User guide

REV 2 ATRT-03 S2, ATRT-03A S2, AND ATRT-03B S2 USER’S MANUAL

3.4.4. Testing a Three Phase Transformer Using Auto Detect Mode

The ATRT-03 S2 provides a convenient Auto Detect mode that can automatically detect 130

specific vector groups for different transformer types defined by ANSI, CEI/IEC, and Australian

standards. The transformer configurations supported are listed in Appendix A. The ATRT-03 S2

can detect the vector diagrams for Delta-Delta, Wye-Wye, Delta-Wye, and Wye-Delta

transformer types. Follow the steps below to test a three phase transformer using auto detect

mode:

a. Start from the “START-UP” menu:

Press the [1] key (RUN TEST).

b. The following screen will be displayed:

Select a supported three phase transformer type by pressing the corresponding numeric

key on the keypad (

[2], [3], [4], or [5]. For this example, we will perform a Yd test

(option 3).

c. The following screen will be displayed:

Press the

[1] key (YES).

H0 ACCESSIBLE?

1. YES

2. NO

XFMR CONFIG:

1. SINGLE PHASE

2. Dy

3. Yd

4. Dd

5. yy

6. next page

1. RUN TEST

2. SETUP

3. TEST PLANS

4. DIAGNOSTIC

TIME: 15:45:15

DATE: 07/20/10