Abstract: Various embodiments of the teachings herein include an insulation system. The system may include a solid insulation material including a two-dimensional insulant and a synthetic resin. The two-dimensional insulant includes a blend of a copolymer with a high-temperature thermoplastic. The synthetic resin includes a thermoset to impregnate the two-dimensional insulant and then cure the two-dimensional insulant.

Abstract: Various embodiments of the teachings herein include an insulation system suitable as main insulation of an electrical rotating machine of rated voltage greater than 700 volts. The insulation system may include a powder coating applied using a powder coating formulation with at least two components. A first component includes an uncrosslinked polymer component polyimide-containing polymer. A second component includes an uncrosslinked siloxane-containing polymer. The first component and the second component are each in solid form at room temperature under standard conditions.

Abstract: Various teachings of the present disclosure include a slot insulation system of an electrical rotating machine. For example, the system may include: a main insulation for a coil of the rotating machine or for an individual bar for the coil; a resin formulation serving as a slot adhesive forming a solid film. At room temperature and under standard conditions, the solid film is in the A-state. Heating the electrical rotating machine to a curing temperature for the resin formulation, the solid film firstly melts and flows within an occupied slot, then cures and solidifies to form a thermoset material.

Abstract: Various teachings of the present disclosure include an electrical switching device. The device may include: two contactable conductor elements with adjustable spacing set by a movement apparatus; and a housing defining a switching chamber and at least partially surrounding the at least two conductor elements. The housing has an insulator body and regions of an electrical contact. The housing includes an external refraction-controlling coating with a dielectrically insulating matrix made of a material with a permittivity ?r>/=2.

Abstract: Various embodiments of the teachings herein include a corona shielding tape for further processing to give an insulation system comprising an impregnated winding with potential control via outer corona shielding “AGS” and/or internal potential controller “IPS” and/or terminal corona shielding “EGS”, the insulation system being producible by impregnating the winding with an anhydride-free and resin-based impregnating agent at 45-85° C. and under reduced pressure. The corona shielding tape may include: a carrier tape; an electrically conductive and/or partly conductive filler in a polymer matrix; and a tape accelerator suitable for curing and/or gelation of the impregnating agent. The polymer matrix contains at least one polyvinylalcohol and/or a polyvinylalcohol copolymer. The accelerator is selected from the group consisting of: superacids and superacid salts suitable for acceleration of a cationic homopolymerization of the resin-based anhydride-free impregnating agent.

Abstract: Various applications of the teachings of the present disclosure include a powder coating formulation suitable for producing an insulation system of an electrical machine. The formulation may include: a curable resin mixture; and spherical SiO2 filler particles having a maximum particle diameter of 100 ?m.

Abstract: Various embodiments include a method for producing a ceramic insulator for a high-voltage or medium-voltage switching system comprising: attaching a base material for an equipotential layer between two axially symmetrical ceramic structural elements; disposing the electrically conductive equipotential layer between the two ceramic structural elements; and joining the two ceramic structural elements to form a unitary body along a symmetry axis of a first of the two elements.

Abstract: The invention relates generally to the field of insulating electrical conductors against partial discharge in the medium- and high-voltage ranges. In particular, the invention relates to an insulating system for an electric machine, in particular a rotating electric machine such as an electric motor and/or a generator. The invention provides for the first time a substitute for the conventionally used mica as a barrier material in an insulating system, such as the main insulation of rotating electric machines such as motors and/or generators. The substitute is based on a polyether-imide/siloxane copolymer, which can be processed two-dimensionally, for example by surface extrusion. In this way, sheets are produced and, after being processed in sheet form or as a laminate, can be used as planar insulating materials, or cut as strips, in insulating systems.

Abstract: Various embodiments include an insulation material for an electrical rotating machine comprising: a curable matrix material; a curing agent; and a filler embedded in the matrix material. The filler comprises electrically conductive doped metal oxide particles.

Abstract: A method of preparing a pharmaceutical product comprises the steps of (a) providing a neat active pharmaceutical ingredient (API) complying with at least five of the following parameters determined by using a FT4 powder rheometer: (i) specific basic flow energy of at most 60 mJ/g; (ii) stability index of 0.75 to 1.25; (iii) specific energy of at most 10 mJ/g; (iv) major principle stress at 15 kPa of at most 40; (v) flow function at 15 kPa of at least 1.3; (vi) consolidated bulk density at 15 kPa of at least 0.26 g/mL; (vii) compressibility of at most 47%; and (viii) wall friction angle of at most 40°; (b) dispensing the neat API of step (a) into a bottom part of a pharmaceutical carrier using a vacuum assisted metering and filling device; and (c) encapsulating the bottom part, thereby producing a pharmaceutical product.

