The LTCA-10TM accurately measures winding resistance of highly inductive power transformers Triple resistance-reading channels allow the measurement of three winding resistances simultaneously. Four-wire (Kelvin) connections provide high accuracy and require no lead compensation. A special feature of this device is its ability to measure and graph the resistance trace of a transformer LTC during operation. One resistance input channel is dedicated for this feature. Using a 60Vdc power supply is capable of outputting 10 amperes. The LTCA-10TM provides fast and stable readings of large transformers.