We are seeking a highly skilled Application Engineer with strong expertise in energy metering technologies, including developing metrology (single & three phase) , DLMS/COSEM protocol, and energy meter hardware architecture.EducationBachelor’s degree in electrical engineering, Electronics, Instrumentation, or related fields. Master’s degree is a plus.Key Skill set:Strong Understanding of Electrical Measurement Principles:Fundamentals of AC power measurement (single‑phase & three‑phase)RMS calculations for voltage, current, power & energyConcepts of active, reactive, apparent powerPower factor measurement (displacement & distortion PF)CT/PT interfacing, burden selection, linearity, and phase‑angle correctionAnti‑tamper metering concepts (neutral disturbance, magnetic tamper, bypass detection)Expertise in Metrology AlgorithmsImplementation of sampling, digital filtering, and signal conditioningFrequency tracking & phase‑locked loop (PLL) algorithmsCompensation techniques for:Gain & offset errorsPhase angle errorsTemperature driftEnergy calculation algorithms (block processing, time‑division sampling, etc.)Low‑signal detection, creep handling, and start‑up threshold logicADC & Sensor Interface KnowledgeExperience with Σ‑Δ (Sigma‑Delta) ADCs, multi‑channel high‑resolution convertersUnderstanding sampling rate, aliasing, ENOB, quantization noiseDesign and calibration of current sensors:ShuntsCTsRogowski coilsHall sensorsNoise isolation, grounding, and analog front‑end designDLMS/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 registersCOSEM interface objects related to billing, load profiles, eventsSecurity suites (Suite 0 / Suite 1 / Suite 2)Interoperability testing with HES/MDMDLMS data structures for profile capture & metering blocksCalibration & Accuracy TestingHands‑on experience with meter test benches (ZERA, Radian, Secure, L&T)Multi‑point calibration techniques:Voltage, current, phase angle, power factorAccuracy standards:IS 16444 (Smart Meters)IS 15959 (DLMS)IEC 62053‑21/22/23Endurance, creep, tamper, harmonic, and influence quantity testing
Job Title
Customer Application Support