SUPPLY – INSTALLATION AND START UP OF MONITORING SYSTEM – TELECONTROL – REMOTE CONTROL OF THE EXISTING EXTERNAL AND INTERNAL WATER SUPPLY NETWORK OF THE MUNICIPAL ENTERPRISE IN MUNICIPALITY OF MALEVIZI

This system achieves monitoring, remote control, remote control and leak detection of the existing external and internal water supply network of Gazi in Malevizi Municipality.

It includes:

• A Central Control Station (CCS) through which the operators command – monitor and process the data collected by the local control stations abroad and the internal aqueduct of of Gazi in Malevizi Municipality
• Fortysix (46) Regional Control Stations (RCS) of the external water supply network that control and command all the elements of each external network station (pumps, drillings, instrument tanks, etc.). The control stations communicate with the central station (CCS) and also between them, using the GPRS-GSM wireless communication network, exchanging data, and commands
• Ten (10) Domestic Network Control Stations (DNCS) that were deployed at key points of the internal network. They collect information from the data that is attached to them (pressures, supplies, etc.) and transfer them via GSM wireless network to the Central Control Station (CCS) for further processing. At the same time, they will change the pressure of the network bands they are going to monitor, within predefined limits, depending on supply demand, thereby reducing the network’s spurious leakage as well as the high-pressure fault (cable breaks, etc.), thus increasing the life of the network and saving water for the DEYA of Malevizi.

The operation of this system achieves the following objectives:

• Reducing annual potable water losses and total consumption in Municipal Districts by effectively combating leakage and avoiding overflows
• Limiting the burden on the water reserves and water abstractions in the area
• The contribution through mild water abstraction, the improvement of the quality of the stocks and the rational management of the water resources of the area
• Timely detection of the origin of drinking water losses and support for operators in the process of isolating the parts of the water network and thus reducing water loss
• Supporting technical services to accurately identify and respond quickly to leaks and overflows, with little disruption to the normal service of water supply and distribution.
• Upgrading customer service by limiting leakage or other failures (e.g. tank overflow, pump failure, chlorinators failure, etc.)
• Reducing the energy consumption of pumping stations and drilling
• Reducing employment in low priority jobs
• Supervision or handling of parts and appliances of the water supply network
• Stacking of statistics for medium and long-term planning and programming of network operation
• The gradual reduction of network leaks by collecting and monitoring data from its operation at night                      
• Enhanced security in the operation of network installations
• Detecting and tackling malicious actions (illegal assets)
• The ability to automatically adjust the pressure and consequently to significantly and effectively reduce the hidden leakage at times when there is no demand from consumers.
• Energy savings from controlled pump operation
• Protect pumps from voltage errors, water shortages, etc.
• Increasing the life of pumps by the “smart” function of the pumps, as well as continuous monitoring of parameters such as supplying hours of running current, monitoring the power on the motor shaft, etc.
• Continuous recording of consumption (tanks and inlet entries of the internal network networks) which provides useful information on serious leaks.
• The minimization of pump interruptions due to problems and consequently the maximization of the continuous coverage of vendors in water supply needs.
• Reduction of reaction time to deal with any damage such as: pump failure (lack of water from the network), sudden drop in pressure (leakage), sudden increase of inlets (pipe breakage), due to immediate notification of competent technicians, if necessary, via sending SMS at the time each problem is generated (24-hour monitoring and alert)