iotrunwl Blog
Technical notes on pump systems
Practical guidance on solar pump inverters, VFD pump controllers, booster systems and permanent magnet pump technology — written for engineers, installers and distributors.
Solar Pumping
How to Choose the Right Solar Pump Inverter for Your Irrigation System
Power range, MPPT efficiency, IP rating and AC/DC switching all affect uptime in the field. Here's how to weigh them for your project.
Pump Controls
VFD Pump Controllers vs Traditional Pump Controllers: What's the Difference?
Fixed-speed starters are simple and cheap, but VFD controllers save energy and protect equipment in ways a basic starter can't. Here's the practical difference.
Motor Technology
IE5 Permanent Magnet Pumps vs Standard Induction Motors: An Efficiency Comparison
Permanent magnet motors post higher efficiency ratings than standard induction motors at every load point, not just at rated speed. Here's why that matters for pump selection.