Abstract: A method for evaluating energy consumption in an industrial plant, includes capturing sensor data from at least one level of the industrial plant, from the sensor data, digitally obtaining energy consumption curves, an energy consumption curve representing, along a certain time period, discrete values of energy consumption corresponding to time intervals ?t.

Abstract: A method for evaluating energy consumption in an industrial plant, includes capturing sensor data from at least one level of the industrial plant, from the sensor data, digitally obtaining energy consumption curves, an energy consumption curve representing, along a certain time period, discrete values of energy consumption corresponding to time intervals ?t.

Abstract: A safety open and closing system for an overpressure door on fuselage of an aircraft. Wherein the safety opening and closing system allows safe access through the overpressure door to the compartment. The safety open and closing system including an assembly of a hollow beam, a blocking bar in the hollow beam, a spring biasing the blocking bar with respect to the hollow beam and a lever at the end of the blocking beam which pivots between a position A that allows closure of the overpressure door and a position B preventing closure of the door.

Abstract: A safety open and closing system for an overpressure door on fuselage of an aircraft. Wherein the safety opening and closing system allows safe access through the overpressure door to the compartment. The safety open and closing system including an assembly of a hollow beam, a blocking bar in the hollow beam, a spring biasing the blocking bar with respect to the hollow beam and a lever at the end of the blocking beam which pivots between a position A that allows closure of the overpressure door and a position B preventing closure of the door.

Abstract: A frequency converter circuit has at least two outputs that are respectively connected to a load, in particular an induction coil. A first output is operated at a first switching frequency and a second output is simultaneously operated at a second switching frequency that is different from the first, in such a way that noise having a frequency generated by the superposition of the first switching frequency and the second switching frequency is produced. The frequency converter circuit is operated in such a way that the frequency of the noise is lower than a first cutoff frequency and/or is higher than a second cutoff frequency.

Abstract: The present invention relates to a Parking brake (1) which is connected to at least two brake cables (60), in particular for a parking brake system of motor vehicles, comprising: an actuator (30; 130) with linking means to which the at least two break cables (60) are coupled at linking places and an operation means (5, 10) configured and connected to the actuator (30; 130) such that it can change the distance between the linking places in a controlled manner whereby a relative movement of the linking places to each other or away from each other is enabled. Preferably, the parking brake (1) comprises a set of gears (10) and an electric motor (5) for generating and transmitting a rotation wherein the rotation is transformed into a linear movement by means of an actuator (30; 130). The parking brake (1) according to the invention assures a uniform operation of the respective brakes and a comfortable control with reduced efforts for adjustment and maintenance.