Original poster: "Gerry Reynolds" <gerrytesla@xxxxxxx>
Hi Bob,
Gerry R.
Original poster: "Bob (R.A.) Jones" <a1accounting@xxxxxxxxxxxxx>
If you assume an open circuit or a short circuit at the transformer end and a short circuit at the sg end it difficult to see how the voltage on the line increases assuming any simple transmission line effects. Perhaps it more than just a transient on a line effect. For example if it happens that the primary transient period is harmonically related to the line length perhaps the voltage could build up.
I would expect that if you put a series resistor at least equal to the characteristic impedance of your cable which I think is 50ohms it will damp the line transients.
So your 1kohm resistors should work fine and will have the added benefit of reducing RFI. As you say it forms a low pass filter or Terry filter.
This suggests the low pass filter R's should be mounted as close as possible to the SG.
Perhaps R's could be added on the primary side of the SG to reduce RFI from the line transients of the primary. They would have to be by passed with inductors so they primarily damped the HF transients. Don't know if practical solutions exist for this suggestion.
Robert (R. A.) Jones A1 Accounting, Inc., Fl 407 649 6400