Mitsubishi Electric Corporation

Kenichi Mino

Ryuichi Nishiura

Takahiko Ishikura

Kazuaki Aono

Toshiki Idemaru

A stationary induction apparatus includes a winding formed of a plurality of winding layers disposed in a central axis direction, an insulating barrier and an insulating oil. The insulating barrier includes a first extension extending radially outwardly of the winding and partitioning the outer peripheral ends, a second extension bent from an end of the first extension, extending toward one side in the central axis direction, and covering at least a part of one outer peripheral end of the outer peripheral ends, a third extension bent from an end of the second extension and extending radially outwardly of the winding, and a fourth extension bent from an end of the third extension, extending toward the other side in the central axis direction, and covering at least a part of the other outer peripheral end of the outer peripheral ends. The fourth extension faces the second extension with a spacing therebetween.

Stationary induction apparatus

An impulse voltage generating device includes: an insulation cylinder; a DC power source positioned outside the insulation cylinder; capacitors arranged successively and connected to the DC power source in parallel, the capacitors being provided in a plurality of stages, the capacitors being accommodated in metal containers positioned outside the insulation cylinder; a discharging gap switch positioned in the insulation cylinder and provided between the stages; a blower structure configured to cause an insulation gas to flow in the insulation cylinder; a bushing for each of the capacitors, the bushing being positioned outside the insulation cylinder; and a gas spraying structure positioned outside the insulation cylinder, the gas spraying structure being configured to spray the insulation gas to the bushing.

Growing community of inventors

Tokyo, Japan

Kenichi Mino