Description
The 750-494/000-005 Power Measurement Module measures electrical data in a three-phase supply network.
AC/DC 277V; external shunts
The voltage is measured via network connection to L1, L2, L3 and N. The current of the three phases is fed to IL1, IL2, IL3 and IN via external shunts.
The module transmits metrics (e.g., reactive/apparent/effective power, energy consumption, power factor, phase angle, frequency, over-/undervoltage) directly into the process image, without requiring high computing power from the controller. Both comprehensive metrics and harmonic analysis up to the 41st harmonic permit extensive network analysis via the fieldbus. These metrics enable the operator to optimize supply to a drive or machine, protecting the system from damage and failure. The four-quadrant display indicates the load type (inductive, capacitive) and whether it is an energy consumer or producer.
Measuring current (max.): 1 … 20,000 A via ext. shunts (DIN 43703, DIN EN 60051 (50 … 300 mV))
Signal form: any periodic signals (taking the maximum frequency into account)
Measured values: Line-to-line voltage, power output, energy, power factors, mains frequency, harmonic analysis (up to the 41st harmonic), THD