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| Subject: | Re: LF: 33 Hz QRM |
| From: | Andy Talbot <[email protected]> |
| Date: | Thu, 17 Mar 2016 14:18:27 +0000 |
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Is that to minimise skin loss in steel track ? UK Third rail is, of course, DC, and I once spent an idle moment calculating the loss if 50Hz AC were to be used with magnetic iron conductors. I think I came to the conclusion a 1MW train could probably travel a few hundred metres before it lost its power supply. andy G4JNT On 17 March 2016 at 13:21, Johan Bodin <[email protected]> wrote: Railway QRG is 16 2/3 Hz in Sweden too. |
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