Siemens Industry’s MD Model Power Meter is a submetering device designed to provide real time, accurate electricity metering to enable proper control over energy costs. The meter can capture kWh/kW energy and demand data, as well as virtually all relevant energy parameters for diagnostics and monitoring on three-phase or single-phase circuit installations. The meter’s flexibility, size, and ease-of use make them ideal tools for gathering detailed consumption information in commercial, industrial, governmental, and retail environments.
The meter uses direct connections to each phase of the voltage and various interchangeable current transformer (CT) options such as split-core CTs or flexible Rogowski Coils (for large loads or large cables and bussbars) to monitor current on each phase. All of Siemens’ current transformers are internally shunted for intrinsically safe operation on energized conductors. The power meter makes over 50 total electrical measurements which are derived from the voltage and current inputs. Electrical load diagnostic parameters such as power factor (both Apparent and Displacement) and line frequency are captured in addition to energy and demand values.