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Create DateSeptember 22, 2017
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Variable frequency drive (VFD) controllers are an efficient and reliable way of using the same pump for varying flows and heads, and still keep it as close as possible to the best efficiency point on the pump's curve. This helps to increase irrigation efficiency and reduces electricity costs. However, not all pumps or irrigation systems will benefit from the installation of a VFD controller. Each pump and irrigation system needs to be assessed to determine if a VFD controller is appropriate, and what type of VFD controller should be installed. In some cases the pump may need to be upgraded before the benefits of a VFD will be achieved.