Abstract: An energy storage arrangement for an electric load which exchanges electrical power with an energy supply network, has two connections in the form of a load to the parallel circuit and for the energy supply network, a converter which is switched between the connections, is voltage-impressed and contains an energy store. The energy store is designed to store an energy amount which exceeds that necessary for the regular operation of the converter by a multiple. An arc furnace which is fed as a load from an energy supply network contains such an energy storage arrangement.

Abstract: A device for supplying energy to a long stator winding having multiple winding sections. The device includes an energy source, a supply line connected to the energy source, section switches that are connected to the supply line and that each have a connection for connecting the switch to one winding section each. The device is configured to enable reactive (idle) power compensation independently of the closed-loop control of the energy source. The device for the reactive power compensation is configured to adjust the impedance of the device.

Abstract: A device for controlling and monitoring an installation that is composed of sequentially disposed sub-sections in a chain so that each sub-section lies between a forward sub-section and a rearward sub-section, with the exception of the terminal sub-sections of the installation. Each sub-section is connected to a first control unit and a second control unit and the control units of the sub-sections communicate at least partially with one another, with the sub-sections, and/or with a higher-level control center. Increased safety requirements are satisfied with the novel device, while at the same time being cost-effective, in that the first control unit is also connected to the forward sub-section and the second control unit is also connected to the rearward sub-section.

Abstract: Process for the preparation of sulfuric acid monoesters of aminoalkanols by reacting sulfuric acid with aminoalkanols and removing the water forming in the reaction from the reaction mixture, sulfuric acid and at least one aminoalkanol being mixed and the hot reaction mixture forming being passed with turbulent flow into a container and being quenched therein with a fluid.

Abstract: A device for supplying energy to a long stator winding having multiple winding sections. The device includes an energy source, a supply line connected to the energy source, section switches that are connected to the supply line and that each have a connection for connecting the switch to one winding section each. The device is configured to enable reactive (idle) power compensation independently of the closed-loop control of the energy source. The device for the reactive power compensation is configured to adjust the impedance of the device.

Abstract: A long stator motor, particularly for driving a magnetic levitation transport system, includes a stator iron, inside of which grooves for accommodating cable windings are provided. At least two cable windings are placed one above the other by running at least two cables inside each groove.

Abstract: A method for detecting a ground fault of a multi-phase energy supply cable carrying alternating current includes determining an average potential of the energy supply cable, entering the average potential or a variable derived therefrom into an evaluation unit, and comparing the average potential or the variable derived from the average potential with a threshold value in the evaluation unit. Ground faults are detected reliably and less expensively by presuming a ground fault if the comparison indicates that the value of the average potential or the variable derived therefrom has fallen below the threshold.

Abstract: A circuit device is disclosed which is used to increase useable motor voltage in a long stator drive. Further, suitable methods for operating a magnetically levitated vehicle provided with the circuit device are also disclosed. In one embodiment of the present invention, the stator section of the long stator drive is connected to the energy supply line on two connection points by way of a first and a second switch. A third switch is located between both connection points arranged on the energy supply line. Both of the stator section connections are connected to the ground potential by way of a fourth and a fifth switch. In one embodiment, in order to accelerate the magnetically levitated vehicle, the first and the second switches are closed and all other switches are opened. The stator section is cross-flown in a direct manner by current in the energy supply line.

Abstract: A device for controlling and monitoring an installation that is composed of sequentially disposed sub-sections in a chain so that each sub-section lies between a forward sub-section and a rearward sub-section, with the exception of the terminal sub-sections of the installation. Each sub-section is connected to a first control unit and a second control unit and the control units of the sub-sections communicate at least partially with one another, with the sub-sections, and/or with a higher-level control center. Increased safety requirements are satisfied with the novel device, while at the same time being cost-effective, in that the first control unit is also connected to the forward sub-section and the second control unit is also connected to the rearward sub-section.

Abstract: Process for the preparation of sulfuric acid monoesters of aminoalkanols by reacting sulfuric acid with aminoalkanols and removing the water forming in the reaction from the reaction mixture, sulfuric acid and at least one aminoalkanol being mixed and the hot reaction mixture forming being passed with turbulent flow into a container and being quenched therein with a fluid.

Abstract: A power supply to the motor of a magnetic levitation railway system is provided with higher shut-off security which is comparably more economical and compact, and has a shorter shut-off time. As a result, a power supply device of at least one embodiment is provided with a frequency converter which is connected in a direct manner to an energy supply network with the input switching system. The frequency converter contains a rectifier which is arranged downstream from the input switching system, an intermediate circuit which is connected to the rectifier, an inverted rectifier end step which is arranged downstream from the intermediate circuit and which comprises an associated control device and an output switching system which is connected to the inverted rectifier end step and which is directly connected to the motor.

