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Re: PHOTOS: CALTRAN CALTRAIN VII

Posted by nasadowsk on Sun Apr 26 13:06:49 2020, in response to Re: PHOTOS: CALTRAN CALTRAIN VII, posted by jailhousedoc on Sat Apr 25 19:43:09 2020.

25kv, 60Hz. Nobody in their right mind builds a 1.5kv or 3kv DC system these days.

The 'phase balance' issue is bullshit foamers come up with to make excuses for not going to 60 Hz. The French and British blew that arguement out of the water in the 50's, with 'weaker' grids. There's zero reason to use 25Hz. None, period, full stop. Yes, I know some guy at Atmrak wrote a paper in the late 70's proclaiming supposed 'advantages', I think he was hung up on power factor. Today, you have to be an idiot to make a locomotive or EMU that isn't dead nuts unity. Actually, you'd probably have to try at it.

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