Abstract: A circuit arrangement for voltage testing and partial discharge capture in a single-phase or multi-phase medium-voltage or high-voltage installation includes one or more conductor signal inputs that are couplable to respective capacitive coupling electrodes that are coupled to respective conductors of the installation, a voltage testing unit coupled to the relevant conductor signal input and configured for threshold-based voltage state capture, a partial discharge detector unit, and an energy supply for the partial discharge detector unit with a first energy supply circuit for supplying energy from the relevant conductor signal input and/or with a second energy supply circuit for supplying energy from the relevant conductor signal input. An input side of the partial discharge detector circuit is couplable via a partial discharge connection path to an earth side of an installation system capacitance that is electrically parallel to the capacitive coupling electrode.

Abstract: An apparatus for recovering halogenated hydrocarbons has a desorption vessel which accommodates a sorbent which comprises the halogenated hydrocarbons, a steam generator which is configured to produce steam from water supplied to the steam generator and to introduce the steam which is produced into the desorption vessel in a manner such that the halogenated hydrocarbons are desorbed from the sorbent and absorbed by the steam, a cooling device which is configured to cool the steam supplemented with halogenated hydrocarbons in a manner such that a condensate is formed, and a collecting vessel which receives the condensate is provided.

Abstract: A filter system for a building, in particular a hospital, having an exhaust air duct, by means of which a gas mixture is conducted out of the building, and a filter device, which is assigned to the exhaust air duct and is configured to filter at least partially anaesthetic gases out of the gas mixture flowing through the filter device is provided. A filter device for installation in a filter system is also provided.

Abstract: An air-supplied dry cooler for the condensation of water vapor includes at least one direct-flow condenser and at least one counter-flow condenser (dephlegmator), wherein heat exchanger pipes of the counter-flow condenser are connected to an upper suction chamber, and wherein a cover reducing the discharge cross-section of at least one heat exchanger pipe is provided with cover orifices. The sum of the cross-sectional surfaces of the cover orifices corresponds to no more than the cross-sectional surface of a suction pipe connection to the suction chamber.

Abstract: An electrical circuit breaker, in particular a high-voltage circuit breaker filled with insulating gas, is described. The circuit breaker is furnished with a first contact, in particular, a contact pin and a second contact, in particular, a tulip contact that are movable in opposite directions. The circuit breaker is furnished with a drive mechanism that is coupled to the second contact. The circuit breaker is furnished with a reversing gear that produces a coupling between the second and the first contact. A first indicator element is provided that is associated with the reversing gear.

Abstract: The present invention relates to a load control device for an engine and to a method for controlling the load. The load control device comprises a compressor for compressing air in an intake system of the engine; an exhaust gas line for discharging an exhaust gas mass flow from the engine; a turbine that is driven by an exhaust gas mass flow supplied by the exhaust gas line and that drives the compressor; a bypass line that branches off the exhaust gas line upstream of the turbine, wherein a first valve is disposed in the bypass line for controlling the mass flow in the bypass line; and an active cooling device that is disposed upstream of the valve.

Abstract: An air condenser with upward oriented tube bundles for condensing steam, wherein the tube bundles form sidewalls of a cell in form of a circumferentially closed, vertically extending polygon, wherein a fan is arranged above the polygon. Two of the circumferential sidewalls of the cell are formed by tube bundles, wherein these sidewalls enclose an angle smaller than 90° and wherein the at least one further side wall is impermeable to air.

Abstract: Method for setting up a condensation plant, for which two tube bundles (2, 3) are placed on a roof-shaped preassembly frame (1) and connected to one another in a first area. The tube bundles (2, 3,), along with the base plates (5, 6) thereof which hold the heat-exchanger tubes, are placed in supports (10) at a roof ridge strut (11) of the preassembly frame (1) in such a way that the mutually facing longitudinal sides (12, 13) of the base plates (5, 6) can be welded together by means of a root seam, before the preassembled roof-shaped tube bundle delta (14) is lifted from the preassembly frame (1) and brought into the installed position.

Abstract: Method for producing a heat exchanger with the following steps: a) hot dip refining a steel sheet to form a corrosion-protection layer (3), wherein the corrosion-protection layer (3) contains zinc and between 0.5% and 60% aluminum; b) removal of the corrosion-protection layer (3) from one side of the steel sheet; c) production of a heat exchanger tube (2) from this steel sheet, wherein the corrosion-protection layer (3) is arranged on the outside; d) provision of ribs (6) of aluminum or an aluminum alloy; e) provision of a flux; f) provision of a filler material (8) containing aluminum and silicon in the connecting region between the ribs (6) and the outside of the heat exchanger tube (2); g) connection of the heat exchanger tube (2) to the ribs (6) in a brazing operation.

