The winding calculator allows you to find the optimum winding layout for your electric motor in a fast and convenient way. You can investigate three-phase integer-slot, fractional-slot and concentrated windings, both with single and double winding layers where appropriate. You can compare the maximum fundamental winding factor for different combinations of number of poles and number of slots, display the winding layout for different coil spans, or evaluate the harmonic spectrum of the winding factor.
If the copper loss is too high, select a winding distribution that is more efficient. In order to calculate the copper loss, you need to know the full-load current. To calculate that, you need all of the design characteristics of the motor including stator and rotor resistance and leakage reactance, magnetizing reactance and iron loss. Induction Motor 1245 the primary. That is why such motors are known as induction motors. In fact, an induction motor can be treated as a rotating transformer i.e. One in which primary winding is stationary but the secondary is free to rotate (Art. Induction motors employ an armature that rotates within a fixed stator, with a small air gap between the two. A typical motor stator is shown below. Typical induction motor stator It consists of a core of stacked, insulated, iron laminations, with windings of insulated copper wire. This version of the EASA Motor Rewind Database software takes a large leap forward with the data that it provides members. Most notably, it now has the ability to connect to a live, ever-expanding online database of more than 250,000 windings. AC Induction Motor Construction and Performance. Easy to predict motor performance for a three-phase motor windings, notoriously difficult for a single-phase designs. Requiring bypassing of the failed coil, replacement or rewind. Electric Machine Parameter and Testing — Part 5.
Emetor specifically disclaims any warranties, including, but not limited to, the implied warranties of merchantability, accuracy, or fitness for any particular purpose. In no event shall Emetor be liable to any party for any damages arising out of the use of information from this winding calculator.
Determine number of slots and number of poles
Induction Motor Rewinding Calculations
To get started, choose the approximate range of number of poles and number of slots that you are interested in. After updating the table, the drop-down list below lets you select whether to display the number of slots per pole per phase, the maximum possible fundamental winding factor, the number of winding symmetries, or the least common multiple between the number of poles and the number of slots in the table.
Investigate and edit specific winding layouts
Induction Motor Rewinding Calculation
Click on a cell in the above table in order to investigate which winding layouts are possible for that specific number of poles and number of slots.