An electrical device for connecting to a high-voltage network has a vessel, which is filled with an insulating fluid, an active part, which is arranged in the vessel and which has a magnetizable core and partial windings for producing a magnetic field in the core, and a cooling apparatus for cooling the insulating fluid. The electrical device can be operated at high temperatures. At least one barrier system is provided, which at least partly delimits encapsulated spaces, in each of which at least one partial winding is arranged, the barrier system guiding the insulating fluid cooled by the cooling apparatus across the encapsulated spaces in such a way that different encapsulated-space temperatures arise in the encapsulated spaces.

An electrical device connects to a high-voltage network and has a vessel, which is filled with an insulating fluid, an active part, which is arranged in the vessel and which has a magnetizable core and partial windings for producing a magnetic field in the core, and a cooling apparatus for cooling the insulating fluid. The electrical device is economical and at the same time can be operated at higher temperatures. This is achieved by use of at least one thermal barrier, which delimits cooling spaces, in each of which at least one partial winding is arranged. The cooling apparatus has at least two cooling units and each cooling unit being configured to cool an associated partial winding.

An electrical device connects to a high-voltage network and has a vessel, which is filled with an insulating fluid, an active part, which is arranged in the vessel and which has a magnetizable core and partial windings for producing a magnetic field in the core, and a cooling apparatus for cooling the insulating fluid. The electrical device is economical and at the same time can be operated at higher temperatures. This is achieved by use of at least one thermal barrier, which delimits cooling spaces, in each of which at least one partial winding is arranged. The cooling apparatus has at least two cooling units and each cooling unit being configured to cool an associated partial winding.

A fluid-cooled electromagnet includes an upper housing, a lower housing vertically aligned with the upper housing, a plurality of pancake coils disposed between the upper housing and the lower housing to be spaced apart from each other and sequentially stacked to have a washer shape, and at least one spacer, disposed between the upper housing and the lower housing, accommodating the pancake coils at regular intervals.

A fluid-cooled electromagnet includes an upper housing, a lower housing vertically aligned with the upper housing, a plurality of pancake coils disposed between the upper housing and the lower housing to be spaced apart from each other and sequentially stacked to have a washer shape, and at least one spacer, disposed between the upper housing and the lower housing, accommodating the pancake coils at regular intervals.

The invention relates to an electrical machine comprising a stator (1) and a rotor (2) designed to be rotated in relation to each other, said rotor (2) or said stator comprising a plurality of permanent magnets (5), at least one permanent magnet comprising at least one fluid-propagation channel (10) extending longitudinally inside the permanent magnet, the propagation channel comprising a fluid inlet and a fluid outlet, the fluid inlet being bell-mouthed and oriented in a preferential direction of rotation of the permanent magnet.

A transformer tank for a shell form transformer, for housing an active part of a three-phase transformer including transformer phases is provided. The tank includes a bottom tank part and a medium tank part comprising bottom plate and walls, a cover plate, reinforcing beams joined to the walls, interphase plates and stiffening supports for strengthening the cover plate. The interphase plates are to be arranged in a lower space of the tank, between adjacent transformer phases, extending from one wall to an opposite wall of the tank and coupled to the reinforcing beams. Each stiffening support is to be coupled to an interphase plate and extends in an upper space of the tank between the interphase plate and the cover plate, to cooperate with the cover plate. A three-phase shell form transformer and a method to assemble the transformer are also provided.

An on-load tap changer head includes: a first region for an insulating fluid of the on-load tap changer to flow; a second region separated from the first region by a wall; and a detector for detecting an increased flow speed of the insulating fluid. The detector includes: a flow flap in the first region configured to tilt from a defined flow speed of the insulating fluid from a first position to a second position; a first magnet secured to the flap such that in the second position of the flow flap, the first magnet is in an immediate vicinity of the wall; a second magnet in the second region in the immediate vicinity of the wall; and a switch in the second region that is operationally coupled to the second magnet such that tilting over of the flow flap from the first position to the second position actuates the switch.

An on-load tap changer head includes: a first region for an insulating fluid of the on-load tap changer to flow; a second region separated from the first region by a wall; and a detector for detecting an increased flow speed of the insulating fluid. The detector includes: a flow flap in the first region configured to tilt from a defined flow speed of the insulating fluid from a first position to a second position; a first magnet secured to the flap such that in the second position of the flow flap, the first magnet is in an immediate vicinity of the wall; a second magnet in the second region in the immediate vicinity of the wall; and a switch in the second region that is operationally coupled to the second magnet such that tilting over of the flow flap from the first position to the second position actuates the switch.

An inductive charging device for an electrically operated vehicle includes a housing, at least one induction coil and at least one magnetic conductor each arranged at least partially in the housing, and a supporting structure arranged at least partly in the housing. The housing includes a bottom and a cover. The support structure includes a first structure portion and a second structure portion. The second structure portion lies at least partly against a cover portion of the cover.