Design

Acrel ADW300 Wireless Smart Three Phase Power Meter
https://www.acrel-electric.ke/products/acrel-adw300-iot-power-consumption-meter/


Communication Methods: 4G LTE, WiFi, LoRa, LoRaWAN, NB-IoT, RS485
Communication Protocol: MQTT, MODBUS-RTU, MODBUS-TCP
Measurement: 3-phase Active Power, Reactive Power, Current, Voltage, Harmonic and etc.
Application Scenario: Building, Factory, Smart Grids, DB Room and etc
Rated Voltage: Up to 3x660~792Vac L-L
Rated Current: 3x1(6)A AC (via CTs)
HMI Programming: Setting of CT/PT Ratio, Phase Wiring, Communication and etc
Standard&Certificate: CE; IEC; LVD

Features of Acrel ADW300 Wireless Smart Three Phase Power Meter
ADW 300 wireless energy meters have multiple built-in communication modules designed for different situations when paired with IoT energy management systems or other demands for remote connection.

Meanwhile, ADW300 can provide various extraction function modules and various electrical parameter measurements to meet different requests from customers. Also, as proof of quality, ADW300 is strictly compliant with the standard of IEC 62052-11; IEC62053-22; LVD.

Noted: If you have any special requirements, for example, another bandwidth and communication solution or special power supply and size, please feel free to Contact Us.
Three-phase voltage, current, frequency power, total power (active, reactive, apparent) Voltage and current phase angle, voltage, and current imbalance
Voltage, current total harmonic, and 2-31st harmonic.
Record of extreme values of voltage, current, and power in the current month and last month.
Maximum current, power demand, and real-time current, power demand.

Specifications of Acrel ADW 300 IoT Power Meter
1. Function Overview
Function Description
Measurement（Standard） Three-phase AC kWh, kVarh, Active Power, Reactive Power,Quadrant Reactive Power Energy, Current, Voltage, Voltage&Current Unbalance, Power Factor, Apparant Power, Frequency, Harmonic (2~31st&THD)
Measurement (Optional) Temperature Measurement:4-channel (A,B,C,N) Cable Temperature Monitoring;  Thermistor:NTC;  Range: -40~+99℃;  Accuracy:±2℃
Residual Current Measurement: 1-channel Residual Current Monitoring (Need to be paired with Residual Current Transformers)
Communication (Standard) RS485 Port with Modbus-RTU protocol -  1 start bit,8 data bit,1 stop bit,no parity;  Baud Rate 1200~38400 bps etc.
Infrared Communication - Constant Baud Rate 1200 bps
Communication (Optional) 4G LTE - Normal Communicaiton Module Support: LTE-FDD: B1/B3/B5/B8;  LTE-TDD:B34/B38/B39/B40/B41
4G LTE - Global Communication Module Support: LTE-FDD:B1/B3/B5/B7/B8/B20/B28;  LTE-TDD:B38/B40/B41
WiFi - Support 2.4GHz or 5GHz
LoRaWAN
LoRa
NB-IoT
Display (Standard) LCD Display and LED Indicator
HMI (Standard) Keypads Programming: Setting of CT/PT Ratio, Communication, Phase Wiring and etc
Software (Standard) Adjustment Software: Setting of Data Upload Interval, WiFi configuration (Account&Password), Server Address, Port and etc
Alarm Function (Standard) Undervoltage, Overvoltage, Undercurrent, Overcurrent, Underload, Overload, Communication Disconnection and etc
I/O Function (Optional) 4-channel or 2-channel DI (Digital Input)
2-channel DO (Digital Output)

2. Main Parameters
Parameter Description&Value
Voltage Input Rated Voltage 3x380~456Vac L-L or 3x660~792Vac L-L (via direct connection)
3x100~120Vac L-L (via PTs)
Reference Frequency 45~65Hz
Power Consumption ＜0.5VA (each Phase)
Current Input Rated Current 3x1(6)A AC (via CTs)
Starting Current 1% Ib (Class 0.5); 4% Ib(Class 1)
Power Consumption ＜1VA (each Phase)
Phase Wiring 3P4W 3-phase 4-wire
3P3W 3-phase 3-wire
Auxiliary Power Supply Voltage Range 85~265Vac
Power Consumption ＜2W
Measurement Performance Standard IEC 62053-22:2003;  IEC 62053-21:2003
kWh Accuracy Class 0.5S
Pulse Width of Pulse 80±20ms
Pulse Constant 6400imp/kWh; 400imp/kWh

3. Environment
Condition Description&Value
Temperature Operating Temperature: -20℃～+55℃;  Storage Temperature: -40°C ~+70°C
Humidity ≤95%RH,no condensation,without corrosive gas
Altitude ≤ 2000m

Details of Acrel ADW300 Wireless Smart Three Phase OEM Power Meter
Multiple Communication Methods