Vanguard TRM-203_403 User Manual
Page 30
TRM-203 AND TRM-403 USER’S MANUAL
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For this example, press the
[1]
key for a Delta type transformer.
e. The following menu will be displayed:
Select the test current by pressing the corresponding numeric key on the keypad. Press
the
[6]
key (CUSTOM) if you would like to enter a custom test current and then enter
the current (between 1A-40A) on the next screen.
f. The following screen will be displayed:
1. YES
Press the
[1]
key (YES) if you wish to convert readings to standard temperature. The
following screen will be displayed:
Press the
[1]
key (COPPER, Tk=234.5) to select copper as the winding material.
Continue to step g.
Press the
[2]
key (ALUMINUM, Tk=225.0) to select aluminum as the winding
material. Continue to step g.
Press the
[3]
key (MANUALLY ENTER Tk) to manually enter the Tk value. The
following screen will be displayed:
WINDING MATERIAL:
1.
COPPER, TK=234.5
2.
ALUMINUM, TK=225.0
3.
MANUALLY ENTER TK
CONVERT READINGS TO
STANDARD TEMP?
1.
YES
2.
NO
SELECT TEST CURRENT:
1.
1A
2.
5A
3.
10A
4.
20A
5.
40A
6.
CUSTOM