GE I-M1010 Manual de instalación descargar pdf (Pagina 13)

GEI M1010-A

VI. OPERATIONAL DIFFICULTIES

Some operating difficulties may occur. Common causes are given in Table 2 and should be corrected as soon as possible.

TROUBLESHOOTING CHART

Table 2

Affected Parts

Difficulty

What to Check

Windings Overheating

Calibration of measuring instrument

Excessive Current

Unbalanced AC current

Improper or restricted ventilation

Excessive ambient temperature

Short circuited coil or windings

Dirty windings

Unbalanced voltage

Bearings Overheating

Calibration of measuring instrument

Misalignment

Excessive end thrust or radial loading

Shaft currents

Excessive or insufficient grease

Worn out or dirty grease

Motor Excessive Vibration

Unbalance

Misalignment

System Reed Critical frequency too close to the motor

operating speed

Improper or settled foundation

Non-uniform air gap

Rubbing parts

Bent shaft

Unbalanced stator current

Damaged bearing

Winding Insulation

Low insulation resistance

or insulation failure

Moisture, dirt, metal particles, oil, or other contaminants on the

windings

Wrong voltage

Excessive temperature

Voltage surges

Mechanical damage

Excessive vibration with resultant mechanical damage

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GE I-M1010 Manual de instalación Pagina 13

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