The invention relates to a merging unit (100), particularly for substation automation, comprising at least one input interface (110a, 110b) for receiving input data (ID) characterizing at least one voltage and/or current related to a component of a power s...

The subscriber module (T1) has a base module (8) and an attachment (9). The attachment is connected with the sensor module (11). The attachment and the base module are in master-slave relationship with regard to each other. The attachment is the master, an...

The actuator (12a,12b,12c) comprises a load detecting device (22) for detecting the load of a consumer load (10a,10b,10c,10d) measurement. A communication interface (16) is provided for receiving a manipulated variable. The communication interface is also ...

The method involves executing control commands on an electrical conductor (2) in a voltage-coded manner in a negative half-wave for controlling a main station (HS) by a substation (NS), where the main station is connected to the substation over the conduct...

An improved communication and control architecture for a secondary power distribution assembly (2) comprises common dual serial data buses (10,12) that connect corresponding control processor modules (4,6) directly to associated solidstate power controller...

The system has a central rectifier unit (2) supplied with alternating voltage (9), at least one operating device (1-1'') for light sources (5-5'') and an external d.c. bus that supplies the at least one operating device for light sources with voltage start...

The method involves monitoring the emergency lighting (3,4) in a tunnel with a controller of a tunnel safety lighting system consisting of a tunnel monitoring center (1) and emergency lighting equipment (2), which can operate autonomously at least for a ti...