变频泵计算器 💡

How to Use the VSD Pump Calculator

Variable speed drive (VSD) pool pumps save energy because pump power scales with the cube of speed (Affinity Law). Running a VSD at 50% speed uses only 1/8 the power of full speed — massive savings over long run times.

Enter your current single-speed pump HP, daily run hours, and electricity rate. Then specify the VSD schedule: hours at 100%, 75%, and 50% speed. The calculator compares annual electricity cost and shows percentage savings.

Typical savings range from 50–80%. Add the new pump cost to see payback — most residential VSDs pay back within 2–4 years. Keep total runtime long enough to achieve one full pool turnover per day.

FAQ

泳池过滤的最佳RPM是多少？

对于标准过滤，大多数VSD泵在1,000至1,500 RPM的低速下最为高效。这能在使用极少电力的情况下移动足够的水以保持清澈。

泵在半速运行时使用多少电力？

根据泵的相似定律，如果将转速减半，功耗会降至八分之一。这就是VSD泵能节省如此多金钱的原因。

盐电解槽需要高速运行吗？

大多数盐水氯化器和加热器都有最低流量要求。您必须将泵速设置得足够高（通常1,800+ RPM）以触发流量开关。