Abstract: A switch module includes at least one switch exhibiting at least two states of operation, provided for connecting at least two conductor segments of an electrical power supply network, the electrical power supply network including one or more power sources and one or more electrical loads. One control unit is provided per switch and is operatively coupled to the switch for controlling the states of operation of the switch. Each control unit includes a selection unit for selecting a state of operation of the switch coupled to the respective control unit. A method for operating such switch modules and an electric power supply network are also provided.

Abstract: A method is provided for predicting an impact of an aging behavior of a connector element, which simulates degradation states caused by aging of the connector element by means of at least one resistor element and a voltage source, as well as a computer program performing the method, a computer readable medium including the computer program, and a simulation model for simulating a degraded connector element.

Abstract: A roller-type apparatus for indicating a charge or load on a fixed axle comprises a roller rotatably mounted to the fixed axle, the charge or load being arranged to act on the peripheral surface of the roller. The axle is fixed at two spaced apart positions and the roller is rotatably supported on the axle at two spaced positions disposed adjacent the fixing positions of the axle and equally spaced relative to the center of the axle. At least one transmitter is coupled to the axle in the area between the spaced roller supporting positions for generating a signal in response to deflection of the axle under the influence of the charge or load. An indicating means is responsive to the signal for indicating the weight of the load, and the direction of weight of the load.

Abstract: Apparatus for attaching at least one weight sensing gauge to a vehicle supported by at least two spring assemblies such that the weight sensing gauge senses the forces transmitted to the spring assemblies, comprising a bracket secured to the vehicle chassis and at least one attachment means coupled to one end of the weight sensing gauge and pivotally mounted to the bracket. The other end of the weight sensing gauge is pivotally secured to the chassis of the vehicle via the bracket. The attachment means include first and second levers pivotally connected to each other, the first lever being coupled to the first spring assembly of the vehicle and the second lever being coupled to the second spring assembly of the vehicle for mechanically interpreting the forces applied to the spring assemblies and for transmitting the forces to the weight sensing gauge.