Abstract: An air-cooled condenser system (1) comprises a platform (2) carrying heat exchanger elements (4), steam distribution lines (6), and fans (5). The platform (2) is arranged on pillars (3), which previously are introduced into the soil beneath the platform. The platform (2) is mounted close to the ground, wherein the intake chamber (21) required beneath the platform (2) is formed by removing soil beneath the platform (2). In this way, the platform (2) can be mounted at low height and with little effort.

Abstract: The invention relates to a condenser (1) which is exposed to air, having a ventilator (2) which conveys cooling air, is arranged in particular below condensation elements (4, 5) arranged in an A-shape, and presses intake cooling air into the triangular interior space (6) which is delimited by the ventilator (2) and the condensation elements (4, 5). Also provided are means for adiabatic cooling of the cooling air, wherein the means for adiabatic cooling are contact bodies (7) which can be placed in contact with water to be evaporated and which are arranged in the region of the cooling air flow (3).

Abstract: An air-supplied dry cooler for the condensation of water vapor includes at least one direct-flow condenser and at least one counter-flow condenser (dephlegmator), wherein heat exchanger pipes of the counter-flow condenser are connected to an upper suction chamber, and wherein a cover reducing the discharge cross-section of at least one heat exchanger pipe is provided with cover orifices. The sum of the cross-sectional surfaces of the cover orifices corresponds to no more than the cross-sectional surface of a suction pipe connection to the suction chamber.

Abstract: An electric switchgear (10) with a pole of the switchgear filled with insulating gas is provided. A monitoring device (14) is provided for monitoring the insulating gas in the switchgear pole. A device (20) is provided that has a test connection (28) for a testing device to test the monitoring device (14). The device (20) is connected to the monitoring device (14) and the switchgear pole. The device (20) has a valve (23), with which the switchgear pole can be detached from the monitoring device (14).

Abstract: The invention relates to a condensation system comprising heat exchanger elements arranged above fans which are held in fan sections (1) arranged as a frame carried by a supporting framework (2). The supporting framework (2) comprises a plurality of supports (3), at least one support (3) comprising a column (5) extending vertically in relation to the fan sections (1), and head struts (6) connecting above the column (5) and extending obliquely in relation to the fan section (1) and the column (5), said struts extending towards the corners (7) of a fan section (1).

Abstract: A condensation method is described according to which exhaust steam from a turbine (1) of a condensation power plant is supplied to an air-cooled condenser (3) for condensation. The condensate (K) obtained in the condenser (3) is preheated in a condensate heating stage (6) prior to its supply to an evaporator upstream of the turbine (1) by means of a feed pump. The condensate (K) is heated by a partial steam flow (T) of the turbine (1). A degasifier (8) is mounted in parallel to the condensate heating stage (6) for degasifying the makeup feed water (W).

Abstract: Method for producing a heat exchanger with the following steps: a) hot dip refining a steel sheet to form a corrosion-protection layer (3), wherein the corrosion-protection layer (3) contains zinc and between 0.5% and 60% aluminum; b) removal of the corrosion-protection layer (3) from one side of the steel sheet; c) production of a heat exchanger tube (2) from this steel sheet, wherein the corrosion-protection layer (3) is arranged on the outside; d) provision of ribs (6) of aluminum or an aluminum alloy; e) provision of a flux; f) provision of a filler material (8) containing aluminum and silicon in the connecting region between the ribs (6) and the outside of the heat exchanger tube (2); g) connection of the heat exchanger tube (2) to the ribs (6) in a brazing operation.

Abstract: Method for setting up a condensation plant, for which two tube bundles (2, 3) are placed on a roof-shaped preassembly frame (1) and connected to one another in a first area. The tube bundles (2, 3,), along with the base plates (5, 6) thereof which hold the heat-exchanger tubes, are placed in supports (10) at a roof ridge strut (11) of the preassembly frame (1) in such a way that the mutually facing longitudinal sides (12, 13) of the base plates (5, 6) can be welded together by means of a root seam, before the preassembled roof-shaped tube bundle delta (14) is lifted from the preassembly frame (1) and brought into the installed position.

Abstract: The invention relates to a power station comprising a condenser installation (2) for the condensation of water vapour, said condenser installation being mounted on a supporting structure (8) and comprising heat exchanger elements (5) past which cooling air flows from below. The condenser installation (2) is arranged in such a way that a longitudinal side thereof is directly adjacent to a building structure of the power station (1). A turbine house (3) comprises at least one wind passage (6) through which cooling air flows and/or is sucked beneath the heat exchanger elements (5).