Variable-speed pump drives can be retrofitted for short payback period

Armstrong, variable speed pump

Armstrong’s IVS102 range of variable-speed drives is suitable for all types of centrifugal pumps with motors up to 450 kW in new and existing applications, for heating and cooling. Many of the features required for variable-speed pumping are built into the inverter’s design, reducing the need for ancillary components and cutting overall capital cost. Installation costs are also lower as the built-in mains isolator option and flow compensation reduce the need for on-site wiring.

The energy savings that can be achieved make possible paybacks of less than 12 months for retrofit projects.

The inverter’s automatic energy optimisation option continuously monitors motor speed and load and adjusts the applied voltage to maximise energy savings. Even at full speed, voltage will be reduce if the load is less than 100% — automatically compensating for oversized motors that are not fully loaded.

The built-in flow-compensation feature eliminates the energy loss that can be caused by an incorrectly placed sensor. A serial communications port provides connection to a BMS.

For more information on this story, click here: August2010, 170
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