Motor triping issue

Hi Bijoy,

What is the tripping point? high current? vibration?

try check the OL setting, also what is the driven by the gearbox? conveyor? or else?

regards,

Hi Bijoy,

What is motor capacity? What driven by gearbox ? and also what tripping point ? high vibration or high current?

What power line frequency is 60Hz or 50Hz?

Dear Rotating guy and Mateso  Lugodisha ,

Motor capacity : 55 kw

Tripping Point and high Current : 70 amps

High Vibration : 4.5 mm/sec

Air Fin cooling fan driven by gearbox.

Motor Volt : 440

I agree with the others as they are asking to specify what signal caused the motor to activate the shutdown. Did the motor trip on high vibration or overload or something else?

If I correctly understood your posts, the trip took place on electrical protection when the motor current activated the overload trip relay. This is odd if an identical sister machine runs at the same current but it does not trip.

Can you confirm my understanding ?

Regards- Ali M. Al-Shurafa 

Bijoy,

Try to replace the thermal overload relay.

regards,

Finally we found the problem for Motor Tripping issue ......

Rated AMPS = 88

Before tripping rely  was  80 AMPS after that rely set 80 to 88 AMPS.

 Now equipment healthy condition and running smoothly . 

Thank you for the update.