Siemens Aktiengesellschaft

Martin Meinke

Werner Krämer

Klaus Behringer

Annemarie Lehmeier

Christoph Nöth

Peter Hauselt

Josef Kaser

Karl Niedermeier

Jens Ulrich

Roman Wunschik

A measuring system is disclosed for monitoring at least one phase of a system. A measuring module includes a signal acquisition module and a signal further processing module. The signal acquisition module is formed by an ASIC. A printed circuit board includes a voltage sensor and the signal acquisition module includes current sensors and a voltage sensor connection connected to the voltage sensor in an electrically conductive manner, for each phase to be monitored. The signal further processing module is connected to the signal acquisition module and can evaluate current and voltage values which have been determined. The signal further processing module includes, output devices which can be used to output serial data and digital signals for control purposes.

Measuring system for monitoring at least one phase of a system

In order to provide a bearing for an already prepositioned switching shaft, fitted with coupling levers, of a low-voltage circuit breaker in the region where the switching forces act, a bearing assembly is provided. The bearing assembly includes a bearing body which is mounted on the housing front wall of the switch pole, surrounding the switching shaft in the form of a half shell. The bearing body includes a subregion which projects between two coupling levers, which are at a distance from one another and are connected to a movable switching contact. It thus forms side guide surfaces for the coupling levers. Such a bearing assembly can be arranged in both the end regions of the switching shaft in multipole circuit breakers.

Actuator unit with at least two actuators and a secure control unit

The invention relates to a regulating device () for a motor, comprising a housing () which can be associated with said motor and in which a control unit () and an actuator () are arranged. Due to heat-related reasons, said device can only be used in an encapsulated manner, for example close to a motor. In order to solve this problem, the actuator () comprises an electromagnetic switching element () and the control signal () for the same is designed as a timing signal which is measured&#x2014;taking into consideration at least one heat source inside or optionally outside the housing ()&#x2014;in such a way that the operating temperature of the electromagnetic switching element () is below an upper authorised limiting value.

Regulating device for a motor

An actuator unit includes a base actuator and an additional actuator, via which a useful circuit can be opened and closed. Given proper functioning, the base actuator can be activated by supplying electric energy and deactivated by not supplying electric energy. The additional actuator can be deactivated by supplying electric energy and can be activated via manual operation. A control unit deactivates the additional actuator only when an actual activation state of the base actuator differs from a desired activation state of the base actuator.

Actuator unit with a base actuator an additional actuator and control unit

A rapid electrical connection system is made up of a mounting plate for securing form-coded flat cables, an intermediate carrier serving as a power socket and a device adapter which can be swiveled on, in particular a load feeder capable of communication, as the main components. The flat cable for the power connection and the flat cables for signal transmission and backup power supply, are all contacted by penetrative contacting. The electrical connection of the device adapter takes place during the swiveling-on action.

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Amberg, Germany

Martin Meinke