Vanguard EZCT-S2 User Manual
Page 19
REV 3 EZCT S2 USER’S MANUAL
15
e. If the selected test included an excitation test, the following screen will be displayed:
Select the test voltage range by pressing the corresponding key (
[1]
-
[4]
).
f. If the selected test included an excitation test, the following screen will be displayed:
Select the maximum test current for the excitation test by pressing the corresponding
key (
[1]
-
[6]
).
NOTE
Most CT’s will saturate before the excitation current reaches 1A. To reduce
stress on CT’s, a maximum test current of 1A is recommended.
g. If the selected test included a ratio test, the following screen will be displayed:
1. YES
Press the
[1]
key if you would like to enter the CT nameplate values. The
following screen will be displayed:
Type the first number using the keypad.
You can press the
[CLEAR]
key to restart a field entry if necessary.
Press the
[ENTER]
key. The following screen will be displayed:
Type the second number using the keypad. The screen will be updated as shown:
SELECT VOLTAGE RANGE
1. 50V 2. 250V
3. 500V 4. 1500V
ENTER PLATE RATIO:
80 : 0.0
ENTER PLATE RATIO:
0 :
XFMR NAME PLATE RAT.
1. YES
2. NO
SET TEST CURRENT:
1. 0.2A 2. 0.5A
3. 1A 4. 2A
5. 5A 6. 10A