Abstract: A removable rocker switch unit (1) has a housing (7) and an ON- and an OFF-position removably fixed to the first end of the housing (2). The rocker switch (3) has two pairs of vertically and horizontally aligned connector elements (4). The housing (7) provides two chambers, each chamber for each phase of the rocker switch (7) including a first and a second connecting elements (5, 8) in each chamber arranged to be connected by a fuse (9), a current limiter (9) or both in a series connection and/or by a varistor (9) between connecting elements (5, 8) of the two different phases.

Abstract: An EMC filter circuit (1) has an essentially rigid busbar (3) for carrying an electric power to which is superposed a noise component in a conductive housing (2), which connected to ground. The filter (1) has two main elements inductors (4) increasing an impedance of the bus bar and capacitors (5) connected between the busbar (3) and the conductive housing (2). The capacitors (5) are inserted and tightly held solderless in position between the conductive housing (2) and the electric conductor (3). One advantage comes from the fact, that flat connection elements are arranged on both sides of the capacitors (5), which allow an easy manufacturing process.

Abstract: An EMC power filter comprising a filter circuit and a conductive housing (1) enclosing the filter circuit, wherein said filter circuit comprises: at least one electric conductor (3) consisting in a rigid busbar for carrying an electric power; at least one ferromagnetic element (4) for modifying the impedance of the electric conductor (3); at least one capacitor (5) electrically connected between the electric conductor (3) and the conductive housing (1); The housing has a tubular shape with a square cross section, allowing a rotation of the filter of 90° within the housing.

Abstract: An integrated magnetic device for low harmonics three-phase front-end (1) comprising three magnetic sub-assemblies (30), wherein each magnetic sub-assembly (30) comprises a magnetic core without air-gaps, three or more wound limbs and at least five windings, three current inputs connectable to a three-phase power grid (100), at least nine current outputs, three for each current inputs, said current outputs being galvanically connected to said three current inputs and connectable to a load (200). The integrated magnetic device is designed for a low harmonics three-phase bidirectional front-end and also for AC/DC rectifier and DC/AC power inverters. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line by using only one device which integrates a splitter and an inductor function. Compared to known solutions, cost, material and dimensions of the integrated magnetic device are reduced.

Abstract: A harmonic cancelling interphase magnetic device (1) comprising a magnetic core of rectangular shape with three wound legs (14) and two non-wound legs (12), wherein the cross-section of said non-wound legs (12) is thinner than the cross-section of said wound legs (14). The magnetic device is designed for a front end multi-pulse rectifier or inverter. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line. Compare to known solutions, cost, material and dimensions of the magnetic device are significantly reduced.

Abstract: An integrated magnetic for a low harmonics three-phase bidirectional front-end and also for AC/DC and DC/AC power converters. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line by using only one device which integrates a splitter and an inductor function. Compared to known solutions, cost, material and dimensions of the integrated magnetic device are reduced thanks to the magnetic core comprising three closed sub-assemblies and one or more jokes, separated by air-gaps from the sub-assemblies.

Abstract: A Passive harmonic filter (F) has an input node (B) for connection to a power supply (1), an output node (C) for connection to a load (15, 17) and an intermediate node (A). A first branch (3, 4) located between the input node (B) and the intermediate node (A) has at least one first inductance (4). A second branch (11, 13) located between the intermediate node (A) and the output node (C) has at least one second inductance (11). A third branch (5, 7, 9) is connected to the intermediate node (A) and has at least one capacitor (9). The first, second and third branch thus build a low-pass T-filter. A damping branch (22, 24) is provided having at least one first resistor (22), where the damping branch is arranged in parallel to the first branch.

Abstract: An active EMC filter for medical applications allows reducing the leakage current normally induced by large phase-to-ground capacitances. The filter may comprise an active shunt module or an impedance converter or a correction signal generator and is suitable both for three-phase and single-phase applications.

Abstract: An EMC active filter capable to maintain a low earth leakage current at all times, thus being compatible with RCD devices. The filter of the invention has an especially simple inductor's structure, where typically the power conductors pass straight through the filter, without windings, and most of the components can be implemented in a modular shunt circuit. Preferably the filter is realized by connecting the shunt module by an IDC device to the phase conductors, or directly to the line and load terminal, thus avoiding cutting and splicing high-current cables. The particular protection circuit of the filter prevents in-rush current at power on, and limits earth leakage current even in case of a fault in the line.

