Three-phase IoT electricity meter(Type DTZY2397)

Product Selection Table

Product Overview

DTZY2397 three-phase four wire charge control intelligent electricity meter (three-phase Internet of Things electricity meter) is a new generation of intelligent high-tech remote energy metering products.It is based on MCU+metering chip technology, adopts ultra large scale digital signal processing chip, and is designed and manufactured according to relevant international (IEC) standards of electric energy meters and China's electric power standards, supplemented by LoRaWAN/NB-IoT/Cat.1/Bluetooth wireless communication modules solve communication distance and networking problems.It has high precision, low power consumption, good stability, and can realize the modernization of distribution management without complex wiring. The important part can be widely used in the measurement of three-phase AC power in cities, rural areas, factories and enterprises.

Functions and features

1.The function of measuring positive active, negative active electric energy and ABC split phase active electric energy.It can measure, store and display the operating parameters and status of the current watt hour meter, such as ABC phase voltage, current, total and three-phase active power, total and three-phase power factor, frequency, etc.It has overload protection function.

2.Remote power off and transmission function: send power off command through RS485 and other communication interfaces to cut off the user's load circuit;Or send the power transmission command to connect the user load circuit.

3.There are two sets of rates (peak, peak, flat, valley) and time periods that can be programmed arbitrarily, and another set of rates and time periods can be used at the set time point.At least 2 time zones can be set for each set of rate period throughout the year;At least 14 periods can be set within 24 hours;The minimum interval between periods is 15 minutes;The time period can be set across zero points.

4.Active upload/two-way transparent transmission function: actively transmit data to the corresponding platform via LoRaWAN/NB IoT/Cat. 1/Bluetooth (optional) wireless network, with a default interval of 4 hours (configurable).

5.It complies with the international standards IEC 《62053-21 Electricity metering equipment - Particular requirements - Part 21: Static meters for AC active energy (classes 0,5, 1 and 2)》, IEC 62052-11《Electricity metering equipment - General requirements, tests and test conditions - Part 11: Metering equipment》, etc., and the communication protocol complies with DL/T645-2007 《Communication Protocol for Multifunctional Electric Energy Meters》.

Specifications & technical parameters

Display Description

The meter is fully displayed after power on, and then the wheel displays the total active energy kWh and total power kW

Wiring diagram

Functional terminal wiring diagram

Figure 7 Function Terminal Wiring Diagram

· This wiring diagram is a universal version. (NC) tripping normally closed, (N) tripping common and (NO) tripping normally open are used for mutual inductance meters and external meters.

· The (T+/T -) second pulse terminal is used for meters with clock function.

· (A/B) 485 output terminal.

· Terminal 16 P is the active pulse output terminal, terminal 17 Q is the reactive pulse output terminal (for the reactive meter), and terminal 18 is the common ground.

Three phase four wire connection diagram through current transformer

Fig. 8 Connection diagram of transformer

· The left side is the power supply side, and the right side is the load side.

Three phase four wire straight through wiring diagram

Figure 9 Wiring Diagram of Through Access Type

· The left side is the power supply side, and the right side is the load side.

Overall dimension

L * W * H: 218mm × 143 mm × 70 mm