Homopolar Generator Effect of Sudden Short Circuit
Amulya Das Gupta · IEEE Transactions on Power Apparatus and Systems · 1968
The effect of a sudden short circuit on a homopolar generator is analyzed and the transient time constant is deduced. The effect of nonuniform air gap flux is considered. It is shown that the time constant of a machine with a very small air gap and thick cylinder is quite large, while the time constant of a thin cylinder machine with a larger air gap is small.