Abstract: The present invention relates to a device for determining a weight of a vehicle, the device being configured to: obtain a set of weights derived from in-motion weighing of the vehicle on a weighing bridge, wherein each weight in the set of weights represents one or more axle weights of the vehicle; select one or more weights in the set of weights such that the one or more selected weights together represent all axles of the vehicle and each axle of the vehicle is only represented once; determine a total weight of the vehicle based on the one or more selected weights. Furthermore, the invention also relates to a system and corresponding methods.

Abstract: An electrical short-circuiting closing switch including an electrically insulating housing; a first electrode having a tapered first electrode opening; a second electrode having a tapered second electrode opening; a movable contact having a tapered profile, the movable contact being movable relative to the housing along a closing axis from an open position, in which the movable contact is electrically disconnected from the second electrode, to a closed position, in which the movable contact electrically connects the first electrode and the second electrode by engaging the tapered profile with the first electrode opening and the second electrode opening; and an actuator arranged to force the movable contact from the open position to the closed position; wherein at least one of the first electrode and the second electrode is flexibly attached to the housing. A switchgear including a closing switch is also provided.

Abstract: An electrical switching device includes: a main contact arrangement including a fixed contact and a movable contact, a plurality of splitter plates, each having a loop structure, the splitter plates being coaxially stacked with respect to their loop structure to form a stack, wherein one splitter plate is a first outermost plate and another splitter plate is a second outermost plate, a first arc runner electrically connected to the second outermost plate and a second arc runner electrically connected to the first outermost plate, the first and second arc runners being configured to direct a main arc from the main contact arrangement to the stack to thereby split the main arc into a plurality of secondary arcs between the splitter plates, and a first drive coil electrically connected to the second arc runner and to the movable contact or to the first arc runner and to the fixed contact.

Abstract: An electrical short-circuiting closing switch including an electrically insulating housing; a first electrode having a tapered first electrode opening; a second electrode having a tapered second electrode opening; a movable contact having a tapered profile, the movable contact being movable relative to the housing along a closing axis from an open position, in which the movable contact is electrically disconnected from the second electrode, to a closed position, in which the movable contact electrically connects the first electrode and the second electrode by engaging the tapered profile with the first electrode opening and the second electrode opening; and an actuator arranged to force the movable contact from the open position to the closed position; wherein at least one of the first electrode and the second electrode is flexibly attached to the housing. A switchgear including a closing switch is also provided.

Abstract: An electrical switching device including: a main contact arrangement including a fixed contact and a movable contact, a plurality of splitter plates, each having a loop structure, the splitter plates being coaxially stacked with respect to their loop structure to form a stack of splitter plates, wherein one of the splitter plates of the stack of splitter plates is a first outermost splitter plate and another one of the splitter plates of the stack of splitter plates is a second outermost splitter plate, a first arc runner electrically connected to the second outermost splitter plate and a second arc runner electrically connected to the first outermost splitter plate, the first arc runner and the second arc runner being configured to direct a main arc from the main contact arrangement to the stack of splitter plates to thereby split the main arc into a plurality of secondary arcs between the splitter plates, and a first drive coil electrically connected to the second arc runner and to the movable contact or to

Abstract: A server and a communication device for a weighing system for dynamic weighing are disclosed. The communication device is configured to obtain supplementary weight information associated with a dynamic weighing event for a vehicle and transmit the supplementary weight information to the server. The communication device obtains the supplementary weight information prior to or after the dynamic weighing event for the vehicle. Thereby, registration of the vehicle can be performed prior to or after the dynamic weighing event and the vehicle does not have to stop at the dynamic weighing event.

Abstract: The present invention relates to a device for determining a weight of a vehicle, the device being configured to: obtain a set of weights derived from in-motion weighing of the vehicle on a weighing bridge, wherein each weight in the set of weights represents one or more axle weights of the vehicle; select one or more weights in the set of weights such that the one or more selected weights together represent all axles of the vehicle and each axle of the vehicle is only represented once; determine a total weight of the vehicle based on the one or more selected weights. Furthermore, the invention also relates to a system and corresponding methods.

Abstract: An electrical DC switching system for extinguishing an electric arc, wherein the electrical DC switching system includes: a main contact arrangement having a first contact and a second contact, the main contact arrangement being operable between a closed position and an open position, a plurality of serial contacts connected in series with each other and connected in parallel with the main contact arrangement, each serial contact being operable between a closed position and an open position, wherein in a current breaking operation the main contact arrangement is configured to be set in the open position before the plurality of serial contacts are configured to be set in their open positions, and a current injection circuit including a resonance circuit configured to be connected across the serial contacts, and a first switch configured to be switched between an open state and a closed state and configured to be connected to the resonance circuit and to the serial contacts, wherein the first switch is configur

Abstract: The present invention relates to a method and a weighing scale for weighing vehicles, the weighing scale comprising a weighing bridge having a first and second side for entering and leaving the weighing bridge; a weighing circuit comprising a first set of load sensors and a second set of load sensors coupled to a weight indicator, the first set of load sensors being arranged at the first side and the second set of load sensors being arranged at the second side; a measuring circuit arranged to measure at least one unbalance current in the weighing circuit when a vehicle enters or leaves the weighing bridge; a processing circuit arranged to determine at least one point in time when wheels of the vehicle enter the first side or leave the second side based on the at least one unbalance current.