Abstract: A high voltage direct current energy transmission (HVDCT) air-core inductor includes at least one concentric winding layer having electric terminals are formed at its ends, and includes an electrostatic shield that has a layer of electrostatically dissipative material having a surface resistance ranging from 109 to 1014 ohm/square, wherein at least one end of the layer is provided with a collector electrode that extends essentially along the circumference of the end of the layer and that is to be connected to one of the terminals, and where the layer is designed as a spray coating on an outer surface of an exterior winding layer.

Abstract: Various embodiments include a sprayable formulation for production of a multilayer insulation for an electrical machine, especially a rotating electrical machine in the high-voltage or mid-voltage sector, for example a generator, transformer, which is subjected to higher rated voltages at operating voltages, i.e., for example, over and above 1 kV or more. The invention also relates to an electrical machine comprising such an insulation; the invention finally relates to a method of producing the multilayer insulation. This comprises spraying of various formulations with or without intermediate, especially metallic, interfaces and is automatable.

Abstract: Various embodiments include an impregnation formulation for a wrapping tape insulation of an electrical machine. The formulation comprises: a resin formulation with an epoxy base resin and a first component; and a hardener formulation with a hardener. The resin formulation reacts when combined with the hardener formulation to produce an insulation material. The first component includes a saturated and/or unsaturated epoxycycloalkyl group. A glass transition temperature of the insulation material is elevated compared to an impregnation formulation without the first component.

Abstract: A formulation for injection moulding of a pharmaceutical carrier comprising 27-85% (w/w) of polyvinyl alcohol, and 10-60% (w/w) of a disintegration aid selected from maize starch, wheat starch, and combinations thereof; and optionally one or more excipients.

Abstract: The present invention relates to methods of preparing pharmaceutical products, involving filling active pharmaceutical ingredient powders into pharmaceutical carriers with a vacuum assisted metering and filling device. The methods disclosed herein can be used in a continuous process, such as in a high-throughput process for producing a pharmaceutical product. The present invention further relates to a particular quality of the neat active pharmaceutical ingredient (API) HDM201, i.e. siremadlin, present as succinic acid co-crystal, which can be used in the methods of preparation of the present invention.

Abstract: Various embodiments include an electrical operating medium having an insulation system comprising a main insulation in the form of an encapsulation by an encapsulating compound. The encapsulating compound comprises the following components: a carbon-based resin component A; a silicon/oxygen-based resin component B; where the ratio of the components A:B is in the range between A=99:B=1 to A=60:B=40; 0.1% to 10% by weight of catalyst; 30% to 85% by weight of dielectric filler; and 0-60% by weight of a curing agent.

Abstract: The invention relates to a heating circuit for induction heating coils of an induction cooking hob and to an induction cooking hob including such a heating circuit. In the heating circuit, there are in each case two auxiliary half bridges interconnected to excite a respective resonant circuit for an induction heating coil such that the resonant circuit is excited by a full bridge. Thereby, lost heat is considerably reduced. Via a connecting device the auxiliary half bridges can be controlled to excite induction heating coils, which are partly or fully covered by a cooking vessel.

Abstract: Various embodiments include an insulation material and/or impregnation resin for a wrapping tape insulation, comprising: a base resin curing to a thermoset; and a curing agent. The base resin comprises a siloxane-containing compound forming a —SiR2—O— backbone in the thermoset.

Abstract: The invention provides a corona shielding tape for use to form wound insulation by means of VPI impregnation with a pthalic anhydride-free impregnating epoxy resin. The shielding tape may comprise (1) a carrier tape comprised of a polymeric matrix comprising at least one polyvinyl alcohol derivative compound and having an electrically conductive or semi-conductive filler embedded therein, and (1) an adduct of one or more 1H-imidazole derivatives and one or more acrylates, or (2) a complex compound comprising (a) a metal salt selected from the group consisting of zinc, copper, iron, aluminum, and mixtures thereof, and (b) imidazole and/or pyrazole ligands.

Abstract: The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system for an electrical machine. For example, a corona shielding system may include: an outer corona shield and an overhang corona shielding. The outer corona shielding and the overhang corona shielding may comprise a first corona shielding material having a nonlinear field strength-dependent electrical resistance.