The instrument for measuring DC current transformer delta delta connection of DC resistance measurement A B line resistance and the other two edges have direct current?
Yes, because the delta connection method to form a loop, and the other two edges must be current, if the two sides no current, you can not be measured resistance, also shows that the transformer fault
Either the transformer is connected with other problems, test of transformer, such as air, load characteristics, voltage ratio etc. to analyze and judge. Either your test instrument is out of order. It is not related to the core structure and the magnetic conductive material.
According to reason, the coil direct resistance measurement time and charging time is proportional to, charging time should be related to coil capacitance, a transformer of the three coil basic difference is not big, you say the phenomenon is not very clear expression
