Electricity meter arrangement based on four-wire three-phase transformer meter

摘要

A device for connection of at least two current transformers (21,22) to a three-path three-phase meter (23) includes an adapter terminal block (20) with integrated two watt-meter circuit (25,26). The adapter terminal block is provided with a releasable terminal pin (A1.9,11) at the, or at each, meter-side terminal (1-9,11), and the adapter terminal block (20) has a short-circuit bridge (27) between two vacant current transformer terminals (4,6).