Great update Old Grey! Like you, I prefer old things that still work.
One last comment. I found 3A breakers were insufficiend for running dual motor postwar with lighted passenger cars. I had to boost my breaker values to 7A to handle those loads.
Thread Update. It's been quite a while since this thread. In addition to the TVS Diodes I use 3 amp brakers. Everything including Postwar locomotives are working great. I have found that running the ZW at 11-12 volts instead of 18 lets the Lion Chief locomotives creep along for switchching purposes. I leave it at this setting as it just cut off some of the top speed. One could raise it back to 18 at any time if higher speeds are desired.
Just like Postwar trains I'm old and I still work.
BigAl 956I reccomend a 5-7 amp circuit breaker in series with the block feeds to protect the layout and locomotive wiring from power shorts.
My bad, I meant to say, protect from shorts like derailments. The ZW has so much wattage a short can cause a lot of damge to the layout wiring or even internally in a locomotive from the heat. The transformers internal breaker is designed to protect the transformer. An in-series breaker to the track protects the track and locomotive wiring from melt downs.
Thanks everyone. I have a rebuilt ZW on the way from the Tinman at Tinman 3 Rail. I also ordered TSV Diodes discussed in depth on another thread within this forum.
https://www.tinman3rail.com/?page_id=261
BigAl 956 I reccomend a 5-7 amp circuit breaker in series with the block feeds to protect the trains electronics from power surges.
Breakers & fuses are current limiting devices and do not protect from power surges, which are over-voltage situations.
The ZW is perfect just the way it was built for your purpose. If you want to have power districts that trip at less than the 14 amps of the entire ZW, you can place individual breakers for each control handle at the rating you desire.What is needed is Transient Voltage Suppression.
Rob
Yes, you can use a traditional ZW or similar transformer to furnish the 18v and sufficient wattage to the track. I reccomend a 5-7 amp circuit breaker in series with the block feeds to protect the layout and locomotive wiring from power shorts.
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