Vanguard TRM-20_40 User Manual

Page 55

REV 1 TRM-20 AND TRM-40 USER’S MANUAL

3.12 Performing a Dynamic LTC Test

The Dynamic LTC Test is used to conduct a resistance test while the LTC or Voltage Regulator is
switching taps. The test will run for 240 seconds to allow the LTC or Voltage Regulator enough
time to switch through all of the taps during the test. The resistance data is recorded
continuously during the test period. Use the following steps to perform a Dynamic LTC Test.

NOTE

Dynamic LTC Test results can only be saved to an external USB Flash drive. If you
would like to save your test results, please be sure to connect a USB Flash drive to
the unit before performing this test.

a. Start from the “START-UP” menu:

Press the

[1]

key (RUN TEST).

b. The following screen will be displayed:

Press the

[3]

key (DYNAMIC LTC TEST).

c. The following screen will be displayed:

This warning reminds the operator that the next sequence of test steps will run current
through the test load. Press any key to continue.

***** WARNING! *****

DANGEROUS FLASH-OVER
WILL OCCUR IF CABLES
ARE DISCONNECTED!
********************

1. RESISTANCE TEST
2. SPECIAL RES TEST
3. DYNAMIC LTC TEST
4. DEGAUSS WINDING

1. RUN TEST
2. SETUP
3. USER DIAGNOSTICS

11/07/11

08:49:15

°C 72°F