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#58 Turbos

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TOOOOOooooooooo Coooolllll!

The turbos needed to be re-worked after I got them from the supplier as the performance was poor to non-existent.  After that was done, a circuit was made to change the 3-phase AC to DC (thanx Wayne for the help).  The 3 AC wires from the turbo are attached to the center of the circuit board (as in the picture).  There's 9 terminals in the center for the 9 wires (from the 3 turbos).  The DC output is at the ends.  To run up the turbos, compressed air was used.  Winding these things up is pretty cool.  They make a whining sound, especially at high speeds.  They put out about 14VDC at 80psi.  The DC outputs will be attached to the battery to charge it.  The air compressor (which is used for the air brakes), runs the battery down after about 8 hours of running.  With the turbos charging the battery, that shouldn't be a problem anymore.

Here's the circuit board.  I just bent over the diode leads and soldered them together. 

The total cost for the electronics was under $10 (and that was for all three turbos)

Turbo AC to DC Converter Circuit Parts List
     
Description Part# Qty
Diodes 3 amp 100V fast recovery rectifier GI851 18
3-Pos PCB terminal block TER-203 3
Resettable circuit protector, 1A - 2.5A CPX-100S 1
Solderable Perf Board PC-2 1
Plastic Box (made for above perf board) TB-2 1
     
Parts bought from "ALL ELECTRONICS CORP"    
www.allelectronics.com    

 

Here's a circuit diagram for one of the turbos (3-phase AC to DC)

Circuit drawing from www.allaboutcircuits.com

 

Here's the turbos hooked up for steam and all the electrical wiring done.  The white tubing insulation was used on the steam lines.  Copper tubing was used for conduit to run the wires through.

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#01 So It Began #2 Frame #3 Drivers #4 Quartering #5 Trucks #6 Frame & Wheels #7 Side Rods #8 Cylinder Boring #9 Cyl/Valve Liners #10 Cyl/Valve Cover #11 Pistons & Valves #12 Cyl Assembled #13 Boiler #14 Suspension #15 Crosshead #16 Brakes #17 Link Support #18 Bell #19 Crosshead (again) #20 Connecting Rod #21 Stationary Runner #22 Smokebox #23 Valve Gear #24 Running on Air #25 Piston Rings #26 Axle Pump #27 Plating #28 Lubrication #29 Blast Nozzle #30 Stack #31 Steam Turret #32 Burner Manifold #33 Mounting Brackets #34 Boiler Insulation #35 Jacketing #36 Cab #37 Throttle #38 Reverse Lever #39 Track Test #40 Smokebox Access #41 Electric Blower #42 Turbulators #43 Burner Test #44 Piping #45 Cab (part 2) #46 Inaugural Run #47 Post Steamup #48 Smokebox Lights #49 Running Boards #50 Pilot #51 Skirting #52 Paint #53 Lettering #54 Whistle #55 Skyline Casing #56 Fuel System Mods #57 Odds and Ends #58 Turbos

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Last modified: 09/02/2017.