Pump control panel for Falaj Hazza Park, Al Ain

About this project

Falaj Hazza Park is one park inside a larger Al Ain programme covering 34 parks and game sites. Its irrigation pump set, a duty and standby pair of 7.5 kW pumps, needed a control panel and the instrumentation to run it.

The panel is split in two, and the split is deliberate. The motor control centre is Form 2B in a GRP enclosure and stands outdoors, because that is where the power has to be. The PLC panel, with its 10 inch touch screen HMI, is Form 2B in a sheet steel enclosure and sits indoors. Putting the controller and the operator interface in the harsher position would have saved a little cable and cost more over the life of the station, since a touch screen behind glass in full Al Ain sun is a component with a short and predictable life.

Instrumentation is the substance of the job rather than an accessory to it. One pressure transmitter and one pressure switch, two level sensors and six level switches, one anti flood sensor, and monitoring and control of two flow meters. Six level switches on a single station looks generous until you count what they are for: start and stop levels for each duty step, plus independent high and low protection that does not depend on the analogue measurement being correct.

The panel was built to the single line diagram issued by the consultant, with the drive and protective devices to the specified manufacturer, and assembled locally. It was tested before delivery, and handover included the installation report, the testing and commissioning report and a supply certificate.