Power quality analyzer

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Power quality analyzer

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Power quality analyzers are used to continuously monitor and analyze electricity lines for disturbance which can disrupt the reliable delivery of energy or cause damage to equipment plugged into the grid. Power quality disturbances include events such as voltage sags and swells, transients, harmonic distortion and voltage/current imbalance.

Design requirements

    Modern power quality analyzer designs require:

  • Current and voltage sensing of poly-phase electricity and revenue-grade energy measurement compliant with ANSI C12.20 and IEC-62053 standards.
  • Analysis of power quality metrics such as harmonic distortion.
  • Power supply design, digital input/output, real-time networking and wireless communications.

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Technical documentation

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Type Title Date
Application note Design for State Grid Corporation of China RS-485 Standard – THVD1500 30 Nov 2017
White paper Smart power opens door to more efficient electrical use 21 Mar 2016
Application note Supercapacitor Backup Power Supply w/ Current Limit for Smart Electricity Meter (Rev. A) 11 May 2022
Technical article Voltage supervisor requirements for e-meter applications PDF | HTML 10 Aug 2023
Technical article Analog interfacing for grid infrastructure with Sitara processors PDF | HTML 08 Aug 2023

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