Tag Archives: motor listrik

Kerusakan Motor Listrik.

menurut survey EPRI dan IEEE. kerusakan motor dibagi dalam beberapa kategori sebab :
* Bearing ( 40 – 50%)
* Stator (25 – 35%)
* Rotor (<10%)
* Lain2 (kopling, seal )
Sebab karena Kondisi abnormal operasi al:
* Undervoltage
* Overvoltage
* Underpower element
* Power factor element
* Frequensi element
sebab karena Mechanical – Bearing
* Lubrikasi (grade, kontaminasi, kesediaannya)
* Mekanikal (excessive radial loading, axial loading)
* Rough surfaces ( fatigue, cracks, shaft currents)
* Vibrasi (unbalance arus phase, mechanical unbalance)