Super O Layout Progress

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  • Member since
    November, 2011
  • 1,081 posts
Posted by Postwar Paul on Saturday, October 06, 2018 12:13 PM

Train room looking great !!

we finish moving this week, hope to start on mine when the dust settles

  • Member since
    January, 2009
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Posted by 8ntruck on Sunday, October 07, 2018 10:09 PM

Paul -

What do the 5 gray controls on the left hand side of your control panel do?  I don't recall seing anything like them before.

Thanks.

  • Member since
    August, 2017
  • 19 posts
Posted by BLT_BY_LIONEL on Sunday, October 07, 2018 11:51 PM

Good luck on the move, Paul.  I was there not too long ago and hopefully won't be for a long time haha.

The gray controls are #91 Circuit Breakers produced by Lionel from 1957-1960.  Lionel made a different style circuit breaker with the same number years earlier.  These later versions were equipped with an electromagnet breaker.  I'm pretty sure this is different from the transformers' built in breakers which take a while to trip sometimes.

What I love about these (besides their look) is that they have an adjusting knob to have the breaker trip anywhere between 1-6 amps.  This is perfect because I only run 1 train per loop and won't exceed 5 amps.  They work faster than the transformer breakers and give me a little peace of mind dealing with all this older stuff.

  • Member since
    December, 2001
  • From: Austin, TX
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Posted by lionelsoni on Monday, October 08, 2018 8:00 AM

Circuit breakers are often deliberately designed to trip after some delay, to model the heating of the wires in the load circuit.  The idea is to trip before that heat reaches a dangerous level, but not so much earlier that the circuit is unnecessarily opened--called "nuisance tripping".  Motor and incandescent-lamp loads in particular benefit from this arrangement.

Bob Nelson

  • Member since
    August, 2017
  • 19 posts
Posted by BLT_BY_LIONEL on Wednesday, October 10, 2018 5:13 PM

Hi Bob.  You make a good point and that's why I like these 91 circuit breakers Lionel offered.  Depending on the load I have on each loop (NW2 switcher vs twin motor F3's) I can easily adjust it so it doesn't trip when, for example, a whistle motor in need of some oil is trying to run.  I actually just had a derailment and it instantly tripped which is reassuring... the ZW didn't have time to react.

On a side note Bob, an old topic you posted on activating signals like the #153 Block Signal and #450 Signal bridge using a GE57 bulb (instead of a relay) was extremely helpful.  You bring a lot of great information to this forum for sure.  Thanks!

  • Member since
    December, 2001
  • From: Austin, TX
  • 9,838 posts
Posted by lionelsoni on Wednesday, October 10, 2018 6:10 PM

Thanks for posting.  It's always a pleasure to know that I helped someone.

Bob Nelson

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