Why? The NEC is still 25 cycle, and will be for the foreseeable future, from Sunnyside Yard south to Harrisburg and Wahsington.
To go east of New Haven, 25kV, you need a new transformer but you’ll need a new one anyways.
The overseas railroads (mostly in Europe) are generally operating at the same voltage and frequency today as they did when the old-timers were operating. Besides, what happens when the rest of the NEC get converted to 60 cycles?
Some one with an answer to this. Has the EU specified that its standard will be 25Kv 50HZ?
Yes, 25kV 50Hz is in the European Union’s Trans-European railway interoperability standards.
Only part of the NEC is still 25 Hz. Everything from Sunnyside north is 60 Hz. 12500 volts to New Haven, then 25000 volts to Boston. GG1s did regularly run to New Haven after the PC merger, through Amtrak, until the Swedish Meatballs repalced them. Then Metro North started the coversion process, and Amtrak comjpleted it on the Hell Gate Bridge line.
A couple of months I was exploring RR electrification links on Wackypedia and came across references to traction power transmission lines. Apparently Germany has a major 16 2/3 Hz single phase line, being fed by frequency converters and dedicated 16 2/3 Hz turbine generators - one was part of a Nuclear plant.
Dave’s idea for a running GG1 makes sense, keep the motors but run them on DC.