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LVDC Solution 5~1000VDC Bidirectional DC Meters with RS485 Modbus

Pulished on May. 03, 2022

In the past ten years, the use of new energy, the requirements for energy conservation and consumption reduction, and the development of technology have prompted us to re-examine the research on DC power distribution technology, application, and standards.


The new generation of low-voltage DC power supply system is a green, high-efficiency, and shared IoT power supply system that integrates generation, storage, and use of a full-DC ecosystem and a DC bus that uses AC power rectified to power full-DC loads.

The integrated full DC ecological operation mode of power generation, storage and use-The new generation of low-voltage DC power supply system is a full-DC ecosystem that integrates generation, storage, and consumption, consisting of distributed renewable energy sources (such as photovoltaic power generation), DC power supply and consumption networks, energy storage devices, and DC loads.


DC power supply operation mode supported by AC power supply-In addition to the full DC ecological operation mode, the new-generation low-voltage DC power supply system also includes application scenarios where renewable energy is limited and DC load demand is large. In this scenario, an AC/DC converter is required as the power supply, and then the DC link is connected to the DC via the common DC bus. The load is powered directly.


A new generation of low-voltage DC power supply + IoT advantages

The new generation of low-voltage DC power distribution system is a new type of power supply system formed by the deep integration of power supply technology and Internet of Things technology. Features are as follows: "plug and play" of distributed renewable energy and DC load terminals; intelligent interaction of DC power equipment, flexible energy management; improved user perception ability, rapid response to changes in user needs; user-friendly power consumption and supply and demand interaction Increased engagement and satisfaction in the process. Integrate new energy DC power supply system and Internet of Things technology to create an intelligent DC power supply and consumption ecosystem: from "providing high-quality and reliable power supply" to "safe, reliable, efficient, green, and smart power consumption".


Typical application scenarios of low-voltage DC power supply systems

The new generation of low-voltage DC power distribution system is widely used in new energy DC power generation, energy storage; industrial customers with special requirements; digital and computer centers; communication base stations; smart cities (buildings, municipalities; public facilities); smart homes; Sea, land and air); micro-grid field.


In order to adapt to the development trend of new energy and the development of DC power distribution, IVY has launched four DC energy meters, the main features are as follows:

1.There are 4 models of DC meter: EM613001/EM613002/EM619001/EM613005. It's worth to highlight that RS485 & NB-IOT communication are optional.

2.EM series DC energy meters are designed for bi-directional measuring and monitoring in DC systems.

3.The din rail DC energy meters can measure of important DC parameters: Voltage, current, power and energy etc. It also support bi-directional measurement. All data in the meter are accessible via RS485 using Modbus RTU/DTL645.

4.The meter working with DC power supply. Input voltage range up to 1000VDC, and current inputs are flexible with DC shunt.

5.The multi-tariff version has a RTC equipped inside, it can provides multi-tariff information and monthly records.

6.EM series dc meter is designed for scenarios such as DC panel, battery storage system, solar photovoltaic system, EV charging pile and telecom base stations.


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