1、 Overview-CE intelligent Ethernet communication electric meter

With the rapid development of intelligent energy management and industrial Internet of Things (IIoT), smart meters with Ethernet communication capabilities have become the core components of modern energy monitoring systems. CE certified Ethernet communication meters not only meet the strict electrical safety and electromagnetic compatibility requirements of the European Union, but also enable real-time data collection, remote monitoring, and energy efficiency analysis through high-speed networks. They are widely used in industrial automation, intelligent buildings, renewable energy, and other fields. This article will provide a detailed introduction to the key characteristics, technical specifications, and certification standards of this type of electricity meter, providing selection references for system integrators and end users.

2、 Typical application scenarios-CE intelligent Ethernet communication electric meter

Industrial power monitoring (factory, data center distribution system)

Commercial Building Energy Management (Building Automation, Smart Meter Collection)

Renewable energy systems (photovoltaic power plants, energy storage systems, energy metering)

Smart grid (distribution automation, remote meter reading)

3、 Technical parameters

The LCD screen should be intuitive and clear: the text display should be clear and easy to distinguish, presented in simplified Chinese characters or English, and the data display should strictly follow the national legal measurement units;

Complete measurement function for all electrical parameters: covering key indicators such as U (voltage), I (current), P (active power), Q (reactive power), S (apparent power), PF (power factor), F (frequency), etc;

Support bidirectional metering: both active and reactive energy can be accurately measured, and equipped with active and reactive pulse output functions;

The four quadrant energy and complex rate measurement function is powerful: reactive energy, apparent energy, and complex rate measurement support historical data traceability for 12 months. It can flexibly set four time zones, 14 time periods, and four rates (peak, off peak, off peak, and off peak) to meet diverse needs;

Real time and accurate demand monitoring: real-time demand for three-phase current, active power, reactive power, and apparent powermaximumThe demand (including timestamp) is clear at a glance;

Upgrade of power quality analysis function: precise measurement of voltage and current imbalance, phase angle between voltage and current, 2-63rd harmonic content, odd even harmonic content, and total harmonic content;

The historical data storage function is stable and reliable: the intelligent multifunctional meter has the ability to store historical electricity data, historical operation data, and historical alarms. The historical electricity data is saved at a scheduled time every day (default is 00:00 every day), and can be adjusted to be recorded every hour, every 15 minutes, or every 30 minutes according to demand. Historical alarms are stored in real-time, with a minimum of 100 records. Data storage is secure and reliable, and will not be lost or damaged due to on-site erroneous operations or monitoring commands. After the working power supply loses power, various historical data and set parameters are saved without loss. Historical data storage followsFirst out principle;

Complete event recording function: It can record the latest 128 event records, alarm records, and extreme value statistics (including current, line voltage, phase voltage, active power, reactive power, apparent power, power factor, frequency, current total harmonic, and voltage total harmonic extreme values for this month and last month, including timestamps);

The switch input/output functions are flexible and diverse: used to collect the opening and closing status of circuit breakers, circuit breaker fault status, support remote control switch opening and closing, alarm and other functions, and optional 4-20mA analog signal transmission to the background;

There are various communication methods to choose from, supporting Modbus RTU protocol or DL/T 645 (2007) protocol (with freeze function), and optional Ethernet communication, second RS485 communication, or wireless communication to meet the needs of different scenarios.

4、 Installation and wiring

4.1 External dimensions of electric meter

4.2 Wiring instructions for electric meters