Abstract: A device is for braking a magnetic levitation railway, wherein the stator winding of a linear motor is short-circuited as a brake winding in a last section before an end of the route. There is a provision for two stator windings which extend alternately on the stator to be present in a penultimate section.

Abstract: A circuit device is disclosed which is used to increase useable motor voltage in a long stator drive. Further, suitable methods for operating a magnetically levitated vehicle provided with the circuit device are also disclosed. In one embodiment of the present invention, the stator section of the long stator drive is connected to the energy supply line on two connection points by way of a first and a second switch. A third switch is located between both connection points arranged on the energy supply line. Both of the stator section connections are connected to the ground potential by way of a fourth and a fifth switch. In one embodiment, in order to accelerate the magnetically levitated vehicle, the first and the second switches are closed and all other switches are opened. The stator section is cross-flown in a direct manner by current in the energy supply line.

Abstract: A method is for operating a vehicle of a magnetic levitation railway on a route which is fitted with a stator with a stator winding. There is provision for the time profile of the strength of the current to be measured in each provided supply phase of the stator winding. In addition, in the region of the respective supply phase on the route, the time profile of the magnetic flux of the magnetic leakage field emanating from the vehicle is measured. The force acting on the vehicle is then determined from current strength values, assigned magnetic fluxes and a motor constant of the vehicle. The force which is determined is compared with a threshold value and when the force deviates greatly the energy supply to the stator winding is interrupted.

Abstract: A device is for braking a magnetic levitation railway, wherein the stator winding of a linear motor is short-circuited as a brake winding in a last section before an end of the route. There is a provision for two stator windings which extend alternately on the stator to be present in a penultimate section.

Abstract: A method is for operating a vehicle of a magnetic levitation railway on a route which is fitted with a stator with a stator winding. There is provision for the time profile of the strength of the current to be measured in each provided supply phase of the stator winding. In addition, in the region of the respective supply phase on the route, the time profile of the magnetic flux of the magnetic leakage field emanating from the vehicle is measured. The force acting on the vehicle is then determined from current strength values, assigned magnetic fluxes and a motor constant of the vehicle. The force which is determined is compared with a threshold value and when the force deviates greatly the energy supply to the stator winding is interrupted.

Abstract: A device for the targeted sound transmission from an intake tract of an internal combustion engine to the interior of a motor vehicle. The device comprises at least one hollow transmission conduit, which communicates on the input side with the intake tract and to which at least one resonator chamber, which emits the sound to the motor vehicle interior, is connected. In order to achieve improved modulation of the sound that is emmitted to the motor vehicle interior, the inventive device has several resonator chambers operating in parallel, at least two of which differ from one another with respect to the tuning of their frequencies.

Abstract: The invention relates to a device (10) for the targeted sound transmission from an intake tract (1) of an internal combustion engine to the interior (21) of a motor vehicle. Said device comprises at least one hollow transmission conduit (12), which communicates on the input side with the intake tract (1) and to which at least one resonator chamber (13), which emits the sound to the motor vehicle interior (21), is connected. In order to achieve improved modulation of the sound that is emitted to the motor vehicle interior (21), the inventive device (10) has several resonator chambers (13) operating in parallel, at least two of which differ from one another-with respect to the tuning of their frequencies.

Abstract: A device for the targeted transmission of sound from an induction tract of an internal combustion engine in a motor vehicle into the interior of the motor vehicle, comprising a hollow transmission body which communicates with the induction tract on the intake side and which emits sound on the output side into the vehicle interior. In order to improve the sound emission of a device of this type, the invention proposes that the transmission body had a conduit section with a conduit cross-section and a chamber section with a chamber cross-section, whereby the chamber cross-section is larger than the conduit cross-section. The conduit section communicates with the induction tract on the intake side and opens into the intake side of the chamber section. The output side of the chamber section emits the sound into the vehicle interior.

Abstract: Feed accessory apparatus and process for feeding the tail of a material web into a roll machine. The apparatus includes an infeed section, a discharge section, a gripper head, and a carrier. The gripper head is pivotably arranged on the carrier to pivot around a swivel axis to be located in at least one of an infeed position and a discharge position. The process includes receiving a threading end of a material web in the apparatus while it is in an infeed position, and pivoting the apparatus around a swivel axis into a discharge position.