For measuring winding resistance of highly inductive power transformers consider the Vanguard LTCA-40 Load Tap Changer Analyzer.
Triple resistance-reading channels allow the Vanguard LTCA-40 Load Tap Changer Analyzer to measure three winding resistances simultaneously. Four-wire (Kelvin) connections provide high accuracy and require no lead compensation. A special feature of the Vanguard LTCA-40 is its ability to measure and graph the resistance trace of a transformer LTC during operation. Using a 60Vdc power supply, the Vanguard LTCA-40 is capable of outputting 40 amperes.READ MORE >>