Electricity metering module,HC-33AD three-phase power acquisition module

1、 Product Introduction

1.1Introduction

HC-33AD three-phase power acquisition moduleIt is highly integrated targetingMeasurement of three-phase electrical parametersApplied products, accurately measured using the three meter methodA-phase voltage, B-phase voltage, C-phase voltage, A-phase current, B-phase current, C-phase current,Total active power, total reactive power, total apparent power, total power factor, frequency,A-phase active power, B-phase active power, C-phase active power,Positive total active energy, negative total active energy, and electrical parameters，1roadRS-485communication interface，Current standard range0-5A， External precision transformers can also be used.

HC-33 series power collection moduleCan be widely applied toElectricity, communication, railway, transportation, environmental protectionIn industries such as petrochemicals and steel, used forMonitor the current and power consumption of large equipment driven by three-phase motors, as well as the measurement of three-phase electrical energy in distribution networks and enterprisesandmonitor.

1.2Features

Collect three-phase electrical parameters, includingA-phase voltage, B-phase voltage, C-phase voltage, A-phase current, B-phase current, C-phase current,Total active power, total reactive power, total apparent power, total power factor, frequency,A-phase active power, B-phase active power, C-phase active power,Positive total active energy, negative total active energy, etc16 electrical parameters, complete information

1.2.1.Using dedicated measurement chips and AC true effective value measurement method, the measurement accuracy is high

1.2.2.Communication protocol adopts standardsModbus RTU mode, good compatibility, easy programming

1.2.3.beltESD protection circuitRS-485 communication interface

1.2.4.Wide working voltageDC10～30V， And it has anti reverse protection function, connecting the reverse power supply will not damage the module;

1.2.5.Low power design, typical operating current（24V power supply) less than 10mA

1.2.6.Adopting industrial grade chips, built-in watchdog, and complete lightning protection and anti-interference measures to ensure reliability

1.2.7.High isolation voltage, using micro precision transformers for isolation and optoelectronic isolation, with a withstand voltage of up toDC2500V

1.2.8.Configurable real-time data update cycle, convenient for application to various measurement requirements

1.2.9.beltLEDIndicate the working status for easy on-site installation and debugging

1.2.10.35mmstandardDINRail installation, plug-in terminal wiring, convenient for on-site installation and wiring

1.3Technical Specifications

1.3.1Three phase AC input

1)Input frequency: power frequency,45~65Hz; 50V optional

2)Voltage range (phase voltage):70V、120V、260V、450V

3)Current range:5A、1A、 Terminal input type, external transformers 100A, 200A, 500A, etc. are optional;

4)Signal processing:Using specialized measurement chips,24bitAD， 6-channel 4.8K synchronous sampling;

5)dataUpdate cycle0.04S to 1.00S configurable;

6)Overload capacity:1.2 times the range is sustainable; Instantaneous (<10 cycles) current 5 times, voltage 3 times the range without damage;

7)Input impedance: Voltage channel>1 k Ω/V; current channel≤10mΩ；

1.3.2communication interface

1)Interface type:RS-485 interface.

2)Communication protocol: MODBUS-RTU standard protocol;optionalDLT645 protocol;

3)Data format: can be set by software,“n,8,1”、 “e,8,1”、 “o,8,1”、 “n,8,2”；

4)Communication speed: adjustable1200、2400、4800、9600Bps、38400

1.3.3Measure output data

Multiple electrical parameters such as voltage, current, power, and electrical energy,seeMdobus data register list

1.3.4measurement accuracy

voltage、electric current:±0.2%FS；otherElectricity level:±0.5%FS；

1.3.5isolation

The DC power supply and RS-485 interface are grounded together and isolated from voltage and current inputs; Isolation voltage withstand 2500VDC;

1.3.6power supply

1)DC+10-30V power supply, peak voltage should not exceed+40V; typical power consumption:≤0.5W；

1.3.7working environment

1)Operating Temperature-20～+70℃Storage temperature:-40～+85℃；

2)Relative humidity:5～95%，No condensation (in40℃Below)；

3)Altitude:0-3000 meters;

4)Environment: A place without explosive, corrosive gases, conductive dust, significant shaking, vibration, and impact;

1.3.8Temperature drift:≤50ppm/℃；

1.3.9Installation method:35mmstandardDINrail mounting

1.3.10Module size： 118×72×42mm

2、 Application

2.1Appearance and installation

image 2.1 Outline dimension drawing (unit:mm）

Installation: Using35mmstandardDINInstall the guide rail, fix the guide rail, and then clip the module into the guide rail;

Wiring:

1)Insert the corresponding connection terminals into the module;

2)use0.2～1mm²Strip the cable from the end of each lineConnect 6mm to the terminal and insert the wire into the corresponding position of the connecting terminal;

3)The input line for 3-channel current should be selected according to the actual current on site;

2.2Terminal definition