Abstract:
An electromagnetic apparatus including a static electromagnetic device is provided. The static electromagnetic device includes a yoke and at least three limbs comprising windings for forming a magnetic core of the static electromagnetic device wherein an angle between the at least three limbs is equal and at least one of the at least three limbs or the yoke comprises a duct.
Abstract:
The present invention refers to the method for manufacturing a stacked triangular core transformer. The method is used in a production of distribution and power transformers using a stacked technology for core transformers. The method comprises a step of assembling a triangular core (1) which is comprising the following steps: a) positioning of two halves of one leg (2a) on the assembly stand on the horizontal position; b) securing the positioned halves using an upper part of adapters (16b) on the assembly stand; c) positioning of an outer clamping beam (6) underneath two leg halves (2a) at the one end of the leg halves (2a); d) assembling the yoke segment (3) at the one end of two halves (2a) of the core leg (2); e) forming a first clamp of the frame (5); f) forming a second clamp of the frame (5) at the other end of the two halves (2a) of the core leg (2) by repeating the steps "c" to "e"; g) tightening the first clamp and the second clamp together by securing means; h) rotating a single core frame (5) into vertical position and releasing securing bar (17) of the assembly stand; i) assembling two additional single core frames (5), by repeating steps "a" - "h"; j) positioning the all three single core frames (5) in abutting position, and then tightening them mechanically at the bottom and the top of the frames.
Abstract:
An RF transformer is provided. The RF transformer includes a ferrite core and a winding coil structure formed around the ferrite core. The winding coil structure is in electrical contact with a center portion of the ferrite core. The winding coil structure is essentially electrically and physically spaced from external portions of the ferrite core.
Abstract:
The invention relates to an arrangement for providing a vehicle (81) with electric energy, wherein the arrangement comprises a receiving device (85) adapted to receive the magnetic component of an alternating electromagnetic field and to produce an alternating electric current by magnetic induction, wherein the receiving device (85) comprises at least one phase line (U, V, W), each phase line (U, V, W) being adapted to carry a phase of the alternating electric current, wherein - the at least one phase line (U, V, W) is/are arranged to form a line arrangement which extends in a longitudinal direction transversely to a flux line direction, in which magnetic flux lines of the electromagnetic field penetrate the line arrangement, so that the line arrangement comprises a first end and a second end, the ends being located at opposite ends of the line arrangement in the longitudinal direction, - a width of the line arrangement, which width can be measured in a width direction extending transversely to the flux line direction and transversely to the longitudinal direction, gradually decreases along the extension of the line arrangement towards the first end and/or towards the second end.