smart electricity meter

BM652smart electricity meterThis meter has a high cost performance ratio and can directly replace conventional power transmitters and measuring instruments. As an advanced intelligent and digital front-end acquisition component, this series of network instruments has been widely used in various control systems, SCADA systems, and energy management systems.

Multi functional network instruments in China include ACR120E, ACR220E, ACR220EL, ACR320E, ACR320EL from Shanghai ACREL, PD194-E4 from Jiangsu Sifei, PMAC503 from Zhuhai Pano, PMC-530A from Shenzhen Zhongdian Power, YFW from Qixunda Technology, QP650 from American Electrical Control, and PDM-803HE from Huatong Measurement and Control.

Taking ACR320E product from ACREL in Shanghai as an example, this article introduces the functions and technical parameters of ACR320E multifunctional network instrument.

LEDDisplay, full electrical parameter measurement (U, I, P, Q, PF, F); Four quadrant energy metering; 2DI+2DO； RS485 communication interface, Modbus protocol.

Applicable Environment

lWorking temperature: -10 ℃~+45 ℃

lStorage temperature: -25 ℃~+70 ℃

lRelative humidity: ≤ 95% without condensation

lAltitude: ≤ 2500m

Electromagnetic Compatibility

lElectrostatic anti-interference experimentⅢLevel (IEC61000-4-2)

lRadiation anti-interference testⅢLevel (IEC61000-4-3)

lElectrical Fast Transient Pulse Group Interference TestⅣLevel (IEC61000-4-4)

lSurge anti-interference testⅣLevel (IEC61000-4-5)

lRadio frequency conducted interference testⅢLevel (IEC61000-4-6)

lElectromagnetic field anti-interference testⅢLevel (IEC61000-4-8)

function

lCan directly connect signals from current and voltage transformers;

lThe PT/CT ratio can be set arbitrarily;

lThe instrument display can be set to scroll;

l I/OModular design of functions such as switch quantity, relay alarm output, 4-20mA analog quantity, etc;

lMultiple instruments can be set to different addresses;

lCan communicate with SCADA and PLC systems; Can communicate with various software in the industry (Intouch, Fix, Citec, Configuration Network, etc.);

l LEDOr blue screen backlit LCD display with high visibility;

lEasy to install, simple wiring, and small engineering quantity;

lThe instrument adopts a power-off protection circuit. In the event of a power loss, data storage is not lost, and the instrument continues to operate after the power is restored;

lFour quadrant energy metering, time-based billing, high demand recording, and 12-month energy statistics.

Application field

lEnergy Management System

lsubstation automation

lDistribution network automation

lResidential power monitoring

lIndustrial Automation

lSmart Building

lIntelligent distribution panel and switchgear

Technical Specifications

unetwork

Three phase three wire, three phase four wire

uaccuracy class

Current and voltage: 0.2 level,

Power and active energy: Level 0.5,

Frequency: 0.05Hz,

Reactive power: Level 1

uinput current

Rated values: AC1A, 5A

Overload: 1.2 times continuous, instantaneous 10 times/10 seconds

Power consumption:<0.2VA

Impedance:<0.1 Ω

uinput voltage

Rated values: AC100V, 400V

Overload: 1.2 times continuous, instantaneous 2 times/1 second

Power consumption:<0.2VA

Impedance:>200k Ω

uworking power supply

Working range AC85-270V

Frequency 50 ± 5Hz, 60 ± 5Hz

Power consumption<1W

upower frequency withstand voltage

2kV/1minEffective communication value

uDiscrete input

24 or 8 channels of dry contact input, built-in+5V power supply

uswitch output

Output mode: 2 or 4 relay normally open contact outputs

Contact capacity: AC 250V/3A, DC 30V/3A

upulse output

Output mode: Optocoupler pulse with open collector, 2-channel output

Pulse constant: 10000, 40000, 160000 imp/kWh

ucommunication

RS485interface

MODBUS-RTUagreement

Baud rates of 38400, 19200, 9600, 4800 can be set

Appearance and installation dimensions (mm)

Wiring test

Example

model:BM652smart electricity meter

Auxiliary power supply: AC/DC220V

Input signal: 380V 600A/5A 2DI/2DO

Power grid: three-phase four wire

Communication: RS485/Modbus RTU