Abstract: It is disclosed an intelligent power monitoring unit (2) for the monitoring of a power supply (1), which comprises a power input (24) for the input of electrical power, a power output (25) for the output of electrical power, a power line connecting the power input (24) to the power output (25), a first EMI/RFI filter (21) for the reduction of electromagnetic noise on the power line, monitoring means for monitoring parameters of the electrical power on the power line and/or for monitoring parameters of the first EMI/RFI filter (21), a data processing unit (29) for receiving and processing signals from the monitoring means and for issuing control signals basing on these signals, and a data communication bus for exchanging data between the data processing unit (29) and a device (51) external to the monitoring unit (2). The invention relates as well to a power supply (1) with such an intelligent power monitoring unit (2).

Abstract: A Passive harmonic filter (F) has an input node (B) for connection to a power supply (1), an output node (C) for connection to a load (15, 17) and an intermediate node (A). A first branch (3,4) located between the input node (B) and the intermediate node (A) has at least one first inductance (4). A second branch (11,13) located between the intermediate node (A) and the output node (C) has at least one second inductance (11). A third branch (5, 7, 9) is connected to the intermediate node (A) and has at least one capacitor (9). The first, second and third branch thus build a low-pass T-filter. A damping branch (22, 24; 27, 28) is provided having at least one first resistor (22), where the damping branch is arranged in parallel to the first branch.

Abstract: EMC filter, for connection between a mains supply network and a mains-operated appliance to reduce conduction noise between said supply network and said appliance, comprising a voltage divider connected to said mains network, for generating a voltage lower than a voltage of said mains network; rectifying means, connected to an output of said voltage divider, for generating a DC voltage; and an electronic active circuit, supplied by said DC voltage, for absorbing a noise current transmitted between said supply network and said appliance.

Abstract: EMC filter, connectable between a supply network and an electric operated appliance to reduce conduction noise between said supply network and said appliance, comprising one voltage regulator having an output terminal whose potential is kept close to the earth potential, in order to reduce the voltage drop, at mains frequency, across a “Y” capacitor or an active shunt module. In this way the leakage current to earth is sensibly reduced. The device of the invention is especially useful in corner-earthed three-phase lines or in conjunction with RCD devices.

Abstract: An active EMC filter for machine tools allows reducing the leakage current normally induced by large phase-to-ground capacitances. The filter may comprise an active shunt module or an impedance converter or a correction signal generator and is suitable both for three-phase and single-phase applications.

Abstract: EMC filter, connectable between a supply network and an electric operated appliance to reduce conduction noise between said supply network and said appliance, comprising one voltage regulator having an output terminal whose potential is kept close to the earth potential, in order to reduce the voltage drop, at mains frequency, across a “Y” capacitor or an active shunt module. In this way the leakage current to earth is sensibly reduced. The device of the invention is especially useful in corner-earthed three-phase lines or in conjunction with RCD devices.

Abstract: The invention relates to the manufacturing of a multilayer structure and especially it relates to the manufacturing of a three-dimensional structure and its use as an electronics assembly substrate and as a winding for transformers and inductors. When a multilayer structure is manufactured by folding a conductor-insulator-conductor laminate, where the conductor layers to be separated from each other follow each other on opposite sides of the conductor-insulator-conductor laminate in the sections following each other and where the insulator has been removed from the places where the conductor layers are to be connected together after folding, it is possible to manufacture a wide range of three-dimensional multilayer structures where the volume occupied by the windings over the total volume can be maximized. Alternatively, by using the method it is also possible to manufacture a multilayer structure where components have been buried inside.

Abstract: Filter network for the reduction of the voltage switching speed between an electrical motor drive and an electrical motor and/or between an electrical distribution network and a motor drive, comprising for each electrical phase a self-damped inductor having a complex impedance determined by a magnitude (Z) and a phase (?), the phase (?) of the complex impedance being comprised between 80 and 90 degrees in the frequency range of the motor's current, and being less than 60 degrees in the frequency range of the overvoltage oscillations. Using the inventive filter network, it is possible to manufacture low cost and small size du/dt-filters generating low voltage overshoot and low losses.

Abstract: Lead-through terminal with a terminal casing (1) made of insulating material, at least one metallic outer conductor connecting element (3) arranged in the terminal casing (1) or protruding out of the terminal casing (1) and at least one metallic inner conductor connecting element (4) partly arranged in the terminal casing (1) and partly protruding out of the terminal casing (1), connected electrically with said at least one outer conductor connecting element (3). The terminal casing (1) can be fastened elastically in an opening of a housing wall (9) or such from one side only with fastening elements (21) integrated in said terminal casing (1). Thanks to this construction, the lead-through terminal can be fastened for example from outside to the housing wall (9) of an electrical apparatus without it being necessary to provide further fastening means inside the housing.