Abstract: The severity of unsymmetrical system faults is affected by the negative sequence impedance of the connected machines. These impedances in turn depend largely upon the character of damper ...

From time to time the question of how to handle the impedance introduced into the circuit by a regulating transformer has arisen. This paper has been written to present general equations by means of ...

It is difficult to accurately calculate the short-circuit impedance, due to the complexity of axial dual-low-voltage split-winding transformer winding structure. In this paper, firstly, the leakage ...