Abstract: An electrical DC switching system for extinguishing an electric arc, wherein the electrical DC switching system includes: a contact arrangement having a first contact and a second contact, a current injection circuit including a resonance circuit configured to be connected across the contact arrangement, and a first switch connected to the resonance circuit and to the first contact, wherein the first switch is configured to be switched between an open state and a closed state, wherein in the closed state the first switch is configured to enable an injection current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a flow direction of a contact arrangement arc current, and an arc chute assembly including a plurality of splitter plates configured to extinguish an electric arc across the first contact and the second contact, wherein each splitter plate of the plurality of splitter plates has a layered configuration including a magnetic lay

Abstract: An electrical DC switching system for extinguishing an electric arc, wherein the electrical DC switching system includes: a main contact arrangement having a first contact and a second contact, the main contact arrangement being operable between a closed position and an open position, a plurality of serial contacts connected in series with each other and connected in parallel with the main contact arrangement, each serial contact being operable between a closed position and an open position, wherein in a current breaking operation the main contact arrangement is configured to be set in the open position before the plurality of serial contacts are configured to be set in their open positions, and a current injection circuit including a resonance circuit configured to be connected across the serial contacts, and a first switch configured to be switched between an open state and a closed state and configured to be connected to the resonance circuit and to the serial contacts, wherein the first switch is configur

Abstract: A switchgear includes a circuit breaking section having a moveable contact bridging element and at least one first arc chutes adjacent the contact bridging element, each arc chute including a base plate for connecting to the contact bridging element and a group of splitter plates placed adjacent the base plate, where the splitter plates of the groups are separated from the base plate and each other via air gaps and resistors interconnect at least some of the plates in at least a first of the arc chutes for bypassing corresponding air gaps, wherein the resistors have values in the range 5 k?-1 M?, current ratings below 100 mA and power ratings below 1 W.

Abstract: A switchgear includes a circuit breaking section having a moveable contact bridging element and at least one first arc chutes adjacent the contact bridging element, each arc chute including a base plate for connecting to the contact bridging element and a group of splitter plates placed adjacent the base plate, where the splitter plates of the groups are separated from the base plate and each other via air gaps and resistors interconnect at least some of the plates in at least a first of the arc chutes for bypassing corresponding air gaps, wherein the resistors have values in the range 5 k?-1 M?, current ratings below 100 mA and power ratings below 1 W.

Abstract: An electrical DC switching system for extinguishing an electric arc, wherein the electrical DC switching system includes: a contact arrangement having a first contact and a second contact, a current injection circuit including a resonance circuit configured to be connected across the contact arrangement, and a first switch connected to the resonance circuit and to the first contact, wherein the first switch is configured to be switched between an open state and a closed state, wherein in the closed state the first switch is configured to enable an injection current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a flow direction of a contact arrangement arc current, and an arc chute assembly including a plurality of splitter plates configured to extinguish an electric arc across the first contact and the second contact, wherein each splitter plate of the plurality of splitter plates has a layered configuration including a magnetic lay

Abstract: The present invention relates to a method and a weighing scale for weighing vehicles, the weighing scale comprising a weighing bridge having a first and second side for entering and leaving the weighing bridge; a weighing circuit comprising a first set of load sensors and a second set of load sensors coupled to a weight indicator, the first set of load sensors being arranged at the first side and the second set of load sensors being arranged at the second side; a measuring circuit arranged to measure at least one unbalance current in the weighing circuit when a vehicle enters or leaves the weighing bridge; a processing circuit arranged to determine at least one point in time when wheels of the vehicle enter the first side or leave the second side based on the at least one unbalance current.

Abstract: A switching system for breaking a current, including a contact arrangement having a first and second terminals, a resonance circuit connectable across the contact arrangement, In the closed state the first switch enables current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a contact arrangement arc current flow direction. A second switch connected to the resonance circuit and to the second terminal. In the closed state the second switch enables current to flow through the resonance circuit in a second flow direction opposite to the first flow direction.

Abstract: A switching system for breaking a current, including a contact arrangement having a first and second terminals, a resonance circuit connectable across the contact arrangement, In the closed state the first switch enables current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a contact arrangement arc current flow direction. A second switch connected to the resonance circuit and to the second terminal. In the closed state the second switch enables current to flow through the resonance circuit in a second flow direction opposite to the first flow direction.

Abstract: An electrical switchgear for fast limitation and interruption of fault currents includes a fixed electrode, a movable electrode having a contact portion and a repelling portion, a plurality of contact fingers, and a coil. The coil is arranged adjacent to the repelling portion to induce eddy currents therein, the coil and the fixed electrode being arranged on the same side of the movable electrode, and the repelling portion being movable relative to the coil. The coil has a first dimension between two of its opposite lateral ends and defines an area which corresponds to a majority of a surface area of the repelling portion. The repelling portion provides a continuous current path, having a dimension corresponding to the first dimension, for eddy currents induced by the coil, whereby the movable electrode is pivotally thrown in a direction away from the coil and the fixed electrode, thus providing a circuit trip.

Abstract: An electrical switchgear for fast limitation and interruption of fault currents. The electrical switchgear which includes a plurality of contact fingers arranged to divide current flowing through the electrical switchgear.

Abstract: A drive system is disclosed for operating an electric device. The drive system includes an electric motor having a permanent magnet rotor connectable to the electric device for controlling the operation of it by a limited-angle rotation, the electric motor further including a stator winding. The drive system includes a drive circuit connected to the stator winding. The permanent magnet rotor can be arranged to be aligned to a magnetic field created by the stator winding when supplied with current from the drive circuit, so that a maximum torque can be applied to the rotor and thereby to the movable part within an interval of ±25 degrees around a middle position between two end positions of the limited-angle rotation of the rotor.