User Manual

REV 5 TTRA VERSION 12.x SOFTWARE MANUAL
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1.0 INTRODUCTION
The Transformer Turns Ratio Analyzer (TTRA) software is a Windows-based PC software
application for use with Vanguard’s ATRT-03 line of three-phase transformer turns-ratio testers
(ATRT-03, ATRT-03A, and ATRT-03B). This software allows users to perform the following tasks:
• Test winding turns-ratios of transformers, voltage regulators, and load-tap changers
directly from a PC.
• Create test plans for transformers, voltage regulators, and load-tap changers.
o The test plan can be created on the PC and then transferred to the ATRT.
o A test plan can be used to quickly test transformers and obtain test results,
percentage-error calculation, and Pass/Fail results.
• Export test records in Microsoft Excel format.
• Retrieve test records stored in an ATRT.
1.1 System Requirements
The TTRA software has the following minimum system requirements:
• PC running Microsoft® Windows® XP or Windows® Vista
• 2 Megabytes of hard drive space
• CD-ROM or DVD-ROM drive
• RS-232C (serial) port