Application Description of Three phase Four wire LocalCost Control Intelligent Energy Meter. This energy meter is mainly suitable for0.4kV distribution transformers, substation gateway metering, and power datameasurement and metering for various enterprises, institutions, and generalindustrial and commercial users. It fully meets the technical, functional, andtype specifications of State Grid's intelligent energy meters, and has thecharacteristics of stable performance, complete functions, and stronganti-interference ability. By integrating power line carrier and low-powerwireless technology with the State Grid concentrator, remote meter reading canbe achieved; Utilize CPU card media to achieve local cost control functionality.

Product Features
1. Multiple communication interfaces
Equipped with standard RS-485 and infrared communicationinterfaces, it supports carrier/low-power wireless/NB/4G module access, and canflexibly adapt to different application scenarios.
2. Intelligent cost control and tiered electricitypricing
Support 2 sets of tiered electricity pricing schemes,with automatic switching of billing methods based on the"monthly/annual" billing cycle; Equipped with card based electricitypurchase control, remote power on/off and power protection functions, meetingdiverse charging management needs.
3. Real time operation monitoring
Real time measurement of voltage, current (includingneutral line), active/reactive power, power factor and other parameters, anddynamic monitoring of power consumption status.
4. Data storage and event recording
Support frozen storage of timed, daily, monthly,instantaneous, and hourly data; It can record the occurrence time and status ofprogramming, lid opening, power failure, timing, tripping and other events,permanently save and support alarm reporting.
5. High precision measurement capability
Realize precise measurement of positive/negative activepower energy (up to 4 decimal places), support time-sharing measurementfunction, and accurately distinguish peak, off peak, off peak, and off peakelectricity rates.