The Vanguard Instruments ATRT-03 is a portable, automatic, three-phase transformer turns-ratio tester. It is designed for testing transformers at utility power substations.
The ATRT-03 determines the transformer turns ratio using the IEEE C57.12.90 measurement method. The ATRT-03 outputs an excitation test voltage to the transformer primary windings. The induced secondary voltage is sensed and the transformer turns ratio is calculated. The ATRT-03 is capable of measuring turns ratios from 0.8 to 15,000.
Benefits:
Testing:
Resources:
Benefits:
- Portable and lightweight
- Easy to use
- Accurate results
- Versatile
- Reliable
Testing:
- Automatic phase detection
- Three test voltages available: 8Vac, 40Vac, and 100Vac
- Phase angle and excitation current measuring
- Computer interface (RS-232C and USB Port)
- USB flash drive interface
- Name-plate turns ratio calculation
- Computed % error based on measured and calculated ratio
- Optional 4.5″ thermal printer
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