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ATRT-03 is a three-phase, transformer
turns-ratio tester. The Model ATRT-03 is
lightweight, rugged, and portable, and is
designed for transformer testing at utility
power substations.
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Model ATRT-03/03A determines the transformer
turns ratio by accurately measuring the
voltages across the unloaded transformer
windings and then displaying the ratio of
these voltages (ratios range from 0.8 to
15,000). The ATRT-03A calibrates each
measurement to ensure the turns-ratio
accuracy.
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