Free Motor Slip
Calculate motor slip percentage by comparing synchronous speed to actual speed. A key indicator of induction motor health and loading conditions.
Configuration
How to Use
- Enter the Synchronous RPM (based on poles and frequency).
- Enter the Actual RPM measured on the shaft.
- The calculator determines the Slip percentage. Healthy motors usually slip 2-5%.
Common Use Cases
- Performance check
Frequently Asked Questions
What is Motor Slip?
Slip is the difference between the rotating magnetic field speed and the actual rotor speed. Induction motors need slip to generate torque.
What if slip is too high?
High slip usually indicates the motor is overloaded, undervolted, or has a mechanical issue like a bad bearing.
Pro Tip
Standard slip is 2-5%.
Related Tools
AC Motor Speed
Calculate the synchronous speed of an AC motor based on frequency and number of poles. Essential for selecting motors for variable frequency drives (VFDs).
Motor FLA Est.
Estimate the Full Load Amps (FLA) of a 3-phase motor given its horsepower and voltage. Crucial for sizing circuit breakers, fuses, and thermal overloads.