iMeter 7A Advanced Power Quality Monitor

SKU:
$2,480.00 USD

Sub-Model: iMeter 7A-A5935AAE

iMeter 7A-A5935AAE
iMeter 7A-A5935AAE
iMeter 7A-A5925AAE

Features：

  • PQ monitoring at HV, MV and LV Utility Substations
  • Data Centers, Semiconductor Fabs, Heavy Industries
  • Renewable Energy Applications
  • 7x24 Automated Manufacturing Facilities
  • Dips/Swells/Interruptions, Transients, Flickers & Harmonics Monitoring
  • Mains and critical feeder monitoring
  • IEC 61850 support for Substation Automation and Smart Grid
  • Retrofit applications with optional Class 1 Split-Core Current Probes (SCCPs)

Main Documents

Catalogue English Datasheet Ordering Guide User Manual

Description

iMeter 7A Advanced Power Quality Monitor


Product Overview
  • iMeter 7A is one of CET’s latest Advanced PQ Analyzer designed for the compliance monitoring market as it offers unsurpassed functionality by combining Class 0.2S Accuracy and advanced PQ Features in a compact DIN 144 form factor with a stunning, high resolution, color TFT LCD display. The iMeter 7A complies with such standards as IEC62053-22 Class 0.2S, IEC61000-4-30 Ed. 3.1 Class A, IEC61000-4-15, IEC61000-4-7, EN50160, IEEE Std 519-2022 and IEC61850 for Substation Automation.
  • Further, the iMeter 7A offers 4GB memory, dual 10/100BaseT Ethernet and one RS-485 ports as well as extensive I/O with 4xDI, 3xDO and optionally 2xSS Pulse Output, 2xAI or 2xRTD. These features likely make the iMeter 7A one of the most Advanced PQ Analyzers for an intelligent Power Quality Monitoring System.

Product Highlight
  • PQ monitoring at HV, MV and LV Utility Substations
  • IEC 62053-22 Class 0.2S, IEC61000-4-30 Ed. 3.1 Class A Certified
  • Data Centers, Semiconductor Fabs, Heavy Industries
  • Renewable Energy Applications
  • 7x24 Automated Manufacturing Facilities
  • Dips/Swells/Interruptions, Transients, Flickers & Harmonics Monitoring
  • Mains and critical feeder monitoring
  • IEC 61850 support for Substation Automation and Smart Grid
  • Retrofit applications with optional Class 1 Split-Core Current Probes (SCCPs)

Typical Application
  • PQ monitoring at LV Utility Substations
  • Data Centers, Semiconductor Fabs, Heavy Industries
  • 7x24 Automated Manufacturing Facilities
  • Dips, Swells, Interruptions, Transients, Flickers & Harmonics Monitoring
  • Mains and Critical Feeder Monitoring
  • IEC 61850 support for Substation Automation and Smart Grid
  • Retrofit applications with optional Class 1 Split-Core Current Probes

Related Products

iMeter 6 Advanced Power Quality Monitor

iMeter 8 Advanced Power Quality Monitor

iMeter D7 Advanced Power Quality Monitor

Related Solutions

Specification

Technical Specification

VoltageInputs(V1,V2,V3,VN,V4,V4N)
Standard Un
400VLN/690VLL+20%
Range
5V to 2Un for 400VLN nominal
Overload
2xUn continuous,4xUn for 1s
Burden
<0.5VA/per phase
PT Ratio
  Primary
  Secondary
  V4 Primary
  V4 Secondary

1 to 1,000,000
1 to 1,500
1 to 1,000,000
1 to 1,500
Measurement Category
CAT III 1000V
Frequency
40Hz-60Hz@50Hz,48Hz-72Hz@60Hz
Current Inputs(·I11,I12,·I21,I22,·I31,I32,·I41,I42)
Standard(In)
5A(Standard),1A(Optional)
Range
1% to 400% In
Starting Current
0.1% In
Overload
4xIn continuous,10xIn for 1s
Burden
<0.5VA/per phase @ 5A
<0.1VA/per phase @ 1A
CT Ratio
  Primary
  Secondary
  I4 Primary
  I4 Secondary

