home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.electronics
- Path: sparky!uunet!charon.amdahl.com!netcomsv!netcom.com!nagle
- From: nagle@netcom.com (John Nagle)
- Subject: Re: DC to AC on large scale???
- Message-ID: <1993Jan26.052643.15799@netcom.com>
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- References: <1993Jan21.095254.62979@cc.usu.edu> <1993Jan22.134237.13381@waikato.ac.nz> <1jp8uvINNb7s@coral.bucknell.edu> <1k0rksINNc34@rave.larc.nasa.gov> <schumach.728009085@convex.convex.com>
- Date: Tue, 26 Jan 1993 05:26:43 GMT
- Lines: 16
-
- schumach@convex.com (Richard A. Schumacher) writes:
- >In <1k0rksINNc34@rave.larc.nasa.gov> kludge@grissom.larc.nasa.gov (Scott Dorsey) writes:
- >Sure, but the original question was about regional power distribution.
- >Did anyone ever use MG sets to convert AC to DC to feed more than a
- >few city blocks?
-
- Yes. Entire subway systems (including NYCs) were driven by MG sets
- at one point. The original NYC subway power plant was DC, with giant
- reciprocating steam engines, and operated into the 1950s. One of the
- 20' long pistons can be seen in the Smithsonian. When the steam
- engines were replaced, MG sets replaced them, to produce the 600VDC
- used by the subway system. I assume they've upgraded since the 1950s.
-
- But do we really care?
-
- John Nagle
-