Vanguard Instruments ATRT-03 - 16 Running a Special Transformer Test

Model ATRT-03 (v) Operating Instruction
47
16.0 Running a Special Transformer Test
Table 16-1 shows the steps to test a Dy11 transformer.
Table 16-1. Three-Phase Transformer Test Procedure Steps
STEP DESCRIPTION DISPLAY ACTION
1 Initiate Transformer Test
1.TEST XFMR 04/12/00
2.SETUP 13:06:00
3.CALCULATOR
4.DIAGNOSTIC
Press key 1
2 Select Special Transformer Test
XFMR CONFIGURATION
1.SNGL PHS 2.dT-Y
3.Y-dT 4.dT-dT
5.Y-Y 6.SP TEST
Press key 6
3 Scroll to the Special Test #8
(Note 1)
1.ENTER SP TEST NUM
2.SCROLL TO SELECT
Press key 2
4 Scroll to Test #8 (Dy11)
SPECIAL TEST LISTING
“UP” TO SCROLL FWD
“DWN” TO SCROLL RVS
Use “UP” key
5 Confirm Special Test
ST #8 Dy11 XMFR
“ENTER” TO USE TEST
Press ENTER
6 Do not use nameplate voltage
XFMR NAME PLATE VLTG
1.YES
2.NO
Press key 2
7 Install jumper from H2 to H3
Before running test
Dy11 XFMR
JUMPER H3-H2
“START” to RUN TEST
Press “START”
key
8 Install jumper from H1 to H3
Before running test
JUMPER H1-H3
“START” to RUN TEST
Press “START”
key
9 Install jumper from H1 to H2
Before running test
JUMPER H2-H1
“START” to RUN TEST
Press “START”
key
10
RATIO mA %DIFF
+100.04 002
+100.06 002
+100.05 002
None
11 Go to next screen
RATIO mA %DIFF
+100.04 002
+100.06 002
+100.05 002
Press any key
12 Print test result with the built-in
printer
PRINT TEST RESULTS?
1.YES
2.NO
Press key 1
13 Select print format
PRINT FORMAT
1.COLUMN
2.DETAILED
Select Column
format print report
Press key 1