Abstract: Disclosed is a network device (1) of a lighting system. The network device (1) comprises a wireless interface (11) and a control unit (12). The control unit (12) is configured to advertise (21), over the wireless interface (11), at least two different wireless networking standards; receive (22), over the wireless interface (11), a response to an advertisement of one of the wireless networking standards; and activate (23) the wireless interface (11) for operation in accordance with the one of the wireless networking standards. This avoids a more extensive stock keeping for lighting systems being capable of wireless communications.

Abstract: The invention relates to a method for determining a value profile of a controlled variable of an electrical system. Differences between predetermined values of an output variable at an end time and a determined value of the output variable at the end time are determined. A value profile of the controlled variable in the time interval is predetermined, the value profile being dependent on an end value at the end time and is being determined uniquely by the specification of the end value. Allowed values of the controlled variable are determined such that, when the electrical system is activated, the value of the output variable at the end time is equal to the determined difference. A curve of the allowed values of the controlled variable is determined on the basis of the allowed values of the controlled variable. A point of intersection of the determined curve and a predetermined derating function is determined.

Abstract: Disclosed is a network device (1) of a lighting system. The network device (1) comprises a wireless interface (11) and a control unit (12). The control unit (12) is configured to advertise (21), over the wireless interface (11), at least two different wireless networking standards; receive (22), over the wireless interface (11), a response to an advertisement of one of the wireless networking standards; and activate (23) the wireless interface (11) for operation in accordance with the one of the wireless networking standards. This avoids a more extensive stock keeping for lighting systems being capable of wireless communications.

Abstract: The invention relates to a method for determining a value profile of a controlled variable of an electrical system. Differences between predetermined values of an output variable at an end time and a determined value of the output variable at the end time are determined. A value profile of the controlled variable in the time interval is predetermined, the value profile being dependent on an end value at the end time and is being determined uniquely by the specification of the end value. Allowed values of the controlled variable are determined such that, when the electrical system is activated, the value of the output variable at the end time is equal to the determined difference. A curve of the allowed values of the controlled variable is determined on the basis of the allowed values of the controlled variable. A point of intersection of the determined curve and a predetermined derating function is determined.

Abstract: The invention relates to a method and an arrangement for operating a system in which dismantling works are performed underwater in a liquid-filled vessel (10) of a nuclear facility, the liquid being guided in a circuit (20) and flowing through at least one filter device (26, 28, 30). The liquid in the circuit flows through at least a first filter device (26) in the form of a coarse filter and a second filter device (28), in which at least one device from the group of ion exchangers (1, 2, 3), reverse osmosis systems, ultrafiltration systems, activated carbon filters, zeolite filters, and biological filters is used for filtration.

Abstract: The invention relates to a method for operating an electric synchronous machine, having the steps of: —generating centered pulse-width-modulated switching signals for switching elements (T1 . . . T6) of half-bridges, wherein two switching elements (T1 . . . T6) are connected to a respective half-bridge in each case; second switching elements (T4 . . . T6) of each half-bridge are actuated in a complementary manner to the first switching elements (T1 . . . T3) of each half-bridge if a sufficient minimum measurement duration (TM) is thereby provided during which the switching signals of switching elements (T1 . . . T6) of two half-bridges lie at different potentials; —otherwise: —generating pulse-width-modulated switching signals for the switching elements (T1 . . . T6) of the half-bridges, said switching signals deviating from the center at least to such a degree that a sufficient minimum measurement duration (TM) is provided, wherein —the switching signals of the switching elements (T1 . . .

Abstract: The invention relates to a method for operating an electric synchronous machine, having the steps of:—generating centered pulse-width-modulated switching signals for switching elements (T1 . . . T6) of half-bridges, wherein two switching elements (T1 . . . T6) are connected to a respective half-bridge in each case; second switching elements (T4 . . . T6) of each half-bridge are actuated in a complementary manner to the first switching elements (T1 . . . T3) of each half-bridge if a sufficient minimum measurement duration (TM) is thereby provided during which the switching signals of switching elements (T1 . . . T6) of two half-bridges lie at different potentials;—otherwise:—generating pulse-width-modulated switching signals for the switching elements (T1 . . . T6) of the half-bridges, said switching signals deviating from the center at least to such a degree that a sufficient minimum measurement duration (TM) is provided, wherein—the switching signals of the switching elements (T1 . . .

Abstract: A communication module for a building technology device, especially a luminaire, is provided, wherein the communication module is configured to be connectable to an IoT-network and a communication bus, and being configured for a bi-directional communication on the IoT-network and the communication bus, wherein the communication module is configured to convert communication data between the communication bus and the IoT-network.

