An current transducer is a specialized device designed to accurately measure alternating electrical quantities (like current or voltage) and convert them into standardized, processable signals. Its working principle is based on precision signal acquisition and linear conversion. It first samples the raw AC input (e.g., a 0-5A current from a CT or a 0-120V voltage). This AC signal is then conditioned through steps like isolation, filtering, and amplification. Finally, it undergoes True RMS (Root Mean Square) calculation and linear conversion to produce a stable, standardized DC output signal, most commonly a 4-20 mA analog signal or a digital value.
Product Features
1. True RMS Measurement: It provides true RMS value conversion, ensuring accurate measurement of non-linear or distorted AC waveforms, which is crucial for modern power systems with harmonic interference.
2. Advanced Signal Processing: The built-in signal conditioning effectively suppresses transient interference and noise, enhancing the stability and reliability of the output signal for control systems.
3. Electrical Isolation and High Accuracy: It offers galvanic isolation between the input and output, protecting downstream equipment. High-precision components and calibration ensure minimal measurement error, typically with accuracy classes of 0.2% or 0.5%.
Common Applications
AC transmitters are fundamental in power monitoring, industrial control, and energy management systems:
1. Power Monitoring Systems: Used in switchgear, distribution cabinets, and intelligent buildings for precise measurement of AC current, voltage, and power parameters.
2. Industrial Process Control: Providing reliable feedback signals for motor control centers (MCCs), variable frequency drives, and automation systems.
3. Renewable Energy Systems: Monitoring AC-side electrical parameters in solar inverters and wind power generation systems.
