End-ring

Overview

In the Motor Factory – Design area, the environment “End-ring” allows to design the cross-section shape and the dimensions of the squirrel cage end-rings on both sides of the machine.

For both inner rotor machines and outer rotor machines, a section scrolling bar allows choosing the section in which user inputs are defined.

Scrolling selection bar where the Design, Impedance, X-Factor and Operating conditions sections can be selected.

Table 1. End-ring design area


1 Selection of the End-ring panel (Click on the icon End-ring)

Several sections allow defining all characteristics that deal with the end-ring: Design, Impedance, X-Factor and Operating.

2 Access to the section dedicated to the design of the end-rings.
Note: By default, the section Design is selected.
2.1 Selection of the shape and settings of the user inputs dedicated to the design of the end-rings.
3 Impedance tab gives the tools to compute the inter-bar impedance of the squirrel cage.
4 X-Factor tab gives access to the user coefficients (calibration factors = X-factors) that allows to tune the inter-bar end-ring resistances and inductances.
5 Operating tab to define a working point for evaluating the characteristics of the inter-bar end-ring impedances.
Note: Since the topologies of the end-ring can be different on both sides of the machine, both corresponding views are displayed (see illustration below).
Figure 1. End-ring design area – Displaying of the three design views - Front view (1), Connection side view (2) and Opposite connection side view (3)