Water is 90-100 deg F. Pump head is somewhat isolated (except for shaft) with a 1" airgap so water temp plays only a small part on the overheating. Ambient temp is low 80's. Overload is hard wired and not easily accessible without taking the motor apart.
Motor is considered overloaded since...
The motor is manufactured by Baldor elec in the US, and is a good quality motor that we have been using for many years.
Not getting a lot of help form the technician onsite. They just did a complete remodel of their facility and claim this is the only motor they are having problems with. Of...
Water is 90-100 deg, and pump head is isolated from the motor. This is the second motor, the first one failed. The klixon is non-replaceable on this motor.
Thanks for the info guys. The motor is a 3/4 HP TEFC motor rated at 208-230/460. Amps are 3.2-3/1.5 with SFA being 4-3.8/1.9 Service factor is 1.5 with a 40C amb continuous rating.
Voltage measured at the site is 495/494/493 with 1.5/1.6/1.7 amps measured. Motor is coupled to a pump moving...
That is the incoming power to our machine. It measures 495, 493, and 494 on each leg. Can the power company retap the transformer to lower the voltage?
We have a customer running one of our 460V 3-ph 60hz systems on 495V. It's within the +/- 10% tolerance of the motor, but this voltage is sustained and not intermittent. The motor is overheating and tripping the overload. Short of building a custom motor for this application, what can the...
