Abstract: An exemplary transformer winding including at least two hollow-cylindrical, axially adjacent winding modules, which are arranged about a common winding axis and have an electrical conductor wound in layers, and a common electrical insulting layer, through which the winding modules are enveloped. The insulating layer has at least one annular, radial depression or annular, radial elevation, which is salient transversely to the winding axis on the radial outer face of said insulating layer.

Abstract: A transformer winding device, a method and a transformer are disclosed. The transformer winding winding device includes a rotary device configured to extend along an axis of rotation and configured to receive a transformer winding to be wound, at least one device configured to provide a plurality of insulation strips, and a comb-like guide device. The comb-like device is configured to deflect the plurality of insulation strips into at least one common winding plane and fed parallel to one another, at an angle to an axis of rotation, to the transformer winding to be wound. The comb-like guide device can include at least a first guide device element for a first group of insulation strips and a second guide device element for a second group of insulation strips, wherein the first and second guide device elements are offset with respect to one another in terms of axial length.

Abstract: A dry-type transformer heater includes a closed housing, and at least one transformer winding arranged in the housing. The at least one transformer winding includes at least one corresponding winding conductor and a corresponding insulation layer surrounding the transformer winding, respectively. In addition to the respective winding conductor, at least one coil heating wire is provided in at least one of the insulation layer and on the surface of the insulation layer to input thermal power into the respective insulation layer.

Abstract: The disclosure is related to a dry transformer, which includes a transformer core with at least two parallel limbs and upper and lower yokes, and at least two hollow cylindrical coils, each arranged as neighbored coils around a limb of the at least two parallel limbs. A cooling system can include at least one wall-like diaphragm in-between the neighbored coils, which is in parallel to the orientation of the limbs.

Abstract: An exemplary transformer winding including at least two hollow-cylindrical, axially adjacent winding modules, which are arranged about a common winding axis and have an electrical conductor wound in layers, and a common electrical insulting layer, through which the winding modules are enveloped. The insulating layer has at least one annular, radial depression or annular, radial elevation, which is salient transversely to the winding axis on the radial outer face of said insulating layer.

Abstract: At least two winding modules nested hollow-cylindrically one inside the other and extending around a common winding axis, wherein said winding modules are spaced radially apart from one another within at least one hollow-cylindrical cooling channel arranged therebetween by means of insulation strips, wherein the insulation strips have a cross-sectional form which avoid a surface profile radially with respect to the winding axis, the insulation strips including one of a fiber-reinforced epoxy, polyester resin, or from an unreinforced thermoplastic material.

Abstract: An exemplary arrangement includes blocks arranged between the inner winding, the individual barriers and the outer winding in order to maintain defined spacing's along the circumference. At least two coils are arranged axially one above the other on a common core limb. Each coil has at least two windings arranged radially one above the other and barriers are provided between the windings. The barriers of adjacent coils are radially offset with respect to one another, and the edge regions of the barriers engage one another in a comb-like manner.

Abstract: A method is provided for producing windings for a dry-type transformer with in each case one winding for the low voltage (LV winding) and one for the high voltage (HV winding). The LV and HV windings are each electrically insulated from one another and have layers which are electrically insulated from one another by virtue of, initially, the winding for the low voltage being produced from electrically conductive wire or tape material and an insulating layer including resin-impregnated fibre material. Prior to the application of the HV winding, the maximum insulating thickness for the layer insulation and the number of fiber rovings corresponding to this insulating thickness can be determined, and each winding layer and the associated insulating layer can be produced simultaneously with a physical offset with respect to one another.

Abstract: A method is provided for producing windings for a dry-type transformer with in each case one winding for the low voltage (LV winding) and one for the high voltage (HV winding). The LV and HV windings are each electrically insulated from one another and have layers which are electrically insulated from one another by virtue of, initially, the winding for the low voltage being produced from electrically conductive wire or tape material and an insulating layer including resin-impregnated fibre material. Prior to the application of the HV winding, the maximum insulating thickness for the layer insulation and the number of fibre rovings corresponding to this insulating thickness can be determined, and each winding layer and the associated insulating layer can be produced simultaneously with a physical offset with respect to one another.

Abstract: An apparatus and method for data security for a vehicle component in which security data is stored in the vehicle component are provided. Security data which is present in the vehicle component is stored in the vehicle component after having been encrypted by an encryption method and, when necessary, is decrypted by a decryption method and stored again after use having been encrypted again by the encryption method.

Abstract: An ink is disclosed for producing an ink jet print receptive surface on coated or coated polymer substrates such as CD-R substrates. The ink comprises a solid water soluble salt of acrylamidoalkanesulfonic acid, one or more ethylenically unsaturated monomers or oligomers capable of being photopolymerized by ultra-violet radiation, one or more functional extender pigments, and one or more photoinitiators. A modified silicone may be added to the ink to control the spread of the ink-jet print and the print definition. The inks are hardened by exposure to ultra-violet light. The ink may be over-printed with thermal drop-on-demand ink-jet printers.

Abstract: An ink is disclosed for producing an ink jet print receptive surface on coated or coated polymer substrates such as CD-R substrates. The ink comprises a solid water soluble salt of acrylamidosulfonic acid, one or more ethylenically unsaturated monomers or oligomers capable of being photopolymerized by ultra-violet radiation, one or more functional extender pigments, and one or more photoinitiators. A modified silicone may be added to the ink to control the spread of the ink-jet print and the print definition. The inks are hardened by exposure to ultra-violet light. The ink may be over-printed with thermal drop-on-demand ink-jet printers.

Abstract: Transmission unit for motor vehicles of the type containing a continuous variable transmission (2) consisting of an ingoing shaft (3), a driven shaft (4), two pulleys (5-6) situated on the ingoing shaft (3) and the driven shaft (4) respectively, and an endless transmission element (7) provided between said pulleys (5-6), whereby the above-mentioned pulleys (5-6) each consist of two pulley halves (8-9, 10-11) with conical contact surfaces (12) which can be axially adjusted in relation to one another, such that the transmission ratio between the ingoing shaft (3) and the driven shaft (4) can be continuously altered, whereby the transmission element (7) consists of a lubricated belt which is provided with metal parts (13) having contact surfaces (14) which work in conjunction with the above-mentioned conical contact surfaces (12) of the pulley halves (8-9, 10-11), and whereby the contact surfaces (14) of the parts (13) have a profiling (17), in particular a profiling (17) procuring a thin-film lubrication, where

Abstract: A solids-liquid mixture, such as waste water, containing biologically degradable material is treated in a circulatory system having alternating upward and downward flow kept in motion by injection of gas such as air. Mixture is diverted from the system into a separating chamber in which solids-enriched mixture is separated by flotation and/or sedimentation. A solids-rich mixture, preferably recycled from the separation chamber, is fed into the system hydrostatically and thereby the concentration of such solids in the system is maintained and/or such solids are transferred from one location to another without mechanical pumping.

Abstract: A method and apparatus for continuous fermentation wherein a limiting nutrient such as a carbon source is supplied to a culture at sufficient positions and at suitable rates to ensure that another nutrient such as oxygen does not effectively become the limiting nutrient. The invention is particularly applicable to the cultivation of bacteria such as Pseudomonas methylotropha upon methanol where it is undesirable that oxygen should become the limiting nutrient in any part of the culture.