Industrial Communication: The Interface Is Not the Protocol
One of the most common mistakes in industrial automation is…
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Read MoreIndustrial Communication: The Interface Is Not the Protocol
Hybrid Inverter or Microgrid Controller?
A Practical Guide to Controlling Solar, Battery, Grid, and Generator…
High-Temperature Effects on Solar PV Performance and Service Life
High temperatures affect far more than the instantaneous output of…
UPS Generator Compatibility: Why They Sometimes Fight Each Other
A UPS may operate normally from the utility supply, and…
Built-in PLC Logic in VFDs
Built-in PLC Logic in VFDs allows selected drives to execute…
Why Does a Motor Draw High Current at Low Speed?
Reducing motor speed does not always reduce motor current. A…
VFD Flying Start and Catch-on-the-Fly
How a VFD Safely Restarts a Motor That Is Already…
Motor and Cable Insulation Resistance Testing
A practical guide to testing motor and cable insulation resistance…
Static or Rotating Auto-Tuning?
A Practical Guide to Accurate VFD Motor Identification Correct motor…
How to Select a VFD for Normal Duty and Heavy Duty Applications
Selecting a VFD based only on motor power in kilowatts…
VFD Derating Due to Temperature, Altitude, and Switching Frequency
The rated power shown on a Variable Frequency Drive does…
Practical Short-Circuit Current Calculation
A Practical Guide for Calculations at Transformer Terminals and Feeder…
Motor Starting Methods: How to Select the Right Solution
A practical technical guide to the main motor starting methods,…
Why Does a VFD Trip on Ground Fault?
A VFD Ground Fault trip indicates an abnormal current path…
Neutral Overheating in Three-Phase Systems
Understanding Unbalance, Triplen Harmonics, and Neutral-Conductor Loading Short Description Neutral…
Static Bypass VS Maintenance Bypass
Understanding Their Roles in UPS Operation and Maintenance Online UPS…
Did Motor Torque Drop After Installing a VFD?
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Parallel Capacity VS Parallel Redundancy
Selecting the Right UPS Architecture for Critical Loads Executive Overview…