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Product details
◆ Overview
The AT2008 three-phase complex rate harmonic multifunctional power meter adopts digital signal processing chips and high-precision energy metering chips, which can accurately and stably measure all commonly used power parameters in the three-phase power grid, including three-phase voltage, three-phase current, active power, reactive power, apparent power, grid frequency, power factor, four quadrant energy, voltage imbalance, current imbalance, voltage total harmonic and sub harmonic content, current harmonic total harmonic and sub harmonic content, zero sequence current, UIPQ demand, time-sharing billing with four rates and eight time periods, switch input monitoring, relay output control, and equipped with two RS485 communication interfaces, active energy pulse output and reactive energy pulse output. Functions such as pulse output, SOE event recording and alarm.
As an advanced intelligent and digital front-end acquisition unit for power grids, three-phase complex rate harmonic multifunctional power meters have been widely used in various control systems, SCADA systems, energy management systems, substation automation, distribution network automation, residential power monitoring, industrial automation, intelligent buildings, intelligent distribution panels, and switchgear. They have the advantages of easy installation, simple wiring, easy maintenance, small engineering quantity, programmable input parameters on site, and the ability to complete group network communication with different PLCs, frequency converters, industrial control computers, etc. in the industry. All products are self-developed and produced by our company, supporting customized functions. Please contact our company for details.
◆ Function Introduction
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Measurement function |
prepare note |
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real-time measurement |
three-phase voltage |
Basic functions |
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three-phase current |
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Power, frequency, power factor |
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electricity metering |
active energy |
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Reactive energy |
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Bidirectional measurement |
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demand |
UIPQslip |
Extended features |
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Harmonic measurement |
Total harmonic content2-31Sub harmonic and subharmonic content31time |
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multi-rate |
4Seed rate8atime slot |
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Electric energy pulse |
Active and reactive passive node outputs |
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transmitter output |
4-20mA/0-5V |
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Switch input |
Passive node |
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relay output |
AC250V/5Aremote control/call the police |
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Event log |
call the police |
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communication |
RS485interfaceMODBUS-RTU （1Road or2Road) |
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display mode |
LCDLCD (Liquid Crystal Display) |
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◆ Technical parameters
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performance |
ginseng number |
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lose enter measure quantity apparent show |
network |
Three phase three wire, three phase four wire |
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voltage |
rated value |
AC380V/100V |
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overload |
continued:1.2times Instantaneous:10times/10s |
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merit consume |
<1VA(Each phase) |
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block resist |
>500kΩ |
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essence degree |
RMSMeasurement, accuracy level0.5level |
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current |
rated value |
AC0-5A |
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overload |
continued:1.2times Instantaneous:10times/10s |
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merit consume |
<0.4VA(Each phase) |
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block resist |
<2mΩ |
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accuracy |
RMSMeasurement, accuracy level0.5level |
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frequency rate |
45-65Hz |
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merit rate |
Visual power, active power accuracy0.5Grade, reactive power accuracy1.0level |
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electricity can |
Four quadrant measurement, active poweraccuratedegree1.0Grade, reactive poweraccuratedegree1.5level |
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harmony wave |
Total harmonic content2-31Sub harmonic and subharmonic content2-31time |
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power supply |
scope of work |
AC220VorAC/DC80-270V |
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merit consume |
≤3VA |
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output |
digital interface |
RS-485interfaceMODBUS-RTUAgreement orDLT645-1997/2007 |
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pulse output |
2Pulse output of road electrical energy,Pulse constant:5000imp/kWh |
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environment |
working environment |
-10-55℃ |
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storage environment |
-20-75℃ |
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safety |
endure press |
>2.5kV/1min |
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cease fate |
Input, output, and power supply to the chassis>500MΩ |
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Electric energy measurement range |
Measurement range of active and reactive electricity0-kWh, Exceeding this value, the electrical degree will be0Start counting |
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◆ External dimensions
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Panel Size （L×H mm） |
installation dimensions (A×B mm) |
cutout size (S×Y mm) |
Chief of Staff （N mm） |
depth （M mm） |
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96×96 |
91×91 |
92×92 |
93 |
78 |
Typical wiring diagram
1. Backboard terminal diagram
2. Functional Description of Wiring Terminals
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power supply |
1,2 |
AC220VorAC/DC80-270V |
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current signal |
4,5,6,7,8,9 |
4，6，8forA,B,CPhase current inlet |
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voltage signal |
11,12,13,14 |
Three phase voltage input respectivelyUATheUBTheUCTheUN |
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relay output |
15,16,17,18,19,20,21,22 |
4Road relay output |
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transmitter output |
30-34 |
4Road transmission output,30For the public end |
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Electric energy pulse |
47,48,49,50 |
47,49For passive output positive terminal |
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485interface |
58，59 |
respectivelyA+TheB- |
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Discrete input |
70-78 |
8Road switch input,70For the public end |
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