Page 78 - Condition Monitor User Manual

Configuring a Monitor

Note:
On a salient pole machine, a pole typically shows some sign of
problems when the percentage difference of the flux amplitude is
more than 1-2%.
On round rotor machines, this increases to about 3% for coils with
more than 10 turns per coil, and 5-10% for coils with less than 10 turns
per coil.

To set an Alert threshold for Flux-S:

• Press ‘Acquire Data’ to get a fresh set of data on the graph. This step is optional,
but it does allow you to see what the current measurement results are.

• Select one or more poles on the diagram.
• Enter the new Alert threshold in the text box.

• Changes can be uploaded immediately by pressing ‘Save Changes’ or later using
the ‘Upload’ button in the ribbon (see Section 7.8).

• Pressing ‘Discard Changes’ will revert the thresholds to the previously loaded
values.

• There are some additional controls to assist with pole selection, and the graph can
be re-scaled to suit the data being displayed.

Figure 7-21 Sample Flux-S Alert Settings

72
www.irispower.com