1. A stationary induction device comprising: an iron core;
a winding wound around the iron core;
a tank to store the iron core and the winding, the tank being filled with refrigerant;
a pump to forcibly circulate the refrigerant; and
a bushing electrically connected to the winding, the bushing extending through the tank, wherein
the iron core includes a first iron core portion and a second iron core portion located with a space being interposed between the first iron core portion and the second iron core portion,
each of the first iron core portion and the second iron core portion has a first window portion and a second window portion through each of which the winding extends,
the first window portion of the first iron core portion and the first window portion of the second iron core portion face each other,
the second window portion of the first iron core portion and the second window portion of the second iron core portion face each other,
by driving the pump, the refrigerant is circulated by passing through the first window portion and the second window portion of each of the first iron core portion and the second iron core portion, and
the bushing is connected to the winding via the space, and is provided at a position facing a portion of the winding located in the space in the tank.
2. The stationary induction device according to claim 1, wherein the pump is disposed at a position internal to the winding in the space.