VFD for Pumps: Setup and Energy Savings
How a VFD saves energy on centrifugal pumps via the affinity laws, plus duty rating, PID/multi-pump control, dry-run protection, and sizing.
10 min read
Technical
Energy Saving guides
Guides and notes on industrial electrical and automation parts: selection, wiring, settings and ordering.
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VFD Energy Saving on Pumps and Fans: Affinity Laws
The affinity laws show why cutting a centrifugal pump or fan's speed 20% can cut its power draw nearly in half, and where that cube-law estimate breaks down in real...
9 min read
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