Doble
TRF-250 A
The TRF-250A is the battery-powered version of the TRF-250. Its battery offers approximately 3 hours of continuous use. The TRF-250A features a built-in charger that allows the unit to be used while charging.
Details
The TRF-250A is the battery-powered version of the TRF-250. Its battery offers approximately 3 hours of continuous use. The TRF-250A features a built-in charger that allows the unit to be used while charging.
The TRF-250A provides a test voltage of 250Vac, 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-250A 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-250A can be used as a standalone unit or can be computer-controlled.
Battery-powered
Ratio range: 0.8 – 50,000 : 1
Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards
4 test voltages: 4Vac, 40Vac, and 100Vac, and 250 Vac
Phase angle and excitation current measurement
Bluetooth and USB PC interfaces
4.5” wide thermal printer
Documents
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