1 / 4

Water & Wastewater Pump Station Control Basic parts:

Water & Wastewater Pump Station Control Basic parts:. Questions: IP rating material soft-start or VSD pump & station control method other items ie fans, valves, flowmeters etc. Metering & current limiters. Telemetry & Control. Pump controls. Main switch chassis. Gas seal section.

makani
Télécharger la présentation

Water & Wastewater Pump Station Control Basic parts:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Water & Wastewater Pump Station Control Basic parts: • Questions: • IP rating • material • soft-start or VSD • pump & station control method • other items ie fans, valves, flowmeters etc Metering & current limiters Telemetry & Control Pump controls Main switch chassis Gas seal section

  2. Drives v Soft-starters • Advantages • Unity power factor to supply • Wide supply voltage 380-480V, +10% -15% (helpful where power supply can be unreliable) • Balanced 3 phase to motors • Variable or multiple fixed speeds • Provides only enough power to maintain selected speed (cost savings) • Starting current is less than full load current reducing costs if maximum demand tariffs are charged • Allows fine tuning of speed to maximise pumping system efficiency • Discreet IO, Modbus, Ethernet and other control options • Direct torque control for extended control of ramp up/down function • Pipe-fill, pump clean and alternation software • Disadvantages • - Purchase price 3 x that of comparable sized PSE soft-starter • Cooling air flow • More difficult to configure

  3. Control methods Most pump stations are installed with multiple pumps, usually two or three, which are controlled either locally, via telemetry, or a combination of both. Each approach has advantages and disadvantages. One approach is to provide consistency across pump stations, making life easier for operators and electricians. This can be achieved by installing a MultiSmart controller, ideally with a comms connection to telemetry, and also to the drives/soft-starters. The controller can then look after pump alternation, be configured as a PLC to control valves and other items, and to provide an operator interface. Where a comms connection is available, it is possible to access motor currents, faults and other key information without control wiring or current transformers.

  4. Handy Links: http://www.mvcontrols.com.au/ http://www.mvcontrols.com.au/product/acq810-2/ http://www.mvcontrols.com.au/product/electronic-soft-starters-2/ http://www.mvcontrols.com.au/product/multismart-for-pump-station-control/

More Related