From: arl_123234@hotmail.com   
      
   On 4/3/19 11:47 AM, gfretwell@aol.com wrote:   
      
   >   
   > Looks like a boost transformer setup to me. Note the isolating   
   > insulators on each side of them and windings going to each side of the   
   > isolation. That is wye distribution IMHO based on the transformer   
   > connection down the street that is feeding the triplex. Going the   
   > other way there looks to be a 3p 208 wye that is abandoned for some   
   > reason by that parking lot. I never saw much 3p delta vee (red leg) up   
   > there when I was in the computer biz.  Everything was 208 wye. It does   
   > seem pretty popular in SW Florida.   
      
   Hello, and thanks for the reply.  I was focused on what pole-mounted   
   devices might be used for MV-to-MV voltage boosting and not involving   
   any LV interconnections.  A 3-phase (delta) autotransformer (would have   
   a total of six MV terminals) would seem appropriate (think of an   
   equilateral trangle with another inscribed equilateral triangle as   
   representative of the MV-MV connection.)  I just haven't come across any   
   MV distribution hardware online to accomplish this.  Electromechanical   
   MV voltage regulators (with their long tanks) can be used as well.  I   
   did come across a MV voltage regulator that has the footprint of a   
   distribution transformer (Cooper Power Systems model S225-20-1 and   
   available for up to 19.9/34.4 kV MV systems).  IOW, it doesn't look like   
   a traditional long-tank MV voltage regulator at first glance.  Sincerely,   
      
      
   --   
   J. B. Wood	            e-mail: arl_123234@hotmail.com   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)