Abstract:
A magnetic actuator unit is provided for a circuit breaker, such as a medium voltage vacuum circuit breaker. The magnetic actuator unit includes a core, a coil, an actuating shaft, a first movable plate, a second movable plate, and a non-magnetic flat insert arranged between the core and the second movable plate. The magnetic actuator unit configured to switch the circuit breaker ON and OFF by moving the first movable plate between an ON position and an OFF position. The non-magnetic flat insert and the second movable plate are configured to adjust a holding force of the magnetic actuator unit provided by the second movable plate at the OFF position. The holding force is sufficient for holding the second movable plate at the OFF position against outer forces that are acting on the magnetic actuator unit.
Abstract:
An exemplary reverse-conducting power semiconductor device with a wafer having a first main side and a second main side parallel to the first main side. The device includes a plurality of diode cells and a plurality of IGCT cells, each IGCT cell including between the first and second main side: a first anode electrode, a first anode layer of a first conductivity type on the first anode electrode, a buffer layer of a second conductivity type on the first anode layer, a drift layer of the second conductivity type on the buffer layer, a base layer of the first conductivity type on the drift layer, a first cathode layer of a second conductivity type on the base layer, and a cathode electrode on the first cathode layer. A mixed part includes the second anode layers of the diode cells alternating with the first cathode layers of the IGCT cells.
Abstract:
A strip winding for a transformer includes a plurality of winding modules each having a strip conductor wound around a winding axis. A winding segment is formed by at least two radially adjacent winding modules. At least one cooling channel extending in the axial direction is provided between at least two radially adjacent winding modules. At least two axially adjacent winding segments are provided, and the winding modules are connected electrically in series by connecting conductors. At least one connecting conductor is led at least in sections through the cooling channel along the axial extension of the cooling channel.
Abstract:
A gas-insulated switchgear assembly is provided that includes a housing having an interior containing insulating gas. A disconnector is disposed in the housing and includes a movable contact, as well as fixed contacts that are spaced apart and arranged linearly in a direction perpendicular to a wall of the housing. The movable contact has a colored or topographical marking and is linearly movable among a plurality of positions. The wall of the housing is provided with an inspection window that permits a person to see the colored or topographical marking in relation to the fixed contacts, thereby permitting the person to determine the position of the movable contact.
Abstract:
A coil and electric shielding arrangement for a dry-type transformer includes an electric shielding device arranged at a distance from a winding, at an axial end of the winding perpendicular to a longitudinal axis of the transformer, and parallel to a top surface of a coil that is wound around the axis such that the electric shielding device covers a cross-sectional area of the winding perpendicular to the longitudinal axis. An insulation material attached to the winding and to the electric shielding device establishes a first distance between the winding and the electric shielding device along the longitudinal axis such that the winding is shielded against another electric field. The winding and the electric shielding device are casted in a block which insulates the electric shielding device from the electric field of the winding by establishing a second distance between the winding and the electric shielding device.
Abstract:
The present disclosure provides for the shielding of clamps of a transformer, and including an electric shielding arrangement for a transformer and a transformer with the arrangement. An electric shielding arrangement for a transformer is provided, with a clamp which is attached at a yoke and stabilizes the yoke of the transformer. The arrangement includes an electric shielding device arranged at the clamp between the yoke and a winding of the transformer and having a trough-like form. The electric shielding device may have the form of a rounded cover and is configured to shield the clamp from an electric field of the winding.
Abstract:
A thermosiphon cooler arrangement is provided for the cooling of electric and/or electronic components, including a module of an electric and/or electronic system. The module includes a guiding structure and an inlet for receiving a stream of cooling air, and an outlet for releasing cooling air thereafter in an operating state of the module. The guiding structure is provided for guiding the cooling air entering through the inlet and leaving the module through the outlet in an operating state of the module. The module includes a thermosiphon cooler with an evaporator and a condenser for transferring a majority of a heat load to the cooling air in an operating state of the module. The evaporator is tilted with respect to the condenser wherein the condenser is arranged such that a major portion of the cooling air flows through the condenser.
Abstract:
A phase control thyristor includes a main gate structure and a plurality of local emitter shorts dots arranged in a shorts pattern on a cathode side of the thyristor. The main gate structure includes longitudinal main gate beams extending from a center region of the cathode side towards a circumferential region. Neighboring main gate beams are arranged with a distance with respect to an associated intermediate middle line. The shorts pattern is more homogeneous in a region closer to a main gate beam than in a region closer to an associated middle line. Adaptions to match shorts patterns in neighboring segments of the cathode side surface are made in regions away from the main gate beams such that an electron hole plasma spreading from the main gate beam is not interfered by any inhomogeneity of the shorts dots pattern. The design rules enable an improvement of the thyristor operational characteristics.
Abstract:
The present disclosure relates to the cooling of electric and/or electronic components, in particular to an electric and/or electronic system with a cabinet, which includes a cabinet housing including a first aperture for receiving a stream of cooling air. The cabinet housing includes a second aperture for releasing the cooling air thereafter in an operating state of the cabinet. At least two modules, which each include a guiding structure with an inlet and an outlet, are provided in the cabinet. The at least two modules are arranged in the cabinet housing such that a branch of the major portion of cooling air flowing through the first aperture of the cabinet housing is enabled to flow into each module via the inlet guided by the guiding structure through the dedicated module to the outlet and thereafter through the second aperture out of the cabinet housing.
Abstract:
A method and system are disclosed for adapting a production flow schedule for one or more production processes, each having one or more process steps that use power for the execution thereof. An exemplary method includes identifying at least one availability time window in which there is a predetermined minimum power availability within a predetermined optimization time period based on a piece of availability information which indicates a forecast power availability during the optimization time period; providing an indication of one or more flexible process steps, which can be executed in a plurality of alternative time windows within the optimization time period; and for each of the flexible process steps, temporally rearranging the corresponding flexible process step into one of the corresponding alternative time windows if the rescheduling is within the availability time window in order to obtain an adapted production flow schedule.