Vanguard ATRT-01_01B_01D - Manual (Page 26)

Model ATRT-01 (v) Operating Instructions
Rev 02
May 02, 2002
25
25-2 Single-Phase Transformer Test Procedure using nameplate voltages
Table 25.2 shows the steps to test a single-phase transformer with transformer name plate
voltages.
Table 25-2. Single-Phase Transformer Test (with name plate voltages) Procedure.
STEP DESCRIPTION DISPLAY ACTION
1 Initiate Transformer Test 1. TEST XFMR 04/12/00
2. SETUP 13:06:00
3. CALCULATOR Press key 1
2 Select Single Phase
Transformer XFMR CONFIGURATION
1. SNGL PHS 2. dT-Y
3. Y-dT 4.dT-dT
5. Y-Y Press key 1.
3 Select to use transformer
name plate voltage XFMR NAME PLATE VLTG
1. YES
2. NO Press key 1.
4 Enter H line voltage ENTER H WINDING
NAME-PLATE VOLTAGE
V Use keys 0-9
5 Confirm H line voltage ENTER H WINDING
NAME-PLATE VOLTAGE
7200 V Press ENTER
6 Enter X line voltage ENTER X WINDING
NAME-PLATE VOLTAGE
V Use keys 0-9
7 Confirm X voltage ENTER X WINDING
NAME-PLATE VOLTAGE
480 V Press ENTER
8 Start Test SINGLE PHASE XFMR
“START” TO RUN TEST
OR
“STOP” TO ABORT Press START
9 Display ratio, excitation
current, and percentage
error. RATIO mA %DIFF
+15.003 01.00 0.02 None