What is the voltage ?

Randy Stahl

Member since
June 2004
From: roundhouse
2,747 posts

Posted by Randy Stahl on Wednesday, August 4, 2004 10:49 AM

You think the GP 35 was bad try the SD24 or the SD35 LOL!!!!
Randy

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oltmannd

Member since
January 2001
From: Atlanta
11,971 posts

Posted by oltmannd on Wednesday, August 4, 2004 10:16 AM

As diodes have improved, the voltage has gone up. Having higher voltage available means you don't have to do field shunting to maintain HP at the high end of the speed range. The GP35, with it's DC main gen had a nightmare of transition and field shunting steps in order to keep 2500 HP going to the motors at max speed. A GP40-2 can keep full HP at full speed without any transition or field shunting because it can get higher voltage out of the traction alternator (rectified to DC by diodes)

-Don (Random stuff, mostly about trains - what else? http://blerfblog.blogspot.com/)

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Randy Stahl

Member since
June 2004
From: roundhouse
2,747 posts

Posted by Randy Stahl on Wednesday, August 4, 2004 10:04 AM

With a limitation of 600 volts, raising locomotive horsepower would not be possible. 600 volts is nominal. Believe me , I've been loadboxing engines for many years.
Randy