Wärtsilä JOVYREC D600 G120/10
150254_10_BA
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6.2 Preventive
Maintenance
The continued monitoring of the operational status of any electronic equipment is essential for assuring system
reliability. Operating personnel should be knowledgeable of all rectifier equipment and indicators. Records should
be maintained for all rectifier preventive maintenance activities. The rectifier requires periodic preventive
maintenance. The following procedures should be performed by personnel familiar with basic electronics and
electrical theory who have been trained in rectifier operations.
1.
Ensure all fans are operational and that adequate ventilation is available.
2.
Check for any unusual noises or odors.
3.
Check the operating- and display elements and verify that an alarm condition is not indicated.
4.
Inspect, if present, the fan assembly air filter and replace if necessary.
5.
The cooling ducts have to be cleaned regular.
6.
The set values for the output voltage and the monitoring facility should be checked annually.
7.
Shorted fuses should only be replaced with fuses of the same type (current value and triggering
characteristics)!
6.3 Troubleshooting
Troubleshooting is a logical, methodical process involving tests, measurements, observations, and deductive
reasoning. It proceeds from a general recognition that a failure condition exists to a specific determination of the
cause or causes of the failure and localization of the failure to one or more specific components.
Successful troubleshooting of all but the most obvious failures (e.g. blown fuses, defective fan, etc.) requires an in-
depth technical background in electronics technology. Specifically, one needs a solid education, including dc and
ac circuits, solid state devices, and digital electronics. In addition, a solid background in three phase power
systems is also necessary.
Troubleshooting requires the use of a dual trade (or two channel) oscilloscope, a digital multimeter, a phase
rotation meter and other electronic instruments. Any one lacking experience with these instruments or the above
cited technical background should NOT attempt to troubleshoot the rectifier.
