Proactive analysis for digitalized grid
Metrum PQX3-M is a class A reference instrument for energy, power quality and disturbance analysis. The instrument is designed for easy installation in various environments and applications and thus offers an optimal and comprehensive measurement for both electricity distribution companies and industry.
The measuring instrument has maximum measurement performance. Due to high accuracy and an intelligent basic platform, the Metrum PQX3-M works excellently as both an energy control meter and a class A power quality reference meter.
In addition, the instrument is adapted for proactive disturbance analysis. Detect deviations before they lead to costly faults and outages!
High-quality analysis
The PQX3 instrument series was developed to provide high-quality measurement data with a focus on energy, power quality and disturbances. All data can be analyzed with the central Metrum PQ Controller system, which includes a report generator according to current standards, and several different analysis functions (such as graphical disturbance analysis).
Third-generation measuring instrument
The new PQX3-M was developed with the latest available technology and belongs to the third generation of Metrum measuring instruments. The high-performance platform includes proactive and automatic analysis of data that facilitates its use throughout the process.
The instruments support both multi-triggering and area triggering with several selectable configuration options. This expands the field of application and gives the possibility of dynamic control.
Disturbance recorder
Metrum PQX3-M is a full-scale disturbance recorder. The digital inputs can be used to trigger various events, such as breaker switches. The instrument records waveforms and current status at high speed on all channels.
The high-resolution measurement enables proactive fault analysis and detection of incipient and intermittent faults in the grid, minimizing the risk of unnecessary and costly outages.
Technical specification
Inputs/outputs
| Parameters | Specification | Information | PQX3-PQR |
|---|---|---|---|
| Voltage inputs | 0–460 V RMS | Differential voltage inputs (+/-), 51.2 kHz/channel | 4 |
| HF voltage inputs | 0–6 kV peak | Built-in high-frequency inputs (1 MHz) | 4 |
| Current inputs | 0–10 A RMS | Differential current inputs (+/-), 51.2 kHz/channel | 4 |
| General inputs | -20 mA to +20 mA | 51.2 KHz | 2 |
| Digital inputs | 20–150 VDC | Digital inputs that support FR options | 2 |
| Digital outputs | 120 VAC/150 VDC | For alarm and control | 2 |
Power supply
| Parameters | Specification | Information | PQX3-PQR |
|---|---|---|---|
| Supply voltage | 85–264 VAC/110–350 VDC | (47–63 Hz) | Yes |
| Built-in backup | Yes |
Norm compliance
| Parameters | Specification | Information | PQX3-PQR |
|---|---|---|---|
| IEC 61000-4-30, class A | < 0.1% | Reference instrument | Yes |
| IEC 61000-4-7 | Harmonic measurement | Yes | |
| IEC 61000-4-15 | Flicker measurements | Yes | |
| EN 50 160 | Calculated in the instrument | Yes | |
| EIFS 2013:1 | Calculated in the instrument | Yes | |
| National standards (FoL, DEFU, NL, ZS387, etc.) | Large number of standards supported | Yes | |
| Custom reports | Calculated in the instrument | Yes | |
| Storage intervals | Selectable storage intervals | Yes | |
| PQDIF-format | Selectable export | Yes |
Instrument
| Parameters | Information | PQX3-PQR |
|---|---|---|
| Memory | 32 GB | |
| Sampling rate, U/I Standard inputs | 51.2 kHz | |
| Sampling rate, HF inputs | 1 MHz | |
| Accuracy | IEC 61000-4-30, class A | < 0.1% |
| Resolution (U/I) | Voltage/current inputs | 16 bit |
| Resolution (GI) | General measurement inputs | 16 bit |
| Input impedance – voltage inputs | 10 MOhm | |
| Input impedance – current inputs | 10 mOhm | |
| Anti-aliasing filter | Yes | |
| PLL synchronization | Yes |
Communication
| Parameters | Specification | Information | PQX3-PQR |
|---|---|---|---|
| USB | Computer port | Yes | |
| Ethernet port 1 (RJ-45) | Ethernet port | Yes | |
| Ethernet port 2 (RJ-45) | For redundancy | Yes | |
| Time synchronization | For external time synchronization | (NTP/PTP/IRIG-B) | Yes |
Physical data
| Parameters | Information |
|---|---|
| Size (H x D x W) | 160 x 240 x 90 mm |
| IP class | IP41 |
| Weight | 1.4 kg |
| Humidity | 10–85% non-condensing |
| Temperature | -10 °C to +55 °C |