Siemens Aktiengesellschaft

Matthias Meier

Klaus Behringer

Peter Kaluza

Wolfgang Feil

Stefan Beyer

Andreas Fritsch

Annemarie Lehmeier

Josef Burger

Manfred Prölss

Paul Fröhlich

Konrad Spindler

Thomas Baer

Thomas Bär

Helmut Staufer

Gordon Schumann

Bernhard Neumann

A method is for connecting a capacitive load assembly to a DC grid. The load assembly is connectable to a supply potential of the DC grid by a control unit via a controllable switch element. The controllable switch element is periodically activated and deactivated by the control unit. The level of the current pulses flowing through the controllable switch element during the respective activation phase of the controllable switch element is detected by means of a current measuring device. The development of the level of at least two current pulses immediately following one another over time is evaluated by the control unit. The controllable switch element is additionally periodically activated and deactivated by the control unit if a specified change in the development of the level of the at least two current pulses immediately following one another over time is ascertained.

Method and device for connecting a capacitive load assembly to a DC grid

An overcurrent protection device is for protecting a load arranged in a DC grid. The load is coupled to a supply busbar, which is connectable to a supply potential of the DC grid, in the DC grid via the overcurrent protection device. The overcurrent protection device is designed to ascertain a current trigger value based upon a detected value of a current flowing through the overcurrent protection device and a trigger characteristic which is assigned to the load and is based on the current; compare the current trigger value with a threshold, and either trigger the overcurrent protection device or not, based upon the result of the comparison. The current is taken into consideration together with a first or a second factor in the trigger characteristic based upon the current direction.

Overcurrent protection device for protecting a consumer arranged in a DC grid

In accordance with 37 C.F.R. § 1.125, a substitute specification has been included in lieu of substitute paragraphs in connection with the present Preliminary Amendment. The substitute specification is submitted in clean form, attached hereto, and is accompanied by a marked-up version showing the changes made to the original specification. The changes have been made in an effort to place the specification in better form for U.S. practice. No new matter has been added by these changes to the specification. Further, the substitute specification includes paragraph numbers to facilitate amendment practice as requested by the U.S. Patent and Trademark Office.

Measuring assembly for detecting a direct current

A communication system and method are disclosed for serially transmitting data in automation systems. In at least one embodiment, the system includes a base module as the system master, a plurality of extension modules as the slaves and a bidirectional communication connection that serially connects the base module to the extension modules. A status as group master for the serially subsequent extension module is allocated to at least two of the extension modules, the base module communicating with the extension modules depending on said allocation.

Group master communication system and method for serially transmitting data in automation systems

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Poppenricht, Germany

Matthias Meier