1 to 30,000
1 to 50
1 to 30,000
1 to 50
SCCP Options
  SCCP-50A-500mV
  SCCP-200A-200mV
  SCCP-500A-500mV
  SCCP-5000-500mV
Split-Core Current Probe Input @ max. 500mV
5A/50A (In/Imax), max. 500mV Output
20A/200A (In/Imax), max. 200mV Output
500A Imax, max. 500mV Output
Selectable 500A/5000A (Imax) Rogowski Coil, max. 500mV Output
SCCT Options
PMC-SCCT-100A-40mA-16-A, Ø=16mm, Class 0.5
PMC-SCCT-200A-40mA-24-A, Ø=24mm, Class 0.5
PMC-SCCT-400A-40mA-35-A, Ø=35mm, Class 0.5
PMC-SCCT-800A-40mA-A, 80x50mm, Class 0.5
PMC-SCCT-1600A-40mA-A, 130x55mm, Class 0.5
SCCTA Option
PMC-SCCT-5A-2mA-16-A,Ø=16mm, Class 1
Power Supply(L+,N-)
Standard
95-250VAC/VDC ± 10%, 47-440 Hz
Optional
20-60VDC
Burden
< 14VA/10W @ 250VAC/DC
<6W @ 24VDC
Overvoltage Category
OVC III 300V
Digital Inputs(DIC,DI1,DI2,DI3,DI4,DIC2,DI5,DI6,DI7,DI8)
Type
Dry contact,24VDC internally wetted
Sampling
1000Hz
Hysteresis
1ms minimum
Digital Outputs(DO11,DO12,DO21,DO22,DO31,DO32,DO41,DO42)
Type
Form A Mechanical Relay
Loading
5A@250VAC or 30VDC
Alarm Output(Alarm)
Loading
5A @ 250VAC or 30VDC
Optional Solid State Pulse Outputs(E1+,E1-,E2+,E2-)
Type
Form A Solid State Relay
Isolation
Optical
Max.Load Voltage
30VDC
Max.Forward Current
100mA
Optional Analog Inputs(AI1+,AI1-,AI2+,AI2-,SH)
Type
0-20/4-20mA
Overload
24mA maximum
Optional Temperature Inputs(TC11,TC12,TC21,TC22,SH)
RTD Type
2-Wire PT100 (sensor not included)
Measurement Range
-40°C to +200°C
GPS Input(CLK+,CLK-,SH)
Type
GPS,IRIG-B
Accuracy
1ms
Terminals Max.Torque
U&I Inputs
1.2N·m
DI,DO,AI,TC,GPS&RS-485
0.4N·m
Environmental Conditions
Operating Temp.
-25 °C to + 70°C
Storage Temp.
-40 °C to + 85°C
Humidity
5% to 95% non-condensing
Atmospheric Pressure
63 kPa to 110 kPa
Pollution Degree
2
Mechanical Characteristics
Panel Cutout
138x138 mm
Unit Dimensions
144x144x128 mm
IP Rating
IP52
Communications
Protocol
Modbus RTU, Modbus TCP ,HTTPS, NTP, SMTPS, SNMP, FTPS, Ethernet Gateway, MQTT,IPsec VPN and IEC61850, IEEE1588(PTP)
RS-485 Port
1
Ethernet
2
Web Server
√
Features Summary
Display (Backlit)
Color TFT 800x480(Backlit)
Type of Measurement
ULN per Phase &Avg.
ULL per Phase&Avg.
Current per Phase &Avg.
Neutral Current (Meas./Calc.)
Frequency
kW per Phase & Total
kvar per Phase & Total
kVA per Phase& Total
PF per Phase& Total
kWh lmport/Export
kvarh Import/Export
kVAh Total
Power Quality
THD Voltage & Current
TOHD Voltage & Current
TEHD Voltage & Current
2nd-63rd Harmonics
K-Factor
Voltage/Current Unbalance
Dip Swell Detection
Transient Detection
2-150kHz Conducted Emission
Time Synchronization
RTC,GPS,IRIG-B,GPS,IEEE 1588(PTP),NTP, Modbus RTU/TCP,
Demands
Present and Predicted Demands
Max.Demands for This Month & Last Month
Max./Min. values per Demand Interval
Demand synchronization with DI
Multi-Tariff TOU capability
Two TOU schedules, each providing:
12 Seasons
90 Holidays
20 Daily Profiles, each with 12 Periods in 15-minute interval
8 Tariffs
Setpoints
64 Setpoints
Logs
Max./Min.Log
4 Recorders
Interval Energy Recorder
65535 entries
Accumulative Energy Recorder
65535 entries
Data Recorder
8 DR Logs
Max. Recording Depth @ 65,535 records
Statistical Data Recorder (SDR)
8 SDR Logs
90 days @ 3-minute, 300 days @ 10-minute, 450-day @ 15-minute
Waveform Recorder
128 entries
Disturbance Waveform Recorder
128 entries
RMS Recorder
128 entries
Pst Log
56520 entries (i.e. 1-year: 365x24x6)
Plt Log
4380 entries (i.e. 1-year: 365x12)
SOE Log
1024 entries
Device Log
1024 entries
On-board Log Memory
4GB

