It can definitely be stated that the results of the experiments show
that almost no appreciable adverse effects on the test motor result from
six phase rectifier operation, The efficiency was unaffected by rectifier
operation, The temperature rise with rectifier operation was roughly
within 5°C of that obtained with DC generator input, The commutation was
not adversely affected when using the rectifier, These statements apply
even when the rectifier is operated at half voltage, a condition giving
very much more ripple than the full voltage ripple.