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Re: question about 501 information
Author: Dr Zarkoff
Date: 12-24-2017 - 11:13

To clarify:

There are two "overspeeds", both of which are intended to protect two different kinds of rotating equipment on a diesel locomotive: 1) diesel engine rpms overspeed, specified by the engine manufacturer, which protects the engine from damage which can result from rotating to fast; and 2) train overspeed which is related to wheel diameter and gear ratio and designed to protect the traction motor armatures from mechanical damage on account of spinning to fast.

When railroaders use the term "overspeed", well over 90% of the time they are referring to train speed.

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Subject Written By Date/Time (PST)
  Thanks for 501 info. Ross Hall 12-22-2017 - 23:38
  Re: Thanks for 501 info. GRRR 12-23-2017 - 10:08
  Re: Thanks for 501 info. BOB R 12-23-2017 - 12:05
  question about 501 information Steamer 12-24-2017 - 08:03
  Re: question about 501 information Hot Water 12-24-2017 - 08:27
  Re: question about 501 information steamer 12-24-2017 - 09:08
  Re: question about 501 information Dr Zarkoff 12-24-2017 - 11:13
  Re: question about 501 information OPRRMS 12-24-2017 - 10:25
  Re: question about 501 information tundraboomer 12-24-2017 - 11:26
  Re: question about 501 information OPRRMS 12-24-2017 - 11:31
  Re: question about 501 information tundraboomer 12-24-2017 - 11:33
  Re: question about 501 information Nudge 12-25-2017 - 15:37
  Re: question about 501 information Steamer 12-26-2017 - 18:07


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