Abstract: The invention relates to a control device for a voltage transformer of an electrically operated vehicle, which voltage transformer feeds an n-phase electric machine, n>1. The control device comprises an observer unit, which is designed to determine a present rotational speed of the electric machine and a present output current of the voltage transformer, a computing unit, which is coupled to the observer unit and which is designed to compute an instantaneous wheel speed of the wheels of the vehicle in dependence on the determined present rotational speed, and a slip control unit, which is coupled to the computing unit and which is designed to at least temporarily apply a current correction amount to the output current of the voltage transformer if the present change of the wheel speed of the wheels exceeds a first predetermined threshold value.

Abstract: A holding device includes a Rogowski coil, where the Rogowski coil includes a line portion wound into a coil. The holding device further includes a housing part into which the Rogowski coil is connected. A fastening part is configured to be releasebly connected to the housing part and is further configured to be attached to a current-conducting means formed for conducting a current.

Abstract: A communication module for a building technology device, especially a luminaire, is provided, wherein the communication module is configured to be connectable to an IoT-network and a communication bus, and being configured for a bi-directional communication on the IoT-network and the communication bus, wherein the communication module is configured to convert communication data between the communication bus and the IoT-network.

Abstract: The present invention relates to an inductive energy transfer system and a method for the diagnosis of a foreign object detection of an inductive energy transfer system. For this purpose, a defined fault is introduced into the region to-be-monitored between primary coil and secondary coil of the inductive energy transfer system, and the response of the foreign object detection to said defined fault is then evaluated.

Abstract: The subject matter herein pertains to a current transformer, comprising a secondary coil, connection contacts for establishing electrically conductive contact with the secondary coil from the outside, and a housing having a housing body and a housing head, wherein the secondary coil is accommodated in the housing body and/or is attached to the housing body, and the connection contacts of the secondary coil are provided on the housing head. According to one implementation, a connecting mechanism is provided, by means of which the housing head and the connection contacts can be mechanically or electrically conductively detachably connected to the housing body and to the secondary coil. A current transformer is therefore provided, which is cost-effective to produce and is flexible in terms of the use thereof.

Abstract: The subject matter herein pertains to a current transformer, comprising a secondary coil, connection contacts for establishing electrically conductive contact with the secondary coil from the outside, and a housing having a housing body and a housing head, wherein the secondary coil is accommodated in the housing body and/or is attached to the housing body, and the connection contacts of the secondary coil are provided on the housing head. According to one implementation, a connecting mechanism is provided, by means of which the housing head and the connection contacts can be mechanically or electrically conductively detachably connected to the housing body and to the secondary coil. A current transformer is therefore provided, which is cost-effective to produce and is flexible in terms of the use thereof.

Abstract: The subject matter herein pertains to a current transformer, comprising a secondary coil, connection contacts for establishing electrically conductive contact with the secondary coil from the outside, and a housing having a housing body and a housing head, wherein the secondary coil is accommodated in the housing body and/or is attached to the housing body, and the connection contacts of the secondary coil are provided on the housing head. According to one implementation, a connecting mechanism is provided, by means of which the housing head and the connection contacts can be mechanically or electrically conductively detachably connected to the housing body and to the secondary coil. A current transformer is therefore provided, which is cost-effective to produce and is flexible in terms of the use thereof.

Abstract: The invention relates to an electric motor (1), in particular a fan motor, comprising a device (5) for generating a sequence (3) of signals that comprises a plurality of especially blocks (22) of signals. The blocks (22) of signals comprise a plurality of signals (19) having a specific signal duration (20). According to the invention, the signal duration (20) of the individual signals (19) varies.

Abstract: A multiple relay arrangement having a plurality of relay sockets which are arranged next to each other and a plurality of relays. The relay sockets contain additional plug connections with which the relays are controlled by the system cabling. The system cabling contains a distribution section having cable sections and plug connectors and allows the plurality of relays to be controlled.

Abstract: The invention relates to a method and to a device, in particular a control and evaluation unit, for recognizing a water passage or a high water level for a vehicle, which has, as a drive, an internal combustion engine having an exhaust train, in which the functionality of an emission control system is monitored or controlled by at least one exhaust sensor and the exhaust sensor is operated at least intermittently at high temperatures and has thermal shock susceptibility by design. According to the invention, a water recognition criterion is determined based on one or a plurality of distance sensors and, at critical values of the water level which are predicted or have already been reached, protective measures are initiated for the emissions control system of the vehicle or for the exhaust sensor or exhaust sensors arranged in the exhaust duct. Damage to exhaust sensors or to components of the emissions control system as a result of the severe cooling upon contact with water can thus be minimized.

Abstract: The invention relates to an electrical connecting module comprising: a module housing (101), which comprises a module receptacle (103, 119, 1209) with a first electrical connection terminal (105, 107); a module element (109, 1205) with a second electrical connection terminal (111, 113) and with a third electrical connection terminal (115, 117), wherein the module element (109, 1205) for electrically connecting the first connection terminal (105, 107) to the second connection terminal (111, 113) can be inserted (into the module receptacle (103, 119, 1209) and can be held in the module receptacle (103, 119, 1209) by means of a detachable latching connection; and a release device (125) for releasing the latching connection.