU motor starters and ATV drives.
         
         
         
         
         

        解决方案简述

        主要产品和系统:
        Main services:
        • After sales service