| 摘要 |
To strips of dielectric material there are applied metallized layers of which the thickness in each zone may be varied as a function of the distance of this zone from the edges of the strips. The metallized strips are wound up to form at least one coil and contact electrodes are applied to the end faces of the coils and which are cup coupled to connection terminals. To the insulating strips there are applied metallized layers of which the median thickness is decreased towards either side to leave a median zone of metallization of normal thickness located at a specified distance from the edges of the insulating strips. A thermal circuit-breaker is inserted on the axis of each coil in the vicinity of the zone of greater thickness. This termal circuit-breaker is coupled in series with a connection wire of each of the coils. |
