Transformer Wiring

doggie · « **on:** 26 Mar 2006, 10:15 pm »

Hi,

As many times as I have wired up dual primary/secondary transformers I can never seem to figure out the wiring diagrams. I have an Avel-Lundberg Y23 type transformer. I think that I understand that I wire the red and orange together to form the "center-tap" or ground which will go to my Hypex power supply but I am a little confused by the wiring for the primaries. Avel gives this diagram for their transformer. I am in the US and run on ~115V.

My guess is #2 but hooking it up to 115V rather than 230V. Which choice would be correct?

Thanks a lot,

Paul

DanWiggins · « **Reply #1 on:** 27 Mar 2006, 01:58 am »

Use diagram 1 for the primaries, diagram 2 for the secondaries.

Dan Wiggins
Adire Audio®

doggie · « **Reply #2 on:** 27 Mar 2006, 02:47 am »

Thanks Dan,

That is actually how I have it wired up. For some reason I was thinking that if I had the primaries in parallel then I had to put the secondaries in parallel also. I started to get cold feet just before doing the smoke test so I wanted to check. I hate the smell of burning insulation

Best,

Paul

StevenACNJ · « **Reply #3 on:** 28 Mar 2006, 09:59 pm »

Avel Y23 Question

Given connections as described above, I have a few questions:

1. Primary Parallel - do the blue/vio wire go to line & gry/brn wires go to neutral?

2. Secondaries Series - Does the black wire go to + & the yellow wire go to -? (red & green become grnd)

Thanks

DanWiggins · « **Reply #4 on:** 29 Mar 2006, 06:06 am »

Steven,

1. Yes.
2. Yes, but the ground is red and orange according to the diagram in the first post.

Dan Wiggins
Adire Audio

StevenACNJ · « **Reply #5 on:** 29 Mar 2006, 12:02 pm »

Thanks Dan

Dont know where I got the green from