Square D Power-Zone Switch Assembly

[wbd]

Hello,
I have encountered a situation with a Square D Power-Zone Switch Assembly, nameplate picture attached. My big concern is that this is installed on a 13.8kV system but the switch is rated at 5kV.
My questions are:
1. Is it possible that this switch could have been manufactured as a 15kV but mislabeled?
2. Is it possible for the switch to be converted to 15kV and the nameplate not updated?

I am doubtful on either one as the fuses on the nameplate and spare fuses at the facility are 5.5kV rated. I don't know if the existing cabinet could support increase in clearances needed to go to 15kV plus I would think a field retrofit would cost more than replacing.

I don't know the history but the transformers fed from these switches have a 1990 date on the nameplates but I don't know the year of this SQD equipment. I hoping that some people with more SQD experience may be able to clear this up as I find it astounding that this could be the case.

Thank you

 

[waross]

Is this switch on the secondary of a 13.8:480 Volt transformer?
The 9f62dcb200 is listed as a 5.5 kV fuse.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[wbd]

This is on the primary side, 13.8kV comes from the utility pole into this switchgear with 3 fused bays, each feeding a 13.8kV transformer primary, the secondary is 208Y/120

 

[melspuds]

I believe that 5kV & 15kV load break switches are the seem switch but the fuses are, of course different. Square D calls that switch HVL (high voltage load).
I do not have the Sq D Digest with me now, but I remember that bays are about 3'+ wide.
Hope this helps and good luck,
Dave

 

[dpmac]

Note the BIL Level listed on nameplate is 95kV.
Pretty standard on 13.8kV equipment.

 

[Zogzog]

Only differences in parts book for these are for 600 or 1200A and some differences based on fault ratings. so think the 5 kV and 15kV are the same switch besides the nameplate info (And fusing)