PQM3000

Class A rack 19" power quality analyzer for CTs

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Highlights

Additional voltage and current measurement channels in comparison with other standard three-phase devices./li>
Current inputs for CTs to grant an accurate current measurement.
Continuous monitoring of the power quality and Class A certified measurements for voltage characteristics.

Simultaneous recording of events, Min/Avg/Max LOG and energy counters.
Several possibilities for instrument data transmission: Ethernet, Modbus TCP, 3G network.
User-friendly instrument web interface with multilingual pages.

Applications

Power monitoring & control systems
Switchboards, gensets, motor control centers, etc.
Individual machine load monitoring
Power demand analysis and management

Harmonic monitoring
Remote metering and cost allocation
Motor inrush current studies

Specifications

Power Supply

Auxiliary power voltage: 85...285 VAC 50/60 Hz / 65...250 VDC
Auxiliary power consumption: 15 VA max
Fuse: 250 VAC / 500 mA T type delayed
Backup battery: Li-Ion, 2500 mAh (>15 min autonomy)

Measurement inputs

Three-phase voltage inputs for direct connection / PT: P-N: max 580 V RMS CAT III, L-L: max 1000 V RMS CAT III
U4 voltage input for direct connection: max 580 V RMS CAT III
Voltage input crest factor: 2
Voltage input impedance: >2 MÎ©/phase
CT model - CT secondary: selectable 1A, 5A RMS
CT model - maximum current: 7A RMS
CT model - CT input burden: 0.04 VA
Clamp model - clamp output full scale: selectable 1V, 3V RMS
Both models - crest factor: 3
Frequency range: 42.5...57.5 Hz / 51...69 Hz
Frequency reference channel: Phase 1/Line 12 voltage
Sampling: Simultaneous, 51.2 kHz @50 Hz

Accuracy

Three-phase voltage: ±0.1% Un over 10 ... 150% Un range
U4 voltage: ±0.2% measurement
Currents: ±0.2% measurement (device)
Powers: ±0.2% measurement
Frequency: ±8 mHz
Harmonics: Class 1 (IEC/EN 61000-4-7)
Realtime clock (RTC): <1s in 24h without synchronisation; <5ms with GPS synchronisation
Active energy: Class 0.5S, compliant to IEC/EN 62053-22
Reactive energy: Class 1, compliant to IEC/EN 62053-23

I/O channels

Digital inputs: 11 optoisolated, 24 VDC ±20%
1PPS synchronisation input: 1 optoisolated, 24 VDC ±20%
Analog outputs: 4 optoisolated, 4 ... 20 mADC, max load 500 Î©
Digital input delay time: max 10 ms
1PPS input delay time: max 50 ns
Digital input consumption: max 7 mADC
1PPS input consumption: max 1 mADC
Analog output reaction time: max 200 ms

Memory

System memory: 128 MB Flash, 256 MB RAM
Recording memory: 4 GB (16 GB optional)

Communication

Ethernet ports: 2 Auto MDIX RJ45 10/100 Base Ethernet
GPS port: 1 RS485 optoisolated, 9600 bps
GPS antenna (on PQMGPS1 module): Active patch antenna, SMA connector
Protocols: HTTP, HTTPS, FTP, SFTP, NTP, NMEA, Modbus TCP
Integrated router: GPRS/UMTS-3G/HSPA

RTC Synchronisation

Synchronisation system: NTP and/or GPS

Environmental conditions

Installation and use code: PQI-A-FI1
Operating temperature (limit range): FI1, 3K6 -25 ... +55 °C
Storage temperature: -25 ... +75 °C
Relative humidity: 95% max without condensing
Altitude: max 2000 m AMSL

Mechanical characteristics

Mounting: Rack 19" 3U
Size: Front (LxH): 482.6x133.35mm, Rear (LxHxD): 380x128x215 mm
Weight: 4000 g

Safety standards

Product compliance: IEC/EN 62586-1, IEC/EN 62586-2
Certification: Class A, IEC/EN 61000-4-30:2015 Ed.3 for voltage
Safety: CAT III power supply, insulation class 2, 600 V
Directive: 2006/95/EC LV, EN 61010
EMC: 2004/108/EC EMC, EN 50081-2, EN 50082-2, EN 61326/A1,
EN 55011:1998+A1:1999+A2:2002,
EN 61000-6-2/-4-2/-4-3/-4-4/-4-5/-4-6/-4-11

Specifications for IEC/EN 61000-4-30 compliance

Frequency (5.1)

Uncertainty ±10 mHz
Measuring range 42.5 Hz - 57.5 Hz, 51Hz - 69 Hz

Magnitude of supply voltage (5.2)

Uncertainty ±0.1% of U_din
Measuring range 10% - 150% of U_din

Flicker (5.3)

Uncertainty ±5% of reading
Measuring range 0.2 - 10 P_st

Supply voltage dips and swells (5.4)

Uncertainty Magnitude: ±0.2% of U_din
Duration: ±1 cycle

Voltage interruptions (5.5)

Uncertainty Duration: ±1 cycle

Unbalance (5.7)

Uncertainty ±0.15%
Measuring range 0.5% - 5% u₂0.5% - 5% u₀

Harmonics (5.8)

Uncertainty IEC/EN 61000-4-7 Class I
Measuring range 10% - 200% Class 3 of IEC/EN 61000-2-4

Interharmonics (5.9)

Uncertainty IEC/EN 61000-4-7 Class I
Measuring range 10% - 200% Class 3 of IEC/EN 61000-2-4

Mains signalling (5.10)

Uncertainty ±5% of reading with measuring range 3%-15% of U_din
±0.15% of reading with measuring range 1%-3% of U_din
Measuring range 0% - 15% of U_din