GG-1 and E-60 operational preservation

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bratkinson
Posts: 416
Joined: Fri Mar 19, 2004 4:38 pm
Location: QB 100

GG-1 and E-60 operational preservation

Post by bratkinson » Tue Jun 25, 2019 10:31 pm

In my opinion, most quiet and fastest acceleration trophy belongs to a GG1. I recall 30+ years ago riding the Broadway Ltd to New York. After the power change at Harrisburg to a single GG1, it literally YANKED the train out of the station. I was pushed back in my roomette seat as if I was in a high performance street drag racer (I had one several years prior). All I could think of was WOW! Not even todays' Acelas can lay me back in the seat like a GG1.

mtuandrew
Posts: 6098
Joined: Tue Feb 20, 2007 2:59 am
Location: the Manassas Gap Independent Line

Re: Charger reactions as a rider

Post by mtuandrew » Wed Jun 26, 2019 2:23 pm

So, which billionaire do we hit up for the $5m to restore a GG1 to service? Seems that an E60’s guts would do a serviceable job at replacing the old PCB-laden transformers :-)

Glad the Chargers are meeting expectations, at least with passengers.

Backshophoss
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Joined: Mon Mar 05, 2012 7:58 pm

Re: Charger reactions as a rider

Post by Backshophoss » Thu Jun 27, 2019 6:10 pm

The E-60's could run on the NEC today,they had the moveable taps to run on all 3 voltages and both hz,however the controls are likely outdated
and useless.
Be one heck of a restoration of that E-60 at RRMPA as a running motor
The Land of Enchantment is not Flyover country!

mtuandrew
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Joined: Tue Feb 20, 2007 2:59 am
Location: the Manassas Gap Independent Line

Re: Charger reactions as a rider

Post by mtuandrew » Fri Jun 28, 2019 6:25 am

Backshophoss wrote:
Thu Jun 27, 2019 6:10 pm
The E-60's could run on the NEC today,they had the moveable taps to run on all 3 voltages and both hz,however the controls are likely outdated
and useless.
Be one heck of a restoration of that E-60 at RRMPA as a running motor
I’d meant cannibalizing an E60 (one of the BM&LP units probably) to replace the utterly obsolescent parts in a GG1 resto, but may as well run an actual E60MA as well!

John_Perkowski
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Joined: Wed Mar 17, 2004 5:12 pm
Location: Off the Q main near Parkville MO

Re: GG-1 and E-60 operational preservation

Post by John_Perkowski » Fri Jun 28, 2019 11:25 am

Admin Note
Topic split from the Charger impressions as a rider in Amtrak
~John Perkowski: Moderator: General Discussion: Locomotives, Rolling Stock, and Equipment
Assistant Administrator: Railroad.net/forums
Jeff Smith & Greg Primrose now own railroad.net!

ExCon90
Posts: 4505
Joined: Thu Sep 18, 2008 1:22 pm

Re: GG-1 and E-60 operational preservation

Post by ExCon90 » Fri Jun 28, 2019 3:23 pm

Weren't the E-60's the ones that had trouble staying on the tracks at higher speeds? Now if you could marry the innards of an E-60 with the stability of a GG1 ...

D Alex
Posts: 171
Joined: Fri Dec 08, 2017 5:15 pm

Re: GG-1 and E-60 operational preservation

Post by D Alex » Sat Jun 29, 2019 5:00 pm

The problem with GG-1's is that the motors were designed to run at 11kW/25hz AC. Main transmission lines run at higher voltage, but at 60 hz. You would need to either completely replace the motors with 60 hz compatible motors, or create a specialized overhead circuit running at 25 hz just for them. A 3rd option would be having a full-sized transformer station on a flatbed behind the locomotive, with extensive wiring between them.

Backshophoss
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Joined: Mon Mar 05, 2012 7:58 pm

Re: GG-1 and E-60 operational preservation

Post by Backshophoss » Sat Jun 29, 2019 6:04 pm

While the main transformer killed off the GG-1's (The PCB Coolant),some of the frames stated cracking apart toward the end of the G's life
All the main transformers were pulled and destroyed at Haz-Mat landfill sites
The Quill motors were setup for 25hz power,not sure if they could run at 60 hz
The E-60 at RRMPA was fresh off a rebuild at Wilmington shop and could have been rigged for ACSES easy enough
While not speed demons,they worked the silver service trains and handled the Circus train on a regular basis.
The Land of Enchantment is not Flyover country!

spRocket
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Joined: Thu Mar 11, 2004 9:44 pm
Location: Mokena, IL

Re: GG-1 and E-60 operational preservation

Post by spRocket » Sun Jun 30, 2019 2:03 pm

Backshophoss wrote:
Sat Jun 29, 2019 6:04 pm
The Quill motors were setup for 25hz power,not sure if they could run at 60 hz
As I understand it, the rationale for using low frequencies in early AC rail electrification systems was that locomotive-sized universal motors ran poorly (if at all) on 50/60 Hz. High-power rectifiers to feed DC traction motors didn't become practical until the 1950s, and AC induction motors of suitable size weren't practical for general-purpose rail use until high-power semiconductors became feasible.

In theory, the GG-1 traction motors could run on DC, given a suitable rectifier. Whether or not that would work in practice, I don't know, and it would probably require a rip-and-replace of most of the electrical system including compressors and other accessories. Not to mention, the rectifiers would have to go somewhere, and there probably wouldn't be room for them.
When it's a tie at the railroad crossing, you lose.

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