The Three Phase Four Wire Smart Meter is an advanced metering device designed to measure electrical consumption in industrial, commercial, and residential settings. This smart meter offers high precision and can accurately measure three-phase electricity consumption, providing real-time data on power usage, voltage, current, and energy efficiency. It is equipped with a four-wire configuration, making it suitable for balanced load systems, and it supports remote monitoring and data collection through integrated communication modules.
With the growing demand for energy management and sustainability, this smart meter plays a crucial role in optimizing power consumption, reducing costs, and improving overall energy efficiency. Its user-friendly interface and reliable performance make it an essential tool for modern energy management systems.
Zhejiang Reallin Electron Co., LTD was founded in 2005. is a specialized high-tech enterprise gathering the research and development. As well as production,sales and provide good service for its products which are including all kinds of Grid Electricity Meters,EV charging Meters, AMI Solutions,Smart Sensors and IOT platform.
Factory area is about 19,000 square meter, has more than 400 employees, including professional and technical personnel more than 150 people.
The company input a series of high tech automatic machine & intelligent Equipments (automatic production lines, intelligent warehousing and so on),The production capacity is around 3.5 million single phase meters and 2 million three phase meters annually.
What is a three-phase four-wire smart meter?
A three-phase four-wire smart meter is a smart meter used to measure active and reactive energy in a three-phase AC circuit. It can provide 380V and 220V voltages through three phase lines and one neutral line, and is suitable for low-voltage distribution networks.
What is the difference between a three-phase four-wire smart meter and an ordinary meter?
In terms of function, in addition to measuring electricity, a three-phase four-wire smart meter also has functions such as remote meter reading, fee control, data communication, and electricity consumption analysis. Ordinary meters generally only have basic energy metering functions. In terms of accuracy, smart meters have higher accuracy, usually reaching 0.5S level, 0.2S level, etc., while ordinary meters are mostly level 1 or level 2. In terms of communication capabilities, smart meters can communicate through RS-485, 4G, NB-IoT, etc., while ordinary meters generally have no communication functions.
What are the main functions of a three-phase four-wire smart meter?
It has accurate energy metering function, can measure active energy and reactive energy, and supports peak and valley time-sharing metering, forward and reverse metering, etc. It can realize remote fee control, communicate with remote management system, remote meter reading, electricity fee calculation, power outage for arrears and power restoration for payment. It has data communication function, built-in multiple communication modules, and can communicate with remote system in real time. It also has safety protection functions, such as overvoltage, overcurrent, lightning protection, etc.
How to prevent power theft with three-phase four-wire smart meter?
It can automatically record events such as loss of voltage, loss of current, phase failure, power failure, voltage reverse phase sequence, etc. If the voltage wiring is illegally removed or cut off, the current wiring is short-circuited, etc., the loss of electricity can be calculated by recording the start and end time. It has the function of opening the cover to prevent illegal changes to the circuit; there is a current imbalance record to alert users to intercept the electricity in the front section of the meter wiring; it can realize the reverse electricity into the forward electricity, and the user cannot steal electricity even if the current line is reversed.
What are the accuracy levels of three-phase four-wire smart meters?
Common ones include 0.2S, 0.5S, 1, 2, etc.
What are the voltage and current specifications?
The rated voltage is commonly 3×220/380V, 3×57.7/100V, etc.; the rated current is 3×1.5 (6) A, 3×5 (20) A, 3×10 (40) A, 3×15 (60) A, 3×20 (60) A, 3×30 (100) A, etc.
What are the access methods for three-phase four-wire smart meters?
There are two types of access: direct access and access via transformer. The direct access type is suitable for circuits with small load currents; the access via transformer is suitable for circuits with large load currents, and the large current is converted into a small current for measurement through the current transformer.
How to read the reading of a three-phase four-wire smart meter?
For direct-entry meters, the reading can be read directly. If the meter is connected via a current transformer, the reading on the meter must be multiplied by the multiplier of the current transformer. If there is a voltage transformer, it should also be multiplied by the transformation ratio of the voltage transformer to obtain the actual amount of electricity consumed by the user.
