480v Transformer, to 240, 120, Grounding

[pparana]

Good evening,

I am setting up a step down transformer for marine use, based on the attached diagram I am planning on feeding in to H1, H4 using the interconnect as spec'd. On the secondary I am planning on using 120/240 using the interconnect as spec'd. I believe x1 will be 120, x2 will be 0 and x3 will be 120. I am planning on bonding x2 to the grounding. This being on a marine application am I missing anything? This is feeding off of a primary generator located on the ship.

Thanks again Guys, can always count on this forum for solid information.

 

[iceworm]

Good evening,

I am setting up a step down transformer for marine use, based on the attached diagram I am planning on feeding in to H1, H4 using the interconnect as spec'd. On the secondary I am planning on using 120/240 using the interconnect as spec'd. I believe x1 will be 120, x2 will be 0 and x3 will be 120. I am planning on bonding x2 to the grounding. This being on a marine application am I missing anything? This is feeding off of a primary generator located on the ship.

Thanks again Guys, can always count on this forum for solid information.

Just what I suspect is a mis-type.

For 120/240
x1 >> 120
x2, x3 >> 0 (x2, x3 jumped together)
x4 >> the other 120

ice

 

[kwired]

Note that you have winding taps 1,2,3 and 4 on the primary side for different primary voltages as well, as shown on the diagram is what you need for 480 volt input, but there is configurations for 456, and 432 as well. I think those taps are primarily intended to be able to change for ~208 volts input (at the 216 connection) and get 120/240 out. 432 is more of a side effect of having the 216 tap.

 

[infinity]

Just what I suspect is a mis-type.

For 120/240
x1 >> 120
x2, x3 >> 0 (x2, x3 jumped together)
x4 >> the other 120

ice

I agree, X4 not X3 as stated in the OP.