Kenyon T-674 transfoma specs

[The Slab Bacon]

As some of you know, I had a plate transfoma crapout in my 4-1000 rig a while back and have since been limping it along with a much smaller plate transfoma than what it was used to.

I recently picked up a pretty massive chunk of plate iron but dont have specs on it.
the secondary is labeled 2850/3450, CT, 2858/3450, and the primary terminals are labeled Com, HI, Low. It is a large hunk of iron weighing around 150 lbs. I have installed it in the rig and it is loafing along happily at full strap again.

I have catalogs for Stancor, Thordarson, UTC, and Chicago standatd, but nothing at all for Kenyon. I was wondering if anyone out there has one for Kenyon as I am curious as hell what the current rating for this iron is. It is a Kenyon T-674.
thanks in advance to whoever has some specs.

                                                                  the Slab Bacon

[WA1GFZ]

Frank,
A transformer is all about temperature rise. I would think you are fine if it stays stone cold and the voltage is stable. One trick I learned is measure the secondary resistance cold then check it again after heavy use. Resistance changes about .4% per degrees C. If you know the cold temp around 25 degrees C then you can determine how hot the winding gets. I think a mil transformer wants to be lower than 45 C degrees temperature rise.
I bet Gary WZ1M has some cool tricks for testing. 
so .004 X 45 = 18%  

[WZ1M]

I dont know if this a potted transformer or not but a 90 lb plate transformer, not potted, with those secondary voltages will get ya about an amp and a half (1-1/2 amps). I bet that will put you well within the ball park.
Regards,
Gary...WZ1M

[WA1GFZ]

Kenyon uses heavy end bells. I figure 2500 va.(maybe CCA) Also saw a Kenyon rated at 850va weighing 45 pounds. Either way it should do the job. Run a big wire back to the panel since 115 vac primary. Best thing to do is see how hot the secondary gets. This will tell you what is going on inside the winding.

[The Slab Bacon]

Frank, Gary,
                 this transfoma is probably 17" long, and close to 12" square on the ends. The end bells are made of sheet metal (not cast iron) with bakelite plates in the ends to mount the terminals. The terminals are all 1/4-20 bolts, with all 3 secondary terminals also coming through brown porcelain insulators as well. The laminated core looks to be at least 12" x 12" x 12". And it has to weigh at least 150lbs. After humping it into the cabinet twice, I felt the BA's drag on the ground both times!! It is also painted black instead of the usual Kenyon gray.

I have absolutely no doubt of it's ability to run the transmitter. At 500+mA of plate current draw and quite a few old buzzard transmissions, it doesnt even come up to ambient room temperature. It remains ice cold!! the primary is also pretty beefy as the initial inrush current on fire up would instantly take out the breaker for that line.
(120v primary) So I had to install a step start circuit.

Like I said before, I have no doubts of it's capability to run the rig. With no more sag and the plate voltage now holding 3200v at full load, the audio peaks now go off of the 3" scope screen again!! It now runs full strap on high tap!!

I am just curious what the factory rated it at. It is a huge mother!

                                                                        the Slab Bacon

[WA1GFZ]

Frank,
That sounds close to the size of my UTC CG 310s 4000 VDC 600 ma. CCS
Two in parallel get it done. Now you need another one to balance out the 240V line. I did a pair of BC610 transformers for a while till I picked up the two new UTC oxen sitting side by side in the bottom of a rack. Rack not likely to tip over

[N3DRB The Derb]

I can vouch for more munky swing. noticed it before he said he got it installed. Next night of good conditions going to make a small video of a strap n swing contest off the meter of the FT 101.