Megger TTR310 - Quick Test Result Screens (Figure 6-3 and Figure 6-4); Figure 6-3. Initial Quick Test Result Screen

OPERATION
AVTMTTR310 Rev 8 May 2016
71
Quick Test Result Screens (Figure 6-3 and Figure 6-4)
If 3 (START TEST) is selected on the QUICK TEST SETUP menu, Figure 6-2,
the initial quick test result screen shown in Figure 6-3 appears. This screen is
displayed during testing of a transformer.
THREE PHASE TRANSFORMER TEST
TEST: nnn ID:A13579CV0246 DIAG NN Ddnnn
TEST VOLTAGE: 80V
A B C
RATIO
PHASE (min)
Iexc (mA)
TEST IN PROGRESS
PRESS EMERGENCY TEST OFF BUTTON
TO STOP TEST
Figure 6-3. Initial Quick Test Result Screen
The TEST IN PROGRESS message indicates that the TTR310 test set is
performing a test. The test may be interrupted by pressing the EMERGENCY
TEST OFF button, located on the front panel. When pressed, the
EMERGENCY TEST OFF switch is locked in the off position. To reset the
switch, twist the button in the direction indicated by the arrows. When the test is
completed, the final quick test result screen shown in Figure 6-4 appears.
If abnormal operating conditions occur during testing phase B or C of a three-
phase transformer, an error message (refer to Error Messages section) will appear
on the bottom of the screen followed by the message “PRESS ANY KEY TO
CONTINUE.” In this case, if any key is pressed, the following message will
appear on the bottom of the screen:
“Select 1 – REPEAT TEST 2 – CONTINUE 3 – ABORT TEST”
If REPEAT TEST is selected, the test set will re-test phase B or C.
If CONTINUE is selected, the test set will start testing of phase C (if an error
message appeared during phase B testing).
If ABORT TEST is selected, the Main Menu screen will appear. If one of these
error messages appears, verify the abnormal condition by taking a repeat
measurement before attempting to take any corrective action. If an error message
appears during phase A testing, and repeat measurement is still bad, it is
impossible to continue testing of the transformer, and troubleshooting procedure
should be started by testing each phase of the three-phase transformer separately
as a single phase transformer.