I know motors are designed to start at +/- 10% of rated voltage. For instance, a 208-230V motor should be able to start at 187V. Does this mean that the motor can start under full load with the voltage at 187V before the motor is started? If so, the voltage drop will be even lower with the...
I am looking for information on Automatic Thermal Overloads (ATO), specifically on installation. What is the best location and how do they actually work? I have looked at websites for manufacturers and cannot find any detailed information. Any information is welcome, links to websites are...
Taking a sample of 10 electric motors (2Hp, 208/230V, 3600rpm, single phase, capacitor start)and coupling them to a pump we tried to find the Pull/Up Torque of each motor. The motors were designed to have a minimum Pull/Up Torque of 90 oz-ft. All of the motors are from the same batch off the...
While testing a line of motors with the required pumps, we noticed that the pull-up torques varied. The motors were designed as 208-230V, 3515 rpm, TENV, 1 Phase. The required minimum pull-up torque was set at 90 oz-ft. This motor was designed with at a minumum of 99 oz-ft of torque. While...
