Nexbe

Power quality · LV network

NC31 PQ & compliance monitor

An IP67-rated advanced power quality monitor for low-voltage networks.

Open datasheetPDF · 2.3 MB

1MHzAnalog sampling per circuit

0.1 %Voltage accuracy
IP67Ingress
1 µsGNSS timing
20 yrRetention
Nexbe Grid Edge Monitor enclosure

Advanced power quality

The NC31 provides four current-monitoring channels and captures synchronised waveforms at 1 MHz, with GNSS timing accuracy down to 1 µs for distributed event correlation.

Suitable for both permanent and temporary deployments, the NC31 supports standards-compliant power-quality reporting, including emissions analysis up to 900 kHz.

It identifies network emission sources and provides statistical tracking, trend analysis and summary reporting, giving the resolution needed for secondary distribution diagnostics, neutral-fault investigation, disturbance source attribution and solar-farm compliance.

Load

Profiling & fingerprinting

Quality

IEEE & IEC reporting

Faults

Anomaly & event alerts

Features & benefits

Measures three-phase and neutral current using Rogowski coil sensors.

Suitable for permanent installations and temporary field deployments.

Captures synchronised waveforms at 1 MHz with GNSS timing accuracy down to 1 µs.

Enables waveform event correlation across multiple meters and network locations.

Supports standards-compliant power quality and revenue reporting.

Supports standardised power quality reporting formats.

Estimates supply impedance to monitor connection integrity and detect degradation.

Provides early warning of unsafe operating conditions and degraded supply quality.

Performs high-frequency EMI analysis, including identification of line-side and load-side noise sources.

Helps locate sources of high-frequency noise within the network.

Technical specification

Show full technical specification

General

Events & notificationsReal-time anomaly detection with instant event alerts.GNSS-synchronised timestamps with microsecond accuracy.
Fault analysisRaptorVision™ waveform capture with adaptive sampling from 2 kHz to 1 MHz.

Analog sampling frequency

Revenue20 kHz per circuit
Power quality200 kHz per circuit
Compliance, e.g. solar installations1 MHz per circuit

Power quality metrics

HarmonicsHarmonics, sub-harmonics and interharmonics from 5 Hz to 10 kHz
Waveform capture20 kHz for 10 cycles + GNSS200 kHz for 1 cycle + GNSS
Conductive emissionsVoltage & current across three bands:2-10 kHz, 10-150 kHz, 150-900 kHz

Reporting

RevenueHHR & TOU (in HERM, EIEP3 formats)Active & reactive, inject & extract
Power qualityIEEE 1159.3 (PQDIF)IEC 61000-4-3 (10 min-24 hr interval)
Load currentSampled at 10 sec

Performance & environment

Voltage accuracy0.1 %
Current accuracy0.5 %
Freq. accuracy45-65 Hz, 0.1 %
Operating-25 °C to +60 °C
Storage-40 °C to +70 °C
Rel. humidity75 % mean

Power, sensing & timing

Supply voltage110-480 V AC
Consumption3 W peak
Rogowski coil10-500 mV/kA
Real-time clock< 5 s/mth, NTP server or GNSS sync
Time accuracy< 5 s/month (unsynchronised)
Sync methodNTP server when connected
Battery backup10 years at 23 °C, unpowered

Physical & wiring

EnclosurePolycarbonate
IngressIP67
Protection classII
Dimensions221 mm × 145 mm × 55 mm

Data memory

Reports & events512 MB storage
Retention20 years
Encryption256-bit AES

Communication

StandardCellular LTE CAT-M1 NB-IoT (eSIM)
OptionNR+ (mesh)

Standards & compliance

AS/NZS61439.1:201610.9, 10.9.2, 10.9.3, 10.9.4, 11.9

Ordering options

NC313 phases, 1 feeder circuit
NC323 phases, 2 feeder circuits
NC333 phases, 3 feeder circuits

Product downloads

NC31 PDF coverPreview PDF

Grid-edge monitoring

NC31

Power quality and compliance monitoring with 1 MHz sampling and emissions analysis.

PDF · 2 pages · 2.3 MBOpen PDF

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