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

Page 51

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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