Abstract: An electric vehicle control device includes a first inverter controlling a first group defined by induction motors, and a second inverter controlling a second group defined by induction motors. The first inverter and the induction motors of the first group are connected to each other by a first conductor. The second inverter and the induction motors of the second group are connected by a second conductor. A first length is equal to or less than three times the average value of a second length and a third length. The first length is an inter-center distance between the first conductor and the second conductor, the second length is the maximum length of a conductor portion of the first conductor in the cross section of the first conductor, and the third length is the maximum length of a conductor portion of the second conductor in the cross section of the second conductor.

Abstract: A cryogenic vessel for a superconducting apparatus has an inner vessel which houses a freezing mixture and a winding of a superconducting apparatus. The inner vessel is surrounded by a vacuum insulating vessel which thermally insulates the inner vessel. A connecting pipe connects the inside of the inner vessel with the outside of the vacuum insulating vessel. A cylindrical dividing pipe which surrounds the connecting pipe with a radial clearance therebetween extends into the inner vessel and is connected between the inner end of the connecting pipe and the inner vessel. A gas flow passageway is formed between the inner end and the outer end of the connecting pipe, the passageway bordering on the inner or outer surface of the connecting pipe.