Vanguard VCBA ver.10.xx - Manual (Page 50)

REV 2 VCBA VERSION 10.xx SOFTWARE MANUAL
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4.12.2. Toggling the Resistor Flag
When performing a timing test on a circuit breaker with an insertion resistor, it’s important to
select the correct resistance value at the time the test is performed (please see section 6.0 for
information on how to perform timing tests). If this value is not entered for some reason,
incorrect test results may be obtained. However, this can be corrected using the VCBA
software. To set the resistor value for a test record:
1. Retrieve the test record that you would like to view (See sections 4.2 and 4.3).
2. From the File menu, click on Diagnostics and then select Toggle Resistor Flag. The
following window will be displayed:
3. Select the insertion resistor value and click on the “OK” button. The VCBA software will
calculate the main contact time and the resistor contact time based on the resistance
value provided. The tabulated test results will be updated with the correct calculated
values.
NOTES
To permanently apply the changes, be sure to save the test record after
toggling the resistor flag. Please see section 4.4 for further information on
how to save test records.