This is the typical resistance star connection. The voltage in the resistors is Root(3) * V between phases. As it is a balanced circuit the intensity in the neutral is practically 0.
The following figure shows the case of disconnecting one of the resistors. As we can see the intensity in the neutral increases to the phase intensity.
With the neutral cut and only two resistors, the terminal tension of the resistors decreases.
In the following figure we can see a desiquilibrado system. The terminal voltage remains ROOT(3)* V between phases.
The same circuit as the previous one with the neutral cut. The tension in terminals of the resistance rises.
This is a critical case of imbalance where we could find equipment breakage.
Authors: David
