Mechanical Anomalies; Environmental Information; Package; Product - WEG GPW Series Installation, Operation And Maintenance Manual

www.weg.net
CAUSE
Speed droop of the drive machine
Voltage regulator no adjusted
Diodes defectives
Field winding defective

9.2 MECHANICAL ANOMALIES

CAUSE
Bearing defective
Excess or lack of lubrication in the bearing
Incorrect lubricant
Excessive axial clearance
CAUSE
Air input or output partially blocked
Hot air is returning to the alternator
Overload on the alternator
Over excitation.
Radiator with incorrect temperature, flow or pressure
CAUSE
Misalignment
Assembly defect
Excessive clearance in the coupling
ATTENTION
The machines included in this manual are in continuous improvement, so the information in this manual is
subject to change without previous notice.

9.3 ENVIRONMENTAL INFORMATION

9.3.1

Package

The alternators are supplied in cardboard, polymer, wood
or metal packages. Those materials are recyclable or
reusable and must be properly disposed according to the
current regulations of each country. All wood used in the
packaging of WEG alternators comes from reforestation
and receives anti-fungal treatment.
36 l Installation, operation and maintenance manual
LARGE VOLTAGE DROP WHEN SUBJECT TO LOAD

Observe the speed comportment of the driving machine

Check the PID gain adjust of the voltage regulator

Check the actuation of the voltage regulator limiters

Check the diodes and replace them, if necessary

Check the field winding
OVERHEATING OF THE BEARING

Replace the bearing

Check the lubrication of the bearing

Use the lubricant according to bearing nameplate

Correct the axial clearance
OVERHEATING ON ALTERNATOR WINDINGS

Clear the air passages

Direct the hot air out of the alternator installation environment

Check the load and adjust the rated data of the alternator

Check the alternator excitation current and compare with the rated
data. Correct it (if necessary).

Check and adjust the water characteristics of the radiator
EXCESSIVE VIBRATION

Adjust the alignment of the alternator with the driving machine

Check for assembly problems of the alternator and correct them
(feet fixation, coupling, flange, etc.)

Correct the clearance in the coupling
CORRECTIVE PROCEDURE
CORRECTIVE PROCEDURE
CORRECTIVE PROCEDURE
CORRECTIVE PROCEDURE
9.3.2

Product

The alternators, under the constructive aspect, are
manufactured primarily with ferrous metals (steel, cast
iron), nonferrous metals (copper, aluminum) and plastic.
The electric alternator, in general, is a product that has a
long service life; however, when it must be disposed,
WEG recommends that the materials of the packaging
and of the product be properly separated and sent for
recycling.
The non-recyclable materials must be properly disposed
according to the environmental regulations, i.e., in
industrial landfill, co-processed in cement kilns or
incinerated. The service providers of recycling, disposal in
industrial landfills, co-processing or incineration of waste
must be properly licensed by the environmental agency
of each state to carry out these activities.