Hooking up the Topaz Isolated Transformer

OK.This diagram show S1 and S2, the connection still the same, parallel=120V, in series=240V
http://daitronglobal.com/products/power/image/910_3.gif

NO!  S1 and S2 connections are not the same. 


The wiring diagram only shows them connected to H4 and X4 respectively when the transformer is wired as a step up "Grounded System" or wired as a step down "Grounded System".

The S1 shield is only connected to H4 only *IF* H4 will be grounded and become a "Grounded Conductor", a neutral Conductor.

The S2 shield is only connected to X4 only *IF* X4 will be grounded and become a "Grounded Conductor", a neutral Conductor.   

Like I said in my above post The OP is wiring the xfmr as a step down transformer. Primary of xfmr will be fed from 2 Hot Ungrounded conductors. S1 Must be removed from H4. Period!

What is the purpose of the Electrostatic Shield in this power transformer? What if I left it open?

Hi Audiogoners,
After thinking carefully, I decided to hire a tech. Thank you Jim.
I will report back when it is done.
Thank you all who have contribute into the thread.
Calvin

@dangcaonguyen 


You may find this of interest. Notice the 120V  balanced connected loads on L1 to neutral and 120V L2 to neutral connected loads are in series with one another.  


https://www.youtube.com/watch?v=eVamt9IdQd8  

.

Like I said in my above post The OP is wiring the xfmr as a step down transformer. Primary of xfmr will be fed from 2 Hot Ungrounded conductors. S1 Must be removed from H4. Period!

Thanks @jea48 corrected my mistake, my bad!
Jim, just for my curiosity, why don’t you recommend OP move S1 to ground terminal? Isn’t the electrostatic shield need to be grounded to divert primary noise to ground?

After thinking carefully, I decided to hire a tech.

Great! Please let us know the result when it is done, where are you going to install the topaz transformer and what will be connected to it?