Switching and control devices for power supply and distribution

摘要

The control and switching devices operate a measurement voltage dependent converter, whereby the current detectors are connected to each switching device (SG) via a cabling system. The current detectors are implemented as current and/or voltage sensors. Each current detector is connected to each switching device via a system plug (SSG) on the equipment side and a system plug holder (SAG) on the equipment side. The current detector (SE) contains a converter for supplying a measurement voltage which transfers a measurement voltage (UM) independent of the equipment to the switching device via a screened conductor (LV) with first and second cables (L1,L2). The measurement voltage is connected via the system plug and holder to a compensating resistance network (RN) to generate a limited equipment voltage (USG).