Quote:
Originally Posted by Penthode
Incidently the Tesla standard was 60Hz and he had to face opposition at Niagara when the engineers there wanted 16Hz. The compromise was reached at 25Hz in 1893.
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16 2/3rds is still a standard frequency for RR traction in Germany, Austria, Switzerland, Sweden, and a few other countries. 25Hz became the standard in the US and is still used (see above post)