Vanguard ATRT-01_01B S3 - Manual (Page 62)

ATRT-01/01B S3 USER’S MANUAL REV 1
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3.8 Using the Turns Ratio Calculator
The ATRT-01 and ATRT-01B S2 feature a turns ratio calculator that can be used to calculate the
turns ratio for various transformer types. The user only needs to provide the H and X name
plate voltage values and the unit will calculate the turns ratio. Follow the steps below to use the
turns ratio calculator.
a. Start from the “START-UP” menu:
Press the [3] key (CALCULATOR).
b. The following screen will be displayed:
Select the transformer configuration by pressing the corresponding key on the keypad.
You can press the
[6] key (NEXT PAGE) to view additional transformer configuration
types. For this example, press the [3] key (Yd) to select the Y-dT transformer type.
NOTE
The following steps will differ for other transformer configuration types.
XFMR CONFIG:
1. SINGLE PHASE
2. DY
3. YD
4. DD
5. YY
6. NEXT PAGE
1. TEST TRANSFORMER
2. SETUP
3. CALCULATOR
time: 14:21:34
date: 05/24/11