Studies on performance parameters of a practical transformer for various utilizations

Abstract

This work has been conducted at the electrical machines lab in European University of Bangladesh (EUB) for both the experimental and analytical determination of the performance parameters of the transformer for practical utilization. No-load and short-circuit tests were done for calculating the various performances parameters, such as core loss(Hysteresis loss and Eddy current loss), winding copper loss (I2R loss), no load current (Io),active component of no load current (Iw),magnetizing component of no load current (Iµ), no load resistance (Ro), no load reactance (Xo), equivalent resistance referred to primary (R01), reactance referred to primary (X01) and impedance referred to primary (Z01) and efficiency (η) of the practical transformer. Insulation resistance test was done to check the insulation level, which can identify the presence of major faults. The vector group tests also performed to identify the group numbers for various connection facilities of practical transformer. The subject under consideration was a 1.5 kVA small size, dry type practical transformer. This type of research work like 1.5 kVA practical transformer is not yet done before anywhere. This study will be the guide line for practical utilization of transformer for different purposes.