Sr. Customer Application Support

Key Skills

• set: Strong Understanding of Electrical Measurement Principles: Fundamentals of AC power measurement (single‑phase & three‑phase) RMS calculations for voltage, current, power & energy Concepts of active, reactive, apparent power Power factor measurement (displacement & distortion PF) CT/PT interfacing, burden selection, linearity, and phase‑angle correction Anti‑tamper metering concepts (neutral disturbance, magnetic tamper, bypass detection) Expertise in Metrology Algorithms Implementation of sampling , digital filtering , and signal conditioning Frequency tracking & phase‑locked loop (PLL) algorithms Compensation techniques for: Gain & offset errors Phase angle errors Temperature drift Energy calculation algorithms (block processing, time‑division sampling, etc.) Low‑signal detection, creep handling, and start‑up threshold logic ADC & Sensor Interface Knowledge Experience with Σ‑Δ (Sigma‑Delta) ADCs , multi‑channel high‑resolution converters Understanding sampling rate, aliasing, ENOB, quantization noise Design and calibration of current sensors : Shunts CTs Rogowski coils Hall sensors Noise isolation, grounding, and analog front‑end design DLMS/COSEM Knowledge (for Smart Meters) While metrology is separate from DLMS, a metrology engineer should understand how measured parameters map to communication standards: OBIS code mapping for power & energy registers COSEM interface objects related to billing, load profiles, events Security suites (Suite 0 / Suite 1 / Suite 2) Interoperability testing with HES/MDM DLMS data structures for profile capture & metering blocks Calibration & Accuracy Testing Hands‑on experience with meter test benches (ZERA, Radian, Secure, L&T) Multi‑point calibration techniques: Voltage, current, phase angle, power factor Accuracy standards: IS 16444 (Smart Meters) IS 15959 (DLMS) IEC 62053‑21/22/23 Endurance, creep, tamper, harmonic, and influence quantity testing More information about NXP in India... #LI-29f4