Vanguard

Vanguard ATRT-03 S2 TTR Three Phase Transformer Turns Ratio Tester

The Vanguard ATRT-03 S2 Three Phase TTR is a thorough testing device that provides precise analysis on a transformer turns ratio, which makes this three-phase transformer incredibly useful. This microprocessor-based, automatic device provides users with PC software, cables, external data storage (999 test records), and internal storage (112 test records). Measuring turns-ratios from 0.8 to 15000, this third-generation unit allows technicians to test accurately and efficiently.

The ATRT-03 S2 determines the transformer turns-ratio (TTR) using the IEEE C57.12.90 measurement method. The ATRT-03 S2 outputs an excitation test voltage to the transformer’s primary windings. The induced secondary voltage is sensed, and the transformer turns-ratio is calculated. The TTR, excitation current, and phase-angle readings are displayed on the large backlit LCD screen. The built-in transformer type detection feature allows the ATRT-03 S2 to detect and test 130 transformer types defined by ANSI, CEI/IEC, and Australian standards.

The Vanguard ATRT-03 S2 can be used as a stand-alone unit or can be computer-controlled. It can be operated locally using its alpha-numeric keypad and rotary switch. Test reports can be printed in the field on the unit’s built-in 4.5-inch wide thermal printer. The Vanguard ATRT-03 S2 Three Phase TTR is durable, portable, and lightweight.