0 dyn1 transformer test procedure (continued) – Vanguard Tri-Phase User Manual
Page 51

TRI-PHASE OPERATING™ INSTRUCTIONS
51
14.0 Dyn1 Transformer Test Procedure (continued)
Table 6.0 Dyn1 Transformer Test Procedure (continued)
STEP DESCRIPTION
DISPLAY
ACTION
10
“Test in Progress Status
Display”
TEST IN PROGRESS
PLEASE WAIT…
None
11
“Test Results Status Display”
Observe ratio, excitation
current, and percentage error
on LCD display
RATIO
mA
%DIFF
A 57.757 2.3 0.11
B 57.754 2.4 0.11
C 57.741 3.4 0.08
XFMR TYPE: Dyn1
None Three-phase
test turns-ratio results
are shown first.
12
“Test Results Status Display”
Observe ratio, excitation
current, and percentage error
on LCD display
PHASE DATA
Phs A Phs B
Phs C
30.01 150.00 270.01
None Three-phase
phase angle test
results are briefly
shown next.
13
“Test Results Status Display”
Observe ratio, excitation
current, and percentage error
on LCD display
SINGLE PHASE TEST RSLT:
RATIO
mA
%DIFF
A +100.06
2.4
0.14
B +100.02
1.9
0.09
C +100.02
2.6
0.00
XFMR TYPE: Dyn1
None
Single-phase test
results are displayed
last
14
“Test Results Status Display”
Go to next LCD display
SINGLE PHASE TEST RSLT:
RATIO
mA
%DIFF
A +100.06
2.4
0.14
B +100.02
1.9
0.09
C +100.02
2.6
0.09
XFMR TYPE: Dyn1
Observe test results
Press any key or push
down Control Knob
15
Select “YES” from the “Print
Test Results Menu” to print
test result on built-in printer
PRINT TEST RESULTS?
1.YES
.
2.NO
Press key number 1
or push down
Control Knob
16
“Print Format Menu”
Select either print format
PRINT FORMAT
1.COLUMN
.
2.DETAILED
Press key number 1
or key number 2.
Selection of 1 or 2
may be made by
turning the Control
Knob. Push down
Control Knob after
selection is made
17
Select “YES” from the “Keep
This Reading Menu” to store
current test reading in non-
volatile memory
NOTE:
Refer to note at end of table
KEEP THIS READING?
1.YES
.
2.NO
Press key number 1
or push down
Control Knob
18
“Test Saved Status Display”
Current test reading is saved
TEST SAVED
Press any key or push
down Control Knob