Abstract: A topology for surveying the integrity of a plurality of capacitors connected in series between a pair of bus lines arranged to be connected to a DC-power source comprises a plurality of resistors connected in series between the pair of bus lines, the plurality of resistors being connected in parallel to the plurality of capacitors; and a comparator comparing the electric potential of an intermediate point between two capacitors of the plurality of capacitors with the electric potential of an intermediate point between two resistors of the plurality of resistors. The comparator provides a signal signaling a difference between these two electric potentials, which indicates a loss of integrity of one capacitor of the plurality of capacitors.

Abstract: A power generation system for feeding electrical power from a generation unit into a three-phase grid via three AC terminals is disclosed. The system includes a relay arrangement for disconnecting the system from the grid having at least three relays. Each of the three relays includes a control coil and two switching contacts operated by the corresponding control coil. Each of the AC terminals is connectable to the grid via a first and a second switching contact, each of which is assigned to a different one of the relays. Further disclosed are a relay arrangement and an inverter with a relay arrangement.

Abstract: The present invention relates to a three-phase inverter (1) with a circuit arrangement having a DC-voltage input (2) for at least one direct voltage source, and a three-phase alternating voltage output (15) for feeding into a three-phase alternating voltage mains (19), wherein said inverter comprises a three-phase bridge circuit (20) as well as at least one divided intermediate circuit, wherein said inverter (1) is configured to be transformerless, wherein said neutral conductor (N) of the mains (19) is separated from the central point (M) of the intermediate circuit and the inverter (1) is connected to the alternating voltage mains (19) via a three-conductor connection (15).

Abstract: Process and control arrangement for introducing pulsing energy introduction into magnetron discharges. The process includes feeding a charge to the electrodes of a magnetron arrangement via a ignition source at a time t0, and, after the feeding of the electric charge, determining an ignition of the magnetron discharge. The process also includes introducing a current, having a predetermined value, from a boost source at a time t1, and, at a time t2, separating the ignition source from the electrodes of the magnetron arrangement. The introduction of the current by the boost source continues for a certain duration tEIN. The process also includes interrupting the introduction of the electric energy for a predetermined time tAUS.

Abstract: Process and control arrangement for introducing pulsing energy introduction into magnetron discharges. The process includes feeding a charge to the electrodes of a magnetron arrangement via a ignition source at a time t0, and, after the feeding of the electric charge, determining an ignition of the magnetron discharge. The process also includes introducing a current, having a predetermined value, from a boost source at a time t1, and, at a time t2, separating the ignition source from the electrodes of the magnetron arrangement. The introduction of the current by the boost source continues for a certain duration tEIN. The process also includes interrupting the introduction of the electric energy for a predetermined time tAUSj.