Three-phase four-wire smart electricity meter

DTZ566 is a *** three-phase four-wire smart energy meter developed and manufactured by Henan XJ Metering Co., Ltd.:

Hardware Composition

It consists of a measurement unit, data processing unit, communication unit, etc.

Functional Features

1. Rich metering functions: It can measure active energy, reactive energy, forward active energy, reverse active energy, forward reactive energy, reverse reactive energy, four-quadrant reactive energy, etc. It also features time-of-use metering, supporting multi-rate metering based on peak, high, normal, and off-peak periods.

2. Comprehensive measurement parameters: It can monitor real-time phase voltages, currents, as well as three-phase total and individual phase active power, reactive power, power factor, phase angle, phase, and other operational parameters.

3. Powerful data storage: It can store monthly energy data for up to 13 months, hourly energy data for the past 48 hours, and voltage, current, forward/reverse active/reactive energy data at 5-minute intervals.

4. Comprehensive anti-tampering functions: It includes features such as cover opening records, terminal cover opening records, voltage qualification rate and loss of voltage records, loss of current and phase failure records, current imbalance records, power failure records, etc. It can also record reverse energy as forward energy and provides reverse phase sequence alarms.

5. Flexible display modes: It uses an LCD display with both automatic cycling display and button-triggered display modes. Display content and duration are configurable.

6. Diverse communication interfaces: It features dual RS485 communication ports, supports the DL/T645-2007 multifunctional energy meter communication protocol, and allows for meter reading via handheld infrared readers.

Technical Parameters

Accuracy class: active energy reaches 0.5S or 1.0S, reactive energy is class 2.0; rated current for transformer connection is 1.5(6)A, while direct connection models include 5(20)A, 10(40)A, 20(80)A, and other specifications; reference voltages include 57.7V, 100V, 220V, 380V, etc.

Scope of Application

Primarily suitable for electrical equipment with load power above 60KW, such as workshops and factories with air conditioners, motors, or lathes, as well as factories with loads above 100KW and any load, and the high-voltage side of high-voltage transformers.