You may need to have an electrical engineer review the installation. I did a single phase pump a few years ago and ran into electrical problems (for which I was blamed). Hired an EE and he went through and found the electrician messed up the installation from the service right through to the pump as well as the generator feed and connection. Didn't have a converter, but did have two transformers because the electrician told us the wrong voltage (208 v. 240 - for which I was also blamed).
BTW, what section of the Code says Phase Converters are not allowed? I couldn't find that at the time, but had rejected the idea anyway. At 11:58 AM 8/26/2009, you wrote: >I need some education of Phase Converters. > > > >A 300 gpm Fire Pump (Tank fed), is supplied by one of these things. Single >phase only is available, so one of these has been installed to make it work. >Installed in '06-07ish, just replaced main board in controller. I was there >to do test following part replace. 240vac, dropped to 106-108 across the 3 >as indicated on panel. Middle leg showed 422vac in event log, as high peak. >When started, pump shaft (vertical) jumped up and down repeatedly. We red >tagged it and are waiting on word from electricians. Pump Motor checked out >fine. I know they are not allowed, but it was approved, so., I just test it. > > > >R/ > >Matt > > > >Matthew J. Willis, CET > >Automatic Fire Sprinklers > >Norred Fire Systems L.L.C. > >318-387-1134 Voice > >318-387-1163 Facsimile > >[email protected] > > > >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