Accuracy

Parameters
Accuracy
Resolution
Voltage
±0.1%
0.001V
I1,I2,I3,I4
5A/1A:±0.1%
SCCT/SCCTA:±0.1% + Error of SCCT
SCCPA:±0.1% + Error of SCCP
0.001A
P,Q,S
5A/1A:±0.2%
SCCT/SCCTA:±0.5%
SCCPA:±0.5%
0.001W/var/VA
kWh,kVAh
5A/1A:IEC 62053-22 Class 0.2S
SCCT/SCCTA:IEC 62053-21 Class 1
SCCPA:IEC 62053-21 Class 1
0.1kXh
kvarh
5A/1A:IEC 62053-24 Class 0.5S
    IEC 62053-23 Class 2
SCCT/SCCTA:IEC 62053-24 Class 1
    IEC 62053-23 Class 2
SCCPA:IEC 62053-24 Class 1     IEC 62053-23 Class 2
0.1kvarh
PF
5A/1A:±0.2%
SCCT/SCCTA:±0.5%
SCCPA:±0.5%
0.001
Fundamental Phase Angle
5A/1A:±0.2°
SCCT/SCCTA:±0.2° + Phase Error of SCCT
SCCPA:±0.2° + Phase Error of SCCP
0.1°
Harmonics Phase Angle
5A/1A:±5°
SCCT/SCCTA:±5° + Phase Error of SCCT
SCCPA:±5° + Phase Error of SCCP
0.1°
Freq.,Freq.Deviation
±0.003 Hz
0.001Hz
Harmonics, Interharmonics
IEC 61000-4-7 Class I
0.01%
U Unbalance
±0.1%
0.01%
I Unbalance
±0.5%
0.01%
Pst,Plt
IEC 61000-4-15 Class F1
0.001

Standards of Compliance

Safety Requirements
CE LVD 2014/35/EU
EN 61010-1: 2010
EN 61010-2-030: 2010
Electrical Safety in Low Voltage Distribution Systems up to 1000Vac and 1500Vdc
IEC 61557-12:2018(PMD)
Insulation
AC Voltage: 2kV@1 minute
Insulation Resistance: >100MΩ
Impulse Voltage: 6kV,1.2/50µs
IEC 62052-11: 2003
IEC 62053-22: 2003
EN 61010-1: 2010
Electromagnetic Compatibility CE EMC Directive 2014/30/EU(EN 61326:2013)
Immunity Tests
Electrostatic Discharge
EN 61000-4-2:2009
Radiated Fields
EN 61000-4-3:2006+A1:2008+A2:2010
Fast Transients
EN 61000-4-4:2012
Surges
EN 61000-4-5:2014+A1:2017
Conducted Disturbances
EN 61000-4-6:2014
Magnetic Fields
EN 61000-4-8:2010
Voltage Dips and Interruptions
EN 61000-4-11:2004+A1:2017
Ring Waves
EN 61000-4-12:2017
Emission Tests
Limits and Methods of Measurement of Electromagnetic Disturbance Characteristics of Industrial,Scientific and Medical(ISM) Radio-Frequency Equipment
EN 55011:2016
Limits and Methods of Measurement of Radio Disturbance Characteristics of Information Technology Equipment
EN 55032:2015
Limits for Harmonic Current Emissions for Equipment with Rated Current≤16A
EN 61000-3-2:2014
Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply Systems for Equipment with Rated Current≤16A
EN 61000-3-3:2013
Emission Standard for Industrial Environments
EN 61000-6-4:2007+A1:2011
Mechanical Tests
Spring Hammer Test
IEC 62052-11:2003
Vibration Test
IEC 62052-11:2003
Shock Test
IEC 62052-11:2003
Power Quality
Voltage Characteristics of Electricity supplied by Public Distribution Systems
EN 50160: 2010
General Guide on Harmonic and Interharmonic Measurements and Instrumentation, for Power Supply Systems and Equipment Connected Thereto
IEC 61000-4-7: 2009
Flickermeter - Functional and Design Specifications
IEC 61000-4-15: 2010
Testing and Measurement Techniques-Power Quality Measurement Methods
IEC 61000-4-30: 2021 Ed. 3.1 Class A Certified
Power Quality Measurement in Power Supply Systems-Part2: Functional Test and Uncertainty Requirements
IEC 62586-2: 2021 Ed. 2.1

Wiring Mode

Wiring Mode
3P4W
3-Phase 4-Wire Wye Direct Connection with 4CTs
3-Phase 4-Wire Wye with 3PTs and 4CTs
3P3W
3-Phase 3-Wire Grounded Wye with no PTs & 3CTs
3-Phase 3-Wire Grounded Wye with 3PTs and 3CTs
3-Phase 3-Wire Direct Delta Connection with 3CTs
3-Phase 3-Wire Open Delta with 2PTs and 3CTs
3-Phase 3-Wire Open Delta with 2PTs and 2CTs