Reactor and power conversion apparatus using the same

PROBLEM TO BE SOLVED: To provide a reactor capable of equalizing inductance of phases, and to provide a power conversion device using the reactor.SOLUTION: A reactor 100 comprises: a magnetic core 6; and lead wires 14, 15, and 16 wound around the magnetic core. The magnetic core 6 has loop portions for AC three-phases. Each loop portion has a window 7, 8 or 9 at the center thereof so as to form a closed magnetic circuit. The loop portions for the AC three-phases are unified via a connecting portion 13, and arranged so as to extend in different directions from each other with respect to the connecting portion. Each lead wire is wound around each loop portion through the window. The reactor 100 is connected between a three-phase AC output of an inverter which supplies three-phase AC power to a three-phase AC motor and a three-phase AC terminal of the three-phase AC motor, so as to lower noise generated by a power conversion device.