Abstract:
Trockentransformatorkern für einen Trockentransformator (34), mit einem amorphes Material (14) aufweisenden Transformatorkern (10, 32, 46), welcher auf seiner Oberfläche mindestens teilweise eine Kapselung (36) zum Schutz vor Umwelteinflüssen, wie Feuchtigkeit und Oxidation, aufweist.
Abstract:
This application concerns a magnet having a magnet body (10) as well as a method for manufacturing such a magnet. The magnet body (10) has a first region (23) with first magnetic properties and a second region (24) with second magnetic properties that are different to the first properties. Owing to the manufacturing process of the magnet body (10), the relative location of the first region (23) and the second region (24) within the magnet body (10) is freely predeterminable.
Abstract:
A circuit breaker for breaking an AC current is described, The circuit breaker comprises a pair of breaker contact members with a first breaker contact member (22, 122, 222, 422) and a second breaker contact member (24, 124, 224, 424), wherein the pair of breaker contact members is separable, whereby an arc (40) carrying an arcing current develops between the breaker contact members; an arcing contact member (32, 132, 232, 432) configured for letting an arc root of the arc (40) jump from the second breaker contact member (24, 124, 224, 424) to the arcing contact member (32, 132, 232, 432), whereby the arcing current is commuted from the second breaker contact member (24, 124, 224, 424) to the arcing contact member (32, 132, 232, 432), the commuted arcing current having a first direction; and a current- rectifying element (36, 136, 236, 436) electrically connected to the arcing contact member (32, 132, 232, 432) and configured for passing the commuted arcing current having the first direction, and for blocking a current having a second direction opposite to the first direction.
Abstract:
The invention relates to a power electronic device with an electronic device comprising a substrate (2), a metal layer (3, 4, 5) formed on the substrate (2) and a field grading means (17, 23) located along an edge (12 to 16) of the metal layer (3, 4, 5). The field grading means (17) has a non-linear electrical resistivity. The invention relates also to method to produce such a power electronic device.
Abstract:
The present invention relates to an Enclosure for power electronic components, comprising: an enclosure wall (22) comprising an insulating material, a first conductive layer (24) covering a portion of an inner face (26) of the enclosure wall (22), and a second conductive layer (28) covering at least a portion of an outer face (30) of the enclosure wall (22), wherein the first (24) and the second (28) conductive layers are electrically insulated from each other by the enclosure wall (22) and are capable of exhibiting a different electrical potential, and wherein at least a portion of the inner face (26) of the enclosure wall (22) not being covered with a conductive layer (24, 28) and abutting the portion being covered by the conductive layer (24, 28) is covered by a resistive material layer (34). Such an enclosure (20) provides an improved insulation, especially with regard to field grading.
Abstract:
A circuit breaker for breaking an AC current is described, The circuit breaker comprises a pair of breaker contact members with a first breaker contact member (22, 122, 222, 422) and a second breaker contact member (24, 124, 224, 424), wherein the pair of breaker contact members is separable, whereby an arc (40) carrying an arcing current develops between the breaker contact members; an arcing contact member (32, 132, 232, 432) configured for letting an arc root of the arc (40) jump from the second breaker contact member (24, 124, 224, 424) to the arcing contact member (32, 132, 232, 432), whereby the arcing current is commuted from the second breaker contact member (24, 124, 224, 424) to the arcing contact member (32, 132, 232, 432), the commuted arcing current having a first direction; and a current- rectifying element (36, 136, 236, 436) electrically connected to the arcing contact member (32, 132, 232, 432) and configured for passing the commuted arcing current having the first direction, and for blocking a current having a second direction opposite to the first direction.