I know it has been a while since my last post. I asked a question sometime ago about a problem one of my customers were having with a 3 hp 3 phase propane pump motor. Got alot of great ideas (thanks to you guys) we finally narrowed it down to a bad set of contactors (AFTER WE HAD REPLACED JUST...
Thanks again guys. I have'nt gotten back out there yet to try the new fuses. I did test the voltages under load. I don't recall excatly what they were but it was 5 to 10 volts dop at start up and an imeadiately back up to normal. That's normal on start up right???
Well we have sent the motor off and had it tested and "tuned". They claim they could'nt find anything wrong. My customers employees say they checked the pressures and the by-pass is working properly. (last time I was there I could'nt find any marks on any of the plugs; ie. from having had a...
Well I don't know if the company will actually bench test the motor or not,but the customer (on my recomendation)(hope it was right)decided to send it to a motor shop in Franklin, Tn.
I suggested plumbing in a guage to see how and how much pressure was building. Once I told him My estimate of...
Thanks Guys. I really appreciate the help. It was a 3 hp sealed motor and yep it was class 3 Scotty. It was wired for low volt 230 with possible high volt 460. I checked amp readings on all three legs and got 9-10-11 amp readings (respectively) The motor was rated at 8.1 amps, wired low volt...
I am a self employed residential and light industrial repairman. I don't get many calls on 3 phase stuff but have recently with the addition of a new customer. He is a propane dealer and has several 3phase applications for his pump motors. I am about to check on a job this morning and was...
