Vanguard LTCA-10, LTCA-40, WRM-10P, WRM-40 - Manual (Page 66)

LTCA VERSION 2.xx SOFTWARE MANUAL REV 3
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5.3 Running a Dynamic Resistance Test (LTCA-10 and LTCA-40 Only)
The Dynamic Resistance Test is used to conduct a resistance test while the LTC or Regulator is
switching taps. The test time can be selected for a period from 15 to 240 seconds to allow the
LTC or Regulator enough time to switch through all of its taps during the test. The resistance
data is recorded continuously during the test period. The AC current probe can be clamped
around one of the motor leads to monitor the motor current during the test. Follow the steps
below to perform a Dynamic Resistance Test:
1. Make sure the LTCA-10 or LTCA-40 is properly connected to the PC. Also ensure that the
LTCA software is properly configured to use the selected interface and port (RS-232C or
USB).
2. Make all necessary cable connections per the LTCA User’s Manual.
3. Click on the Run icon.
4. The following window will be displayed:
Select the “Dynamic Resistance Test” option and click on the “OK” button.