User guide

Model ATRT-01 (v) Operating Instructions

Rev 02

May 02, 2002

25.0 Step-by-Step Turns Ratio Testing Procedures

25-1 Single-Phase Transformer Test Procedure

Table 25.1 shows the steps to test a single-phase transformer.

Table 25-1. Single-Phase Transformer Test Procedure.

STEP DESCRIPTION DISPLAY ACTION

1 Initiate Transformer Test

1. TEST XFMR 04/12/00

2. SETUP 13:06:02

3. CALCULATOR

Press key 1

2 Select Single Phase

Transformer

XFMR CONFIGURATION:

1. SNGL PHS 2. dT-Y

3. Y-dT 4.dT-dT

5. Y-Y

Press key 1.

3 Select not to use

transformer name plate

voltage

XFMR NAME PLATE VLTG

1. YES

2. NO

Press key 2.

4 Start test

SINGLE PHASE XFMR

“START” TO RUN TEST

“STOP” TO ABORT

Press START key

5 Display ratio, excitation

current

RATIO mA %DIFF

+1.000 0002

None