Abstract: A device for connecting to a high-voltage grid carrying an AC voltage and having a plurality of phases, includes an active part having at least one phase connection for connecting to a phase of the high-voltage grid, at least one step winding connected downstream of one of the phase connections and having a plurality of taps, a tap changer having, for each step winding, a selector for currentlessly switching over from a current to a desired tap of the step winding, and a load changeover switch connected downstream of the selector in series for commutating the current from the current to the desired tap, for avoiding a high short-circuit current in the step winding or in the tap changer. An impedance unit, having an impedance to be switched between a low impedance and a high impedance, is disposed between each selector and each load changeover switch.

Abstract: A device for connecting to a high-voltage grid carrying an AC voltage and having a plurality of phases, includes an active part having at least one phase connection for connecting to a phase of the high-voltage grid, at least one step winding connected downstream of one of the phase connections and having a plurality of taps, a tap changer having, for each step winding, a selector for currentlessly switching over from a current to a desired tap of the step winding, and a load changeover switch connected downstream of the selector in series for commutating the current from the current to the desired tap, for avoiding a high short-circuit current in the step winding or in the tap changer. An impedance unit, having an impedance to be switched between a low impedance and a high impedance, is disposed between each selector and each load changeover switch.

Abstract: A circuit (15) for an electrical plant (10) with a first and a second control winding (11, 13) comprises a first on-load tap changer (16) with a first diverter terminal (161) and three first switch terminals (162), of which at least two can be connected with associated first taps (12) of the first control winding (11); and a second on-load tap changer (17) with a second diverter terminal (171) and three second switch terminals (172) of which at least two can be connected with associated second taps (14) of the second control winding (13); wherein the second diverter terminal (171) is connected with the first diverter terminal (161) or with a first switch terminal (162?) not associated with the first tap (12).

Abstract: An electrical system (1) for a three-phase alternating current network, comprising a transformer (20U, 20V, 20W) with a primary side (30U, 30V, 30W) and a secondary side for each phase (U, V, W) of the alternating current network; a separate transformer housing (60U, 60V, 60W) for each transformer (20U . . . W); and a switching assembly (100) connected to the transformers (20U . . . W); wherein the primary side (30U . . . W) and/or the secondary side has a main winding (21, 22, 23) and a regulating winding (31, 32, 33) in each phase; the switching assembly (100) is designed such that it can connect each regulating winding (31, 32, 33) with each of the main windings (21, 22, 23); and the switching assembly (100) is arranged in one of the transformer housings (60U . . . W) or in an own switch housing (70).

Abstract: A circuit (15) for an electrical plant (10) with a first and a second control winding (11, 13) comprises a first on-load tap changer (16) with a first diverter terminal (161) and three first switch terminals (162), of which at least two can be connected with associated first taps (12) of the first control winding (11); and a second on-load tap changer (17) with a second diverter terminal (171) and three second switch terminals (172) of which at least two can be connected with associated second taps (14) of the second control winding (13); wherein the second diverter terminal (171) is connected with the first diverter terminal (161) or with a first switch terminal (162?) not associated with the first tap (12).

Abstract: An electrical system (1) for a three-phase alternating current network, comprising a transformer (20U, 20V, 20W) with a primary side (30U, 30V, 30W) and a secondary side for each phase (U, V, W) of the alternating current network; a separate transformer housing (60U, 60V, 60W) for each transformer (20U . . . W); and a switching assembly (100) connected to the transformers (20U . . . W); wherein the primary side (30U . . . W) and/or the secondary side has a main winding (21, 22, 23) and a regulating winding (31, 32, 33) in each phase; the switching assembly (100) is designed such that it can connect each regulating winding (31, 32, 33) with each of the main windings (21, 22, 23); and the switching assembly (100) is arranged in one of the transformer housings (60 U . . . W) or in an own switch housing (70).

Abstract: An electrical device having a generator, e.g., for use in the vehicle electrical system of a motor vehicle, includes a controller for controlling the generator voltage. In the device, an area is provided in which a voltage control is carried out, and other areas are provided in which a torque control is carried out.

Abstract: An electrical device having a generator, e.g., for use in the vehicle electrical system of a motor vehicle, includes a controller for controlling the generator voltage. In the device, an area is provided in which a voltage control is carried out, and other areas are provided in which a torque control is carried out.

Abstract: A rotation transmitter for rotor-excited electrical machines, in particular for synchronous generators in motor vehicles, is disclosed, which has a primary part (14) with a primary core (17) comprised of a magnetically conductive material and a primary winding (18) inserted into it, and has a coaxial secondary part (15) that can rotate in relation to the primary part (14) and has a secondary core (20) comprised of magnetically conductive material and a secondary winding (21).

Abstract: A rotation transmitter for rotor-excited electrical machines, in particular for synchronous generators in motor vehicles, is disclosed, which has a primary part (14) with a primary core (17) comprised of a magnetically conductive material and a primary winding (18) inserted into it, and has a coaxial secondary part (15) that can rotate in relation to the primary part (14) and has a secondary core (20) comprised of magnetically conductive material and a secondary winding (21).

Abstract: The invention takes as its departure point a housing (10) for receiving electric drives (16, 18, 20), in particular garage-door drives, and/or the controls (24, 26) thereof, which housing exhibits at least two housing parts (12, 14). Provision is made on the housing parts for a latching device (34, 52, 68, 110) and guide elements (108, 112) for the reliable connection of the housing parts (12, 14) and for latching-in and retaining functional components (22, 28, 78) and/or circuit boards (24, 26) for the controls. Consequently, a structure with few individual parts and simple mounting and demounting is achieved.