High-End Portable Power Quality Instrument
The Metrum PQX3-FR-P Portable Instrument is developed to meet the latest measurement requirements including both Class A Power Quality (PQI-A) and full featured Fault Recording techniques.
The instrument are equipped with multiple voltage and current inputs and can be used for many different measurement applications. Highest measurement performance provides reliable results in demanding environments including electrical grid sites, industrial areas, wind farms and solar cell parks.
Highest Measurement Performance
The PQX3-FR-P has an improved measurement performance including a high sample rate (1024 samples/period) and several different measurement channels. The improved disturbance detection, trig mechanisms and measurements of higher harmonics, makes the instrument excellent for not only performing normative measurements according to the voltage quality standards, but also for being a versatile means of detecting all kinds of problems in the electrical grid.
Remote Realtime Supervision and Control
The remote connectivity facilitates easy access, configuration and data analysis from the office. The instrument can also utilize an existing communication infrastructure using e.g. Modbus, IEC61850 or OPC‑UA. This alternative can save a lot of money and gives an easier way for effective remotely managed measurements.
Technical specifications
Inputs/Outputs
| Parameters | Specification | Information | PQX3-FR-P |
|---|---|---|---|
| Voltage Inputs | 0-460 V RMS | Differential voltage inputs (+/-), 51,2 kHz/channel | 4 |
| Voltage HV Inputs | 0-6 kV peak | Built-in high frequency inputs (1 MHz) | 4 |
| Current Inputs (BNC) | 2 V RMS | Current Clamp Inputs 51,2 kHz/channel | 4 |
| Current Inputs | 0-10 A RMS | Differential current inputs (+/-), 51,2 kHz/channel | 5 |
| General Inputs | 4-20 mA | General measurement inputs | 4 |
| Digital Inputs | 20 V peak - 150 V peak | Digital inputs supporting FR-options | 4 |
| Digital Outputs | Max 150 Vpeak (0.1 A) | For alarm and control | 2 |
Power Supply
| Parameters | Specification | Information | PQX3-FR-P |
|---|---|---|---|
| Power Supply Range | 85-264 VAC/110-350 VDC | (47-63 Hz) | Yes |
| Internal Backup | Yes |
Norm Conformity
| Parameters | Specification | Information | PQX3-FR-P |
|---|---|---|---|
| IEC 62056, PQI-A | Power Quality Instrument Product Standard | Yes | |
| IEC 61000-4-30, Class A, ED.3 | < 0,1 % | Reference instrument | Yes |
| IEC 61000-4-7 | Harmonic measurements | 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, Netcode NL, ZS387 etc) | Wide range of standards supported | Yes | |
| User defined reports | Calculated in the instrument | Yes | |
| Storage intervals | Selectable storage intervals | Yes | |
| PQDIF format | Optional export | Yes |
Hardware
| Parameters | Information | PQX3-FR-P |
|---|---|---|
| Memory | 32 GB | |
| Sampling-rate, U/I Standard Inputs | Selectable sampling frequency | 51,2 kHz |
| Sampling-rate, HV Inputs | 1 MHz | |
| Accuracy | IEC 61000-4-30, Class A | < 0,1 % |
| Resolution (U/I) | Voltage/Current Inputs | 16 bit |
| Resolution (GI) | General Inputs | 12 bit |
| Input Impedance - Voltage Inputs | 10 MOhm | |
| Input Impedance - Current Inputs (I5-I9) | 10 mOhm | |
| Anti-alias filter | Yes | |
| PLL-synchronisation | Yes |
Communication
| Parameters | Information | PQX3-FR-P |
|---|---|---|
| USB | Computer port | Yes |
| USB 2 | Data storage | Yes |
| Ethernetport 1 (RJ-45) | Supports Modbus-TCP/OPC-UA/IEC61850 | Yes |
| Ethernetport 2 (RJ-45) | For redundancy | Yes |
| Time synchronization | For external time synchonization (NTP/PTP/IRIG-B) | Yes |