How to Choose an Active Power Transducer?
When purchasing an active power transducer , you should fully consider your application's requirements. Here are a few common factors to consider: Power Measurement Type Single-Phase or Three-Phase: Choose based on your power system's power load. Balanced vs. Unbalanced Load: For unbalanced loads, you may need a sensor with per-phase measurement capabilities. True RMS or Average Response: For distorted waveforms (e.g., from VFDs, UPSs, inverters), choose a true RMS or DSP-based device. Electrical Parameters Voltage Range: Check if the sensor supports standard system voltages (e.g., 120V, 230V, 400V, etc.). Current Range: Determine whether you will be measuring directly or through a CT (current transformer). Select the input range accordingly (e.g., 0-5A, 0-1A). Frequency: Ensure compatibility with your system frequency (50Hz, 60Hz, or variable frequency in inverter-driven systems). single phase active power sensor Accuracy and Performance Accuracy: Typically ±0.2% to ±1%, depen...