Doble
TRF-250
The TRF-250 determines the turns ratio of the transformer under test using the IEEE C57.12.90 measurement method. The turns-ratio range is from 0.8 to 50,000 to 1. Transformer turns ratio, excitation current, and winding polarity are displayed on the built-in 128 x 64 pixels graphic LCD screen.
Details
Highly-accurate turns ratio readings, ease of operation, and reliability
The TRF-250 is Vanguard’s fourth generation transformer turns ratio tester. This latest design provides a higher turns-ratio test voltage of 250Vac, provides a wireless Bluetooth PC interface, and features a 44-key “QWERTY”-style membrane keyboard. All these features greatly improve the accuracy of the turns ratio readings, ease of operation, and reliability.
The TRF-250 determines the turns ratio of the transformer under test using the IEEE C57.12.90 measurement method. The turns-ratio range is from 0.8 to 50,000 to 1. Transformer turns ratio, excitation current, and winding polarity are displayed on the built-in 128 x 64 pixels graphic LCD screen. The TRF-250 can be used as a standalone unit or can be computer-controlled.
Ratio Range: 0.8 – 50,000 to 1
Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
4 test voltages: 4Vac, 40Vac, 100Vac, and 250Vac
Phase angle and excitation current measurement
Bluetooth and USB PC interfaces
4.5-inch wide thermal printer (optional)
Documents
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