Mike Dolt Enterprises
Mike Dolt Enterprises
User: guggemos, Location: Richmond, California
Asked on: Thursday, April 14, 2011 at 3:16 pm EDT
Answered on: Tuesday, May 14, 2024 at 4:12 am EDT
Question: Not a calc question per se ... I have a client insisting on representing phasing for a 480-240/120 single phase transformer with a delta-wye combination shown on the one line diagram. I stated that this is for a three phase configuration and a symbol is not required since you have a phase-phase primary and phase-phase or phase-neutral secondary. Still, does anybody know of the use of symbol set for the 480-240/120 single phase transformer on a one line diagram?
There is no standard IEEE or ANSI symbol for a single-phase transformer with a delta primary and a wye secondary.The client may be referring to a non-standard symbol that is used by a specific company or industry. In this case, it would be best to consult with the client to determine what symbol they are using and what it represents.If the client is unable to provide a clear definition of the symbol, it is best to avoid using it on the one-line diagram. Flag for review