Short circuit curve

Positioning and objective

The aim of the test “Characterization - Open circuit – Generator – Short-Circuit” is to characterize the behavior of the machine when running in a stator winding short-circuit state.

The analysis of the machine’s short-circuit characteristics is a first step to evaluating the relevance of the machine design regarding not only parameters such as: topology, winding architecture, composition of coils and choice of materials, but also the impact of the applied field current value in the short-circuit stator current response of the machine.

The main inputs of this test correspond to the maximum field current applied in the machine and its evaluation speed. Additionally, if the user wants to evaluate a specific field current point at the same speed, a target point can be defined.
Warning: When a delta winding connection is considered, the computation doesn’t consider circulation currents. That can lead to a different result than what expected in transient computation.

In such case, it is recommended to perform a transient computation in Flux® environment. The application “Export to Flux” allows exporting the model with the corresponding scenario ready to be solved.

The following table helps to classify the test “Open circuit – Short Circuit”.

Table 1. Positioning of the test “Characterization – Short circuit – Generator – Short Circuit”
Family Characterization
Package Short circuit
Convention Motor & Generator
Test Short circuit

Subsections

Inputs

For more details, please refer to Inputs.

Thermal

For more details, please refer to Thermal.