Irrigation operators require control systems that deliver precise control over how much water to supply and when to apply it to achieve proper irrigation management from the pumping system.
Fairford™ are experts in soft starter product design and their application to allow operators to optimise performance, save energy and reduce OPEX of water management electrical systems with the use of its advanced soft starter designs.
Fairford’s soft starters and associated products are utilised in many water management applications, including pumping stations, preliminary treatment, grit removal, primary clarifier, aerator basin, secondary clarifier, chlorine contact tank and effluent diffuser to control water pumps, chillers, air compressors, grinders, skimming tools belt presses, chlorine pumps, separators, blowers, milliscreens and aerators.
agility™ and synergy™ soft starters offer many innovative features that deliver real benefits to the operator and the system that they are connected by providing integrated protection for downstream equipment, maximise productivity, and provide intelligent control across the entire system. Soft starters have a unique 'soft-stop' feature to avoid and prevent internal water hammer within the system and therefore potentially extend the life expectancy of pumps, pipes, valves and headworks.
The “gentle” acceleration offered by a soft starter reduces mechanical, electrical stresses on the equipment and the electrical supply network during start and stop operations. Integrated monitoring software provide information and data to furnish warnings to the operator or to automatically stop the motor/pump sets if operation is dangerous and/or undesirable.
Fairford’s control features automatically adjust according to the pump type during start-up and will ensure the pump is up to speed quickly to facilitate internal cooling and lubrication reducing wear on thrust bearings (if applicable) while delivering optimised flow-rate control for the remainder of the start cycle.
The automatic stop features are ideal for open systems with no non-return valves, for example, pumps lifting water to different levels and the quick reduction of the pump speed so the flow-rate stops while maintaining forward rotation as water drains from the systems pipes delivering a very effective stop and preventing any reverse rotation.
Ideal for low head systems
Soft starters are ideal for low head systems with high flow rates and long pipe lengths were automatic controls provide a long and steady reduction in flow rate ensuring fluid momentum is gradually dissipated thus preventing any pressure surges, also suitable for flat systems and/or pump curves. The precise automatic control features provide an extended and gradual reduction in speed through the critical point of control then finalises the stop cycle rapidly when the desired controlled flow-rate is achieved.