Instruction Manual

ATRT-01/01B S3 USER’S MANUAL REV 1

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