Abstract: The present disclosure relates to a stator for a rotating electric machine. A plurality of electrically-connected parts is formed on one side surface of a stator core to electrically connect a plurality of hairpins. Among portions of two electrically-connected parts adjacent to each other in a circumferential direction of the stator core, portions located at the same distance from the one side surface of the stator core have shortest distances therebetween, which are set to have difference values included in a preset range value. This may result in preventing a generation of a vulnerable portion at which two adjacent electrically-connected parts are excessively adjacent to each other in the circumferential direction of the stator core.

Abstract: A stator for an electric motor according to the present disclosure includes a stator core having a plurality of slots and teeth, and a stator coil wound via the plurality of slots, wherein the stator coil includes a plurality of hairpins inserted into the plurality of slots and connected in series with one another, wherein the plurality of hairpins is spaced apart from one another by a partial discharge suppression distance to suppress partial discharge between adjacent hairpins, wherein a partial discharge suppression distance between hairpins with a high voltage distribution ratio is farther than a partial discharge suppression distance between hairpins with a low voltage distribution ratio when power is applied to the stator coil. This may result in suppressing reduction of lifespan of the stator coil due to the partial discharge of the hairpins.

Abstract: A stator for an electric motor according to the present disclosure includes a stator core having a plurality of slots and teeth, and a stator coil wound via the plurality of slots, wherein the stator coil includes a plurality of hairpins inserted into the plurality of slots and connected in series with one another, wherein the plurality of hairpins is spaced apart from one another by a partial discharge suppression distance to suppress partial discharge between adjacent hairpins, wherein a partial discharge suppression distance between hairpins with a high voltage distribution ratio is farther than a partial discharge suppression distance between hairpins with a low voltage distribution ratio when power is applied to the stator coil. This may result in suppressing reduction of lifespan of the stator coil due to the partial discharge of the hairpins.

Abstract: The stator of the rotating electric machine according to an embodiment of the present invention, the stator comprising: a stator coil formed by electrically connecting a plurality of hairpins in a preset pattern. Each of the plurality of hairpins includes a conductor and an insulating coating film covering the conductor. Each of the plurality of hairpins comprises: a first protruding part having a first stripped portion formed on one side by removing the insulating coating film and a second protruding part protruding from the stator core, and connected to the first stripped portion. A second stripped portion is formed on the second protruding part. An electrically-connected part is formed by electrically coupling the first stripped portion and the second stripped portion.

Abstract: A method for recognizing whether a radiation worker normally wears a personal radiation dosimeter, recognizing a radiation dose and work behavior at a specific time point by integrally analyzing radiation measurement data of a personal radiation dosimeter and motion data of a radiation worker, and helping improvement of work behavior of a radiation worker and improvement of radioactive danger recognition on the basis of such data.