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No. 253 Yulu Road, Jiading District, Shanghai
Ankerui Electric Co., Ltd
No. 253 Yulu Road, Jiading District, Shanghai
In the field of power monitoring and energy management, accurate measurement, flexible transmission, and intelligent operation and maintenance have become the core requirements for industry development. Recently, 11 provinces and cities across the country officially abolished fixed time of use electricity prices, ushering in fundamental changes in the electricity market. Faced with a new electricity billing model, countless business owners are inevitably worried - when the fixed period of "peak valley flat" is broken and electricity prices fluctuate in real time like the pulse of the market, how should factory electricity costs be controlled? During the peak of photovoltaic power generation, electricity prices may hit a new low, and during peak load periods, electricity prices may double and rise again. At this moment, "extensive electricity consumption" will directly erode corporate profits. With its convenient installation design, it has become a stable and reliable intelligent monitoring terminal for various power consumption scenarios.
1、 Sub item measurement in industrial parks
In response to the independent electricity metering and cost accounting needs of various factories and production lines in large industrial parks, ADW300A can upload real-time electricity data from monitoring points to the park's energy management platform through 4G wireless communication. Operation and maintenance personnel do not need to frequently go to the site to grasp the electricity consumption status of each area, timely detect abnormal electricity consumption, and achieve refined energy management.

2、 Product Overview
Ankerui ADW300A is a three-phase wireless energy metering instrument for low-voltage distribution networks, characterized by its compact size, high measurement accuracy, and complete functions. The instrument supports RS485 wired communication and is compatible with various wireless communication methods such as LoRa, LoRaWAN, 4G, WiFi, Bluetooth, etc. It can flexibly select external transformers, greatly improving the adaptability of on-site construction and installation.
Whether it is integrated installation inside the distribution box, or sub item energy metering, operation and maintenance supervision, power monitoring and other scenarios, ADW300A can stably adapt and operate reliably.
3、 Product advantages
Power freezing function: supports a 15 minute demand cycle
Adjustable demand cycle: The default demand cycle is 15 minutes (supporting options of 15, 30, 45, and 60 minutes).
Adjustable slip time: The slip time defaults to 1 minute (supports options of 1, 2, 3, and 5 minutes).
Capable of measuring 8 types of high demand and real-time demand, including forward active power, reverse active power, apparent power, A B C three-phase current, inductive reactive power, capacitive reactive power to high demand, and the time it takes for high demand to occur.
Typical application scenario: car charging station
In the past, charging station projects often required higher frequency electricity data to complete time of use billing and load analysis. The minute freezing function of ADW300A precisely fills this need, making the origin and origin of each kilowatt hour of electricity clear and traceable.
In addition, it also supports daily freezing (730 records) and monthly freezing (36 records) to meet the needs of data statistics and traceability for different periods.
Rich communication methods:
Wired communication: RS485 interface, supporting MODBUS-RTU, DL/T645-07 protocol.
Wireless communication (multiple options): Lora/LoraWAN: supports 470MHz, 868MHz, 915MHz and other frequency bands, with an open transmission distance of 1km. 4G/WiFi: supports power outage reporting, remote debugging, and breakpoint continuation (up to 7000 breakpoint data).
Bluetooth function: With just one mobile phone, you can complete parameter configuration, data reading, rate setting and other operations through the app. No need to debug through 485 cable
Protocol flexibility: 4G/WiFi supports multiple network protocols such as MQTT, HTTP, TCP/IP transparent transmission, etc.
Button interface optimization:
The electricity meter has also been optimized in human-computer interaction, with commonly used functions integrated into the meter buttons, such as viewing parameters, switching display content, manually triggering freezing, etc. The on-site operation is more convenient and no longer relies on external tools.
4、 Installation diagram

Industrial park sub metering three-phase IoT energy meter
Industrial park sub metering three-phase IoT energy meter