DE1540113A1 - Arrangement to reduce losses in the vicinity of alternating current bushings - Google Patents

Description

Arrangement for shifting losses . in the vicinity of alternating current leadthroughs The invention relates to an arrangement for reducing losses which arise in metal parts consisting of the mapietic plus and / or electrical current well-conducting metal parts in the vicinity of alternating current leadthroughs, especially in transformers, dro.:iselepulen and dergle. They express themselves in a warming of the material as a result of eddy currents and / or hysteresis. As a result, power is undesirably consumed, e.g. B. can take considerable values in large electrical machines.

Such a power consumption can either be avoided entirely. or narrow it down by the fact that at the point of passage around the part in which additional losses arise a closed conductor loop is arranged. This conductor loop represents a tranatormatory coupling. The part of the conductor loop lying parallel to the lead-through conductor is expediently laid around as a sleeve around the lead-through. If the conductor loop is made of the same material as the lead-through conductor and has at least the same cross-section, the current in the conductor loop will be almost the same as the current in the through conductor. The JL magnetic field caused by the arrangement counteracts that which generates additional losses, so that both are largely eliminated. Various embodiments of the invention show the figures of the drawing. 1 with a implementation eats bezeichnetu in Eiaenbauteilen 2 an alternating flux d-herverrufts which Urnache the ZusatAverluste is. The Leitersehleife 3 "preferably with the same or larger cross-section, such as 1, is either guided around the mechanical member 2 and with which the Dir # behführung parallels conductor portion 4 is connected, see? Lg. 1, or, as shown in Pig. 2 and 3 angedeutetg in Palle two- and three-pole DurchtUhrungonv'Uber the conductor pieces made 4a and 4b *. Die'Leiterstücke 4 eind drawn here as sleeves and are the Murchführungeleiterng by appropriate isolation of separate serve directly to. J2 are the currents in the leiterschleiten = rklert, which induce the compensating magnetization.

Claims (2)

P aten tana ip r U o h e 1. Arrangement for the reduction of losses # that arise in metal parts consisting of the maanetiochen flux and / or electric current well-conducting materials in the vicinity of alternating electricity feedthroughs, especially with transformer choke coils and the like. characterized in that at the point of implementation around the part in which additional losses arise, a disconnected conductor loop is arranged. 2. Arrangement according to claim le characterized in that the closed conductor loop consists of a conductor piece which at the point of the implementation parallel to the through.- , guide conductor directly rests against but is electrically isolated from you # and a further conductor piece consists of the latter at both ends is connected to the parallel conductor piece, but is otherwise arranged around daajenige part in which additional losses arise. 3. Arrangement according to claim 1, characterized in that the conductor piece lying parallel to the bushing conductor rests in the manner of a sleeve around the bushing conductor. 4. Arrangement according to claim 1-39 characterized in that for multi-phase bushings each carrying out a parallel-fitting the Durchführungeleiter conductor portion, and in that the parallel conductor pieces are conductively connected to each other one on each side of the bushing liegende.Enden. 5. Arrangement according to claim 1-4, characterized gEkennzelchnetp that the cross section either the same or elien larger value than having the through-conductor.